Those characteristics on EC 12

Today, Tver-made excavators are among the best-selling in the Russian market. The annual sales volume of this equipment is about 160 cars. The prevalence of aggregates due to simplicity and familiarity. On Kalinin technology worked several generations of machinists.

The company "Tver excavator" produces products of the middle and lower price segment, focused on budget organizations and small construction. It should be noted that up to 90% of the components of excavators EC Tver factory produces independently. This allows you to more closely control the quality of products.

The Twax model EK-12 is considered the smallest in the line of the “Tver excavator”. In addition to her, this includes the EK-14 and EK-18 models. The equipment is a hydraulic unit designed for the development of quarries, wells, trenches and soils of categories I-IV. Also, the machine is used for unloading and loading of bulk materials, frozen masses of soil and loosened rock.

The EK-12 is great for working in confined spaces due to the possibility of reducing the turntable. Thanks to the unique geometry of the boom, the excavator allows you to create deep and narrow wells and trenches. Such work can perform a few models. The special design of the vehicle allows it to be transported without restrictions, even along general roads and highways. Controlling the EC-12 is intuitive and easy.

Initially, the model belonged to the category of machines of narrow specialization, for which parallel operations were not provided. In the future, Tverskoy Excavator has developed a number of additional modules that allow extending the perimeter of using equipment.

Now EC-12 has increased technological capabilities:

• variable boom geometry, providing increased digging depth and high maneuverability of the model;
• increased speed of movement;
• reduced radius of the turntable, due to which the excavator can be used in cramped conditions;
• the ability to perform precision operations.

Modifications

EK-12 is available in several versions:

• the classic version with a monoblock and a 0.65 cubic meter bucket;
• ЕК-12-10 is supplemented with a hydraulic pump “Bosch-Rexroth” and a hydraulic motor;
• EK-12-20 is distinguished by a reduced bucket (0.5 cubic meters), hydraulic hydraulics PSM, support-blade, stabilizers and a modified boom geometry;
• ЕК-12-24 - analogue ЕК-12-20 with a hydraulic pump “Bosch-Rexroth” and a hydraulic motor running;
• ЕК-12-40 is a version with a 0.65 cubic meter bucket, a propulsion motor, a hydraulic pump “Bosch-Rexroth” and the newest Perkins engine (in the other modifications the D-243 engine was used).

Specifications

In the basic version, the EK-12 is completed with a monoblock case and a ladle device. The total weight of the structure is 12900 kg. At the same time, the equipment has small dimensions: height - 3150 mm, width - 2500 mm, length - 8000 mm.

The maximum digging radius of an excavator is 8000 mm, the bucket immersion level is 5000 mm, and the maximum unloading height is 6400 mm. The bucket attachment of the model rotates 173 degrees. The maximum speed of the car is 22.5 km / h, which makes it very maneuverable, allowing you to cover significant distances.

Fuel consumption

The fuel consumption of the EK-12 is 229 g / kW per hour. The fuel tank holds 255 liters.

Engine

EK-12 is equipped with a 4-stroke 4-cylinder diesel unit model "D-243". Later versions are equipped with a Perkins 1104C-44 engine. In the engine compartment, the pump is on the right, the radiators are on the left. The silencer is located above the pump unit, creating an additional heat load. Not quite well placed and air filters. They are located in front of the radiators, which limits access and interferes with cooling. Start of the diesel is carried out by a starter. Elements of radiators are unified for all engines. Some modifications of the EK-12 are equipped with a Hydronic 10 start-up heater, which makes it easier to start the engine in cold weather.

The parameters of the unit "D-243":

1. working volume - 4.75 l;
2. power - 60 (81) kW (hp);
3. maximum torque - 258 Nm;
4. rotation speed - 1600 rpm;
5. cylinder diameter - 110 mm.

Device

The main feature of the EK-12, which distinguishes it from foreign analogues, is the pneumatic system. This element ensures the functioning of drum brakes, the switching off of the permanently closed parking brake, the switching off (switching off) of the front axle and the gear shifting of the 2-speed gearbox. The pneumatic system of the excavator is powered by a standard engine compressor, launching sensors, valves and receivers located on the turntable.

The chassis of the EK-12 contains many elements of domestic production, which significantly reduces the cost of servicing equipment and makes it more budget. The model also has a mechanism for quick change of equipment with hydraulic control.

The Tverskoy Excavator enterprise applies a unified cab with good equipment and interesting design to all its products. The operator's chair is adjustable in several directions and by weight. The cab windshield rises under the roof, which has a hatch, and the driver can adjust the steering column tilt. It will not be difficult to climb into the EK-12 cabin, since the steps here are not high from the ground (there are additional handrails).

Great effort steering excavator does not require, since it includes a hydraulic drive. The working equipment is controlled by servo-controlled joysticks. In the cockpit of the EK-12 there is a minimum of electronics, which increases the reliability and simplicity of technology. Also, there is no CAN bus and on-board computer, which significantly increases the cost of the unit.

Under the operator’s seat is the Zenit 8000 heater, which is powered by a motor cooling system. The air through the grille circulates directly without diffusers and ducts. Air conditioning and auxiliary heater for the EK-12 are offered only as an option.

A photo

Price new and used

The cost of the basic configuration of the new excavator EK-12 will be 2.9-3.1 million rubles. It is also possible to buy used equipment with a certain operational mileage. It will cost 0.7-1.2 million rubles.

Analogs

Analogues of the EK-12 model are excavators MSU-140 and EO-3323.

EK-12 - pneumatic hydraulic excavator, designed to develop trenches, trenches, quarries and wells in soils of categories I-IV, loading and unloading bulk materials, loosened rock and frozen soils.

The EK-12 excavator is used in various sectors of industrial, road-transport and public utilities.

The EK-12 excavator appeared as a highly specialized loader. But in recent years, the number of replaceable working bodies on EC-12 excavators has increased significantly.

Replacement equipment excavator EK-12:

1. GK-221 grab  designed for digging trenches, wells, trenches and other similar works, as well as for loading and unloading of various materials. The grab can be equipped with a full rotary hydraulic rotator. To increase the depth of capture of the cargo on the grapple, an extension cord can be installed, consisting of one or 2 inserts with a guide, which is mounted between the inserts to center the grapple.

2. Hydrohammers MG-300  (installed on monoblock boom models) MG-150, are intended for the destruction of concrete and reinforced concrete pavements, structures made of bricks, unreinforced concrete and other similar works, including loosening of frozen soil and tamping loose soil.

3. Ripper 314-03-40.17.300  for excavation of curb stone, opening asphalt concrete crust of frozen soil, etc.

4. Ladle  (0.32 m3, 0.5 m3) for digging narrow trenches or performing work on heavier soils.

The variable geometry of the working equipment improves the capabilities of the EK-12 excavator:

Increases digging depth;
   - provides a reduction in the volume of earthworks during the local repair of utilities in the utilities sector (digging of wells, narrow trenches in cramped conditions).

The compactness of the EK-12 makes it easy to fit into the urban traffic, the speed of movement of the excavator is increased. The EK-12 tracked excavator meets the needs of construction, road, repair and utility organizations.

One bucket full revolving excavator ЕК-12:

1 - support dump; 2 - power plant; 3 - hydraulic cylinder changes the geometry of the boom; 4, 5 - main and extension sections of the composite boom; 6, 8, 10 - hydraulic cylinders of a handle, a ladle and an arrow; 7- handle; 9 - bucket; 11 - pneumatic chassis device

The pneumatic excavator Twaks EK 12 is a hydraulic unit that is widely used today for the development of quarries, trenches, wells (category I-IV soils) and trenches. It can also be used for loading and unloading materials of loose type, loosened rocks of rock origin, frozen masses of soil.

This model is the youngest in the line. In addition to her, this includes models with indices 14 and 18. All of them are created by the forces of the Tver Excavator Plant. Over the years, the device has proven itself in a number of industries, among which are road transport, industrial, housing and utilities.

The unit is ideally suited for doing work in confined spaces. This, in particular, contributes to the possibility of reducing the turntable to 2 meters. Due to the special geometry of the boom, it is possible to create narrow and deep pits or wells. Very few excavators are capable of such. The special design of the hull allows transporting equipment on general roads without any restrictions. The maximum speed of movement of the device is 22.5 kilometers per hour. Managing it is characterized by intuitive clarity and simplicity.

Special mention deserves the comfort of doing work. Practice shows: the more comfortable the operator feels, the higher the quality of labor and productivity. The model in question has:

• comfortable cabin, finished with the use of ABC plastic
• powertrain electronic control system
• onboard controller

Machines of the twelfth model can be equipped with additional working elements: model MG-300 hydraulic hammer or ripper. In the first case, it becomes possible to destroy reinforced concrete or concrete pavements of roads, brick structures, frozen soil. In the second - the seizure of curbs and the opening of asphalt concrete crust.

Characteristics and prices

Now it's time to describe the technical characteristics of the EC 12 excavator. For clarity and ease of familiarization, the information will be presented in the form of a table.

In the case of equipment equipped with an arrow without variable geometry, the operating weight is 12.9 tons, the maximum bucket volume is 0.65 cubic meters. m

And now a few words about what could be the price of an excavator EC 12. A used model can be purchased for 650-880 thousand rubles. There are options and more expensive - 1.2 million rubles. If the organization does not have the necessary amount of funds, you can always rent equipment. In this case, the rates are approximately 1.3-1.4 thousand rubles per hour of work.

The Twaks EK-12 excavator belongs to the class of universal wheeled vehicles of a wide range of applications. Wheeled excavator can be used in industry, construction and any industries that require excavation work.

Excavator EK-12: technical characteristics

As standard, the EK-12 excavator is equipped with the MMZ D-243 motor. The power unit operates on four cylinders, and the volume of the system is 4.75 liters. The engine delivers a rated power of 81 hp / 59.6 kW. The crankshaft rotation speed is 2200 rpm. The rated fuel consumption of the excavator is 229 g / kWh.

The excavator is equipped with a hydrostatic transmission and air brake system. The maximum speed of the car 20 km / h.

The standard hydraulic system is produced by Bosch-Rexroth. Pump type - pneumatic. The system creates a maximum pressure of 28 MPa. The pump provides a capacity of 248 l / min.

The volume of the hydraulic system is 320 liters with hydraulic tank. The fuel tank is designed for 255 liters, the hydraulic tank - 250 liters. The excavator turntable can provide a maximum rotational speed of 9 rpm.

Working equipment and performance excavator EK-12

The EK-12 excavator is equipped with one bucket and an adjustable boom with variable geometry. The bucket volume in the standard machine version is 0.65 m3. The boom has a length of 4.7 m with a arm length of 1.9 m.

A parking-level excavator provides a maximum digging radius of 8060 mm. The cutting height of the soil reaches 9180 mm. Unloading can be made at the maximum height of 6530 mm. And the maximum digging depth reaches 4700 mm.

Excavator bucket can be rotated by 173 degrees. The maximum digging force on the bucket is 7650 kgf. The maximum digging force on the handle reaches 6500 kgf. The cycle time of the machine - 15 s.

Due to the variable geometry of the boom, the excavator has an increased digging depth and can be used in the cramped conditions of urban flows.

Dimensions of the excavator EK-12

The EK-12 excavator in a static position has a length of 8 m. The width of the machine is 2.5 m, the height along the cab is 3.1 m. The turning radius of the platform is two meters. This allows the excavator to easily maneuver in confined spaces. Machine operating weight - 12.9 tons.

The width of the turntable itself is 2.5 m. The height of the car along the boom reaches 2.9 m. The ground clearance under the counterweight is 1.3 m.

The wheelbase of the EK-12 excavator is 2.5 m. The chassis length is 4.7 m. The track width for the front and rear wheels is the same and is 2.1 m for the outside, 1.8 m for the inside. The minimum turning radius of the excavator is 8.2 m. The ground clearance reaches 315 mm.

The width of the blade is 2.5 m, the height of the blade is 560 mm. The width of the machine measured by outriggers in the working position reaches 3685 mm.

Excavator EK-12: model range

Excavator EK-12 is available in several versions, each of which has its own characteristics. Model EK-12-10 is a standard modification of the machine and has all of the above characteristics. Arrow type - monoblock.

The EK-12-20 model uses the PSM hydraulic system and uses a two-section boom. The excavator has 400 kg less weight than the previous model. The bucket is rated for 0.5 m3. Digging depth - 5.08 m.

The EK-12-24 model is used for a cove on 0.4 m3 and a two-section boom with a handle of 3.4 m. The digging depth is 5.08 m. The standard hydraulic system is Bosch-Rexroth. Operating weight - 12.5 tons.

EK-12-30 uses a variable boom with a handle of 2.8 m and a 0.5 m3 bucket. Digging depth - 5.08 m. Bosch-Rexroth hydraulic system with LUDV. The operating weight of the excavator is 12.5 tons.

The EK-12-40 excavator has an operating weight of 12.6 tons. From the working equipment, a bucket of 0.65 m3 and a monoblock boom with a handle of 2.2 m are available. The digging depth is 4.8 m. The Perkins 1104C-44 is used as the power unit. Hydraulic system Bosch-Rexroth. Motor power 83 hp / 63 kW.

The use of an excavator EK-12

Through the use of various equipment and high power systems, excavators can be used in all areas of management. First of all, the EK-12 excavator is a universal earth-moving machine. Sufficiently high maneuverability allows you to use the machine in urban environments, in utilities, construction and industry.

The standard bucket can be replaced with a grab for digging wells, trenches, trenches and others. The grapple can be used for loading and unloading. Hydraulic hammers and rippers can also be used as additional equipment. Thus, the EK-12 excavator is suitable for the destruction of obsolete structures, reinforced concrete structures and asphalt pavements. The machine can be used for excavation and removal of borders, opening of frozen soil and roadway.

The EK-12 excavator is a universal high-power machine adapted for various working conditions. EK-12 is able to replace several special-purpose machines, thanks to the removable working equipment