Bulldozer T 25: description, specifications, engine and operating features

2024 Author: Howard Calhoun | [email protected]. Last modified: 2023-12-17 10:16

Crawler heavy bulldozer "Chetra T-25" appeared on the domestic market relatively recently - in 2012. Since then, this machine has managed to prove itself in various earthworks from the best side. In any case, this bulldozer received very good reviews from consumers.

Manufacturer

The domestic enterprise Promtractor, whose production facilities are located in Cheboksary, is engaged in the production of these machines. The construction of this plant began back in the days of the USSR - in 1972. The first bulldozer rolled off the assembly line of the enterprise in 1975. The plant has been supplying tractors to the market under the Chetra brand since 2002. Bulldozers of this brand are imported today, including abroad. At the same time abroad, as well as in Russia, they are a huge success.

What is used for

Bulldozers T-25 are most often purchased by enterprises of the industrial and oil and gas complex. Also, this technique is quite in demand in:

• hydrotechnical construction;
• mining industry;
• when mining rocky and frozen soils.

In industry, these tractors can be used to develop soils of 1-4 categories. At the same time, sections of category 1-3 of the Chetra T-25 machine pass without preliminary loosening. When working on soils of category 4, single-tooth or three-tooth rippers can be attached to such bulldozers. Equipped with such attachments, Chetras are often also used to remove old pavement or perform other similar manipulations.

Description of the machine

Judging by consumer reviews, the Chetra T-25 bulldozer, the technical characteristics of which will be discussed by us in the article, is distinguished primarily by its functionality and ease of maintenance. The advantages of this machine also include the fact that its powerful engine can be changed to motors from almost any other manufacturer.

Also, the Chetra T-25 bulldozer, judging by the reviews, has good maneuverability. This modernized tractor is being manufactured with the main components based on the module. This makes the machine lighter and more productive. Among other things, the Chetra T-25 engine is supplemented with special heaters that guarantee uninterrupted operation at low temperatures.

The hydraulic system of this tractor is controlled by an electronic panel. At the same time, it is regulated taking into account the load.

Developing this model, design engineers focused on its cross-country ability. This machine, among other things,characterized by a reduced level of pressure on the supporting surface. At the same time, the caterpillars on the bulldozer are extended with an increased number of rollers. It is not necessary to adjust the latter, as well as the onboard clutches, when the Chetra T-25 tractor is operating.

One of the features of the T-25 is that with its use it is possible to carry out work on diagonal traction on absolutely any terrain. The blade to the hood of this tractor is approaching the minimum distance.

In addition to the basic model, the Promtractor company also produces several of its modifications. For example, a fairly popular model among consumers is the T-25 01 bulldozer. This model is distinguished primarily by high productivity.

Technical characteristics of the bulldozer T-25

This machine can operate at three speeds both forward and reverse. The gearbox on this model is automatic. Semi-rigid tractor suspension has a three-point arrangement. This one provides good traction and excellent grip.

The number of shoes on the Chetra T-25 tractor can reach up to 39 pcs. Their width is 61 cm, and the height of the lugs is 8 cm. The total bearing surface of this tractor is 4 m2. Also, tractor tracks have the following characteristics:

• shoe width - 610mm;
• load on the ground - 1.2 kgf/cm2.

For all its performance and functionality, the dimensions of the Chetra T-25 bulldozer are not too large. The width of this tractor is 4.28 m, and the length is 9 m. The height of the machine is 4.115 m. At the same time, the weight of the tractor is 48.335 tons. This model, as already mentioned, creates very little pressure on the supporting surface. Therefore, the tractor can be used to perform work, including in areas with weak soils.

The hydraulic system of the model is provided with three gear pumps, ensuring its high performance and functionality. Two distributors ensure correct blade tilt and stable ripper position.

Deepening this model gives up to 69 cm. This indicator maximizes the performance of the tractor. As already mentioned, loosening the soil using a T-25 bulldozer can be done in one or three teeth.

Driver's cab

The T-25 model is not only distinguished by excellent performance. The engineers who designed this bulldozer also took care of the people working on them. The driver's cab in these tractors is equipped with the most comfortable. The driver's workplace is provided:

• lighting;
• heating system;
• ventilation system.

The seats in the Chetra T-25 cab are soft. If desired, the driver can use the cigarette lighter or one of the two sockets. Of course, a seat belt is provided in the tractor cab. This bulldozer has double windows. The advantages of this model, consumers also include improved sound insulation. In addition, for conveniencethe driver's cab is mounted on rubber shock absorbers. By additional order from the enterprise, modern air conditioners can also be installed on Chetra tractors.

Engine

Initially, the manufacturer installs YaMZ-8501.10 engines from the Yaroslavl Motor Plant on the Chetra T-25 bulldozers. The volume of this unit is 25.9 liters, and the power is 405 l / s. The fuel for the engine of this tractor is diesel. In addition to the innovative cooling unit, the design of the YaMZ-8501.10 engine provides for a special Quantum system for its additional protection and diagnostics.

The specifications of the T-25 bulldozer engine are as follows:

• volume - 25.9 l;
• power - 298 kW;
• cylinder arrangement - V-shaped;
• torque - 2230 Nm;
• cylinder diameter - 140 mm;
• speed - 1800 rpm;
• number of cylinders -12;
• diesel 4-stroke unit 6-cylinder imported.

Equipment

The manufacturer equips the T-25 tractor during the manufacturing process:

• 11.9 m hemispherical blade3;
• blade-rake;
• 13.3 m spherical blade3.

This makes the machine extremely versatile, productive and easy to use.

Features of operation

The Chetra T-25 bulldozer is easy to operate. According to the owners of such machines, their operation is facilitated, among other things, by the fact that the manufacturer has reduced the likelihood of oil leakage in them. Also in this tractor it is very easy to change the bearings on the hub.

Some drawback of the T-25 bulldozers is considered by their owners to be the not very perfect design of the suction pump. Unfortunately, during the operation of the tractor, it often breaks down. To prevent this from happening, the owners of such bulldozers are advised to pay maximum attention to the maintenance of the extraction pumps.

The characteristics of the bulldozer T-25 are simply excellent. Among other things, it facilitates operation and makes this tractor more productive because its design provides for a blade of increased capacity. Also, judging by the reviews, this part of the T-25 is very easily adjustable in terms of tilt.

Interesting facts

The T-25 tractors are actually used very widely nowadays. For example, it was these domestic bulldozers that once participated in one of the largest construction projects of the 2000s - the laying of the Blue Stream gas pipes. This highway, which is very important for the country's economy, was extended to Turkey along the bottom of the Black Sea in 2001-2002

Also, T-25 bulldozers were widely used in the construction of the Sakhalin-2 pipeline. Under this project, two offshore oil fields were developed. Its implementation began in 1996. The second phase of the project ended at the endzero. A pipeline was laid in those days to the southern part of Sakhalin Island, where oil export terminals and a gas processing plant were then built.