The most reliable tested truck tractor MAZ-6422

The truck tractor MAZ-6422 and its modifications are focused on efficient operation as part of a road train for transportation over various distances. The vehicle meets modern environmental standards, is economical and has high traction performance. The car is equipped with an ABS system, an autonomous heater and additional equipment that allows it to be used for towing a semi-trailer, a tanker and a dump truck. In combination with operational parameters and an affordable price, the truck in question is one of the best representatives on the domestic market.

History of creation

The ancestor of the MAZ-6422 was the well-known modification under the index 5335, which had a relatively small carrying capacity, about eight tons. The base model was distinguished by high-quality cab lining and an all-metal cargo platform. Based on it, several on-board variations and truck tractors with a three-seat cab, as well as a sleeping bag for two people, were created.

The improved car from Belarusian manufacturers was equipped with a new YaMZ-238E engine, as well as a synchronized eight-speed manual gearbox. In addition to the new version with a carrying capacity of eight and a half tons, in 1978 the MAZ-tractor 6422 appeared, which is widely known under the name "SuperMAZ". This model has been repeatedly upgraded, equipped with more powerful power plants, and some samples have received an even greater load capacity.

Technical specifications

The truck received a 6 * 4 wheel formula, a YaMZ-238F power unit, a suspension with stabilized lateral stability and a comfortable cab with a compartment for rest. The engine power is 320 "horses", fuel consumption is about 45 liters per hundred kilometers, with a gas tank capacity of 350 liters.

Below are the overall parameters of the MAZ-6422 car:

• length / width / height - 6.57 / 2.5 / 2.97 meters;
• wheelbase - 2.9 / 1.4 meters;
• track (front / rear) - 2 and 1.7 m;
• minimum turning radius - 9.2 m;
• clearance - 26 centimeters.

The gross vehicle weight of 23.9 tons allows you to reach speeds in the range of 85 kilometers per hour. The curb weight of the tractor is more than nine tons, and with a trailer with a carrying capacity of 26 tons, the vehicle weighs about 42 tons. In 1988, Minsk engineers began cooperation with the German concern MAN, after which tractors with imported 360-horsepower diesel units appeared.

MAZ 6422A8-330 truck tractors are designed to work as part of a road train for intercity and international transportation. All tractors of the MAZ 6422A8-330 brand meet modern environmental standards and are distinguished by fuel efficiency and high traction. Prices for MAZ 6422A8-330 truck tractors, combined with high performance parameters, make MAZ trucks the best tractors in terms of price-quality ratio. All truck tractors, like other MAZ 6422А8-330 trucks, are equipped with an anti-blocking system, an autonomous heater of the Webasto type. , fuel tank protection.

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Specifications:

Comparative table of modifications of MAZ 6422 and 6430 cars

Cabin MAZ-6422

One of the main differences between the truck in question and its predecessor was the cab. The new model received a box-shaped shape, modern lighting elements and an original radiator grille. Instead of a massive steel bumper, an improved element appeared with an embedded headlight unit. An aerodynamic spoiler was placed on the roof of the updated car.

Not spared positive changes and the interior of the cabin. A curved windshield that improves visibility, a driver's seat adjustable in several planes, a safe steering wheel, and a pair of berths are also installed.

Among other features of the MAZ-6422 tractor, it can be noted that the power plant is shifted forward by almost forty centimeters relative to the front axis. In addition, the machine is equipped with a hydraulic cab lift, an updated gearbox, drive axles and a new brake assembly.

Modifications MAZ-6422

The cab of the Minsk tractor is decorated in a simple design, but it looks presentable. A large radiator grille, a small bumper with headlights harmoniously fit into the overall appearance of the car. Panoramic glass improved visibility, and a neat roof spoiler improved aerodynamic performance. The dimensions of the truck tractor are 6.6 meters in length, and in width and height, respectively, 2.5 and 3.8 meters. The standard truck clearance is 260 mm. The largest available tractor weight of 52 tons is possible as part of a road train.

Basic version, equipped with a 320 hp diesel engine. issued until 1985. In the future, a large number of modifications of the model were developed at the automobile plant, differing in the power plant. In 1989, the first modification of the car was put on the conveyor, with an engine developing a power of 360 hp. In the same year, a version of the MAZ-6422 was launched, equipped with a more powerful engine of 425 "horses". The model with the index "6" is distinguished by the fact that instead of the Yaroslavl diesel engine, a German MAN unit (360 hp) is installed, which works in conjunction with a 12-speed gearbox. A modified version of the truck with the addition of the number "7" to the definition of the name, equipped with the same 8-cylinder diesel engine and with a modified front end, has been produced since 1985. The last (1997) launched the release of the MAZ-64227 version with the index "29".

power unit

The Belarusian "SuperMAZ" was equipped with various types of engines. The most commonly used four-stroke diesel engine with eight cylinders YaMZ-238F. The installation was front-mounted and had a V-shape, as well as a turbine.

The MAZ-6422 car has the following engine specifications:

• working volume - 14.68 liters;
• design power - 320 horsepower;
• limit torque - 1120 Nm;
• speed - 1,500 rpm.

After the start of cooperation between the Minsk Automobile Plant and the German company MAN, some models of tractors were equipped with German diesel engines for 360 "horses".

Advantages and Features

Soon after the start of mass production, the MAZ-6422 truck with a semi-trailer became a dream for any trucker for several reasons. The following aspects contributed to this in many respects:

• the steering wheel has become more comfortable and safer;
• increased comfort is provided by an improved design of seats with a spring suspension;
• there is a special compartment for storing clothes and personal belongings;
• the bridge part has become more durable due to additional heat treatment;
• a sleeping bag for two places makes it possible to relax in comfortable conditions;
• increased controllability and maneuverability of the machine through the use of an eight-speed gearbox with a demultiplier.

The truck was equipped with variable-section leaf springs, which make it possible to increase the smoothness of the ride and reduce the weight of the vehicle. The MAZ-6422 truck tractor radically changed the traditional opinion about Soviet heavy-duty trucks. Driving has become easier with improved driver comfort.

Model range of MAZ truck tractors

To date, the Minsk Automobile Plant offers a fairly wide selection of truck tractors, differing both in engine power and maximum weight of the road train, and in the degree of comfort. Each of the models is focused on its range of tasks, and each finds its consumer.

The main part of any truck tractor is the chassis, the design of which determines the permissible loads on the saddle and on the rear axle of the vehicle. Naturally, three-axle models (MAZ 6422 and MAZ 6430) have a large margin of safety compared to two-axle tractors. However, you have to pay for this advantage with less maneuverability and a larger dead weight of the car - for these models it reaches almost 10 tons.

Biaxial models are lighter in weight. For example, MAZ 5433 weighs about 8.5 tons, MAZ 5440 - about 8 tons, and the lightest tractor of the entire family, MAZ 5432 - only 7.3 tons. Many MAZ truck tractors can be equipped with engines of different power. In the model index, this is indicated as A2, A5, A8, etc. The letter "A" means that the engine complies with the Euro-3 environmental standard, and the number just indicates the engine power. So, for example, the MAZ 5440A8 differs from the MAZ 5440A5 in a more powerful engine - 400 "horses" versus 330. The same can be said about the MAZ 6430A9 and MAZ 6430A8 models.

More engine power not only provides better road dynamics, but often allows the tractor to tow a heavier trailer. If for MAZ 6422A5 the permissible weight of a road train is 44 tons, then for MAZ 6422A8 this figure is already 52 tons.

Speaking of figures and technical parameters, one should not forget about another important criterion - comfort. Especially when it comes to modern trucks for long-distance transportation, because safety often depends on driver fatigue on long-distance routes. Cabins that are installed on MAZ vehicles, until recently, were divided into two classes - large and small. Large ones were designed for two drivers and were equipped with sleeping places. On truck tractors, a small cab is used only on MAZ 5433. This machine is not designed for long-distance flights, its scope is urban construction and local transportation.

Not so long ago, MAZ developed and began to install a new, so-called "high" cab on its trucks. Such cars, even outwardly, are very different from the previous ones, and in terms of their convenience they are close to budget models of European brands. These updated cabins are installed on MAZ 5440 and MAZ 6430 tractors, which are considered among truckers to be the most suitable for international routes.

Thus, having studied the features of each model, a transport company or a private carrier can choose exactly the technique that best suits their specific tasks. Our goal is to help you make that choice and provide exactly what your business needs.

MAZ-6422: reviews

Feedback from owners and users of this car is mostly positive. Consumers note the high traction power of the truck, the well-thought-out and improved cab design, as well as the reliability of the power unit. "SuperMAZ" is rightfully one of the leaders in its class not only in the post-Soviet space, but also in the international market.

Together with indicators of efficiency, comfort, performance and price, this machine surpasses many analogues. The development of several modifications and the possibility of using additional devices make it possible to actively use the vehicle in various industries that require powerful and reliable equipment for transporting goods of any nature.