Many farmers have asked questions in recent years: which tractor is better to buy: the time-tested MTZ-82, or the more modern Minsk model? What is good about this tractor, which is a more “advanced” modification of the 82nd model, and is it worth overpaying for it? In this article you can find not only the answer to these pressing questions, but also a detailed description of the technical characteristics and features of the MTZ-920 tractor.
Minsk Tractor Plant is one of the few large machine-building enterprises that not only survived the collapse of the Soviet Union, but also repeatedly increased its production potential, product range and sales, and trade expansion to other countries. MTZ was the first of the former Soviet enterprises to certify its products according to European Union standards, and in May 2000 it received a set of international quality certificates “ISO-9001”. Since the same year, the “Belarus” brand has been used on tractors (in Soviet times, “Belarus”).
One of the best-selling MTZ tractors
Every tenth wheeled tractor coming off the assembly line on our planet is an MTZ tractor. Today, the current MTZ catalog presents to potential consumers two dozen basic models of a wide variety of tractors, wheeled and tracked, from mini-format to powerful, energy-intensive 10th traction class. We can say that the company strives to cover absolutely all market segments, and this task is being successfully accomplished.
If you look at the sales statistics, it will become obvious that the most popular in the domestic market are still universal tractors of the 1.4 traction class: “MTZ-82” (and its variant “MTZ-82.1”), which have become the modern incarnation of the legendary “MTZ -80 Belarus.” Along with the 82nd Belarus, another modern model, the MTZ-920, is also gaining popularity.
Features and scope of application
"MTZ-920" is a universal row-crop wheeled tractor of traction class 1.4, with four-wheel drive. This model is considered a modernized version of Minsky’s “bestseller”, its further development. Both models use the same D-243 diesel engine, without turbocharging, the other design features of which are also identical. With the exception of literally two or three.
Firstly, a new synchronized gearbox is installed on the MTZ-920. It promotes smoother movement of the tractor, without jerking and characteristic sounds when changing gears. In addition, this model has an additional hydraulic circuit for the rear linkage, and the capacity of the hydraulic system tank has been increased. The tires used are slightly wider than on the MTZ-82. The MTZ-920 costs only 30-50 thousand more than the 82nd.
Moreover, in its design, “Belarus-920” has a lot in common with many other tractors of the Belarusian manufacturer, in particular, with “MTZ-892”, “MTZ-952” and so on. They differ from each other in terms of engine power parameters, the presence or absence of turbocharging. “MTZ-920” has found its niche in the market largely due to the fact that the diesel engine installed on it is quite economical, both in terms of fuel consumption and the cost of its maintenance and repairs. A significant plus is the relatively low cost of the tractor, thanks to which it pays for itself in a fairly short service life.
The main element of the MTZ-920 tractor is, of course, agriculture. Like its predecessor, it is suitable for use in any agricultural work: all types of soil cultivation; sowing, processing and harvesting; cargo transportation; as a drive for a wide range of special stationary equipment.
Thanks to its versatility; solid hanging capacity; Possibility of aggregation with a huge number of trailed, mounted and semi-mounted equipment; ease of use for various types of excavation work and cleaning the territory, this model of the Belarus tractor has found favor not only with farmers, but also in municipal, forestry, construction and industrial farms. And not only in the vastness of the former Union, but also in European countries!
Possibilities of aggregation "MTZ-920"
The options for using the Belarus-920 with a variety of trailed, semi-trailer and mounted equipment are striking in their impressive number. In addition to the standard three-furrow plows “PKMP-3-40R” and “Plow PLN-3-35P”, the tractor can be used with mounted plows: driven plowing and reversible plows for smooth plowing.
With mounted, disc, garden and heavy harrows; with cultivators for continuous tillage. With combined units: chisel and tillage. With seeders of various designs: precision seeding; pneumatic; stubble; with an additional option for applying fertilizer; dotted seeding. With a variety of mowers: trailed conditioner; mounted with chopper; segmental finger; disk-mounted or semi-trailer. With units and diffusers for fertilizing soils (applying liquid organic and mineral fertilizers). With square or round balers, rakes, tedders, silage and haylage packers, bale wrappers. With snow blowers, KUNs, hay haulers, loaders of all types. Naturally, with tractor trailers and semi-trailers, regular flatbed and dump trailers. And so on and so forth.
We recommend reading: Tractor Rostselmash-2375: technical characteristics
Specifications
| Engine | |
| Type | 4-cylinder without turbocharging |
| Power, hp/kW | 81/59,6 |
| Brand | D-243 |
| Environmental standard | Stage 0/Stage I |
| Specific fuel consumption, g/(kW h) | 229+3 |
| Maximum torque, Nm | 298 |
| Transmission | |
| Transmission | Synchronized (optional mechanical) with mechanical reduction gear/synchronized reduction/mechanical accelerator/with synchronized boost |
| Clutch | friction single-disc permanently closed type with mechanical control |
| Number of forward/reverse gears | 14/4 |
| Rear PTO, min-1 | 540/1000 |
| Hydraulic system | |
| Load capacity of the rear linkage on the suspension axis, kg, not less | 3200 |
| Maximum pressure, MPa | 20-2 |
| Volumetric flow of the pump at the rated speed of the diesel crankshaft, l/min, not less | 45 |
| Hydraulic system tank capacity, l | 28,5 ± 0,5 |
| Chassis system | |
| Type | wheeled |
| Wheel formula | 4K4 |
| Tires | |
| front | 11.2-20; 13.6-20; 360/70R20;13.6R20; |
| rear | 15.5R38; 16.9R38; 18.4R34; 9.5-42; 11.2R42 |
| Other characteristics | |
| Trailer brakes/brakes | Dry (wet) double-disc (triple-disc)/single-line pneumatic drive (two-wire on request) |
| Maximum permissible weight, kg | 7000 |
| Climatic performance | U1/T1 |
| Minimum and maximum speed forward/backward, km/h | Min 2.55/5.36; Max 36.6/12.07 |
| Reverse gearbox | mechanical |
Engine
This tractor, like the MTZ-82, is equipped with a four-stroke, four-cylinder diesel engine “D-243”. Its cylinders are installed in a row, in a vertical position. It is equipped with a direct fuel injection system and an electronic control and adjustment system. There is no turbocharging, like the MTZ-82, on the D-243 engine. Which, however, according to many business executives, is more of an advantage for work than a disadvantage. The lining of the tractor engine compartment is made of high-quality plastic. Unlike the MTZ-82, a hood design with closed sides is used (lined with a full hood of the tractor diesel engine).
- The working volume of the D-243 engine is 4.75 liters.
- Cylinder diameter – 110 mm.
- Maximum developed power – 81 hp. (or 59.6 kW).
- Maximum torque – 298 N/m; at a rotation speed of 2200 rpm.
- Specific fuel consumption – 229 g/kWh.
- Fuel tank capacity – 135 l.
- Environmental standard – “Stage 0”/“Stage I”
Fuel consumption
The consumption of beats can be calculated using the formula 220 g/kW*hour. With a V fuel tank of 135 liters, the machine can operate for 7-10 hours.
Transmission and braking system
The tractor is equipped with a synchronized (although on special order it can be a mechanical) gearbox. The gearbox is equipped with a reduction gear (multiplier); synchronized accelerator. Number of gears: 14 forward and 4 reverse. The minimum speed is: 2.55 km/h forward and 5.35 km/h reverse. The maximum speed is set by the manufacturer as 36.6 km/h forward and 12.07 km/h back. The clutch is a friction single-disc, permanently closed type with mechanical control. The clutch disc linings are made of metal-ceramic material.
MTZ-920 gearbox
The role of the drive axle is performed by the front axle on the MTZ-920 tractor. It is to this that the final drives are transmitted, and it is also where the self-locking differential and planetary-bevel gearboxes are installed. The front axle is driven by a transfer case with automatic activation, two cardan shafts and an intermediate support with a safety clutch. The rear axle of the MTZ-920 is equipped with electro-hydraulic control.
Each wheel is equipped with multi-disc brakes, which are cooled using an oil bath. The hand brake is equipped with independent control. The type of brakes can vary: dry or wet; two-disc or three-disc; with single-wire or two-wire pneumatic actuator. Reverse gear – mechanical. Steering (HSC) – hydraulic volumetric, modernized. The MOUNT is equipped with a Danfoss dosing pump; a cylinder in the steering linkage and a continuous steering yoke.
Hydraulic system
The hydraulic system “MTZ-920” is of a separate-aggregate type, with a hydraulic lift. It differs in that it has duplicate outputs for the rear hydraulic system and hydraulic lift. In addition, the tractor is equipped with a two-speed rear PTO with an independent synchronous mechanism. The lifting capacity of the rear linkage on the suspension axis is at least 3.2 tons. The maximum pressure is 20 MPa. The volumetric flow of the pump, at the rated speed of the diesel crankshaft, is at least 45 l/min. The capacity of the hydraulic system tank is 28.5 ± 0.5 l.
Three sections of the distributor provide control of external cylinders of agricultural machines and implements. Pedal control of the hydraulic clutch and rear axle differential lock is used; lever control of the FDA transfer case.
It is possible to additionally equip the tractor with creepers; ballast weights for front or rear wheels; tent-frame cabin; stands for doubling the rear wheels; rear suspension fastening system; three pairs of output for the hydraulic system; hydraulic hook and bracket; additional chair; air conditioning.
Dimensions and weight
- Length – 3.97 m; Width – 1.97 m; Height (in the cabin) – 2.84 m.
- Wheelbase, length – 2.45 m.
- Track on the front wheels – 1455-1955 mm; on the rear wheels - 1800-2100 mm.
- Ground clearance under the front axle – 645 mm; under the rear axle – 465 mm.
- The smallest turning radius is 4.1 m.
- Operating weight – 4.1 tons.
- Maximum permissible weight, with load – 7 tons.
- Front tire sizes – 11.2-20; 13.6-20; 360/70R20;13.6R20.
- Rear tire sizes – 15.5R38; 16.9R38; 18.4R34; 9.5-42; 11.2R42.
Description of Belarus MTZ-920 and MTZ-921 tractor models
Agricultural units have many common design features with other MTZ models - 892, 952. Modifications of MTZ-920 differ among themselves mainly in engine power - ranging from 81 to 86 hp, the level of environmental friendliness of the engines, the presence or absence of turbocharging, and some other parameters . The MTZ-920.2 tractor is the most popular model.
To work in confined spaces - in the garden, vineyards - modifications of the MTZ-921 tractor with reduced dimensions have been developed. The units are equipped with turbocharged diesel engines, unlike the 920 models.
Thanks to their reduced dimensions, they are effectively used in cramped spaces - in vineyards, orchards and greenhouses, various warehouses, the construction industry, parks and public utilities.
Versions of the 921 gardening tractor differ from each other in engine power and some design and technological features:
- The Belarus-921 tractor has a power of 90 hp.
- MTZ-921.2 – engine power 95 hp.
- Model MTZ-921.3 is equipped with a 95 hp engine. with a charge air temperature reduction system.
- MTZ-921.4 - with increased torque, intermediate air cooling.
Technical characteristics of the MTZ-920 tractor
| Engine | |
| Type | 4-cylinder without turbocharging |
| Power, hp/kW | 81/59,6 |
| Brand | D-243 |
| Environmental standard | Stage 0/Stage I |
| Specific fuel consumption, g/(kW h) | 229 +3 |
| Maximum torque, Nm | 298 |
| Transmission | |
| Transmission | Synchronized (optional mechanical) with mechanical reduction gear/synchronized reduction/mechanical accelerator/with synchronized boost |
| Clutch | friction single-disc permanently closed type with mechanical control |
| Number of forward/reverse gears | 14/4 |
| Rear PTO, min -1 | 540/1000 |
| Hydraulic system | |
| Load capacity of the rear linkage on the suspension axis, kg, not less | 3200 |
| Maximum pressure, MPa | 20-2 |
| Volumetric flow of the pump at the rated speed of the diesel crankshaft, l/min, not less | 45 |
| Hydraulic system tank capacity, l | 28,5 ± 0,5 |
| Chassis system | |
| Type | wheeled |
| Wheel formula | 4K4 |
| Tires | |
| front | 11.2-20; 13.6-20; 360/70R20;13.6R20; |
| rear | 15.5R38; 16.9R38; 18.4R34; 9.5-42; 11.2R42 |
| Other characteristics | |
| Trailer brakes/brakes | Dry (wet) double-disc (triple-disc)/single-line pneumatic drive (two-wire on request) |
| Maximum permissible weight, kg | 7000 |
| Climatic performance | U1/T1 |
| Minimum and maximum speed forward/backward, km/h | Min 2.55/5.36; Max 36.6/12.07 |
| Reverse gearbox | mechanical |
Technical characteristics of the Belarus-921 tractor
| TRACTOR MODEL | 921(EURO 0) | 921.3(EURO 2) | 921.4(EURO 3) |
| Weight as shipped from the factory, kg | 4000 | ||
| Maximum permissible weight (total), kg | 7000 | ||
| Base, mm | 2460 | ||
| Overall dimensions: length, mm | 4100 | ||
| Overall dimensions: width, mm | 1600 | ||
| Overall dimensions: height, mm | 2380 | ||
| Front wheel track (min), mm | 1250 | ||
| Front wheel track (max), mm | 1420 | ||
| Rear wheel track (min), mm | 1160 | ||
| Rear wheel track (max), mm | 1640 | ||
| Smallest turning radius, m | 4 | ||
| Ground clearance, mm (on tires 12.4L x 16, 14.9R30) | 350 | ||
| Front tire sizes | 12.4L x 16 | ||
| Rear tire sizes | 14.9R30 | ||
| Specific ground pressure, kPa | 140 | ||
| Travel speed: transport, km/h max | 27 | ||
| Travel speed: operating, km/h max | 14,4 | ||
| ENGINE | |||
| Brand | MMZ | ||
| Model | D-245.5S | D-245.5S2 | D-245.5S3A |
| Number of cylinders | 4 | ||
| Type | 4-stroke, diesel with turbocharging and charge air cooling | ||
| Cylinder diameter, mm | 110 | ||
| Piston stroke, mm | 125 | ||
| Working volume, l | 4,75 | ||
| Rated rotation speed, rpm | 1800 | ||
| Rated power, kW (hp) | 65(89) | 70(95) | 70(95) |
| Maximum torque, N.m | 397(38,5) | 451(43,7) | 464(43,7) |
| Torque reserve factor, % | 15 | 20 | 25 |
| Specific fuel consumption at operating power, g/kWh | 229 | ||
| Specific fuel consumption at rated power, g/kWh | 236 | ||
| ELECTRICAL EQUIPMENT | |||
| Generator nominal power, kW | 1,15 | ||
| Rated voltage of electrical consumers of the on-board electrical network, V | 12 | ||
| Rated voltage of the electric starting system, V | 24 | ||
| TRANSMISSION | |||
| Clutch | Single disk | ||
| Transmission | Mechanical | ||
| Number of forward gears | 18 | ||
| Number of reverse gears | 4 | ||
| Gearbox | Boosting | ||
| FRONT AXLE | |||
| Bridge type | Split, fixed beam | ||
| Wheel gear type | Conical | ||
| Differential type | Self-locking limited friction | ||
| FDA drive | Two cardan shafts with intermediate support | ||
| FDA control | Mechanical | ||
| REAR AXLE | |||
| Bridge type | Composite | ||
| Wheel gear type | Cylindrical | ||
| Differential type | Conical with four satellites | ||
| ZM drive | Constant | ||
| BRAKES | |||
| Rear wheel workers | Disc, dry | ||
| Rear wheel parking | Disc, dry | ||
| Pneumatic drive for trailer brake control | Single wire, interlocked with brakes | ||
| CABIN | |||
| Type | Low profile with straight glass | ||
| PTO | |||
| Rear PTO | + | ||
| rear PTO independent I (at rated engine frequency), rpm | 540 | ||
| rear PTO independent II (at rated engine frequency), rpm | 1000 | ||
| rear PTO synchronous I, rpm travel | 3,03 | ||
| STEERING | |||
| Type | Hydrovolumetric | ||
| Swing mechanism type | Trapezoid | ||
| HYDROMOUNTED SYSTEM (HNS) | |||
| GNS rear | + | ||
| type of rear GNS | Separate-aggregate | ||
| load capacity on the hinge axis of the lower links of the rear hydraulic pump, kgf | 3600 | ||
| number of hydraulic outlets of the rear hydraulic pump | 4 (one dubbed) | ||
| GNS front | upon request | ||
| HYDRAULIC SYSTEM | |||
| Pump type | Gear | ||
| Maximum pressure, MPa | 20 | ||
| Pump capacity, l/min | 56 | ||
| Hydraulic system capacity, l | 45 | ||
| RUNNING SYSTEM | Wheeled | ||
| Type | |||
| Wheel formula | 4K4 | ||
Device
The drive axle is a front axle, reinforced with hydraulics and equipped with a self-locking differential. A power unit and a 6-speed gearbox are also installed. Checkpoint. In general, the transmission and clutch are in a closed state and have a speed mode: 14 steps (10/4). Speed range: forward 2.4-34.3 km/h allows you to use the tractor as a means of transportation; back 5-11.3 km/h.
Service brakes are oil-cooled disc brakes and an independent hand brake.
The hydraulics are duplicated by outputs for the rear 2-mode PTO.
Cabin
An air conditioner can and should be used in the MTZ-920, since the tractor cabin is equipped with good seals and has decent noise and heat insulation characteristics. The Gremmer operator's chair is height-adjustable and sprung. The cabin features improved interior finishing with modern materials; it fully complies with the requirements of the EU and OECD directives.
There are windshield and rear window washers, as well as electric door windows. Additional front work lights are mounted on the front light brackets. The panoramic glazing of the cab provides the operator with truly excellent visibility in all possible directions. The level of comfort is such that you can work for a long time, “postponing” the onset of fatigue “for later.”
What can be included with
Additional equipment installed on the tractor:
- three pairs of hydraulic terminals;
- mechanical fixation;
- wheel doubling attachments;
- front weight bracket;
- tug;
- second workplace;
- creeper (increases power in lower gears);
- towing device.
Selecting and purchasing a tractor of the Belarus 920 family
It is better to purchase a new MTZ in the showrooms of official dealers of the manufacturer. Advantages of purchasing:
- selection of modifications according to buyer requirements;
- the likelihood of purchasing at a reduced price the necessary additional equipment recommended by the manufacturer;
- obtaining the right to warranty and post-warranty service;
- Availability of offers for purchase on lease or through a favorable loan.
When pre-ordering, it is possible to add the following options:
- creeper;
- ballast weights for front and rear wheels;
- air conditioning;
- additional spacers for doubling the rear wheels.
The cost of the initial configuration is 1.2 million rubles. On the market of used agricultural machinery for a Belarus 920 tractor manufactured in 2011-2012 in good technical condition, offers start from 680 thousand rubles.
Advantages and disadvantages
Technical characteristics of MTZ 920 have all the advantages of this company’s line, of which there are more than 20 units. Each of the nodes of the original model was modified and received improved characteristics:
- The hydraulics have become more powerful, carrying out operator commands smoothly and precisely;
- Modified cabin with noise; - vibration protection;
- Travel speed 34.3 km/h;
But the most important advantage is the reviews of MTZ 920 owners - real owners of the equipment.
The disadvantages, as well as the advantages, include a large difference in cost due to the minimum basic configuration, for the addition of which you have to pay.
