Power tractors in horsepower table. Cultivation of forage grasses: timothy grass. What category of vehicle is the tractor

One of the necessary conditions for the analysis is the systematization of the material in accordance with the accepted classification. Thus, a tractor is a self-propelled machine designed to perform a wide range of work using trailed, mounted, semi-mounted, as well as stationary machines and tools. Tractors are classified according to various criteria. By scope distinguish: agricultural, industrial, forestry and forestry.

Agricultural tractors are designated for the purpose of tractors:

General purpose - used for energy-intensive operations in agricultural production (traction classes 3.0, 4.0, 5.0 and above);

Universal - for general business. Suitable for the cultivation and harvesting of tilled crops (traction classes 0.6; 0.9; 1.4 and 2.0);

Universal tilled - for the following agrotechnological operations: sowing of tilled crops, caring for them and their cleaning; perhaps limited use on primary tillage (traction classes 0.6; 0.9; 1.4 and 2.0);

Specialized by types of cultivated crops - cotton, vineyard, beet, rice, horticultural, vegetable, small-sized, etc .;

Self-propelled chassis is a type of universal tractor with a front frame.

In addition, agricultural tractors are divided according to the type of running system - wheeled and tracked.

Wheeled tractors differ in the “wheel formula”, reflecting the total number of wheels, the number of driving wheels and their dimensions. So, a four-wheel tractor with front steering wheels of a smaller diameter and rear leading wheels of a larger diameter has a wheel formula 4К2. The number “4” indicates the total number of wheels, and the number “2” indicates the number of driving wheels. If the front wheels are leading, but of smaller diameter, the wheel formula has the form: 4К4а, where the second number “4” indicates that the tractor has four driving wheels, and the index “a” indicates a smaller diameter of the front driving wheels. Tractors with all four driving wheels of the same diameter have the wheel formula 4К4б, where the index “b” indicates the equality of the diameters of the front and rear wheels.

The main classification feature of agricultural tractors in the Russian Federation is the nominal traction force, which develops the tractor on the stubble of average density and at normal soil moisture (from 8 to 18%) in the zone of maximum traction efficiency with an operating weight stipulated by the technical characteristic (for wheeled tractors with ballast weight) with the maximum slipping (for tracked - no more than 5%, wheel 4K4 - no more than 16%, wheel 4K2 - no more than 18%), characterizing the traction class of the tractor.

Traction class tractor is determined by the value of the nominal tractive effort, which is calculated by calculation or experimentally. Important in determining the traction class of agricultural tractors is played by the type of the undercarriage system and the operating weight of the tractor, which determine its traction characteristics.

Tractors traction class 0.2.

Tractors of 0.2 class are characterized by low engine power (9 ... 12 kW) and are intended for the mechanization of agricultural, municipal and construction work. Compact tractors of the specified class are equipped with hydraulic systems and attachment mechanisms, allowing them to be aggregated with various trailed and mounted implements. Currently, traction class 0.2 is represented by the following tractors: KMZ-012CH (produced by OJSC Kurganmashzavod; discontinued), Belarus-132N (manufactured by RUE Smorgon Aggregate Plant, which is part of Minsk Tractor Works ), Uralets (produced by Chelyabinsk Tractor Plant LLC - URALTRAC) and others.

Tractors traction class 0.6.

In relatively small areas of agricultural land, when performing low-energy-intensive work (basic and preplant tillage, sowing and planting crops, forage harvesting, transportation of cargo over short distances, etc.), tractors of traction class 0.6 are used. One of the most common tractors in this class is the T-25 and T-25A tractors (these models have been modernized and now they are presented as T-30-69 and T-30-70) produced by Vladimirsky Motor-Tractor Plant LLC (LLC "VMTZ"). In addition, in the power range of 25-45 hp LLC VMTZ represents a fairly wide range of model range. Thus, the universal tilled tractors VTZ-2032A, VTZ-2048A are used both in agriculture and in the utilities sector, in warehouses, where maneuverability and the ability to carry out loading and unloading operations in conditions of limited space are priorities. The Belarus-320 wheel tractor (produced by the Minsk Tractor Plant) in the 0.6 class traction class has been gaining popularity in recent years.
  In addition to the universal tilled wheeled tractors in traction class 0.6, self-propelled vehicles of frame construction (self-propelled chassis) are produced. Self-propelled chassis is used in vegetable growing, melon growing, in on-farm transport works, and also as a power unit for various attachments when performing special works. In the Russian Federation, only VMTZ LLC (VTZ-30SSH) produces self-propelled chassis. The main parts and assembly units of the chassis are unified with the VTZ-2032 tractor and differ from it in that the diesel engine and power transmission are located on the chassis at the rear, and the front part It is an open frame for installation of a platform, mounted units and machines.

Tractors traction class 0.9.

Wheeled tractors of 0.9 class in the unit with mounted and trailed implements are used for pre-sowing tillage, seeding, inter-row cultivation of tilled crops, as well as for harvesting feed, transport work, driving stationary machines, working on livestock farms and for performing other general economic works Effectively used in medium-sized agricultural organizations and farms. The only company that produced class 0.9 tractors was Lipetsk Tractor OJSC (LT OJSC), which is part of the Tractor Plants concern. One of the first models of this class was the T-40M, made with two driving axles, therefore, having increased traction power and better maneuverability. The tractor T-40ANM (modification T-40M) had a lower center of gravity and therefore was able to work not only on the plains, but also on the slopes.

In recent years, JSC LT produced universal tilled tractors of the LTZ-60 series (LTZ-60A, LTZ-60AB and LTZ-60AB-10).

In harsh market conditions, the production of these tractors has become unprofitable due to a decrease in demand for them, since they are not able to perform agrotechnological operations in an aggregate with attached and trailed equipment intended for class 1.4 tractors, and use them with aggregates intended for class tractors 0.6 is not economically feasible. Especially for tractors of class 0.9, mounted and towing equipment is not produced. In 2009 the concern Tractor Plants ceased the production of tractors in Lipetsk.

Tractors traction class 1.4.

Wheel tractors of class 1.4 with a nominal pulling force from 12.6 kN to 18.0 kN are intended for various agricultural work with mounted, semi-mounted and trailed machines and implements. In addition, they can be used to perform labor-intensive work in the unit with bulldozers, excavators, loaders, hole diggers, as well as for special transport works and to drive various stationary agricultural machines. Tractors of the 1.4 class are the most common in the Russian Federation, the largest share of which falls on tractors produced by the Minsk Tractor Works. Historically, the center of production of wheeled tractors in the USSR has become the city of Minsk (Belarus). In 1974, the Minsk Tractor Plant began the production of a new basic model of MTZ-80 tractors (with a 59 kW diesel engine), created as a result of a radical modernization of the MTZ-50 tractor. In 1976, the production of a universal tilled tractor with a front driving axle MTZ-82 was mastered. In addition, the following were created and prepared for release: steep-slope modification MTZ-82K; with reverse control - MTZ-80V and MTZ-82V; cotton-growing - MTZ-80H2; vegetable melon - MTZ-82T.

At present, MTZ is the leader in the segment of the market of wheel tractors of class 1.4 in the Russian Federation with a share of over 95% and is represented in this segment by tractors 800 and 900 series.

In 2008, the domestic manufacturer of agricultural machinery LLC VMTZ brought to the Russian market a new wheeled tractor of the 1.4 T-85 class as the most in demand for the Russian agriculture when processing agricultural land ranging from 15 to 50 hectares. The manufacturer has positioned this tractor as a functionally universal, having in its traction class 1.4 high performance and good technical characteristics.

Other innovations in the same segment were presented by KAMAZ Inc. - CMAX 85 and CX 105. They have powerful and economical imported engines IVECO BetaPower.

The equipment of foreign manufacturers is also represented in the market segment of traction class 1.4. So, John Deere in Russia offers its customers wheeled tractors of the 5020, 6020 and 6030 series. AGCO Corporation is represented in the segment by the brands Massey Fergusson (MF 3400, MF 3600, MF 4400) and Fendt (200 V / F / P / S) . Same Deutz Fahr is represented by Lamborghini, Deutz Fahr (Agrofarm series), Same brands (Silver series). In this market segment, there are Chinese manufacturers Shandong Foton Lovo Heavy Textures Co. Ltd, YTO Group Corporation, Changzhou Dongfeng Agricultura Machinery Group Co., LTD.

Tractors traction class 2.

Tractors of a class 2 are also universal-tilled and are intended for the cultivation and harvesting of sugar beet, potatoes and other low-stem row crops, as well as for performing general-purpose works.
  ON "MTZ" produces wheel tractor traction class 2 "Belarus-1221" and its modifications with the wheel formula 4K4a and engine power 130 hp. The tractor is designed to perform various agricultural work with mounted, semi-mounted and trailed machines and implements. It can be used in forestry and utilities, construction, industry. The tractor is adapted for work in various soil-climatic zones and on all kinds of soil.
  In the market segment of wheeled tractors of traction class 2, foreign manufacturers of agricultural equipment are also represented. So, John Deere on the Russian market is represented by tractors series JD 6020; Case New Holland - T6000, Case IH MXM, TM; AGCO - Massey Fergusson (MF 5400), Fendt (400 Vario), etc.

Tractors traction class 3.

Tractors of a class 3 are tractors of general purpose and are intended for performance of energy-intensive agricultural work: plowing, continuous cultivation, harrowing, sowing and harvesting of grain and industrial crops as part of high-performance wide-grip and combined units. The main supplier of wheeled tractors of traction class 3 is OJSC Kharkiv Tractor Plant (OJSC KhTZ), and one of the most popular models is the KhTZ-150K. The XTZ-17221 tractor differs only in a cabin and tire standard size. The tractor carrier system consists of front and rear half-frames with a mutual angle of rotation along the vertical hinge to the left and to the right by 30 o and on the horizontal - up and down by 15 o. Wheel formula of a tractor 4K4b.

Uralvagonzavod Research and Production Corporation OJSC developed a general-purpose tractor of the classic layout RTM-160. It has a diesel four-stroke six-cylinder engine of Yaroslavl production YMZ-236D2 with a power of 160 hp, the tractor has 16 speeds forward and 8 back.

In 2004, ZAO Agrotechmash, together with ATM United Technologies GmbH (Germany), launched the production of wheeled tractors of the classic layout ATM 3180 in St. Petersburg. In 2008, the production of tractors was moved to Tambov. ATM 3180 is made from imported components.

In the segment of wheeled tractors of traction class 3, KAMAZ brought to the market two tractors of the classic layout ХТХ 185 and ХТХ-215, they are equipped with imported IVECO BetaPower and Cummins QSB engines, respectively, whose maximum power reaches 198 hp (model ХТХ 185) and 220 hp (HTX-215).

MTZ also produces wheeled tractors of class 3. These are Belarus 1523 and its modifications. “Belarus-1523” is equipped with a 6-cylinder in-line diesel engine with a power of 114 kW (155 hp) with turbocharging.

One of the main foreign manufacturers present in this segment is Case New Holland with a series of T 7000 tractors (main models T7040, T7050, T7120, T7130, T7220, T7230) and selected models Puma 165, MX 200, MXM 190, TM 1754 WD and etc.

John Deere imported tractors of the following models into Russia: JD 4640, JD 4650, JD 6620, JD 6620 SE, JD 6630, JD 6930, JD 7430, JD 7710, JD 7810, JD 7820, JD 7820 TLS, JD 8100.

AGCO Corporation in the Russian market was represented by Valtra brands (main models: Valtra N 141H, Valtra T 161, Valtra T 161C, Valtra T 170, Valtra Valmet 8550), Massey Fergusson (main models: MF 6497, MF 6499, MF-680) and Fendt with the Favorit 716 Vario TMS.

The Same Deutz Fahr concern supplied wheeled tractors of the Agrotron series (Agrotron 1160, Agrotron 150.7, Agrotron 163) and Lamborghini R 1506 to the Russian market.

Tractors traction classes 4 and 5.

Wheeled tractors with nominal traction force from 36.0 kN to 54.0 kN correspond to traction classes 4 and 5. One of the main suppliers of tractors of these classes is ZAO Petersburg Tractor Plant (ZAO PTZ). Since 1962, K-700 tractors (Kirovets) have been manufactured at this plant, since 1975, K-701, and since 2000, modern, energy-efficient, economical wheeled tractors K-744 and its modifications. In the basic configuration, the K-744 is equipped with the YaMZ-238ND5 engine (300 hp), and the tractor's hydraulic system has a gear oil pump of constant performance with a Bosch four-section hydraulic distributor (for 3 pairs of terminals) for connecting agricultural machines and implements. Other possible configuration options allow the K-744 tractor to be equipped with a Mercedes OM-457LA engine (354 hp), an oil pump with an adjustable flow rate of Danfoss hydraulic fluid, and a Bosch five-section hydraulic distributor (for 4 pairs of terminals) for agricultural units.

In 2005, CJSC Agrotechmash introduced a new series of wheeled tractors of 5 K 5000 ATM class, and in 2007 the serial production of these tractors under the TERRION brand (280 hp) was launched. ATM 5280 is composed of imported components and assemblies. Thus, the tractor is equipped with a Deutz diesel engine (Germany) with water cooling BF 6M 1013 FC with a rated power of 270 hp, ZF transmission (Germany), Carraro front axle (Italy) and Bosch hydraulics (Germany).

In the segment of wheel tractors of traction class 4, MTZ produces Belarus-2022, where, unlike Belarus-1523, a more powerful diesel engine of 210 hp is installed. Hydraulic steering provides ease and simplicity to control the tractor when performing any work. The Bosch electro-hydraulic system provides a power, positional and mixed method of automatic control during general-purpose works. The tractor is provided with locking the differential of the rear wheels with automatic shutdown when the front wheels turn to an angle of more than 130 and forced locking.

ON MTZ in the market of wheeled tractors of traction class 5 produces an energy-efficient Belarus-3022 tractor and its modifications, which are equipped with diesel engines manufactured by Detroit Diese-Corporation S40E 8.7LTA with a capacity of 300 hp. and Deutz BF06M1013FC capacity of 303 hp The tractor has a universal hydraulic system with joystick control based on an axial-plunger variable pump from Bosch-Rexroth with a five-section distributor and electro-hydraulic control with the ability to program hydraulic system functions (EHS), an electro-hydraulic regulator for controlling the front and rear hitch.

In 2007, Rostselmash acquired 80% of the shares of Buhler Industries Inc, the world's largest producer of energy-efficient tractors sold under the Versatile trademark. In the class 4, the Buhler supplies the market with a series of general-purpose tractors of the classic Genesis layout with a wide power range up to 278 hp. All models are equipped with economical engines Constant Power Plus with a displacement of 7.5 l., An automatic Powershift gearbox, which has 18 forward and 9 reverse gears and electrically controlled hydraulics with an optional HydraFlow®Plus system with a capacity of 208 l / min.

In the class 5, Buhler manufactures the 2000 Series general purpose tractors with articulated semi-trailers. The 2000 series is represented by two models: 335 hp and 375 hp, is completed with the power unit Cummins QSM 11 series (volume 10.8 l). These engines have an in-line arrangement of 6 cylinders, 24 valves, turbocharging and charge air cooling. Manual transmission QuadshiftR III 12x4 is included as standard. The flexibility of connecting frames and steering gears allows you to change the inclination of the frames by 15 ° up / down, providing a total stroke of 30 °. Tractors of the Genesis series (models 2210, 2145) and 2000 series (models 2335, 2375) were imported to the Russian market.

Other foreign manufacturers of agricultural tractors of traction classes 4 and 5, which presented their products in Russia, are: Case New Holland with a series of T 8000, STX, TG and Magnum; John Deere with the JD 8030, JD 8050 series; AGCO Corporation is represented by the brands Valtra (model T 191 and S 280), Massey Fergusson (models MF 8170, MF 8270, MF 8470, MF 8480), Fendt (models 718 Vario, 920, Favorit 930 Vario TMS, Favorit 936 Vario TMS); CLAAS is represented by tractors from the Ares, Atles, Axion and Xerion series; Same Deutz-Fahr is represented by the Lamborghini brand (models R7 and R8), Same-Diamond 265 and Agrotron 215.

Tractors of a class 6 and above.

Today in the territory of the CIS countries there is no production of high-energy wheel tractors of traction class 6 and above. Foreign transnational corporations specialize in the production of such tractors, such as John Deere, Case New Holland, AGCO and Buhler Industries Inc..

In 1996, John Deere began serial production of high-performance wheeled tractors of the JD 9000 series with an engine capacity of up to 13.5 liters and a capacity from 289 to 405 kW. The main models imported into the territory of Russia are JD 9420 RII, JD 9430, JD 9520 RII, JD 9530, JD 9620, JD 9630.

Case New Holland (CNH) Division Case IH manufactures high-energy-rich STX Steiger wheeled tractors with engines ranging from 380 to 530 hp. and engine capacity up to 15 liters (model STX 530), which provides a stock of torque up to 43% and power up to 50 hp The STX380, STX430 models are equipped with Case IH engines, while the STX480 and STX530 models are equipped with Cummins engines. All models can be equipped with the AgGPS®EZ-Steer® automanagement system, GPS navigation system, which offers precise control and accuracy up to ± 2 cm. Another division of CNH - New Holland manufactures heavy tractors with a T 9000 articulated frame. they are installed turbo diesel 6-cylinder in-line engines manufactured by New Holland (Cursor, displacement - 12.9 liters on models T 9020, T 9030, T 9040, T 9050) and Cummins (QSX 15, displacement - 15 liters on models T9060) . All models have an automatic transmission with the number of gears 16x2.

The Challenger, part of the AGCO Corporation, manufactures the all-wheel drive tractor with articulated frame MT900B series. The MT900B series line consists of four models: MT945B with an engine power of 430 hp. (321 kW), MT955B - 460 hp (343 kW), MT965B - 510 hp (380 kW), MT975B - 570 hp (425 kW). The MT945B and MT955B tractors are equipped with Caterpillar C15 engines using ACERT ™ technology, while the MT965B and MT975B tractors are equipped with Caterpillar C18 ACERT engines. The MT900B Series tractor comes standard with a Powershift 16Fx4R transmission from Catterpillar with 8 gears in a working speed range of 6.5-15.0 km / h and a transport speed of up to 39.7 km / h.

Buhler Industries Inc has developed the High Horsepower Tractor (HHT) series of high-performance all-wheel-drive tractors. HHTs are available in 435, 485 and 535 hp versions. All tractors are equipped with Cummins QSX engines with in-line arrangement of cylinders. Transmission equipment: mechanical QuadshiftR III 12x4 or automatic Powershift from Caterpillar. The tractors HHT 435, HHT 485 and HHT 535 were imported into the Russian Federation.

"Belarus-132N"

DONG FENG DF-254 (4WD)

LTZ-60AB-10

Case New Holland - T6000

John Deere JD 8100

Case New Holland STX Steiger

On the territory of the former USSR, Russia and the CIS countries, tractors are classified depending on their technical characteristics, where the traction class plays an important role. It is about her and will be discussed in this article.

The idea to write an article on this topic arose after a combined table was found in the Soviet Encyclopedia showing traction classes of equipment produced in the Soviet Union. At first glance, the table was not easy to understand, besides the information presented in the table is outdated, and for updating the information described in the article, we had to use a number of modern written sources on this topic and catalogs of modern domestic equipment.

The history of the tractor industry

In the process of development of tractor equipment, not only the energy carriers used in power plants (steam, liquefied gas, oil, kerosene, diesel, gasoline) changed. Power plants themselves improved from massive to ultra compact, from simple to energy efficient.

The history of the domestic tractor industry began in pre-revolutionary times. It continued in the revolutionary. During the high pace of national construction, the development of virgin soil, in difficult war times, the production of both serial equipment and promising prototypes did not stop. To automate agricultural processes, construction and industry tasks, it is necessary to cover not only the whole range of nominal traction class, but also various regional requirements, wheelbase requirements, quality requirements, and the scope of application of the unit.

In this regard, the designers of the past were faced with challenging tasks that are still relevant today. One of the rational solutions to this problem was unification, which resulted in the emergence in the domestic industry of basic traction class models and its modifications for various tasks.

Thus, problems were solved with the provision of a set of spare parts and attachments, ease of mastering equipment by personnel. One of the positive aspects of domestic technology was the documentation, understandable for development.

Definition of nominal traction class

The concept of nominal traction class, calculated in accordance with GOST 27021-86, is an exhaustive, detailed characteristic, showing not only the efficiency of the power unit, but also how effective the design of the machine itself with the available operating mass. It is calculated on the basis of normal conditions (average density stubble, soil moisture - 8-18%), in the zone of maximum efficiency and equal to the maximum force developed by the unit.

The table below shows the correspondence of classes of agricultural machinery calculated according to GOST 27021-86 to the classes used for separation according to the classes of equipment according to the ISO standard (ISO 730 \\ 1-77, 730 \\ 2-79, 730 \\ 3-82).

Traction class in the standard GOST 27021-86 Below 0.6 0.6; 0.9 0.9; 1.4; 2 2; 3; 4 5; 6; 8
  The corresponding class in standards ISO 730 \\ 1-77, 730 \\ 2-79, 730 \\ 3-82 1 1 2 3 4

Thus, in the description of foreign equipment, you can see a record of traction class as (5-8), which will actually correspond to the 4th class of traction in the ISO standard for agricultural equipment. An example of such a record in the domestic technology can serve as a tractor with a wheelbase PTZ (K-744R1-P4). It became possible with the use of different engines and extended wheelbase on the third and fourth revision of the device.

Table and description of individual traction classes of agricultural machinery

To meet the needs of agriculture machinery is produced in ten traction classes. Recently, it has become relevant to use in the description of tractor equipment not only the rated traction class, but also the engine power. The chart below shows the classification of agricultural aggregates according to the above approach.

The diagram shows the wheelbase parameter:

• 4k2 - means the total presence of 4 wheels, two of which are leading
• 4k4a - means four-wheel drive with a pair of small front wheels and large rear
• 4k4b - the same, but with the same size wheels

Technique with rated 0,2 class

This class includes motorblocks and mini tractors. Mainly used in agriculture in small areas, mainly for work with the aim of breeding new varieties and working out new methods of tillage. Farmers are widely used in various areas, depending on the available attachments. Applicable in livestock farms. They are used by a number of public utilities and at small construction.

HTZ (T-012), Gomselmash (AMZHK-8), Minsk Tractor Works (MTZ-082,), Altai Tractor Works (MT-15), Kurgan Machine-Building Plant (), ChTZ (T-0, 2).

Thrust class 0.6

Tractors belonging to this class are used directly in agriculture and are involved in various technological processes:

• preparing the soil for sowing cultural crops, sowing
• planting vegetables and root crops
• planting ornamental and fruitful trees and shrubs
• care for crops, are involved in the process of caring for shrubs and trees
• harvesting
• preparation of feed for livestock breeders
• transport, utility work, can lead a variety of stationary units

This class includes AGROMASH (30TK), MTZ () HTZ (HTZ-2511, T-30A,) VTZ (VTZ-2032A,)

Technique traction class 0.9

The range of possible jobs and regions in this class is slightly wider. Both fully driven machines appear, as well as machines according to the 4x2 formula, models with low ground clearance for work in mountain areas have been developed.

It becomes advisable to install gearboxes with a wide range of switchable speeds. The main application of this class was:

• plowing light soils
• land preparation for sowing
• interrow hilling
• pest control (crop spraying)
• harvest
• harvesting hay
• transport works

This class includes MTZ (Belarus-422), VTZ (, VTZ-45AT) Agromash (60 TK, 50 TK), TTZ (T-28H4M), LTZ (T-40M, LTZ-60AB-10, LTZ-55A , LTZ-55AN)

1.4 class tractors

From this class it becomes possible to use equipment in difficult road conditions. Representatives of this class are most effective in carrying out the above works of the previous classes and, given their exceptional properties, it became possible to use them for:

• plowing light and medium soils
• cultivations
• harrowing
• for soil fertilizer

This class includes AGROMASH (85TK), MTZ (, MTZ-82, Belarus-923, Belarus 900 series) YuMZ-6AKM, YuMZ-6DM, LTZ-60AB,

Traction class tractors 2

Tracked tractors began to appear from this class. This is connected with the power of the units and with the conditions in which it is necessary to carry out the tasks. This class includes both garden tractors and general and special purpose agricultural tractors, portal tractors. There is an idea of ​​manufacturing integral tractors. By the above types of work added work on:

• vineyard care
• beet work
• gardening
• work in mountain areas

This class includes AGROMASH (160 TK), LTZ (, LTZ-95), HTZ (T-90S), MTZ (, Belarus 1220th, SHU-356) KTZ (T-54, T-70,)

Tractor 3rd - 5th traction class

In this class, it becomes possible to use the 6k6 wheelbase applicable up to grade 5 inclusive. From the third class, swamp tracked vehicles appeared. Such highly productive machines are also used for general agricultural purposes on large tracts of land of varying degrees of complexity.

3rd class AGROMASH (TG150, 180TK, 90TG), MTZ (Belarus 1500th, MTZ

1523), KhTZ (KhTZ-150K, T-150), CJSC Agrotechmash (ATM 3180), OJSC NPK Uralvagonzavod ()
  Of the 4th ATZ (, T-4), KhTZ (KhTZ-201), MTZ (MTZ 2022, MTZ-2103, Belarus 2022)
  The 5th PTZ (, K-700), ATZ (T-501), MTZ (Belarus 3023, MTZ-3022).

Tractors of the 6th - 8th traction class

Belong to the most productive agricultural machines. They are used in the most difficult conditions and on the longest sections.

6th PTZ (K-744R2), ChTZ (), AGROMASH (Ruslan)
  7th PTZ (K-744R3)
  PTZ grade 8 (K-744R4), Rostselmash Combine Plant LLC (Versatile 535), 12x4 wheelbase on July 13, 2010 set a record for handling 417 hectares of land.

Table and description of individual traction classes of industrial equipment

Below is a chart of the classification of industrial, forestry and forestry tractors, taking into account the engine power and the calculated nominal thrust class.

A special feature of the forestry machinery is not the expediency of using for this task machinery below 0.6 class of traction, and for industrial work of tractors below class 2.

Another feature of these units is to consider the use of a fully drive wheelbase with equal wheels, or a track base. “Full-fledged” appears in the 4th traction class, this is primarily due to the severity of the work performed and, not least, to the unevenness of the loads and their various alternating sign values. Industrial and forestry tractors are used for:

• logging
• shipping
• preparation of land freed from the forest for plowing
• soil preparation for construction work
• trenching
• drilling
• laying of water supply systems, communication systems, power supply systems
• development of soil containing minerals
• technological processes in the metallurgical and chemical industries, nuclear power
• works in the municipal utilities, and to eliminate the main problems

Alttrak OJSC - Altai Tractor Plant, Volgograd Tractor Plant OJSC, Promtractor OJSC, ChTZ - Uraltrak LLC can be attributed to domestic manufacturers of this class of equipment.

Prospects and directions of domestic tractor construction

During the Soviet era, great potential was laid for the development of this field. Between the allied states different directions in this industry were divided. After the collapse of the country, many of the manufacturers and consumers of this technology were faced with the choice of further development. Many of the available developments required capital investments, and there were already operating units behind the “frontier”. In connection with the latest global trends and trends in the domestic industry, the shortage of domestic agricultural machines with a wheelbase of traction class of 4-8 was sharply actualized. The development of this very direction for the soonest satisfaction of domestic consumers looks promising in the current conditions.