Heavy motoblocks: types and rating of models
Motoblocks relatively recently entered the everyday life of modern business executives, however, they have already managed to consolidate their leading position in the conditions of summer cottages and small agricultural farms. Indeed, when cultivating the land and raising animals, mechanical driving forces are irreplaceable. For a long time, collective farms used tractors for planting and harvesting.
In modern society, the quantitative ratio of small and medium-sized private farmers has grown, who cannot always afford such expensive and large-scale equipment. Indeed, in addition to the high price, it implies additional service costs. Motoblocks in this sense are much more profitable to acquire. Their gasoline consumption is small, and repairs can often be done independently. In addition, there is a wide variety of choices on the market, not only in terms of price, but also in quality and performance.
Appointment
Heavyweight walk-behind tractors have the widest possibilities. Most often, they have powerful diesel engines that are able to work with any trailed equipment. The main purpose of this transport is tillage. The speed data and the quality of work with this unit are several times higher than with light modifications. Such an advantage comes from the high power that provides the ability to move heavy equipment. This unit also has a number of advantages.
A heavy walk-behind tractor is equipped with an increased gear, which provides a high top speed.
Such machines can be used as a full-fledged vehicle. If there is a trailer, the walk-behind tractor can be used to transport various goods.
With the most powerful engine of 18 liters. with., it allows you to transport up to 2 tons of cargo. When plowing the land, the heavy walk-behind tractor does not shift from the direction on the bumps, which significantly increases productivity. This effect is achieved thanks to a reinforced and more stable frame structure. Such equipment is used to raise virgin lands.
A powerful walk-behind tractor can successfully perform simpler functions:
- milling of the earth;
- sowing seeds;
- hilling plants;
- harrowing the site;
- digging up potatoes.
It should be noted that to perform all of the above works, you need special attachments.
For example, for milling the soil, you need the equipment of the same name - a milling cutter. It is an auger with several perpendicular branches that rotate to loosen the earth. This type of work is suitable only for a cultivated area and will not be able to lift the sod. However, such equipment is a worthy replacement for a plow. After the autumn harvest, it helps to cultivate the land not only efficiently, but also quickly.
But it is worth noting the negative sides in the operation of heavy motoblocks. Since the tool is manually operated, its large mass creates certain difficulties in use - a heavy diesel engine has to be turned and held with the help of hand force.
Such equipment can only be used by a fairly strong person.
Due to the fact that these models are practically mini-tractors, their maintenance is easier and cheaper. But the turning capabilities of a powerful walk-behind tractor suffer from this due to the lack of some parts in the design, such as a differential on the drive axle.
When choosing a unit, there are certain features.
For example, the user must lift this machine to a vertical position and carry out all the manipulations during soil cultivation on his own, without any assistance.
This rule is explained by elementary safety rules. But to correct this situation, there are small improvements, which are increasingly used by manufacturers. The main one is the three-wheel drive. It increases the stability of the machine.
Specifications
Despite the fact that diesel engines are used in heavy motoblocks, a gasoline alternative still exists. Each of these types of engines has its own characteristics. Gasoline engines are equipped with small and medium-sized walk-behind tractors, less often heavy ones.
It should be said right away that the main disadvantage of such a device is gasoline. Its consumption is often quite high, and the cost of gasoline is higher than diesel fuel.
Accordingly, such an acquisition has a long payback period. Although the prices for the gasoline units themselves are slightly lower than diesel ones.
The weight of the gasoline engine is less, which implies a lower weight of the walk-behind tractor itself with the same power. This technique is more maneuverable, but the engines themselves do not perform well during prolonged operation at low speeds. In addition, the cooling system of this device is simple and also not designed to carry out work for a long time.
The cultivation of large plots of land leads to the need to use the machine to the limit of its capabilities, which has a negative effect on their durability.
The optimal load for a gasoline engine is an area of up to 1 hectare. However, the technical characteristics of heavy gasoline motoblocks indicate an area of 3 hectares with a power of 8 liters. with.
There are also significant advantages to this technique. For people who do not have a driver's license and are far from shifting gears and the need to squeeze the clutch, there are modifications with an automatic transmission.
The diesel engine of the walk-behind tractor immediately speaks of saving on fuel, since its price category is one of the lowest.
And the fuel consumption with modern technologies is quite low. But the most important quality of such a walk-behind tractor is endurance. The machine can handle large areas of land without overloading. The cooling system of such a device is large, the horsepower supply is also pleasing. The power of such engines reaches 18 liters. with. At the same time, experts say that the speed of the units is not small - up to 20 km / h.
There are also disadvantages to this machine. And the most significant is the fuel, which freezes at sub-zero temperatures.
For owners of private farms, the possibility of year-round operation is important, in contrast to summer residents. The latter are limited to planting and harvesting during the warm season. And farmers can be advised to acquire a heated storage room for such equipment. Also, manufacturers often equip heavy diesel engines with a power take-off shaft, which makes it easy to drive a trailed one. Complete set of large units of 10-12 liters. with. also involves the installation of an adapter for a comfortable ride and work.
How to choose?
In order to determine which walk-behind tractor is suitable, it is necessary to analyze all types of work that it must perform and the technical knowledge of the owner. To do this, consider the main advantages and disadvantages of each type of technique.
The advantages of gasoline engines:
- the minimum level of noise and vibration;
- start-up without electric starter;
- easy replacement of spark plugs;
- great maneuverability.
Disadvantages:
- simple cooling;
- weak work at low speeds;
- high fuel cost.
Pluses of a diesel unit:
- low fuel price;
- high power;
- large motor resource;
- good adhesion to the soil due to its large dimensions;
- the ability to install any additional equipment.
Minuses:
- freezing of fuel;
- heavy weight;
- separate electric starter;
- low maneuverability;
- high cost of the unit.
Based on these indicators, we can conclude that a walk-behind tractor with a gasoline engine is profitable only for owners of small farms.
Its capabilities are limited mainly by the motor resource. And gasoline itself, with a large amount of work, will make you spend a lot. The diesel engine of the walk-behind tractor, of course, has some drawbacks, but this is compensated by the versatility of use with various attachments of high power and significant motor resources. It is recommended to choose such a unit for owners of private farms and farmers with territories over 1-2 hectares.
Model rating
For agriculture, not only the price of the machine is important, but also its reliability. Here are the 10 best representatives of heavy-duty motoblocks:
- Benassi MC4300 (Italy, 10 HP);
- Garden Scout GS 101 DE (China, 12 HP);
- Crosser CR-M12E (China, 12 HP);
- ZUBR JR Q12E (China and Russia, 12 hp);
- "MB-12DEL" (Russia, 12 hp);
- "Ugra" with the "Agro Motor 178FG" engine (Russia, 9 hp);
- Kipor KDT 910 E (China, 8.5 HP);
- "Centaur MB 1081d" with the Japanese TOYOKAWA engine (China, 8.5 hp);
- "Belarus 08 MT" (Belarus, 8 hp);
- "Agro" (Russia, 8 hp).
It should be noted that German manufacturers are not included in the rating, since this type of equipment, produced in Germany, has a high cost. Therefore, this technique has a small circle of buyers. Most of the models are either Chinese or Russian. Due to their low cost, reliability and power, these machines are in demand among farmers.
Operation, maintenance and possible problems
When using powerful diesel motoblocks, you need to remember how frosts affect diesel and try not to leave the unit without heating in winter.
Also, at any time, it is necessary to monitor the presence of grease on all connections and rotary mechanisms of the unit.
If the walk-behind tractor leads to the right, especially when driving with a cart, do not worry, this is one of the most frequent problems of these devices. The reason lies not in the device itself, but in the tires. Manufacturers do not set high demands on them. For this reason, they differ in diameter and stiffness. A little air bleeding from the wheel opposite to the side of the care will help to establish the process. The ideal result comes only during the experiment.
Motoblocks of the Zubr brand sin by throwing water out of the radiator. This could indicate an overflow or a malfunction of the head.
When the head breakage is evident, it is necessary to change the gasket under it. In this case, the part itself must be sanded. As for the correct water level, it should only cover the honeycomb. Breakage of attachments is also a common problem. When working with heavy soil, for example, a crack may develop in the cutter body. If this happened, then restoration is indispensable. But for this repair, as well as for replacing the crankshaft bearings, installing the injection pump and replacing the cylinder head gasket, not only special tools are needed, but also technical knowledge. Otherwise, you can get into a situation where both new parts and the walk-behind tractor will be damaged.
An overview of heavy motoblocks in the video below.
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