Excavator-bulldozer EO-2202-20

The EO-2202-20 excavator-bulldozer is designed to perform excavation work involving frequent movement between objects and work in cramped conditions.

The equipment of the EO-2202-20 model has become widespread and is used for heat, gas, water, and electrical drainage work, repair and maintenance of communication networks, as well as for landscaping and landscaping of urban areas.

Application area

The crawler excavator is indispensable for the construction industry. It is also actively used in the logging, agricultural, manufacturing and municipal sectors. A crawler excavator is in demand when carrying out road construction or emergency rescue work. Functional and design features, as well as a variety of additional equipment, allow this equipment to perform operations such as:

• development of pits for the construction of permanent buildings,
• arrangement of trenches for pipelines and communications,
• construction of ditches and embankments near roads,
• development of rocky soils,
• loosening frozen or particularly hard soil,
• cleaning water bodies from silt and other contaminants,
• demolition of buildings and other structures,
• loading and unloading of bulk materials,
• moving metal structures.

Equipment

Upon request, it can be supplemented with some attachments. For example, a narrow backhoe bucket will allow you to use this technique for special work: digging a trench of a certain width or digging in close proximity to the walls of buildings.

Equipping it with a hydraulic hammer will allow you to use an excavator-bulldozer for road construction and repair work. There are some other additional attachments for special equipment model EO-2202-20, which are available upon request.

This excavator-bulldozer is widely used and is used not only in the Republic of Belarus and the Russian Federation, but also in many foreign countries. Such great demand is due, first of all, to the reliability and high quality of EO-2202-20.

Only advanced technologies and processes are constantly being introduced into the production of EO-2202-20 excavator bulldozers; working units and components are made from high-quality materials with a high margin of safety. This inclines the choice in favor of buying EO-2202-20.

Backhoe loaders “EO-2202” have the following technical characteristics:

Excavator – bulldozer EO-2202-20 “Inter-Don” (based on the MTZ-82.1 tractor, Russian hydraulics, additional caries bucket, without an offset digging axis)

Excavator – bulldozer EO-2202-12 “Interdon” (based on the YuMZ-6 tractor, bulldozer blade, backhoe bucket 0.28 m3, imported hydraulics)

EO-2202-20 is intended for excavation work involving frequent movements of machines between objects and work in cramped conditions, EO-2202-20 is used for heat, water, gas, electrical drainage work and maintenance and repair of communication networks, as well as landscaping and improvement of urban areas.
The excavator-bulldozer has the base chassis of the MTZ-82.2 tractor. The MTZ-82.2 tractor is intended, first of all, to solve the problems of mechanization of mountain farming. The main factor limiting the use of lowland tractors in mountain farming is the steepness of the slope. Flat tractors can be used on slopes up to 8 degrees steep. EO-2202-20 has a lower center of gravity and, accordingly, has greater lateral and longitudinal stability. A lower center of gravity is achieved by installing front and rear wheels of reduced diameter.

EO-2202-20 is equipped with a modern water-cooled D243 diesel engine with a power of 59.6 kW (81 hp). Working volume - 4.75 liters. The differential lock has hydromechanical control with activation under load and three operating modes. The following electrical equipment is installed EO-2202-20 excavator-bulldozer

Cabin EO-2202-20 - safe (ROPS), meets the requirements of the OECD; comfortable, with filtered air supplied by fans, with a heating system; with opening side windows, rear window and sunroof; with electric wiper and washer; has a modern instrument panel with indicators and instruments that control and inform about the operation of the excavator-bulldozer systems. A universal, separate-aggregate system with power and positional control of the processing depth is also installed.

The EO-2202-20 excavator-bulldozer is equipped with a mechanical steering mechanism with hydraulic booster. EO-2202-20 has an operating weight of 6.5 tons. It also has a backhoe installed. The digging depth when working on the EO-2202-20 is 4100 millimeters, and the unloading height is as much as 3.5 meters, this allows the excavator-bulldozer to very efficiently load all kinds of dump trucks and similar equipment.

Crawler excavators - operation and application

Crawler excavators are used to perform general construction work and are used in the agricultural, logging, metal logging, and municipal sectors. Without these machines it is difficult to imagine performing road work, emergency rescue operations or demolition of buildings. Thus, crawler excavators are used on both small and large construction sites.

The most common representatives of the Asian market in our country are Komatsu crawler excavators, Hyundai excavators, and Hitachi excavators.

The wide variety of tasks performed using crawler excavators is combined with ease of operation and maintenance. The great popularity of models of this equipment is due to their high performance and minimal need for repairs. Machine downtime is reduced to almost zero, which, accordingly, makes it possible to carry out a large amount of work in a short time. High controllability, significant power, economical engines, excellent visibility from the operator's cabin, convenient control panel - manufacturers are constantly expanding and improving the capabilities of their special equipment in accordance with the latest technologies. As a result, consumers receive equipment designed to operate in difficult climatic conditions and designed for high loads.

There are a number of main areas of work performed by a crawler excavator :

• development of pits necessary for the construction of high-rise buildings and structures;
• development of trenches for communication systems and pipelines;
• construction of embankments and ditches during road construction;
• rock development;
• loosening frozen soils;
• cleaning the bottom of reservoirs from silt;
• demolition of buildings;
• cutting of metal structures;
• loading works.

Additional equipment (grab jaws, hydraulic hammers, replaceable teeth for buckets, buckets of increased volume, etc.) offered by manufacturers of special equipment allows you to significantly increase the functionality of a particular model. The advantage is the ability to remove or install equipment depending on the specific task being performed.

Where is it used?

The EO-2202-23 excavator-bulldozer is designed to perform relatively small volumes of dispersed earthworks, involving frequent transfers between work sites.

Performing operations in cramped conditions:

• maintenance and repair of water, heat, electricity, gas drainage and communication networks,
• on landscaping and improvement of cities and territories.

The EO-2202-23 excavator-bulldozer has established itself as a reliable, unpretentious and efficient equipment.

The EO-2202-23 excavator-bulldozer is equipped with a construction blade, allowing work to be carried out to a depth of up to 0.1 m, and a backhoe bucket.

It is noteworthy that the sale of EO-2202-23 can be carried out in conjunction with any additional attachments, for example:

• telescopic handle,
• narrow backhoe bucket,
• welding installation,
• ripper tooth,
• hydraulic hammer, as well as some others.

Advantages

The tracked chassis and other design features give special equipment of this type numerous advantages and make it an absolute leader in its segment.

• Increased cross-country ability. The equipment demonstrates stability when moving through rural areas, dirt roads, forest clearings and off-road conditions.
• Maneuverability. Crawler excavators can be deployed anywhere and can also move the working tool with a 360° rotation.
• Reliability . The machines withstand harsh climatic conditions and operate efficiently even under heavy loads.
• Versatility. The variety of attachments allows the equipment to perform different types of tasks - from digging trenches to loading materials.
• Sustainability . Tracked vehicles easily overcome difficult terrain, climbing the steepest slopes, and are reliably protected from tipping over.

Engine

The basic EO-2202-20 tractor is equipped with a modern, productive and efficient water-cooled D-243 diesel engine.

The engine allows the machine of this model to produce an operating power of 82 horsepower.

The EO-2202-20 machine has all-wheel drive; in addition, it has the ability to lock differentials, which makes this vehicle passable and allows it to be used even in the most difficult road conditions. And this leaves no doubt about buying EO-2202-20.

Classification

Modern models of crawler excavators have quite a lot of differences, although the main components are almost identical. The classification of equipment is carried out according to the following criteria.

By number of buckets:

• single-bucket – universal, suitable for work related to loading materials and digging soil;
• multi-bucket - specialized, used primarily for digging trenches and pits.

By engine type:

• electric – suitable for working in tunnels and other enclosed spaces;
• diesel - has more power and is used in open areas.

By drive of the working body:

• hydraulic – ensures the execution of two movements at once (digging, turning);
• mechanical – simple and reliable to use.

According to the shape of the bucket:

• straight shovel – capable of turning around when taking rock;
• a construction bucket is more spacious and durable.

By chassis type:

• normal – suitable for standard operating conditions;
• widened-elongated – ensures stability and off-road maneuverability.

Controls and cockpit

Smooth and precise control of the working parts of the EO-2202-23 excavator-bulldozer is achieved by using an ergonomic joystick system.

In addition to the fact that such a system allows the EO-2202-23 operator to easily and easily control work equipment, it increases the smoothness and accuracy of operations. Meanwhile, the joystick system guarantees the necessary adjustment of working positions based on the operator's needs.

The cabin of specialized equipment of this model is safe, meets all requirements and standards, comfortable, with a heating system, with air filtration supplied by fans, with opening side windows, a rear window and a sunroof.

All this makes operating this special equipment more comfortable and contributes to the choice in favor of buying EO-2202-23.

Specifications table

The technical characteristics of excavators are scattered over a very wide range. This is due to the fact that the machines have different purposes and are designed for different volumes of work. The main technical characteristics are summarized in the table:

The volume of the bucket is given geometrically. The actual amount of soil removed during operation, due to the “cap”, is 15-30% higher. On machines that are planned to be used on heavy soils, buckets of a smaller volume than necessary for this group are installed.

In addition to the parameters indicated in the table, the performance of an excavator depends on its design and technical condition. And also on factors not directly related to the unit: proper organization of work, driver qualifications, soil density, etc.

Tools

The design of crawler excavators allows them to be equipped with various types of removable equipment. Instead of a standard bucket, the operator can independently install any necessary tools on the rotary handle. Most often, hydraulic hammers, grab jaws, ripper teeth, hydraulic drills, log grabbers, and hydraulic shears are used to equip crawler excavators. Also, pile driver masts and various hooks are often used as a replacement for a bucket. All this allows us to significantly expand the list of tasks that can be solved using just one piece of equipment.

Advantages

One of the distinctive features of the EO-2202-23 model is the offset digging axis. This property allows the EO-2202-23 excavator-bulldozer to work in the most cramped conditions, which preclude the use of larger equipment:

• in close proximity to buildings,
• when working near asphalt concrete surfaces that cannot be damaged, as well as in other conditions.

Another striking feature of the EO-2202-23 model is the hydraulic distributor made in Italy.

Engine and diesel fuel consumption indicators

E0-4225 excavators are equipped with eight-cylinder diesel engines YaM3-2Z8GM2 produced by the Yaroslavl Motor Plant. These are engines with a V-shaped cylinder arrangement, 4-stroke, with direct fuel injection and compression ignition of the fuel mixture, liquid-cooled, without turbocharging, with a mechanical speed controller. YAM3-2Z8GM2 engines are designed for both cyclically variable and stationary operating modes. They are technologically similar to YAM3-2Z8M2 engines, differing from the latter in minor details and fuel equipment settings.

The YaM3-2Z8GM2 diesel engine is interchangeable with the YaM3-2Z8GM engines, which were supplied until 1988, as well as with the YaM3-2Z8G engine, which was supplied until August 1985. It is equipped with a clutch housing with a clutch release mechanism.

This power unit has decent technical characteristics and is able to operate stably in any weather and climatic conditions. It is reliable, unpretentious, not demanding to operate and easy to maintain. The YaM3-2Z8GM2 diesel engine has a rated power of 132 kW (180 hp), achieved at a rotation speed of 1700 rpm. The fuel pump used with the engine of this model is TNVD 8O9.5-2O.

The minimum diesel fuel consumption for the engine of this model is 206 g/kW per hour (152 g/hp per hour). The excavator's fuel tank holds 270 liters of fuel, which allows the equipment to operate for a long time without the need to refuel.

Other technical characteristics of diesel engines in numbers

• The working volume of the cylinders is 14.86 liters.
• Cylinder diameter – 13О mm, piston stroke – 14О mm.
• Overall dimensions of the motor – 144О x 1ОО5 x 122О mm.
• Engine weight – 1.175 tons.

Technical characteristics of crawler excavators

Among domestic cars, EO models can be distinguished. EO crawler excavators are based on Soviet-era tractors. Currently, among these models we can highlight the EO-5126 excavator.

This is a full-rotary single-bucket equipment produced by Uralvagonzavod. The company provides a 1.5 year warranty from the date of purchase. The model is called "Tagil". It is very durable and powerful, and at the same time has a well-thought-out design that facilitates maintenance and repair of the machine.

Specifications:

• Tagil is quite large, its dimensions are: length - 10850 mm, width - 3170 mm, height - 5280 mm;
• engine - eight-cylinder, diesel;
• the cost of a new model is 3.5 million rubles, an older car is 1-2 million rubles, a used excavator that has been little used is 800-900 rubles.

A mini crawler excavator is a small excavator that exactly replicates the features of larger models. It has a smaller turntable and rubber tracks. The weight of mini excavators starts from 0.8 tons and reaches 8 tons. That is, large and small machines do not differ from each other in anything other than size. The advantages of mini-excavators are maneuverability in hard-to-reach places, low price and efficiency. Disadvantages include low speed, inability to use attachments and shallow digging depth. Small excavators are a good alternative to manual labor.

A crawler excavator operator must know:

• machine device;
• technical specifications (including various components and elements);
• safety precautions;
• Traffic Laws;
• basic troubleshooting.

And also have a certificate with the appropriate category.

Technical characteristics of EO-2202-20

The bulldozer-excavator is made on the chassis of the well-known Bularus-82.2 tractor. Thus, special equipment of the EO-2202-20 model can be used to solve problems of mechanization of mountain farming.

Steep mountain slopes are not a problem for the MTZ-82.2 tractor. This is facilitated by a reduced center of gravity, which gives the EO-2202-20 model greater lateral and longitudinal stability.

A lower center of gravity became possible due to the installation of front and rear wheels of reduced diameter. All this contributes to the choice in favor of buying the EO-2202-20 special vehicle.

Maintenance of the EO 4225 excavator

EO-4225 is a reliable and productive equipment. It is unpretentious in maintenance and is not demanding on the quality of fuel and working fluids. In order for the machine to serve for many years without failure, it is necessary to carry out regular maintenance : check the oil level before each shift, inspect the machine for oil leaks, and check the level of coolant and oil in the hydraulic system at least once a week. It is also necessary to promptly replace filters, bushings and seals. A detailed list, description and frequency of work are specified in the operating manual.

Hydraulic distributor system

The hydraulic distributor is an essential and integral element of any system that uses fluids as the main working force.

The hydraulic distributor in the system of the EO-2202-23 machine is used to change the direction of the flow of working fluid by completely opening or completely closing the flow area.

Thanks to the presence of this most important element of foreign production, all operations of the EO-2202-23 excavator-bulldozer are performed with precision and smoothness, which distinguishes this model from analogues of other production and leaves no doubt about buying EO-2202-23.

Car history

The creation of “2101” was preceded by a whole chain of organizational and technical measures, from the founding of the plant itself, to cooperation with various foreign companies and, first of all, with the Italian FIAT plant.

It was the FIAT 124, which was recognized as the most popular, that was supposed to become the prototype of the new Soviet car. But in the process of developing a new concept and testing the FIAT 124, a discrepancy between the technical characteristics of the latter and the road conditions in the Soviet Union was revealed:

• With intensive use, the body and weak suspension did not provide the required strength;
• The ground clearance was low and did not meet off-road requirements;
• There were no elements that would ensure towing the car if it breaks down on the road.

As part of close cooperation, Italian engineers took an active part in the development of the new model and more than eight hundred changes were made. For example:

• The rear wheels received drum brakes, suitable for bad roads;
• The rear suspension design has been completely changed;
• The front suspension has been strengthened;
• The clutch has been strengthened and the operation of the synchronizers of the “2101” gearbox has been improved;
• The salon could become a sleeping area, thanks to the transformation of the seats;
• A new overhead shaft engine was installed.

As a result, only the appearance remained in the new car from the Italian one. Tests carried out with the first six vehicles showed reliability and good maneuverability, so subsequent improvements were minor.

2101 - received the official name “Zhiguli” after the name of the small mountains beyond the Volga not far from the automobile plant, which is located in the city of Tolyatti. The people gave the car a simple, respectful, memorable name “unit”. Later in the 80s, amid a decline in prestige, it received the name “kopek”. Years of production: 1970 - 1982. In total, more than 2.7 million copies were produced during this time.

Cat® Crawler Excavators

Cat® equipment, developed by the American manufacturer Caterpillar, is among the leaders in its category. It allows you to perform a wide range of work quickly and at minimal cost. Simple operation and a variety of additional equipment make it a profitable purchase for an enterprise of any type of activity. Crawler excavators are available in standard and compact models of low, medium and high power. All equipment has high performance and safety indicators. Those looking to rent or buy a Cat® excavator can view the range and features of the machines here.

Cat 318 D2L

With improved handling, superior power and a comfortable work environment, the 318 D2L Hydraulic Crawler Excavator is a leader in its class. It is also versatile and easy to use, increasing productivity and reducing operating costs. The machine is equipped with an ACERT C4.4 engine, which has convenient electronic control and meets the environmental requirements of Tier 3, Nonroad Stage III, Stage IIIA EC. Together with a highly efficient hydraulic system, such a unit provides significant productivity with relatively low fuel consumption.

The design of the excavator is resistant to loads. The cabin offers comfort and excellent visibility, which helps improve operator productivity and ensure safety on site.

New generation Cat 320

The new generation 320 crawler excavator combines a number of modern technologies and developments: Payload, Grade Assist, Cat GRADE with 2D, etc. Together, this helps to increase operator productivity by almost half. The machines are equipped with updated cabs that are designed to provide the most comfortable working conditions (i.e. reduce fatigue) and excellent visibility (this is necessary for increased safety on site).

Excavators are equipped with modern engines and hydraulic systems that reduce fuel consumption by 20%. Together with extended periods between maintenance, this makes the operation of such equipment as financially profitable as possible. Users get an economical crawler excavator that can handle any task.

Cat 336D2 GC

Excavators of this model are distinguished by high productivity with economical fuel consumption, as well as great versatility - they can be used to solve various construction and production tasks. The machines are equipped with fuel-efficient ACERT C9 engines that meet the requirements of environmental standards of the USA, Japan, China and the EU. Together with an advanced hydraulic system, these drives help reduce operating costs, which is achieved by reducing fuel consumption. The reinforced design of excavators ensures their resistance to increased loads and the ability to operate stably in the most difficult conditions.

The spacious cab offers excellent visibility and the panel is designed to provide quick access to all controls. All standard maintenance procedures are carried out very easily, since basic technical components are easily accessible.

Cat 374FL

The 374FL Heavy Duty Excavator was designed to increase job productivity while reducing operating and maintenance costs. Thus, compared to the 374DL model, fuel costs are reduced by almost a third - by 28%. The vehicle is equipped with a C15 ACERT engine, which meets the emission standards of Japan, the USA, China, and the EU. This ensures stable operation and fuel efficiency of the engine.

The main sources of the excavator's power are the new ACS (Adaptive Control System) valve and an improved hydraulic system. The machine can quickly move tons of material being processed throughout an entire shift. The cabin has a high level of comfort and good noise protection. Thanks to the well-thought-out arrangement of control elements, all manipulations are carried out very quickly.