Bulldozer Chetra T-35 (technical characteristics)

The manufacturer of the model is Russian, which is located in Cheboksary. Thanks to new developments and technologies, the Chetra T-35 has high performance indicators. It has impressive dimensions and is capable of working in difficult conditions.

The technique used is predominantly:

• in construction (industrial, oil and gas and hydraulic engineering);
• as earth-moving equipment when developing soils of the fourth category;
• in the mining industry.

Navigation

• Features and Benefits
• Modifications
• Technical characteristics and dimensions, fuel consumption
• Engine
• Transmission
• Hydraulic system
• Chassis
• Attachments
• Cost of new and used
• Analogs

Features and Benefits

The features of the Chetra T-35 bulldozer include:

• semi-rigid suspension, which is attached to the main frame at three points. Dynamic impacts are reduced, traction properties are increased and the quality of working conditions is improved due to the installation of a remote swing axis of the bogies;
• the presence of functional units, the repair and maintenance of which is comprehensive. The accessibility of all parts of the working bodies, transmission, chassis and cooling system allows them to be diagnosed and repaired quickly and easily;
• modern equipment guarantees the completion of all assigned tasks on time, regardless of the volume of work and its complexity (with minimal costs);
• The power plants of the Chetra T35 tractor are characterized by high power, which has a beneficial effect on the traction characteristics of the machine.

For the oil and gas industry, a particularly important advantage of a bulldozer is its high productivity. The work that the equipment copes with - from the development of high-strength rocks to the leveling of territories.

Operator's cabin Chetra T-35

The latest innovations in machine production include:

• installation of David Brown Hydraulics pumps, manufactured in England, instead of the usual NSh (since 2009);
• installation of SKF (Sweden) or FAG (Germany) bearings in pump drive gearboxes. The result is a longer service life;
• new design of the undercarriage, bell-free bogie with a telescopic element for releasing or tensioning the track (since 2009);
• installation of new improved o-rings. The result is an increase in the tightness of wheels and rollers;

Bulldozer Chetra T35

• installation of INF springs (Germany) for normal operation of the transmission control unit valves;
• increasing the quantity and quality of discs in brakes (since 2010);
• installation of two additional heaters in the operator’s cabin - dependent Xers 400 and independent Airtronic D2;
• installation of high pressure hoses (since 2011).

Design and operating features

CHETRA T 35 has a standard design for brand models with a durable frame and a 3-point semi-rigid structure, the main feature of which is the remote swing axis. This design helps reduce shock loads, improve working conditions and traction characteristics. 7 road wheels located on each side guide and support the wheels. The guide wheels have self-clamping cone-shaped seals.

The chassis uses non-permanently closed clutches and permanently closed brakes, presented in the form of multi-disc clutches in oil, which guarantees smooth control of the bulldozer. The tracks are prefabricated with 1 grouser and a seal that helps seal the lubricant of the hinges for the full service life.

Other characteristics of the chassis:

• number of shoes – 42;
• shoe width – 650 mm;
• lug height – 90 mm;
• track contact area – 4.67 sq.m;
• caterpillar link pitch is 250 mm.

CHETRA T 35 is equipped with a hydromechanical transmission, including a matching gearbox, planetary gearbox and main gear, which are represented by a single unit installed in the rear axle. The 6-speed gearbox (3 forward and 3 reverse gears) with oil-immersed clutches is distinguished by its high power transmission capability. The gearbox shifts under load, allowing you to maintain the desired operating parameters using a single lever.

The final drive has a 2-stage design with a first stage (external gears) and a second stage (planetary). Another important transmission element is the single-stage 3-element torque converter, which has an active diameter of 480 mm. It is installed on the pump drive gearbox and integrated with an elastic coupling and gearbox.

The hydraulic system used in CHETRA T 35 is structurally no different from similar elements in other models of the manufacturer. It is of a separate-aggregate type and includes the following main elements:

• 3 gear pumps with a total capacity of up to 500 l/min;
• 2 spool valves for changing the angle of inclination and raising the teeth and ensuring the required blade misalignment;
• safety valve;
• hydraulic tank with filters and hydraulic cylinders.

The CHETRA T 35 cabin is designed for one person. It is installed using rubber shock absorbers to improve comfort. Other features of the cabin include an acoustic, noise-absorbing structure and a wide panorama. The cabin has a heating and cooling system and ventilation that create a comfortable microclimate. The operator's seat is adjusted to the parameters of a particular driver. The cabin has everything for normal operation, as well as special buttons for adjusting and diagnosing the machine, making it easier to control the equipment. In addition to standard indicators that allow you to detect and eliminate technical failures, there are buttons in the cabin that show the following parameters:

• gearbox oil pressure;
• engine oil pressure;
• condition of oil and air filters;
• oil temperature;
• battery charge;
• engine cooling level.

For modifications intended for the Far North, the equipment includes a warm cover, radiator protection, fuel heater and cabin insulation.

CHETRA T 35 can be equipped with various equipment:

• U-blade;
• SU-blade;
• single-tooth ripper;
• three-shank ripper.

Modifications

Model modifications differ in the type of power plant and attachment:

Bulldozer Chetra t 40

Bulldozer Chetra T 40 is a “giant” in the Chetra line. Tractor weight - 67.8 tons, engine power 590 hp. A special hydraulic system, developed specifically for this model, makes it easy to control this colossus. This system makes it possible to smoothly move the tractor from a standstill and smoothly change gears. The transmission makes it possible to make maximum use of engine power. Accordingly, the traction force of the T40 is no worse than that of imported analogues.

The T 40 bulldozer is equipped with a single-tooth or three-tooth ripper, the weight of which is 6.1 tons and 8.3 tons, respectively. The volume of the hemispherical blade is more than 20 cubic meters. m.

It is necessary to mention the exceptional durability of the parts of this bulldozer. Thanks to the quality of the materials used, advanced designs and technologies, the bulldozer operates 15,000 m/h before major overhaul, which is economically beneficial for the buyer of this model.

The cabin is air-conditioned, quite comfortable, and has all-round visibility. The cabin design minimizes noise and vibration.

Technical characteristics and dimensions, fuel consumption

Technical characteristics of Chetra T-35:

Bulldozer dimensions:

The fuel consumption of the Chetra T-35 is 228 g/kW per hour.

Tractor T 35

The T 35 wheeled tractor differs from its tracked counterparts in that it does not damage the road surface when moving and goes everywhere easily. It is used mainly in agriculture, but it also performs industrial work. Engine – 3 cylinders, gearbox – manual with eight forward and six rear speeds. Different drives allow you to brake with certain wheels. The tractor turns around on an area of ​​3.5 meters, which gives it the advantage of working in small areas. The vehicle is capable of towing trailers up to 2 tons, with an average speed of 30 km/h. The single cabin is equipped with heat and sound insulation, heating and ventilation. Tractor dimensions: 3500*1420*2490. Weight – 2t 250kg. Fuel consumption is low, the tank holds 50 liters.

Engine

Can be of three types (determined by model modification):

• Cummins QSK19-C650 - manufactured in America, characterized as a four-stroke six-cylinder engine with a volume of 18.91 liters. It is equipped with cooling (liquid), turbocharging with a preliminary decrease in the temperature of the incoming air, and has a power of 360 kW (490 horsepower). The cylinders are installed with a diameter of 16 cm. The maximum torque is 3119 Nm, the installation produces 2100 rpm. In addition, the “Quantum” option is responsible for direct injection, timely response in case of malfunction in order to protect, check and correct engine control;
• YaMZ-850.10 - produced in Yaroslavl, characterized as a four-stroke twelve-cylinder engine with a volume of 25.9 liters. It is equipped with a cooling system (liquid) and turbocharging, and has an output of 383 kW (520 horsepower). The cylinders, 14 cm in diameter, are arranged in a V shape, with a camber angle of 90 degrees. The maximum torque is 2686 Nm, the installation produces 1900 rpm;
• KTTA19-520 is installed extremely rarely. Has a power of 352 kW (480 horsepower).

Bulldozer T-35: technical characteristics

Its two modifications T 35 and T 3501 practically do not differ from each other and consist of the following technical features:

Engine

Engine – 12-cylinder, diesel fuel. The engine system is four-stroke “liquid-air” with turbocharging and cooling 850.10. Manufacturer: Yaroslavl Motor Plant. Volume - 25.86 liters, power up to 520 horsepower. A 4-cylinder engine with an air-to-air system with a volume of 18.9 liters is also used. A full flow filter cleans the oil. The heat exchanger operates on a liquid-oil mechanism. The fuel injection system is automatic and diagnoses the condition of the engine.

Chassis

Suspension – a remote semi-rigid axle reduces the load on the chassis. Seven road wheels on each side support and guide the wheels. The seals on the wheels are cone shaped. The tracks are tensioned using a grease gun. The mechanism is prefabricated, which is sealed to retain lubricant in the hinges. 42 shoes with a width of 65 cm walk at a distance of 25 centimeters. The height of the ground hook is 9 cm.

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Loosening equipment

The conditions for loosening work differ, so a different number of teeth is installed for each specific situation. Productive special equipment depends on the angle of the hydraulic system of one to three teeth, each of which weighs up to 6830 kg. The maximum depth that loosening equipment can produce is from 90 to 154 cm, tearing - up to 50 tons, cutting - up to 20 tons.

Transmission

High torque allows you to operate the bulldozer with ease. All actions are controlled by one lever. Gearboxes with a gearbox are equipped in the rear axle and have 3 reverse and forward speeds of the machine. A torque converter is connected to the gearbox by a spitz coupling with a similar one on the engine, and the gearbox is connected to a cardan drive.

Hydraulics

Three gear pumps provide a capacity of 500 l/minute at an engine speed of 1900/minute. Two spool valves lift, change the angle of the teeth, and also provide blade misalignment.

Blade

The dimensions of the SU dump are 4710*2210 mm, the volume of soil placed is 18.5 cubic meters. The maximum lift from the ground is 1.7 meters. The parameters of the U-blade are slightly smaller.

Dimensions and weight of the tractor

The weight of the bulldozer with all the equipment, the Yaroslavl engine is 61t 360kg, with the Cummins engine – 60t 500kg.

Cabin

It can accommodate one person and is supported by rubber shock absorbers. It has a wide panorama, ventilation, heating, cooling systems, and an acoustic design that absorbs noise. The seat is adjustable according to the driver's parameters. The cabin is equipped not only with the necessary conditions for the driver to work, but also with adjustment buttons and device diagnostics that are important for the functioning of the machine as a whole.

Hydraulic system

Piston mechanisms Chetra T-35

The hydraulic system consists of separately installed units of:

• 2 spool valves, which are needed to raise and adjust the angle of inclination of the teeth, which are adjusted through the hydraulic system;
• hydraulic cylinders and hydraulic tank with filters;
• a safety valve that turns off the system when the pressure reaches 20 MPa;
• 3 gear pumps with a capacity of 500 l/min (total).

Bulldozer Chetra t 25

The Chetra T 25 bulldozer weighing 45 tons is used in the construction and mining industries for heavy work. This powerful bulldozer is used to develop rocky and frozen soils. The volume of the turbodiesel engine is 15 liters. and power 420 hp.

The heavy tracked T25 is equipped with a ripper, even one tooth of which confidently and easily cuts frozen soil. In another configuration, the bulldozer can be equipped with three teeth.

Due to the fact that it is possible to stop one caterpillar while the second continues to move, the T 25 01 bulldozer is able to turn around literally on the spot. The visibility from the cabin is excellent due to the location of the windows, as well as the height of the cabin above the ground (2.5 m).

The thickness of the blade is several centimeters. The corners of the cutting edge are reinforced with thick alloy steel.

Attachments

• U blade 5.2 m long and 2.21 m high;
• SU blade 4.71 m long, 2.21 m high.

Due to the large volume of dumps, the bulldozer has high productivity. To ensure a minimum distance from the blade to the hood and maximum cutting force, a diagonal rod is installed. It transmits lateral forces to the spar.

Depending on the area of ​​application of the Chetra T-35, the ripper can be:

• single-tooth with a maximum breaking force of 49 tons, a weight of 6.17 tons and a maximum depth of 1.5 m;
• three-toothed with a maximum breaking force of 48 tons, a weight of 7.23 tons and a maximum depth of 0.9 m.

Hitch for rear ripper Chetra T-35

Advantages and disadvantages of these bulldozer models

The advantages of the T 35 equipment are high performance, versatility, and safety. In addition, the following distinctive characteristics have been identified:

1. Maneuverability.
2. Speed ​​of movement.
3. All-terrain capability.
4. Low fuel consumption.
5. Equipped with emergency indicators.
6. Various equipment.
7. Sturdy, solid device.
8. There are also disadvantages when working with machines.

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There are no critical shortcomings, but additional attention should be paid to the transmission during operation of the equipment, because the oil overheats in the event of intensive work. Also relevant are the prices for consumables, repairs, spare parts - they are high, which hits your pocket.