Engine power

The first is rated power, also known as rated power, which is an important indicator, which not only reflects the size of the tractor, but also determines the amount of state subsidies (if it is in the subsidy directory). The actual power of tractors from different manufacturers with the same rated power will not be exactly the same, because the engine power changes within a certain range. The rated power "calibrated" by the manufacturer may be close to or much smaller than the drunk high power. If you can also learn about high power from manufacturers or dealers, it will help to judge which tractor has greater actual power or reserve power.

Transmission type

The technical level of tractor mainly depends on the gearbox. At present, power shift is fashionable. Many tractors are called power shift tractors. In fact, the difference between high and low power shift tractors and semi power shift (also known as regional or section power shift) tractors is quite large. Although it has made great progress compared with pure mechanical transmission, the gap between semi power shift and full power shift is far greater than that between semi power shift and full power shift. The technical grade of the gearbox, from low to high, is pure mechanical, high-low power shift, semi power shift, full power shift and stepless speed change. The higher the technical grade of the gearbox, the better the economy of the tractor, which is also the fundamental reason for the higher price of the gearbox with higher technical grade. However, it should be noted that the gearbox with high technical level may feel relatively slow response and "meat" when shifting, which is normal.

wheelbase

Wheelbase is the horizontal distance between the center lines of the front and rear wheel axles (see E in the schematic diagram). As long as you ask the manufacturer or dealer, you can obtain accurate values, or you can use a tape measure with a length of more than 3 meters to measure yourself. Wheelbase is an advantage for some tractors and a disadvantage for others. The advantage of large wheelbase is that the tractor frame is large, the structural weight is heavy, the longitudinal stability is good, and less counterweight can be added during heavy load operation. The problem caused by the large wheelbase is that when operating under light load, the weight of the tractor can not be reduced, the fuel consumption is large, and the turning radius is too large and inflexible. Small wheelbase and high-power tractors are generally not suitable for heavy-duty operation with pure traction, such as matching with traction subsoiler and traction rake; The tractor with large wheelbase and low power is difficult to become a "universal tractor" suitable for various light and heavy load operations