The EK-18 single-bucket wheeled slewing excavator is a high-performance earth-moving special machine. It is used in the development of pits, digging trenches in the soil of any category, from the first to the fourth. EK-18 performs loading and unloading of cargo, loosened rock, bulk cargo. This excavator is also used for the destruction / dismantling of old brick and reinforced concrete structures of medium strength.

The manufacturer defines the temperature range in which the EK-18 excavator maintains its performance as "from -40 to +40 degrees Celsius." The scope of this technique is expanding with the use of a variety of interchangeable working equipment. By special order, this excavator can be equipped with a Bosch-Rexroth hydraulic apparator (hydraulic distributor, hydraulic motors, pumping unit and control units).

Currently, the EK-18 manufacturer, the Tver Excavator Plant (TVEKS), is part of the RM-Terex company, one of the leading machine-building companies in Russia. It specializes in construction and road equipment and unites 4 plants: Tver excavator, Bryansk Arsenal, Chelyabinsk plant of road construction machines and Zavolzhsky - caterpillar tractors.

Through 78 dealer centers in Russia and the CIS, RM-Terex sells, maintains and provides spare parts for: backhoe loaders, wheeled and crawler excavators, motor graders, caterpillar snow and swamp vehicles, frontal and forklifts, industrial loaders. All manufactured equipment has the official status "Made in Russia".

The Tver excavator plant (during the years of the USSR it was called Kalininsky, like the city itself) dates back to 1943. Long before the final victory in the Great Patriotic War, the construction of a plant for the production of spare parts and assemblies for excavators, saw shafts, multi-storey lifts, other peaceful equipment and consumer goods began in Kalinin.

Shortly after the end of the war, the enterprise began production of the country's first pneumatic wheeled excavators with cable suspension (model E-255). In the 1970s, the plant mastered the production of hydraulic wheeled and tracked excavators. In 1978, one of these models - EO-3322B - was awarded the State Quality Mark. In March 1981, the fifty-thousandth excavator rolled off the assembly line of the enterprise, and the plant was awarded the Order of the Red Banner of Labor for replenishing the national economy with reliable and productive equipment.

TVEKS engines traditionally use Minsk ones. Most of the other units, assemblies and components of excavators are produced directly at the Tver excavator, even in our time. According to statistics, more than 90% of special vehicles produced at the plant are equipped with hydraulics domestic production and Belarusian diesel engines, and only about eight percent are produced with Bosch-Rexroth hydraulics and imported Perkins engines.

The design and construction of the excavator

The wheel excavator EK-18 consists of the following main components and systems:

• pneumowheel undercarriage,
• turntable,
• hydraulic system,
• pneumatic control system,
• electrical equipment,
• working equipment.

The pneumowheel undercarriage of the special vehicle is made on 2 driving axles. It can provide enough high speed moving around job sites and on the roads between them, as well as, if necessary, the simple and safe towing of the EK-18 with a tractor.

The front axle is steerable. The tires on it are single; the bridge itself is balanced on the running frame. The rear axle is unmanaged, gable; attached to the running frame rigidly. The axles are driven through a gearbox and cardan shafts, from a low-torque hydraulic motor. Before excavation, the excavator rests, to increase stability, on folding supports and a blade support.

The turntable is attached to the turntable, which is mounted on the running frame. On the turntable are fixed: a power unit and a tank for diesel fuel, a rotary mechanism, an operator's cabin, a heating and ventilation unit, hydraulic equipment (hydraulic tank, hydraulic distributors, oil-cooling unit, etc.), elements of electrical and pneumatic equipment, as well as a counterweight.

The working equipment of the EK-18 excavator is installed in the lugs of the turntable and secured with fingers. The design of this special machine provides for the possibility of using all kinds of interchangeable working equipment and working bodies. In addition to a backhoe, this is a grab, hydraulic hammer, ripper, hydraulic shears, log grab, etc.

In addition, the technological capabilities of the EK-18 expand, increasing the degree of versatility of this special equipment, by the front blade-support. They can fill up trenches, clean the surface of the soil, rake up construction debris, and plan the work site.

The drive of all movements by replaceable working equipment, as well as the control of the executive bodies of the excavator and its steering– hydraulic. The control of the wheel brakes and the parking brake, gear shifting is pneumatic. The EK-18 is equipped with electric lighting, ventilation, signaling and diesel start systems, and is ready to work at any time of the day and in any climate, while maintaining normal working conditions in the cab.

As part of the EK-18 undercarriage: undercarriage frame with a turntable; folding supports + support-dump; gearbox, front and rear axles, which are connected cardan shafts; mechanism for turning wheels and controlling it; the central manifold, which is connected by pipelines to the hydraulic motor of the gearbox, the hydraulic cylinders of the hinged supports and the hydraulic cylinders of the support-dump, as well as to the components of the pneumatic control system: built-in air reservoir, wheel brakes, parking brake, gear change mechanism.

The slewing device on excavators of this model is a bearing-type swivel bearing: roller, single-row, with internal teeth. The platform is rotated by means of a low-torque axial-piston hydraulic motor with a 2-stage planetary gearbox. It increases the torque and reduces the speed of the turntable.

The gearbox (gearbox) EK-18 is used to transmit torque from the hydraulic motor to the drive axles; for gear shifting, on/off front axle and prevention of spontaneous start of the movement of the excavator (activation of the parking brake). The gearbox consists of a hydraulic motor, a 2-speed gear, a gear shift mechanism, parking brake. In the bridges of the excavator mounted pneumatic brakes block type.

Parking brake EK-18 - permanently closed type, with pneumoelectric control. Gear shifting can only be done after the excavator has come to a complete stop. Pneumatic system special vehicles are involved in the operation of the brakes, in gear shifting of the gearbox, in turning on / off the front axle.

Bridges

As part of rear axle excavator of this model - main gear, crankcase, wheel hubs with parts placed in them (planetary gear, axle shafts, bearings).

When the EK-18 is moving straight ahead, flat road, then the driving wheels on the right and left pass equal paths. When turning, as well as when driving on uneven ground, the drive wheels of the excavator, which move along the inner radius and experience a lot of resistance, rotate more slowly than the wheels that move along the outer radius and experience less resistance.

The wheel turning control mechanism consists of a system of levers, longitudinal and transverse links, which ensure the turning of the special vehicle both when driving independently and when it is towed by a tractor.

The vast majority of excavators of this model are equipped with diesel engines from the Minsk Motor Plant. In the EK-18-20 modification, this is the MMZ D-245S, with a power of 105 horsepower (at 2200 rpm) and a maximum torque of 384 N.m (at 1400 rpm). In modification EK-18-20 - MMZ D-245.2S2, developing power122 horsepower, at 2200 rpm and 501 N.m of torque (at 1600 rpm).

MMZ D-245S.

In both versions, it is a four-stroke four-cylinder diesel engine with in-line vertical arrangement of cylinders and direct injection of diesel fuel, with a turbocharger. The working volume is 4.75 liters; cylinder diameter - 110 mm, piston stroke - 125 mm; compression ratio - 17.1.

Imported diesel Perkins 1104C-44TA (modification EK-18-20) - similar design. Also in-line four-cylinder, equipped with a turbocharging system. Its maximum power is 123 horsepower at 2200 rpm. The working volume of the Perkins motor is 4.4 liters. The cylinder diameter is 105 millimeters, the piston stroke is 127 millimeters. The maximum torque reaches 500 N.m.

On the EK-18 excavator, you can install liquid heater Hydronic-10 (12 V) - for preheating motor. To warm up the cab interior in cold weather, the excavator has a Zenit-8000 liquid heater.

As already noted, the design of the EK-18 excavator provides for the possibility of using this special equipment with various types of interchangeable working bodies. Among them are backhoe buckets of various sizes, clamshell equipment (digging and loading), hydraulic hammer MG-300, hydraulic shears IG-821 and IG-811, concrete grinder, log grab with a load capacity of 3 tons, ripper 225-00-40.17.400 .

The main type of interchangeable working equipment - a backhoe - is intended for a wide range of earthmoving and loading / unloading works. Its components: an arrow, a handle, a replaceable working body, a bucket drive mechanism, hydraulic cylinders, a system of pipelines and high-pressure hoses that connect the hydraulic cylinders with the hydraulic system of the excavator. Replaceable working bodies of the backhoe - digging buckets of different volumes (from 0.65 to 1 cubic meter) and practical purposes.

The hydraulic system of the excavator is designed to drive its power mechanisms: for movement, platform turns, operation of working equipment, outriggers and blade (1st circuit), hydraulic control (2nd circuit) and steering (3rd circuit).

The pumping unit is a 3-flow hydraulic drive unit that converts the rotational energy of the drive shaft into the energy of the working fluid flow. It is equipped with a gearbox; two adjustable pumps and one unregulated.

An adjustable axial piston type hydraulic motor can be used as a travel motor. A hydraulic motor with a connecting rod oscillating unit of the cylinder block with a flow regulator allows obtaining proportional dependences of volume on pressure.

The gear hydraulic pump is driven by the diesel engine on which it is mounted. The direction of rotation of the input shaft of the pump: left - with the engine MMZ D-245.

The excavator is equipped with a ten-spool valve. It consists of a common plate, on which 10 sections are located. Of these: two central sections - pressure-drain and eight sections - working.

The hydraulic cylinders that the EK-18 excavator is equipped with are different in their design, in nominal and maximum allowable working pressure, in rod and piston diameters, and in piston stroke. But all hydraulic cylinders consist of such parts: a welded body, a rod, a front cover, seals. The working fluid is supplied through pipelines that are connected to the cylinder body with flanged or threaded connections. The piston divides the interior of the cylinder into two cavities that do not communicate with each other: piston and rod.

All modifications of the EK-18 excavator are equipped with a hydraulic power steering.

Electrical equipment EK-18 is responsible for starting the engine, lighting working area if necessary, ventilation of the cabin, switching on the light signaling when the special vehicle is moving, and for the pre-start heating of the diesel engine. In addition to the starter, consumers of electricity on this equipment are control and measuring, lighting and light-signal equipment, fan electric motors, and a motor heater. All current sources and consumers are connected according to a single-wire circuit, in which the metal structure ("mass") of the special vehicle serves as a negative wire.

Excavators EK-18 are produced with indices -20, -30, -40, -44, -60 and -90 (M). The differences between them are in buckets of various sizes, different load capacities; in various hydraulics and diesel engines.

The EK-18 excavator is equipped with an all-metal noise and thermally protected cabin. Upper windshield with the frame can be removed under the cab roof and fixed in this position. The door is equipped with a lock. A latch is provided on the left outer wall of the cabin to hold the door in the open position. On the floor there is a special anti-vibration mat. The cab has a sprung seat, the backrest tilt of which can be changed. The position of the chair itself is adjustable in depth and height. The hood of the excavator is made of removable blocks that have hinged doors and panels for easy access to the units and mechanisms on the turntable, for maintenance and current repairs.

The EK-18 excavator is a wheeled earth-moving machine equipped with a bucket. This equipment is produced by the company RM - Tereks at the Tverskoy Excavator plant. The special equipment is designed for excavation, digging trenches, loosening rocks, loading, unloading bulk materials, for performing other works in industrial, urban, municipal, transport construction.

Scope of use

The line of excavators EK-18, the technical characteristics of which are constantly being improved, is in high demand among construction companies and government organizations. Such demand is justified by the fact that EK-230-06 excavators and related models combine versatility, performance and affordable cost. Today you can buy machines not only on wheels, but also on caterpillar tracks (LC) to work in difficult terrain.

Wheel excavator EK-18-30 can be used to perform the following works:

1. Arrangement of pits for high-rise buildings. The reach of the boom and the volume of the bucket allow you to tear holes of a large area and depth in a few hours. Excellent maneuverability makes it possible to quickly move both along the edge of the pit and inside it. Depending on the type of soil, one of the replaceable buckets is used.
2. Laying trenches of various widths and depths. The use of removable sections of the boom and buckets with a certain width helps to make even trenches with a width of 30 cm and a depth of up to 600 cm. fuel lines, power and telecommunication cables. Precise boom control facilitates high-level repair work.
3. Quarrying. The EK 12 excavators are technically high enough to remove tough overburden, hard rock and frozen ground. The large bucket capacity allows you to fill the truck body with sand, gravel or limestone in a matter of minutes.
4. Construction and repair of hydraulic structures. Excavators EK-18-20 have proven themselves in the construction of bridges, dams and dams. Having good cross-country ability and maneuverability, EK-18-60 excavators are used at all stages of construction, from excavation to leveling.
5. Communal works. Within the city limits, EK-14 - a wheeled excavator - is an indispensable technique. With its help, the repair of sewerage, heating mains and water supply is carried out. Maneuverable equipment quickly and efficiently digs holes for sewer and communication wells.

See also: earthmoving excavators

Excavators EK-8-20 2005 are in demand among owners of dachas and country houses. Multifunctional equipment is ideal for the construction of underground structures, the creation of embankments, the laying of communications, the construction of foundation pits.

Advantages

Models 14 and 16, the EK excavator, are developed on the basis of equipment that has passed many years of testing in various climatic and weather conditions. The use of modern technologies has significantly improved the technical characteristics of the EK-270L excavators. Earthmoving units are different high reliability and long service life.

The technique has such positive features:

• Wide temperature range of use. The earth-moving machine can work at a temperature of -45…+45 ºС. This ensures high demand (including for the EK-400 excavator) throughout Russia, in the near and far abroad.
• Limited platform turning radius. This solution makes it possible to work in a limited space without the risk of damage to the boom and surrounding objects.
• Increased reliability and durability of the chassis. All knots and mechanisms are made of high-quality steel. Welded seams are made using the supply of inert gases, which gives them solidity and resistance to corrosion.
• Convenient management of working bodies. The EK-270 excavator is equipped with a spacious cab with panoramic windows. The cabin is completed with an ergonomic chair with several settings. The description of the controls contains precise instructions on how to use them. Pressing the levers and buttons does not require much effort.
• Increased load capacity. The boom is equipped with two cylinders. This allows you to work with massive loads lifted in one go. The productivity of technology is changing for the better.
• Simplicity of design and reliability. All units of the earth-moving machine are designed for maximum load for a long time. If individual parts fail, repairs are carried out quickly, without sending equipment to service center.
• High speed performance. The Kranex EK-270 wheeled excavator can cover long distances by moving under its own power. This allows you to save on transport services by refusing to transport on a trailer or railway platform.

See also: single bucket wheel excavator EO-3322

The parameters of the boom make it possible to attach various modifications to it auxiliary equipment. At low cost, earthmoving equipment replaces several machines with a narrow specialization.

Optional equipment

Caterpillar and wheeled units manufactured by the Tver excavator plant are adapted to work with attachments of domestic and foreign production. In most cases, their installation is carried out by one operator.

The functionality of the excavator is expanded by installing the following devices:

• Various bucket modifications. Are applied to work with bulk material of a certain density and hardness. Narrow buckets are used for trenching and rock removal. Wide buckets are used to remove overburden, earth and limestone. The width of the buckets varies between 30-80 cm, and the volume is 0.4-0.85 m³. Buckets provide for the installation of crowns, which significantly increase the resource of the tool.
• Ripper. Made from high strength hardened steel. Designed for the destruction of asphalt and concrete pavement, curbs and thin walls. When working with soil, it opens the frozen layer, loosens the compacted surface for subsequent excavation with a bucket.
• Drilling rig. Allows you to make holes with a diameter of up to 30 cm and a depth of up to 20 m. It is used for drilling wells for water, making holes for poles and supports. In the subsidiary farm, with the help of a drill, pits are made for seedlings and supports for the fence.
• Arrow handles. Used to increase digging depth and lifting height. Available with buckets or separately. The length of interchangeable handles varies between 220-340 cm.
• Grab. It is used for carrying out loading and earthworks. Creates depressions in soft soil, captures bulk material (hay, branches, tops).
• Magnetic puck. It is used to collect small and large fragments of scrap metal up to 200 cm in size and weighing up to 50 kg.
• Hydraulic hammer. It is a more powerful analogue of a jackhammer. It is used in the dismantling of roads, residential buildings and engineering structures. When laying communication lines, it is used to crush rocks and stones. When installing the plate, it is used to compact the soil.
• Mulcher. It is capable of chipping branches up to 10 cm thick into chips. It destroys wood from the roadside in a strip up to 6 m wide. If necessary, it is used in the process of laying and cleaning glades. In the private sector, he grinds cut down trees without entering the yard.

Read also: Everything you need to know about driving an excavator for beginners

To transport the entire set of auxiliary equipment, a truck body or a two-axle trailer is sufficient.

Specifications

The manufacturer is constantly working to improve the performance of EK series excavators. Today, this technique is practically not inferior to foreign analogues, and in some respects surpasses them.

The general specifications of the wheeled earthmoving machine are as follows:

• length - 8200 mm;
• width - 2500 mm;
• height - 3140 mm;
• weight without refueling - 14200 kg;
• highway speed - 25 km / h;
• minimum turning radius - 850 cm;
• wheels - pneumatic, with tread 12.00-20;
• the maximum overcome rise - 32º;
• cruising range - 400 km.

Earthmoving Equipment Parameters:

• bucket capacity - 0.35-0.85 m³;
• maximum ejection of the stele - 960 cm;
• digging depth - 540 cm;
• bucket lifting height - 650 cm;
• load capacity - 1200 kg.

A full cycle, consisting of lowering the bucket, grabbing the material and unloading the soil, takes no more than 15 seconds, which is a very high indicator.

Specifications power plant:

• engine - diesel MMZ with water cooling;
• power at 2200 rpm - 124 hp;
• engine size - 4.5 l;
• fuel tank volume - 250 l;
• fuel consumption on the highway - 25-30 liters per 100 km;
• fuel consumption in excavator mode - 11-13 l / h.

The gearbox has 4 forward gears (including low gear) and 1 reverse gear. Front-wheel drive provides high passability of equipment when working in off-road conditions.

Thanks to optimal combination such indicators as price and quality, the equipment of the Tver excavator plant has practically no competitors. Wheeled and crawler excavators of the EK series are appreciated all over the world, as evidenced by their volume export deliveries.

Digging parameters of TVEKS EK 18 excavator

Handle, m	2,2	2,8	3,4
Digging radius, m	9,1	9,65	10,2
Digging radius at parking level, m	8,85	9,42	10,0
Kinematic digging depth, m	5,77	3,67	6,97
Unloading height, m	6,24	6,5	6,75
Bucket rotation angle (deg.)	177	177	177
Maximum bucket capacity (according to SAE), m 3	1,0	0,77	0,65

1	arm 2.2 m
2	arm 2.8 m
3	arm 3.4 m

• Digging grab
• hydraulic hammer
• hydraulic shears
• Ripper
• log grapple

• Hydroshear NG-1624
• Ripper 225-00-40.17.400

1	arm 2.2 m
2	arm 2.8 m
3	arm 3.4 m

Interchangeable types of working equipment of the TVEKS EK-18 excavator

• Digging grab
• Loading grab (five-jaw)
• hydraulic hammer
• hydraulic shears
• Ripper
• log grapple

Dismantling and destruction of brick, concrete and reinforced concrete structures of medium strength, including cutting of reinforcement, destruction of metal structures, cutting of scrap metal, charge. Loading and unloading bulk and non-bulk cargo from gondola cars.

Bucket with a volume of 1 m 3 can be replaced by:

• Replaceable handles L=2200 mm, 2800 mm, 3400 mm and with buckets respectively V=0.77 m 3 , 0.65 m 3 .
• Hydraulic hammer MG-300, designed for the destruction of concrete and reinforced concrete road surfaces, brick structures, non-reinforced concrete and other similar works, including loosening frozen soil and compacting loose soil.
• Hydroshear NG-1624
• Ripper 225-00-40.17.400
• Log grapple 313-00-40.12.000 with a lifting capacity of 3 tons for loading and unloading operations and stacking logs and other lumber. The log grapple can be equipped with a full-turn rotator.
• Digging grab and grab for bulk materials.

There is a version with two pairs of outriggers.

Perkins engines fully comply with all international environmental requirements and have a number of significant advantages:

• twice the resource and guarantee period maintenance compared to domestic engines;
• 10% more torque;
• ensuring fuel economy by 10-20% depending on the type of work;
• reduction of maintenance time by 20% due to the increase in intervals between maintenance;
• reduction of noise and vibrations at the operator's workplace.

Materials of OAO Tverskoy Excavator, http://www.tvexc.ru were used.

Photos TVEKS EK-18 wheeled excavator

Additional Information

Technical characteristics of wheel excavators Tveks EK-8, EK-12, EK-14, EK-18, EK-18-40 and autoexcavator Tveks 5846 (EA-17) manufactured by the Tverskoy Excavator plant are summarized in one table

In the line of the Tver plant, the EK-18 model is the flagship with the highest carrying capacity. The main features of the technique (reliability and durability) are due to the reinforced structure of the metal structure.

A cubic meter bucket and two boom-lifting cylinders allow the EK-18 to cope with the movement of heavy loads.

This technique is a pneumatic wheeled hydraulic excavator used for demolition and demolition of reinforced concrete, brick and concrete structures of medium strength. The model is also used for the destruction of metal structures, cutting metal scrap, cutting reinforcement and loading and unloading non-flowing and loose soils. The technique has also found application in performing various tasks of dismantling objects made of concrete and other structures made of similar materials.

EK-18 is designed to work with mounted grabs with different levels of functional orientation. The most popular are mobile modifications with a wheeled chassis, but there are also heavy versions on tracks.

The EK-18 is a truly versatile earthmoving machine. Through it, you can dig quarries, trenches and pits in soils belonging to categories I-IV, as well as load frozen soils and loosened rocks with a piece size of less than 200 mm.

Excavator modifications EK 18-20, 18-30, 18-40, 18-44, 18-60

Tver Excavator produces several modifications of this model:

• classic EK-18;
• EK-18-20 with increased productivity and a bucket with a volume of one cubic meter. Thanks to the additionally reinforced metal structure of the equipment, the equipment can work in difficult conditions. For EK-18-20, the manufacturer offers a huge selection of interchangeable working equipment. At the same time, the model itself is considered the most powerful multifunctional machine;
• EK-18-30 is an analogue of EK-18-20 with similar characteristics. The only difference is the presence of imported hydraulics;
• EK-18-40 is a hydraulic pneumatic wheeled excavator equipped with a clamshell grip. Special version designed for loading timber and scrap metal. It is additionally equipped with a hydraulic lifting cabin and scrap equipment;
• EK-18-44 is a special pneumatic-wheel modification with a 5-jaw grab GP-554 with a capacity of 0.65 cubic meters, a hydraulic lifting cabin, a full-turn rotator and scrap equipment. It is used for loading / unloading gondola cars and loading timber and scrap metal;
• EK-18-60 is equipped with Bosch-Rexroth travel motor, hydraulic pump and Perkins unit.
• The wheel excavator Tveks EK-18-90 (M) is an evolutionary continuation of the previous model. Redesigned working equipment, more powerful engine.

The main advantages of EK-18:

1. stability;
2. powerful motor;
3. forward cabin;
4. long service life and reliability;
5. high performance;
6. ease of management and ease of maintenance;
7. multifunctionality;
8. thoughtful arrangement of instruments and indicators on the control panel.

Specifications

The weight of the excavator is 18000 kg. Dimensions EK-18:

• length - 9400 mm;
• width - 2500 mm;
• height - 3250 mm;

Operating parameters of the model:

• bucket capacity - 0.65 (0.77; 1) cubic meters;
• unloading height - 6240-6750 mm;
• digging radius - 8850-10000 mm;
• digging depth - 5770-6970 mm;
• bucket rotation angle - 177 degrees;
• Max Speed movement of equipment is 20 km / h.

Fuel consumption

The fuel consumption of the EK-18 is 236 g/kWh. At the same time, the fuel tank of the model holds up to 255 liters.

Engine

EK-18 boasts a powerful 4-stroke 4-cylinder D-245 diesel unit with a liquid cooling system and direct fuel injection. The motor is started via an electric starter. The power plant is equipped with additional elements manufactured in Germany. Some modifications of the EK-18 are equipped with the British Perkins unit with increased power.

The D-245 engine has an in-line vertical arrangement of cylinders. The main assembly units of the power plant are crankshaft, cylinder block, flywheel, pistons, cylinder head and connecting rods. The use of a supercharged turbocharger with adjustable boost pressure provides improved throttle response and increased torque.

Engine parameters "D-245":

• working volume - 4.75 l;
• power - 105 hp;
• maximum torque - 385.5 Nm;
• rotation frequency - 2200 rpm;
• cylinder diameter - 110 mm.

Optional equipment

EK-18 can be equipped with additional systems and modules. For this model, Tverskoy Excavator offers:

• ripper 225-00-40.17.400, which allows you to remove various elements from the soil, carrying out global cleaning;
• hydrohammer MG-300. It is used for dismantling a variety of wooden, concrete and brick buildings and structures. Also, the hydraulic hammer is used to compact the loose earth layer and loosen the frozen soil;
• hydraulic shears IG-821 and IG-811. This element has additional equipment that provides the necessary rotation of the scissors, which allows you to significantly expand the list of operations performed;
• log grapple MG-300. It is used for unloading, loading, stacking logs and has a load capacity of 3000 kg. Additionally, it can be equipped with a full-turn rotator;
• grapple GK-221. It is used to perform operations for unloading and loading materials and excavation.

Price of new and used

The new EK-18 excavator will cost 4-4.5 million rubles. Used options are much more affordable. So, for the model of 2008-2009 in good condition will have to pay 1-1.8 million rubles. Cars until 2000 are offered for 400-500 thousand rubles. Renting an excavator costs about 8,000-10,000 rubles per shift.

Analogues

Analogs of EK-18 are models EO-33211 and EO-4321.

In the line of the same name of the Tver plant, the Tveks EK 18 wheeled excavator is the most powerful unit, characterized by excellent load capacity. The reinforced structure of the metal structure of the working equipment determines the main advantages of the equipment - durability and reliability.

Two boom-lifting cylinders and a cubic meter bucket allow it to easily cope with the movement of goods. The developers did not bypass their attention and the operator's cabin. In addition to ergonomics, it is characterized by an excellent overview of the area of ​​excavation and other types of work.

Tveks EK 18 are equipped with the most powerful D-245 engine, the power of which is 105 horsepower. It is equipped with a pre-heater, which the manufacturer receives directly from Germany. It is possible to equip equipment on an individual order diesel engine Perkins (Great Britain), as well as imported hydraulics.

Thanks to the possibility of using handles of three options - 3.4, 2.8 and 2.2 meters - it is possible to install buckets with a volume of 1, 0.77 and 0.65 cubic meters. m., respectively.

In relation to the "price-quality" indicator, the model under consideration has no domestic analogues on the market. Only a few foreign manufacturers can offer more or less similar solutions.

It is possible to equip the excavator with interchangeable (additional) equipment:

• hydraulic hammer - destroys road surfaces made of reinforced concrete, concrete (including unreinforced) and brick, loosens the soil (including frozen), rams loose earth;
• ripper - opens frozen soil and asphalt concrete pavement, is used to excavate curbstones;
• grab - necessary for digging and loading and unloading. Can be completed with hydraulic type full swing rotator and extension;
• log grapple with a lifting capacity of 3 tons - stacks logs, participates in the implementation of the PRR;
• hydraulic shears - used in the process of concrete breaking operations. Equipped with a rotator.

Application

The TVEKS 18 excavator easily copes with soils of any category, which allows the equipment to be used everywhere. The main work for which EK-18 is used:

• territory planning;
• loading and unloading operations with pallet cargo;
• demolition of construction sites;
• career work;
• production of excavations - pits, trenches;
• other types of construction and agricultural work.

Modifications

There are several modifications of technology, the main hallmarks each model is hydraulic system and motor. The latter can be installed foreign or Russian production. The foreign unit is characterized by higher power, economy and long periods between maintenance.

Model	EC-18-20	EK-18-30	EK-18-60	EK-18-90
Engine	MMZ 245C		Perkins 1104C-44TA	D-245 2S2
engine's type	Diesel, liquid cooling
Engine power, h.p.	105		123	122
Hydraulics	PSM	Bosch Rexroth
Handle, m	2,2/,2,8/3,4
Bucket capacity, cu. m	1,0/0,7/0,65
Digging depth	5,77/6,37/6,97
Unloading height, m	6,24/6,5/6,75
Cycle duration, s	18,5
Travel speed, km/h	20
Overall dimensions, mm	9360/2500/3158
Equipment weight, t	18,4

EK-18 modifications:

• standard model EK-18;
• TVEKS EK-18-20 is characterized by increased efficiency; a standard working body (ladle) with a capacity of 1 cubic meter is installed on it. m. All components of equipment are produced in Russia. The main frame has a reinforced structure, which guarantees high performance when working in difficult conditions. TVEKS 18-20 can be equipped with a large number of additional working bodies. This modification considered the most powerful and multifunctional;
• EK-18-30 is the previous model with an advanced foreign-made hydraulic system;
• EK-18-40 as standard has clamshell grip as a working body. This special equipment is most often used in logging and scrap metal processing enterprises. Optionally, this model can be equipped with a lifting cabin (using hydraulics) and a scrap body;

• EK-18-44 is an improved version of the previous model. Here, a hydraulic lifting cabin, a scrap body, a five-jaw grab with a capacity of 0.65 m3, a full-turn rotator are installed as standard. Its main purpose is the loading and unloading of gondola cars, as well as the work for which the EK-18-40 modification is intended;
• TVEKS EK-18-60 is equipped with a hydraulic propulsion motor jointly produced by Bosch and Rexroth, a hydraulic pump, and a power plant manufactured by Perkins;
• EK-18-90M is the latest development of the manufacturer, in which axles with limited slip differentials are installed, due to which the ability to overcome difficult sections is improved. The steering wheel made in Italy is smaller, which creates more comfortable working conditions for the operator. In addition, the cabin has increased rigidity. The power plant is characterized by increased power indicators, which favorably affects the efficiency of equipment. Optionally, handles of various sizes are installed, 2.2 m is used as standard. An increase in its length contributes to deeper digging, but the capacity of the working body is reduced.

Specifications and dimensions

To increase the carrying capacity of TVEKS 18, it is planned to install two boom-lifting hydraulic cylinders and a bucket with a volume of 1 cubic meter. m.

The main technical characteristics of TVEKS EK-18 include:

• weight - 18 tons;
• capacity of the working body of a standard assembly - 0.65 m3, 0.77 m3, 1 m3;
• unloading height - from 6.24 m to 6.75 m;
• digging radius - from 8.85 m to 10 m;
• digging depth - from 5.77 m to 6.97 m;
• angle of rotation of the working body - 177 degrees.

The characteristics of heavy construction equipment depend on the modification. The machine demonstrates high performance at ambient temperatures from -40 to +40 degrees. Thus, it can work not only in Russia, but also in other countries.

Dimensions EK-18: 9.4 m x 2.5 m x 3.25 m (5.25 m with cab raised). Depending on the modification, the dimensions of the equipment may deviate from those indicated by 0.1 - 0.2 m.

Engine

The high characteristics of TVEKS 18 are due to the installation powerful engine D-245 with a volume of 4.75 liters. This is a four-stroke four-cylinder power plant with a capacity of 77 kW or 107 horsepower. It is equipped with water cooling system and direct feed system. combustible mixture. The rotational speed is 2200 revolutions per minute of operation. Diesel fuel is used, the unit is started by means of an electric starter. Auxiliary elements of the engine are made in Germany. Modifications can be equipped with a Perkins engine, model 1104C-44TA with a capacity of 123 horsepower.

cylinders domestic engine with a diameter of 110 mm are arranged in a row, vertically. The main components of the motor are connecting rods, pistons, cylinder block, cylinder head, flywheel, crankshaft. All of them are serviced. To improve the performance of the power plant, a turbocharger is used, due to which an increase in torque to a maximum value (386 Nm) and throttle response is provided. The blowing force is controlled by the operator.

To start the engine in cold weather, a pre-start heater made in Germany "Hydronic 10" is provided.

Fuel consumption EK-18 is 236 g / kW per hour of operation, the capacity for diesel fuel holds 255 liters.

PRICE FOR SHIFT 10 000 RUB.

Specifications: Digging parameters:

• Weight, t 14
• Bucket capacity (according to SAE), m3 0.8 (0.4; 0.5; 0.65)
• Length, mm 8200
• Width, mm 2500
• Height, mm 3140
• D-245 engine
• Engine power, l. With. 105
• Cycle duration, s 16
• Pressure in the hydraulic system, MPa 28
• Travel speed, km/h 25 (20)

• Handle, m 1.9
• Digging radius, m 8.2
• Digging radius at the parking level, m 7.92
• Kinematic digging depth, m 4.89
• Unloading height, m ​​5.72
• Bucket rotation angle (deg.) 173
• Maximum bucket capacity 0.8

The EK-18 hydraulic wheeled excavator is rightfully called the flagship among similar special equipment. It is characterized by high load capacity and reliability in operation. Its design has a solid reinforced base, which allows the use of representatives of this model to work on the analysis of buildings and other objects.

Excavator EK 18-20

The multifunctional excavator EK 18-20 is focused on performing diverse functions. The main one is earthmoving. With it, you can dig:

• foundation pit;
• trenches for laying communications;
• quarries.

The durable material from which the attachment is made is suitable for digging frozen soils. Also, this excavator can be used for loading loosened rock, if the size of one piece does not exceed 20 centimeters.

This model is considered the most powerful of the entire family and is recommended for working with heavy loads, destroying reinforced concrete structures and brick walls, cutting reinforcement and unloading bulk materials.

Excavator EK 18-20, prices

The advantages of the EK 18-20 excavator, the prices of which we offer to find out by phone from our managers, include the duration of operation and reliability. It is stable on any soil, has a powerful motor and shows high performance results. It is not only easy to operate, but also easy to maintain. Its cab provides the operator with a wide view of the terrain. Its arrangement is unique in that the manufacturer has focused on the safety and comfort of operating equipment.

Single bucket excavator EK-18

The main orientation of the machine is aimed at working with mounted grabs. Special equipment is universal machine, which has a wide range of applications. The car has a well-equipped cab. The engineers developing this technique paid great attention to control, which resulted in the maneuverability of the excavator. The layout of the cab itself has been revised, resulting in a significantly increased maximum visibility for the operator. A large number of additional interchangeable attachments are provided. That made it possible to make the EK-18 excavator a fairly competitive machine in relation to advanced foreign analogues.

Design features

A special steel cab is installed on the excavator, which has a power frame made of a tubular profile. It is glazed on four sides and on top. The upper part of the front window can be moved under the roof, and the lower part is removed using a lever mechanism. There is an overhead hatch on the roof. A heater is installed inside, a narrow steering column is adjustable in tilt angle. The seat is equipped with a mechanical suspension, it is possible to adjust the armrests and headrest. There is a compartment for the driver's personal belongings, a place for a drinking water tank, a first-aid kit and a fire extinguisher. The cab itself is mounted on hydraulic vibration-isolating supports.

To monitor the operating parameters of the machine, there is dashboard on which the hour meter is installed, the hydraulic oil temperature indicator, the voltage indicator of the on-board network.

The Tveks EK-18 excavator has a pneumatic wheel undercarriage, the features of which are expressed by steel wheel wings with an anti-slip surface, there are footboards on the right and left sides, a steel basket for canisters is provided on the left footboard, a tool box on the right footboard, the blade descends in parallel forward, behind outriggers are provided.

The hydraulic system is used for smooth operation of the machine, provides high productivity. At the request of the customer, instead of the standard equipment, Bosch-Rexrot hydraulic equipment can be installed on the equipment, which includes a hydraulic distributor, pump unit, hydraulic motors, control units.

The turntable is represented by an independent liquid engine preheater, anti-slip pads at access points, handrails located on the right side of the platform itself, and a fuel water separator filter.

Specifications

This technique is presented in various modifications, so the EK-18 excavator has different technical characteristics, but they do not differ much from each other. The main difference between the produced models is installed engine and hydraulic system, which can be domestic or foreign.

On the model EK-18, EK 18-20, EK 18-30, a diesel four-stroke four-cylinder engine D-245 is installed, having fluid system cooling. With the help of an electric starter, the motor is started. This engine has a vertical in-line arrangement of cylinders. The increased torque is achieved through the use of a supercharged turbocharger.

On the model EK 18-60, EK 18-47, the English engine Perkins 1104C-44TA, manufactured by the company of the same name, is installed. It is a horizontal four-cylinder diesel engine, turbocharged. It is distinguished by a cast cylinder block, the presence of a cast-iron exhaust manifold, reduced emissions of harmful substances into the atmosphere, and reduced fuel consumption.

• work in quarries;
• level the ground;

Optional equipment

On the model EK 18-60, EK 18-47, the English engine Perkins 1104C-44TA, manufactured by the company of the same name, is installed. This is a horizontal four-cylinder diesel engine, turbocharged. It is distinguished by a cast cylinder block, the presence of a cast-iron exhaust manifold, reduced emissions of harmful substances into the atmosphere, and reduced fuel consumption.

The mass of the base model is 18 tons, the fuel consumption of the EK-18 is 236 g / kW per hour, the length is 9.4 meters, its width is 2.5 meters, and its height is 3.25 meters, the capacity of a standard bucket is 0.65 meters cube The maximum unloading height reaches 6.75 meters.

Scope of use of the Tveks excavator

Universal equipment has a wide scope, which affects the increased interest in it from buyers who want to buy a Tveks EK-18 excavator to solve certain problems. With the help of special equipment, you can perform:

• work in quarries;
• level the ground;
• development of soil of all four categories;
• destroy buildings of medium strength;
• loading and unloading of various materials;
• loading and unloading, stacking of various lumber, logs;
• performance of other works in municipal, forestry, agriculture, is used at industrial enterprises, in construction.

Optional equipment

For this special equipment, Tverskoy Excavator offers additional equipment, the purchase of which from Tveks EK-18 will increase the price, and also expand its scope. Attached equipment is represented by the following types:

1. Hydrohammer MG-300. Used for dismantling concrete, brick, wooden structures and buildings. It can also be used for loosening the frozen earth layer, compacting loose soil.
2. Log grab MG-300. It has a load capacity of up to 3 tons, is designed for various loading and unloading operations with logs, their stacking. Also, at the request of the customer, the manufacturer can understaff with a full-turn rotor.
3. Ripper 225. Designed to remove various elements from the soil by carrying out a complete cleaning.
4. Grab GK-221. It is in demand when carrying out work on loading materials and their unloading, and is also used for excavation.
5. Hydroshear NG-1624. Thanks to additional equipment, the rotation of the scissors is ensured, which significantly expands the operations performed.
6. Loading grab (five-jaw).

Excavator performance

Designers are constantly improving the workflow of this machine, pursuing the main goal - increasing its productivity. This is expressed in off-road and good maneuverability of the machine, which were achieved through the use of limited slip differentials used in the design of the running axle. Bucket capacity, hydraulic transmission, powerful engine, the use of additional equipment provide this equipment with the highest performance and increase its productivity.

The EK-18 earth-moving machine, manufactured by RM-Terex, is a universal technique that has a wide range of applications, is distinguished by the quality of production of all units and assemblies, good technical characteristics, and the ability to compete with any modern analogues of both domestic and foreign production, respectively. .

Big brother from the Tveks EK family and just a good hard worker. Consider what it is and how it differs from the smaller brothers.

Among the products of the Tver plant, the TVEKS EK-18 excavator has the highest power ratings. Such advantages as long service life and reliability of equipment are due to the use of a reinforced metal structure of the bearing part.

Consumers also note the high technical characteristics of the machine; in Russia, the EK-18 is one of the most popular models of domestic production. The manufacturing company JSC "Tverskoy Excavator" manufactures a large number of construction special equipment. The hydraulic special vehicle is equipped with a pneumatic wheel drive. The excavator is positioned as a versatile, productive, unpretentious, easy-to-maintain equipment for performing earthmoving tasks. Its profitability is due to the availability and low cost of parts, low fuel consumption.

The TVEKS 18 excavator easily copes with soils of any category, which allows the equipment to be used everywhere. The main work for which EK-18 is used:

• territory planning;
• loading and unloading operations with pallet cargo;
• demolition of construction sites;
• career work;
• production of excavations - pits, trenches;
• other types of construction and agricultural work.

Produced in Russia, the TVEKS EK-18 excavator is unpretentious in terms of operating conditions. It has high performance at high and low temperatures, high humidity, etc. Thanks to such qualities as efficiency, reliability, maintainability and versatility, the excavator has become an indispensable assistant on construction sites and in quarries.

Modifications

There are several modifications of equipment, the main distinguishing features of each model are the hydraulic system and motor. The latter can be installed foreign or Russian production. The foreign unit is characterized by higher power, economy and long periods between maintenance.

EK-18 modifications:

• standard model EK-18;
• TVEKS EK-18-20 is characterized by increased efficiency; a standard working body (ladle) with a capacity of 1 cubic meter is installed on it. m. All components of equipment are produced in Russia. The main frame has a reinforced structure, which guarantees high performance when working in difficult conditions. TVEKS 18-20 can be equipped with a large number of additional working bodies. This modification is considered the most powerful and multifunctional;
• EK-18-30 is the previous model with an advanced foreign-made hydraulic system;
• EK-18-40 has a clamshell grip as a working body as standard. This special equipment is most often used in logging and scrap metal processing enterprises. Optionally, this model can be equipped with a lifting cabin (using hydraulics) and a scrap body;
• EK-18-44 is an improved version of the previous model. Here, a hydraulic lifting cabin, a scrap body, a five-jaw grab with a capacity of 0.65 m3, a full-turn rotator are installed as standard. Its main purpose is the loading and unloading of gondola cars, as well as the work for which the EK-18-40 modification is intended;
• TVEKS EK-18-60 is equipped with a hydraulic propulsion motor jointly produced by Bosch and Rexroth, a hydraulic pump, and a power plant manufactured by Perkins;
• EK-18-90M is the latest development of the manufacturer, in which axles with limited slip differentials are installed, due to which the ability to overcome difficult sections is improved. The steering wheel made in Italy is smaller, which creates more comfortable working conditions for the operator. In addition, the cabin has increased rigidity. The power plant is characterized by increased power indicators, which favorably affects the efficiency of equipment. Optionally, handles of various sizes are installed, 2.2 m is used as standard. An increase in its length contributes to deeper digging, but the capacity of the working body is reduced.

Specifications

To increase the carrying capacity of TVEKS 18, it is planned to install two boom-lifting hydraulic cylinders and a bucket with a volume of 1 cubic meter. m.

The main technical characteristics of TVEKS EK-18 include:

• weight - 18 tons;
• capacity of the working body of a standard assembly - 0.65 m3, 0.77 m3, 1 m3;
• unloading height - from 6.24 m to 6.75 m;
• digging radius - from 8.85 m to 10 m;
• digging depth - from 5.77 m to 6.97 m;
• angle of rotation of the working body - 177 degrees.

The characteristics of heavy construction equipment depend on the modification. The machine demonstrates high performance at ambient temperatures from -40 to +40 degrees. Thus, the excavator can work not only in Russia, but also in other countries.

Engine

The high performance of TVEKS 18 is due to the installation of a powerful D-245 engine with a volume of 4.75 liters. This is a four-stroke four-cylinder power plant with a capacity of 77 kW or 107 horsepower. It is equipped with a water cooling system and a direct fuel mixture supply system. The rotational speed is 2200 revolutions per minute of operation. Diesel fuel is used, the unit is started by means of an electric starter. Auxiliary elements of the engine are made in Germany. Modifications can be equipped with a Perkins engine, model 1104C-44TA with a capacity of 123 horsepower.

The cylinders of the domestic engine with a diameter of 110 mm are arranged in a row, vertically. The main components of the motor are connecting rods, pistons, cylinder block, cylinder head, flywheel, crankshaft. All of them are serviced. To improve the performance of the power plant, a turbocharger is used, due to which an increase in torque to a maximum value (386 Nm) and throttle response is provided. The blowing force is controlled by the operator.

To start the engine in cold weather, a pre-start heater made in Germany "Hydronic 10" is provided.

Fuel consumption

It is 236 g / kW per hour of operation, the diesel fuel tank holds 255 liters.

Transmission

Gearbox
1 - flange; 2 - shaft-half-coupling; 3, 16 - cuffs; 4, 8, 11, 18,20,23,25 - bearings; 5 – hydraulic motor; 6, 28 - housing; 7, 9, 19.24, 26 - gears; 10 - pinion shaft; 12, 17.29 - covers; 13 – brake pulley; 14 - brake shoe; 15 - finger; 21.27 - coupling halves; 22 - shaft.

The gearbox (gearbox) EK-18 is used to transmit torque from the hydraulic motor to the drive axles; to shift gears, turn on / off the front axle and prevent spontaneous start of the excavator movement (activation of the parking brake). The gearbox consists of a hydraulic motor, a 2-speed gear, a gear shift mechanism, and a parking brake. Shoe-type pneumatic brakes are mounted in the bridges of the excavator.

electrical equipment

The EK-18 electrical equipment is responsible for starting the engine, lighting the working area if necessary, ventilating the cab, turning on the light signaling when the special vehicle is moving, and for pre-heating the diesel engine. In addition to the starter, consumers of electricity on this equipment are control and measuring, lighting and light-signal equipment, fan electric motors, and a motor heater. All current sources and consumers are connected according to a single-wire circuit, in which the metal structure ("mass") of the special vehicle serves as a negative wire.

Chassis

Chassis represented by a wheeled chassis. The excavator is equipped with a hydrostatic gearbox manufactured by the German company ZF, which is characterized by high reliability, long service life and efficiency under any working conditions. This transmission, when working together with the engine, allows the vehicle to move at speeds up to 20 km / h.

The movement of the TVEKS 18 excavator on the working site is carried out autonomously. To transport equipment to the work site, it is necessary to use a tug, while the maximum speed reaches 40 km/h.

The standard assembly includes a blade support and two outriggers that provide stability to the machine.

Hydraulic system

The consumer has the opportunity to buy TVEKS EK-18 with various hydraulic systems, depending on the modification of the machine. The system produced by the Russian company Pnevmostroymashina is installed as standard. It is characterized by a power of 50 kW or 70 horsepower. The maximum pressure in the system is 28 MPa, and the pump that creates it pumps 248 liters of hydraulic fluid per minute of operation. The tank designed for hydraulic fluid holds 350 liters.

Modifications are equipped with a Bosch and Rexroth co-production system.

Device

The main advantages of the TVEKS EK-18 excavator include:

• ease of management and production of service work;
• reliability, durability;
• versatility and multifunctionality due to the installation of additional working bodies;
• productivity;
• installation of a high power power unit;
• installation of a comfortable seat for the operator;
• stability;
• installation of an ergonomic operator's cabin with a large viewing angle, protective barriers against dust and increased level security.

dimensions

Dimensions EK-18: 9.4 m x 2.5 m x 3.25 m (5.25 m with cab raised). Depending on the modification, the dimensions of the equipment may deviate from those indicated by 0.1 - 0.2 m.

Cabin

The advantages of the excavator cab include increased safety and ease of use. Control of the TVEKS EK-18 excavator is now even easier, and all the operator's attention is focused not on the controls, but on the workflow.

The cabin itself was designed by a Russian manufacturing company. It has a large glazing area, excellent vibration isolation, and a heating system is included as standard. Optionally, you can install an air conditioning system, wheel reduced size with the ability to adjust, a driver's seat with customization, a joystick control system.

The position of the operator's cab relative to the chassis has changed somewhat. The entire work area is now in view. This innovation allowed the EK-18 to become a competitor to foreign equipment of world brands. At the same time, the quality / price ratio of the domestic model is several times higher than that of foreign special equipment.

The dashboard includes controllers and controls, the location of which is carefully thought out. The cab of the TVEKS EK-18 excavator has several compartments for things - tools, first aid kits, personal items, etc.

Attachment

The equipment is multifunctional and universal due to the possibility of installing various attachments. The standard package includes a bucket with a capacity of 0.65 m3 to 1 m3, depending on the modification and arm length. TVEKS EK-18 goes on sale complete with working bodies:

• grabs - loading (5-jaw) for bulk cargo, digging;
• the ripper is used in the development of rocky and frozen soils;
• a hydraulic hammer is necessary for the demolition of concrete and reinforced concrete building objects or their parts, for the development of frozen soils;
• log grab with the ability to handle loads weighing up to 3 tons. Guarantees high efficiency in the production of loading and unloading operations and storage of pallet materials. In addition, a full-turn rotator can be installed;
• hydraulic shears are used for cutting metal products and crushing hard materials.

Advantages and disadvantages

Acquisition of EK 18 TVEX is a smart and long-term investment. Special equipment with increased technical and good running capabilities, simple and understandable control, unpretentious in operation and maintenance. With affordable and reasonable prices for spare parts and a large number of technical support centers in almost every city. According to the results of the survey - payback in the shortest possible time.
Only one can be attributed to the disadvantages: the wheel formula of the machine is not designed to work in conditions of weakly bearing soils.

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Reliability

Convenience and comfort

maintainability

Russian manufacturers have created an even more powerful machine with a reinforced metal structure of the bearing part. Thanks to special factory-fitted hydraulic mounts, the machine is even more stable than previous models. The EK 18 excavator on wheels, unlike tracked vehicles, has good maneuverability. Due to the increase in the support area, it can work on any landscape areas, even and with large slopes.
Multifunctional earthmoving machine intended both for agricultural work and for almost any construction site of various sizes. Development of pits and digging of wells, leveling and excavation of soils of categories I - IV, melioration, loading, unloading of materials, planning of territories and demolition of old structures made of reinforced concrete, brick, loosening of rocks. The model is compact, does not scratch paved areas, tiles, easily passes through narrow streets between buildings, therefore it has been evaluated and put into operation by a number of road utilities in different cities.

A single-bucket unit with a turntable, reduced in radius up to 2000 mm, on pneumatic wheels running from a standard compressor, equipped with a hydrostatic transmission and a pneumatic brake system.

• Speed ​​- 20 km / h (sufficient for heavy equipment);
• Operating weight - 18,000 kg;
• Angle of rotation - 177 degrees;
• Bucket capacity - 1 cu. meter;
• Digging depth - 5770 mm;
• Unloading height - 6240 mm;
• Radius - 9100 mm;
• Handle - 2200 mm.

When installing arrows of other sizes, for example, 2800 or 3400 mm, the parameters of work (digging) also change, respectively: radius 9420 and 1020 mm; depth 6370 and 6970 mm; unloading height 6500 and 6750 mm.

Engine Specifications

Engine type - D 245, diesel, liquid cooling. Fuel tank up to 255 liters; fuel consumption - 236 sq. at one o'clock. Power, at certain crankshaft speeds, reaches 105 horsepower. On models where Perkins is installed, 123 horsepower. Part of the equipment was additionally equipped with Hydronic 10 and a starting heater, which will facilitate starting at high sub-zero temperatures. Fixing the operating time will help to properly plan the necessary maintenance. With good maintenance and right choice lubricants will extend the service life, guarantee the uninterrupted operation of the unit.

Dimensions and cab

Machine length - 9400 mm, height - 3300 mm, width - 2500 mm. Chassis - 4700 mm, track width 1800 mm for internal and 2100 mm. for the outside of the wheels.

Safe, single cabin, with a large glass area for a circular view of the working area. Equipped with a Zenith heater with an air flow distribution system, which eliminates freezing and fogging of windows at any time of the year. With a comfortable driver's seat and additional compartments for storing personal and essential items, tools, to eliminate small breakdowns. Convenient location of instruments and sensors on the control panel, the interior is made of plastic, insulated door. Additionally, with the help of hydraulics, the cab can be raised to the required height.

Modification and equipment of similar equipment

Domestic components in cooperation with important components from a foreign manufacturer - the perfect combination of quality and price:

1. V basic configuration the EK 18 20 excavator is presented on the market. A model with a power of 77 kW, with German-made hydraulic equipment and Russian motor MMZ 245, manufactured at the Minsk Tractor Plant.
2. As a refinement of the previous model with imported mechanisms and a hydraulic system - EC 18 30.
3. Additional scrap equipment, hydraulic lifting cabin and EK 18 40 appeared on sale.
4. EK 18 44 is equipped with a clamshell five-jaw grip model GP-554.
5. Special equipment with a power of 90 kW, a Perkins 1104C-44TA engine and Bosch-Rexroth equipment, was given the name EK 18 60.

The EO-3323 and MSU-140 models can also be called similar.

Replacement equipment

The working equipment is standardly equipped with an earth-moving bucket with a maximum load of up to 1 cubic meter. At the request of the customer, it can be replaced with a larger bucket and equipped with a hydraulic front blade. Boom or monobloc, or with variable geometry. It is also possible to use a variety of replaceable (mounted) equipment for dismantling, destruction, cutting. Of which 90% is produced by the company itself, which additionally allows you to control the quality, compatibility and prices:

• hydraulic hammer- destruction of buildings, crushing of household stones and frozen soil;
• hydraulic shears- with a full-rotation rotor for cutting concrete structures, cables and wires;
• log grapple(carrying capacity up to 3000 kg.) - hauling wood in cutting areas, stacking logs, other lumber and scrap metal (can also be equipped with a full-turn rotor);
• Single Tooth Hydraulic Ripper– excavation, dismantling, opening of the asphalt concrete crust;
• Digging and loading grapple– movement of loose materials of different consistency.

Average cost of construction equipment

Approximate prices for a new bulldozer are from three to four million rubles, in each region the cost will vary.
Today there are a lot of advertisements for the sale of used construction equipment, someone needed a car for a year or two, different brands, equipment and release dates. In some cases, it makes sense to pay attention not to a new one, but to an already used one. As an example:
Chelyabinsk, 2012 issue. - 3,000,000 rubles;
Novosibirsk, 2009 issue. - 1,460,000 rubles;
Stavropol, 2007 issue. - 1,250,000 rubles;
Tomsk, 2005 issue. - 670,000 rubles;
Irkutsk, 2002 issue. - 300,000 rubles.
The spread of prices is rather big, from three million to three hundred thousand rubles, there is an explanation for this. Even if the documents are in order, the equipment is working properly and passed maintenance on time, first of all, the cost will depend on: year of manufacture, operating time, operating conditions, number and scale of breakdowns, appearance. Place of use and sale (territorially) plus price policy shop.

Pneumatic hydraulic excavators TVEX EK-18, produced at the Tver plant, is one of the most popular and most powerful models in the manufacturer's line

Specifications Tveks EK-18, weight

The maximum speed that this model is capable of developing is 20 km / h.

The standard digging depth of Tveks EK-18 is 5.7 meters, the digging radius at the parking level is 8.85 meters, and the unloading height is 6.2 meters. Depending on the size of the handle that was chosen, certain indicators of excavation work, different from the standard ones, are changed and set.

All specified sizes of handles (2.2, 2.8 and 3.4 meters), which the EK-18 excavator can be equipped with, make it possible to use buckets of various sizes: 0.65, 0.77 and 1 cu. meters, respectively.

Engine Tveks EK-18

The Tveks EK-18 excavator is equipped with a D-245 power unit. At the request of the customer, this machine can be equipped with an imported Perkins engine (with increased power) with a hydraulic pump and a Bosh-Rexort travel motor.

Photo source: avtex.su

The D-245 engine is:

• four stroke
• four-cylinder (diameter of each - 110 mm)
• diesel power unit.

Has a liquid cooling system direct injection fuel, fuel preheater, which allows you to start the car without problems at air temperatures down to -40 ° C. In general, the temperature range at which TVEX EK-18 can be operated is quite wide: from minus 40 to plus 40 degrees Celsius.

Fuel tank Tveks EK-18 can hold up to 255 liters diesel fuel.

Maintenance

The reinforced metal structure of the working equipment made the EK-18 excavators even more reliable, increasing their service life. WITH maintenance and repair problems do not arise, since all spare parts are available in the warehouse of the manufacturer and from official representatives.

Dimensions

Management, cab Tveks EK-18

this model The excavator is distinguished by a more spacious and convenient cabin in terms of the location of the controls. In it, specialists from the Tver plant increased visibility. The cabin is resistant to dust ingress.

Photo source: avtex.su

Attachment

Apart from large selection digging buckets for EK-18 excavators are provided with several types of additional attachments.

So, the car can be equipped with:

• hydraulic shears
• hydraulic hammer
• log grapple
• ripper
• digging grapple
• loading grab.

All this allows you to operate the machine not only at urban construction sites. It is actively used in agriculture and forestry, especially after the possibility of installing a log grab, as well as in rural, reclamation and transport construction.