MTZ-1221 tractor: specifications

Universal tractor MTZ-1221, whose technical characteristics allow a wide range of agricultural and construction works to be performed, is manufactured in Belarus and is known as Belarus-1221. This model perfectly interacts with various additional adaptations, is actively used in the road, industrial, forestry and agrarian sectors. The vehicle is designed to work in different climatic conditions.

Features of operation and maintenance

The model in question is developed in Belarus at the Minsk plant. The enterprise has opened production facilities in some Russian cities: Smolensk, Elabuga and Saransk.

MTZ-1221 tractor, whose technical characteristics allow it to be used in various economic spheres, is produced in two main modifications:

• Option 1221L - designed specifically for the forestry sector. Modernized auxiliary devices allow for the harvesting of whips, tree planting, as well as loading, transportation and skidding of timber, followed by the formation of stacks.
• The MTZ 1221B.2 model is a later variation, deliveries of which to Russia were carried out until 2011. From the classical tractor the model is distinguished by the presence of reverse control.

Overview of key indicators

The domestic MTZ-1221 tractor, whose technical characteristics are among the best in its category, is widely used in the former socialist countries:

• The power unit is 2602С.
• Capacity of the unit in horsepower is 130.
• The standard rate of rotation is 2100 rotations per minute.
• The number of cylinders is six.
• The cylinder size / piston stroke (cm) - 11 / 12,5.
• The capacity of the engine is 7.12 liters.
• The capacity of the fuel tank (l) is 160.
• The clutch is a dry, two-disk version of a permanently closed type.
• CAT - stepped mechanics with a synchronizer (4/2).
• Speed indicator (km / h) - up to 35.
• The rear gross unit for power take-off is an independent type, two-speed with a hydromechanical controller.

Universal unit МТЗ-1221, technical characteristics

Other indicators of the tractor in question:

• Capacity of the hydraulic system (l) - 21.
• Wheel base (mm) - 2 760.
• The height is 2 850 mm.
• The width is 2 250 mm.
• Length (mm) - 4 950.
• Track (mm) - 1500/2260.
• Clearance (cm) - 62.
• Turning radius to minimum (mm) - 5300.
• Operational weight (t) - 5,3.
• Tires - 14,9R24.

It is worth noting that the technique is adapted to interact with various hinged and trailed attachments.

Device

The MTZ-1221 wheeled tractor (Belarus 1221) is equipped with a diesel six-cylinder engine with a turbine, low fuel consumption. Compared with earlier models, the upgraded vehicle received a modified transmission assembly in which a reinforced clutch and a rigid body with a pair of disks appeared.

The unit MTZ-1221, whose technical characteristics will continue to be considered further, is equipped with a manual transmission with two ranges for the rear and four speeds for the forward movement. There is also a synchronizer, which is involved in switching speeds, activating the PTO and the main front drive.

Arrangement of the front bridge beam or portal with planetary reducers. The frame of this unit has increased strength and is intended for installation of various attachments. MTZ-1221 tractor, the technical characteristics and model design of which are designed for operation in various regions, is equipped with a rear axle with a conical differential and a planetary-type gearbox on the wheel. The permanent drive is equipped with a hydromechanical controller.

Cabin

The driver's seat is made of a metal frame and reinforced with safety features. The sunlight is protected by toning and a special panel. The interior decoration is aimed at increasing the soundproofing properties, there is a spare exit, which is placed on the roof of the cabin.

MTZ-1221 tractor, complete sets, technical characteristics of which were mentioned in the review, is equipped with two operating units with levers and switches. The main post is located to the right of the tractor driver, and an additional node is located in the upper shield inside the passenger compartment. With the help of levers and switches, the fuel supply, the operation of light elements and auxiliary equipment are regulated. Electrical supply provides a built-in generator for 1 kW.

Motor and hydraulics

The Minsk tractor MTZ-1221, whose technical characteristics allow it to compete confidently with foreign analogues, is equipped with a power unit on diesel fuel with a turbo-supercharging. The engine is four-stroke, has six cylinders, which are arranged in a row. The volume of the engine is 7.12 liters, power - 130 horsepower. For more modern modifications, the D-2602C and D-260 2S2 motors are installed. From the basic model, they differ in power - 132 and 136 horses respectively.

The hydraulic unit for the unit under consideration is manufactured by the well-known Bosch brand in the technical world. For the installation of devices, three separate outputs are provided. Depending on the modification, the tractor can be equipped with two types of hydraulic unit:

• Horizontal self-contained cylinder;
• Pair of vertical cylinders.

For the functionality of hydraulics is the built-in pump unit. There is also a control unit for temperature and filtration of the working fluid. The system can be filled with both domestic and imported oil.

Advantages and disadvantages

Belarusian tractor MTZ-1221, technical characteristics, description and some features of which are discussed above, has a number of objective advantages and certain disadvantages. The advantages of the unit include the following:

• Easy operation, maintenance and repair.
• Uncomplicated and reliable.
• Provides a cold start, allowing you to start the engine in the cold.
• Availability of spare parts.
• Acceptable price.

Among the disadvantages can be noted the possibility of engine overheating. When working in the heat at maximum power, it can simply boil. In addition, with economical fuel consumption, the reserve of the tank is short-lived.

Conclusion

For its technical data, Belarus has an affordable price. At the same time the unit is universal, it can be used in various industrial and economic branches, it is adapted to the arrangement of different types of trailed and mounted attachments. Among domestic models, the vehicle is among the leaders in its class and can compete on an equal footing with many foreign analogues.