✅ Model range of Altai tractors

Russian is known for its high-quality self-propelled vehicles. Ever since the Great Patriotic War, he began producing agricultural machinery, but even today it remains popular.

Each Altai tractor is a reliable, highly cross-country and durable vehicle. It can be used in any conditions, has good performance characteristics and can withstand any load.

Model range of Altai tractors

On the modern market there is a wide range of tractors from the Altai company. Each unit has proven itself to be a reliable assistant, which, thanks to the ability to use different types of attachments, is able to successfully cope with any type of agricultural work.

Among the main advantages of Altai equipment, experts include high power, cross-country ability, resistance to high loads, high quality of components used, as well as high traction force.

Nowadays, tractors from the Altai Tractor Plant are actively used not only in the agricultural industry, but also in logging, construction, and also in municipal enterprises.

Additional equipment and functionality

Various models may include a variety of types of bulldozer units, with which you can carry out work related to moving soil. They are designed to fill trenches, build embankments and move bulk building materials.

The Altai tractor carries out its main work together with the following units: plowing machines of mounted, semi-mounted, trailed type, both hydraulically and non-hydroficated. Also, tractors from the Altai plant can be used to carry out work on tillage before sowing, during sowing work, and for work in irrigated agriculture. The Altai tractor will also be useful for other work related to servicing rural areas (land reclamation, loading, etc.). The range of applications of these machines is so wide that they can be used as an excavator or equipped with a timber semi-trailer.

Tractor T-4A Altai - description of a popular model

The Altai tractor in this configuration is among the units with a traction class of 4.0. It is intended for active use together with mounted, semi-mounted, trailed machines and implements. This model is often actively used for operation in conjunction with bulldozer equipment.

The Altai Tractor enterprise equipped its model with a powerful 6-cylinder 4-stroke engine with an enlarged fuel combustion chamber and an effective liquid cooling system. To start the main engine, the design of the unit provides a starting gasoline motor, powered by an electric starter. For faster and smoother starting of the main motor, the Altai unit is equipped with a decompressor.

The model's transmission is represented by a permanent closed dry clutch, additionally equipped with a hydraulic booster. The tractor gearbox is mechanical with a built-in reversible gearbox.

The parameters of the Altai model in this configuration include:

power – 130 l. With.;
number of speeds – 8 forward/4 reverse;
ground clearance - 37.1 cm;
minimum permissible turning radius – 1.7 m;
weight – 8.87 t.

This Altaets tractor is equipped with an improved chassis, the design of which includes 2 crawler bogies and a transverse spring. For convenience during operation of the unit, it is equipped with a single cabin with a ventilation and heating system.

Lecture 2 “Altai Tractor Plant”

OJSC "Altai Tractor"

(1942–2010)

The Altai Tractor Plant was born in the harsh war year of 1942 on the basis of evacuated equipment from the Kharkov and Stalingrad tractor plants. Pre-war Rubtsovsk was a small steppe town. The war unexpectedly made its own adjustments to the life of the regional center of Altai. In February 1942, trains with equipment and evacuated workers began to arrive in Rubtsovsk. At an accelerated pace, grain warehouses were transformed into workshops: mechanical repair, iron foundry, pressing, motor, mechanical assembly, tool and others. At the same time, steel foundry and forging shops, a combined heat and power plant with a complex system of water intake structures on the Alei River were built. Before the launch of the thermal power plant, the workshops were supplied with electricity by an energy train. Intra-factory transportation of parts was carried out on horses.

August 24, 1942 is the date of birth of the plant, when the first Altai kerosene tractor of the ASKHTZ-NATI brand was assembled. So, in a short time, under the most difficult wartime conditions, the Altai Tractor Plant was built. It was the only plant in the country that produced tractors for the needs of the front and rear.

The Motherland highly appreciated the hard work of the factory workers during the war. For the successful completion of government tasks for the construction of the plant and the organization of tractor production, the Red Banner of the State Defense Committee was handed over to the ATZ team for eternal storage, a group of workers was awarded orders and medals. On the eve of 1945, the first sample of the DT-54 tractor was assembled, for the development of which the group of designers was awarded the State Prize.

By resolution of the Council of Ministers of the USSR on July 1, 1946, the Altai Tractor Plant was named after M.I. Kalinina.

The demands of peacetime put forward with great urgency the questions of further improvement of machines and increasing their reliability before tractor manufacturers. In 1952, without stopping production, the plant switched to producing DT-54 tractors. It was at that time that a powerful stream of diesel tractors came from the factory to the fields, and it was at that time that a large team of designers began to take shape. During the years of development of virgin and fallow lands, factory workers manufactured and supplied 9,630 DT-54 tractors to the workers of Siberia and Kazakhstan, which were the main arable machine for raising virgin soil. Along with agricultural machines, the plant produced the DT-55 swamp tractor.

In 1956, a decision was made to organize the production of skidders for the forestry industry at the Altai Tractor Plant. In September 1957, the first TDT-60 tractor was assembled for logging work without stopping the production of an agricultural tractor. At the World Exhibition in Brussels in 1958, the car was awarded the highest award - a 1st degree diploma and a gold Grand Prix prize.

The plant's specialists continued to work on a more powerful skidding tractor TDT-75. In May 1962, the plant staff switched to producing a new modification of the skidder - TDT-75. With the establishment of the production of skidding machines, the Altai Tractor Plant turned into one of the largest enterprises in the east of the country

In January 1965, production of the T-4 tractor with a 110 hp engine began. With. “The T-4 tractor is the brainchild of ATZ. If we mastered STZ-NATI, DT-54, TDT-60 and TDT-75 with the help of other enterprises and research institutions, the T-4 tractor was completely designed and manufactured at ATZ. “One of the modifications of the T-4 is the T tractor -4M - awarded a Gold Medal at the International Exhibition in Moscow in 1966.

On July 25, 1966, by Decree of the Presidium of the Supreme Soviet of the USSR, the plant was awarded the Order of Lenin for the successful implementation of the 7-year plan, the creation and development of production of new high-performance machines. More than eleven thousand tractor builders were awarded orders and medals, three were awarded the title Hero of Socialist Labor.

In subsequent years, the plant team constantly improves the designs of manufactured machines. Since 1970, tractor manufacturers switched to producing a more powerful T-4A agricultural tractor. On the basis of this tractor, the industrial model T-4AP2, intended for construction and road work, was developed and produced.

Since November 1971, the plant has been producing the TT-4 skidding tractor for the forestry industry. The widespread introduction of new logging technology in logging operations, based on their complete mechanization, necessitates the creation of a TT-4M skidding tractor with a single-seat cabin.

ATZ specialists constantly improved their products. In 1989, not only in the region, but also in the country, they started talking about a new generation tractor - the T-250, which was created at ATZ, passed successful tests with the American Challenger-65 tractor and was recommended for production.

In the early 90s, due to objective economic reasons, the demand for manufactured equipment fell sharply. At this time, a lot of work was done to expand the scope of applicability of tractors and create mini-tractors. The production of previously purchased components and parts has begun on its own premises.

A program of gradual transition from the T-4A tractor to the T-250 tractor is being implemented. In 1997, the T-402 tractor was put on the conveyor. In 1999, production of the T-404 tractor began in small series. The skidding tractor is the basis for 12 modifications of forestry machines produced at 8 forestry engineering plants in Siberia. Currently, Alttrak OJSC produces serially the T-4A and T-402. In small batches it produces T-404, T-250 tractors, mini-tractors upon customer request, as well as TT-4M skidders.

OKB specialists are constantly searching for technical solutions to improve existing tractors and create new models; a family of universal crawler tractors is being tested. The first samples of the new skidding machine MT-5 have been manufactured and tested, as well as on its basis a skidding machine with an MTM manipulator, a chokerless skidding machine LT-187A, and a timber loader LT-188A.

In 2006–2009, the plant went through bankruptcy proceedings. The owner of the Altai tractor plant, Novosibirsk RATM-Holding, has undertaken to fully repay the wage arrears to the company’s employees.

From 2009 to the present, tractor production at the Altai plant has not been restored.

Alttrak is the city-forming enterprise of Rubtsovsk. The plant still employs several thousand city residents; the former Alttraka thermal power plant provides heat and hot water to two-thirds of the city residents.

There is information that the owner decided to resume production by repurposing the tractor plant to produce welding machines and new models of agricultural equipment.

Crawler agricultural tractor T-4A.01

T-4A.01 general-purpose tracked agricultural tractors of class 4 are designed to work in combination with mounted, semi-mounted and trailed hydraulically powered agricultural machines and implements corresponding to the traction class of tractors, as well as with bulldozer equipment of the OBGN-4 type. The technical capabilities of these machines, compared to wheeled tractors, make it possible to work effectively in early spring on waterlogged soils, and in winter on snow retention.

In order to improve the operator’s working conditions, the tractors are equipped with a frame, thermally and noise-insulated cabin with a central location of the control station, improved visibility with a ventilation unit of increased productivity. Direct electric starting of the engine from the operator's workplace.

Crawler agricultural tractor T-402.01

T-402.01 general-purpose tracked agricultural tractors of class 4 are designed to work in conjunction with mounted, semi-mounted and trailed hydraulically powered agricultural machines and implements corresponding to the traction class of tractors, as well as with bulldozer equipment of the OBGN-4 type. The technical capabilities of these machines, compared to wheeled tractors, make it possible to work effectively in early spring on waterlogged soils, and in winter on snow retention.

The modified T-402.01 model is equipped with a more powerful D-461 turbocharged engine with an increased torque reserve factor, a reinforced transmission with an increased service life and an optimal speed range, which allows increasing labor productivity when performing basic energy-intensive agricultural work by an average of 40% compared to the basic one model with lower (on average 21%) fuel consumption per hectare. Designed for work in agriculture in a unit with mounted, semi-mounted and trailed hydraulic implements. Using a tractor, you can carry out deep plowing for industrial crops and cultivate land with high resistivity.

Agricultural tractor T-250

The tracked, energy-rich agricultural tractor of traction class 5 is designed to perform the following work in conjunction with mounted, semi-mounted and trailed hydraulic machines: plowing of medium and heavy soils, deep moldless loosening, planting plowing, chisel cultivation, pre-sowing treatment, cultivation, stubble peeling, soil disking and transport works Low specific pressure on the soil (about 2 times lower than that of wheeled machines of the same traction class) eliminates increased soil compaction and reduces damage to the fertile layer, which contributes to increased productivity.

High traction and traction properties, allowing work on waterlogged soils, ensure early access to the fields and performance of agricultural work in optimal agrotechnical terms, which is the key to high yields.

Increased productivity and low fuel consumption per unit of work performed reduce the cost of producing agricultural products and make it possible to use a smaller fleet of tractors.

It is aggregated with a train of 87 agricultural machines (55 borrowed from the K-700, K-701M tractors) Operated all year round in macroclimatic regions with a temperate climate.

Design features of the T-250 tractor

Individual torsion bar suspension of the track rollers of the chassis system and a caterpillar track with a rubber-metal joint provide high ride comfort, cross-country ability, traction efficiency and reduced noise levels. The service life of the caterpillar is 5000 hours, while in operation there is practically no need to adjust its tension.

A mechanical, range transmission with on-the-fly shifting via hydraulic clutches ensures high tractor performance and fuel efficiency with minimal operator fatigue. To operate at technological speeds, a hydrostatic stepless creeper is installed.

The rear axle with disc, oil-operated steering couplings and hydraulically controlled brakes is capable of working out the full life of the tractor without adjustment or replacement.

A single, centrally located cabin with a safety cage, thermally and noise-insulated, equipped with a microclimate normalization system (with filtration, conditioning and heating of the air supplied to the cabin during the cold period), has an opening side window, electric wipers for the front and rear windows, an original instrument panel, rich in registration information devices, ensures safe and comfortable working conditions.

Remote control of the tractor by double-acting cables with an adjustable reversible control post with controls located within easy reach ensures ease of control and minimal effort. The pneumatic system ensures the operation of trailer brakes, inflation of agricultural vehicle tires, and maintenance of components.

Crawler agricultural tractor T-404

The T-404 general-purpose crawler agricultural tractor, traction class 4-5, is designed for work in agriculture in combination with mounted, semi-mounted and trailed agricultural machines and implements. Capable of performing the entire range of energy-intensive agricultural work, deep plowing (up to 40 cm) for industrial crops and cultivating land with high resistivity in fields of any area.

The power unit is a six-cylinder diesel engine, which is started by an electric starter from the operator’s workplace. The chassis system with individual torsion bar suspension of the road wheels and a caterpillar track with a rubber-metal joint ensures smooth running of the tractor. To perform basic work at high speeds, with optimal engine load, the tractor is equipped with a transmission with a mechanical eight-speed gearbox.

The frame cabin is thermally and noise-insulated with a ventilation and heating system. The operator's seat is sprung with armrests, adjustable according to the height and weight of the operator, as well as the angle of the backrest. The tractor is equipped with a towing hitch, PTO, hydraulic system and rear linkage with replaceable upper and lower link heads for mounting with implements of traction class 3-5. The increase in labor productivity in the main types of agricultural work is on average 40% compared to the T-4A tractor.

Tractor T-4A with bulldozer equipment OBGN-4

Bulldozer equipment with a fixed blade is intended for excavation and leveling work on soils of categories 1 and 2 in agriculture and rural construction.

Tractor T-4AP2.01 with bulldozer equipment OBGN-4M

The T-4AP2.01 crawler tractor of traction class 4 is an industrial modification of the T-4A.01 agricultural tractor. It is designed to work in conjunction with road construction equipment on soils of categories 1-2, as well as with trailed agricultural machines from the T-4A.01 tractor train, which do not require drive from the power take-off shaft. Produced complete with bulldozer equipment OBGN-4M, ripper RN-4, mounted loader PN-4.

Bulldozer equipment with a fixed blade is intended for excavation and leveling work on soils of categories 1 and 2 in agriculture, as well as for moving non-metallic building materials and clearing roads of snow.

Tractor T-4A2P.01 with bulldozer equipment and ripper RN-4

The ripper is designed for layer-by-layer loosening of soils of 3-4 categories during the construction and repair of roads.

Tractor T-4AP2.01 with mounted loader PN-4

The mounted loader is designed for loading soil, sand and other bulk materials onto various vehicles.

Skidding tractor TT-4M and TT-4M-01 (chassis)

The TT-4M crawler tractor with skidding equipment (reverse winch and hydraulic loading shield) is designed for transporting large and medium-sized timber in a semi-submerged state and stacking it. Designed to work in areas with temperate and tropical climates. The tractor is designed with a front-mounted cab, which provides good visibility, and behind the engine there is ample space for mounting various technological equipment. The modular cabin with a built-in safety cage is sealed, thermally sound and vibration insulated, has high-strength glass, is equipped with a swivel seat, an additional rear control station, and an effective heating and ventilation system.

The TT-4M-01 version of the tractor is intended for use as a traction, transport and power chassis of machines for various purposes: felling and skidding, felling and bunching, chokerless skidding, delimbing, loading, earthmoving, geological exploration, road construction, forestry and others, used primarily in off-road and rough terrain conditions.

The tractor can be additionally equipped with a large hydraulic tank and a rear power take-off shaft. The tractor provides the ability to independently extract power from the toe of the crankshaft (up to 79.3 kW). To increase the efficiency of use in specific operating conditions, instead of the standard 550 mm wide track, it can be equipped with 500 and 600 mm wide tracks. The tractor can be additionally equipped with a pusher and a bulldozer, a wedge-rooter, a lifter-collector, a ripper, and a rear linkage.

Chokerless skidding machine LP-18K

LP-18K is a chokerless skidding machine designed for collecting fallen trees (logs) and skidding them to a timber loading point, as well as for leveling the butts of the logs and compacting the stack, leveling skidding trails and loading areas.

Skidding tractor with wedge-rooting equipment TT-4M-17

The skidding tractor with wedge-rooting equipment TT-4M-17 is designed for transporting large and medium-sized timber in a semi-submerged state from the cutting area, placing it in stacks, as well as for clearing logging residues, dead wood, fragments of stem wood and stumps (with a diameter of up to 40 cm ) strips 2.8 m wide for planting forest crops and creating firebreaks. It can be used to clear roads and other objects from snow, debris, etc., and lay winter roads through virgin snow.

Small-sized tractor MT-16

The small-sized tractor MT-16 is designed for mechanization of labor-intensive work on personal and public farms, as well as for transporting goods on public roads. The tractor can be mounted with trailed and mounted implements for tractors of traction class 0.2...0.4.

Small-sized tractor MT-10

The small-sized MT-10 tractor is designed for mechanization of labor-intensive work on personal and public farms, as well as for transporting goods on public roads. The tractor can be mounted with trailed and mounted implements for tractors of traction class 0.2. The universal mower is installed on the MT-10 tractor and is intended for decorative pruning of bushes and haymaking.

The self-propelled mini-chassis SMSH-8 is used as a transport and energy base for machines and units intended for mechanization of work in all areas of agriculture, industry, housing construction and public utilities.

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Tractors Altai

Russian is known for its high-quality self-propelled vehicles. Ever since the Great Patriotic War, he began producing agricultural machinery, but even today it remains popular.

Each Altai tractor is a reliable, highly cross-country and durable vehicle. It can be used in any conditions, has good performance characteristics and can withstand any load.

Agricultural utopia

In 1971, the ninth five-year plan began. In the wake of the national economic boom of previous years, the authorities sought to further increase the rate of economic growth. Collective and state farms were tasked with significantly increasing the production of grain, potatoes, vegetables and other crops. Agricultural labor productivity was supposed to increase almost 1.5 times, while production costs would decrease.

Such large-scale tasks required better technical equipment. Mechanical engineering has become an important area of industrial development. It was planned to significantly increase the volume of production and supply of agricultural machinery. Over the five-year period, collective and state farms were to receive about 1.7 million tractors (including 705 thousand arable) and 1.5 million trailers for them, 1.1 million trucks, 87 thousand excavators, 82 thousand bulldozers, 42 ,5 thousand scrapers, as well as 541 thousand grain, 230 thousand silage harvesters and 60 thousand beet harvesters.

However, the problems with agricultural machinery were not limited to their small numbers. Old tractor models no longer met the requirements of the new five-year plan. The developers were faced with the task of creating machines of greater power and productivity that could process fields at high speeds. With new tractors, combined units were used that were capable of performing several operations in one pass. One of these new models was the T-4A.

Features of Altai tractors

Robust and reliable design
Versatility - units can be used in any area
Possibility of using attachments

High cross-country ability, full adaptation to domestic working conditions
Affordable price.

The Altai tractor range is a productive piece of equipment that can be used in different areas of life. The company produces crawler tractors, models with a fixed shaft, as well as universal units. All such tractors can be used for working in the field, moving goods, clearing roads or construction, filling holes and trenches. The equipment is additionally equipped with a ripper, loader and other attachments.

Practical disadvantages

Despite the original engineering solutions, awarded with many awards, and widespread use in the virgin regions of Siberia and Kazakhstan, the T-4 family of tractors was not particularly loved by collective farmers. Although their powerful traction made it possible to use them for plowing heavy irrigated soils, the design of the tractor had significant drawbacks.

The main one was the semi-rigid suspension. Firstly, contrary to the intentions of the developers, it did not allow the tractor to develop high speed. This made it, in fact, suitable only for arable work; in the summer-autumn period, the T-4A was idle. Competitive models T-74 and T-150, produced by the Kharkov Tractor Plant, developed much greater speed and were widely used for harvesting and other summer work.

Secondly, in winter, when plowing frozen soil, the suspension caused severe shaking. Combined with the loud noise from the engine, this caused significant inconvenience to the driver and even posed a health hazard. Another major drawback was the difficulty of the tractor to repair and maintain. For example, to replace the friction belts of the rotary mechanism, which wore out quite quickly, it was necessary to remove the fuel tank. The tractor tracks were also not reliable.

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Tractor T4 Altai

The tracked unit belongs to models whose traction class is 4. It is equipped with mounted, trailed, and semi-mounted equipment. It can also perform the functions of a bulldozer.

The peculiarity of the model is its powerful 6-cylinder engine, which received an enlarged fuel combustion tank and a sophisticated liquid cooling system. An electric starter is provided, which makes starting the engine much easier.

Tracked vehicles

The production of agricultural machinery in Russia is gaining momentum. Proof of this is the powerful tracked units released on them. The enterprise was created on the basis of the Soviet tractor production, which has been producing agricultural machinery and skidding tractors since the war.

Today, the range of Altai tractors is replenished not only with new agricultural machines, but also with productive quarry equipment. The enterprise produces several models of crawler bulldozers of traction class 3-4. Altai machines with a fixed blade can be used both in agriculture and in construction. For moving building materials, clearing roads, for leveling terrain, for filling trenches and holes. In addition to the bulldozer hitch, some models of crawler tractors are equipped with a mounted loader, a ripper and can work with a timber semi-trailer.

Capabilities of the Altai-130 universal tractor

Among the latest successes of the tractor plant is the universal model Altai-130 of 4 traction class, released in 2015. Altai tracked tractor with 140 hp power. equipped with a bulldozer hitch and a powerful traction 6-cylinder DEUTZ engine.

The main advantages of this technique include:

identical tractor efficiency on the farm, in the field, in construction, regardless of the time of year and weather conditions;
economical but very reliable German-made engine;
the shortest possible maintenance time for Altai-130;
sophisticated hydraulic rotating system;
specific fuel consumption is less than 245 g/kWh;
self-cooling brake system;
stability of the equipment and the ability to work on different soils (due to the significant width of the tracks 390 mm);
ergonomic cabin and comfortable workplace for the operator.

T-4

The basic chassis of the T-4 Altaets was used for the manufacture of 4 modifications.

Their distinctive features:

version C1, equipped with a full set of hydraulic linkage and 2 additional remote cylinders;
modification C2, which differed from C1 in the absence of attachments, main and remote cylinders;
option C3, which did not have hydraulics and a linkage mechanism;
model C4, identical in hydraulics to C1, but without 2 remote cylinders.

The weight of the tractor depends on the configuration and ranges from 7150 to 7600 kg. The ground pressure for all modifications is assumed to be the same and amounts to 0.35 kg/cm². By separate order, a single-speed rear drive shaft of additional units (PTO) of an independent circuit was installed, an autonomous engine warm-up system and a heating device for the operator's cabin were installed.

The vehicle was equipped with a 4-stroke diesel engine model AM-01.

The engine has an in-line arrangement of 6 cylinders and a forced liquid cooling system. The engine is equipped with an atmospheric pressure air supply system and develops a power of 110 hp. With. with a cylinder volume of 11150 cm³. A special feature of the engine is its low shaft speed. Maximum power develops at 1600 rpm, and peak torque occurs at 1100-1300 rpm.

To start a diesel engine, a separate gasoline unit of the PD-10U type, equipped with liquid cooling, is used. The cylinder jacket of the starting motor is connected to a common cooling system. The gasoline engine is started using an electric starter. In practice, starting is done manually by turning the shaft using a starting cord. The use of a gasoline starter eliminated the need for bulky batteries and ensured diesel starting in low temperatures.

The technical characteristics of the engine required the use of a reinforced clutch equipped with 2 discs. The clutch is connected by a driveshaft to the reverse guitar. The gearbox is 4-speed, equipped with cylindrical gears with straight teeth. The use of a reverse guitar made it possible to increase the number of forward gears by 2 times and obtain 4 reverse speeds. The gearbox and guitar crankcases have a common lubrication system.

The rear axle includes a main pair equipped with bevel gears, a planetary gear for turning, 2 sun gear brake bands and 2 brakes for stopping the machine. The drive of the rotation band brakes is equipped with a hydraulic booster. The drive wheels are mounted on final drives equipped with spur gears.

The tractor is based on a frame riveted from 2 box-section spars. There are brackets on the side members that are connected to the rear axle housing. The front part of the side members is connected by a cast steel beam. The car's suspension is semi-rigid, equipped with a transverse spring mounted on a balancer. The spring is made up of 4 sheets of different lengths. The ends of the springs are freely laid on the shock absorbers of the side crawler bogies.

The trolley consists of a frame, on the lower surface of which 6 support rollers are installed. A shock absorber is installed in the front part of the frame. To support the upper branch of the caterpillar, 2 support rollers are used. The front wheel is used to guide and tension the track. The rear part of the frame is mounted on the drive axle shaft through bearing supports. The track consists of 43 steel links connected by pins that are pressed into the outer parts of the links. Only 1 finger is not pressed in, which is used to disconnect the caterpillar.