Working depth
The maximum processing depth provided by the unit. In cultivators with non-replaceable cutters, this parameter is determined primarily by the cutter diameter, in walk-behind tractors designed for active cutters (see below) - by design features (in such models, even high power does not guarantee a large working depth). The most limited indicator in modern walk-behind tractors is
up to 20 cm, and a value
from 21 to 25 cm can be called small. However, often even such capabilities are quite sufficient. A depth of
26 to 30 cm already provides quite extensive capabilities, and the most advanced models are capable of "biting into the ground"
more than 30 cm.
In any case, the optimal processing depth depends on the type and condition of the soil, as well as the crops for which the soil is being prepared; detailed recommendations on this matter can be found in specialized sources. So it does not always make sense to look for a model with maximum depth - especially since such capabilities require high power. It should also be noted that in many units the depth can be adjusted.
Motor power
The power of the two-wheel tractor/cultivator engine in watts. This designation is usually used for electric engines, but can also be used for petrol/diesel engines, along with horsepower (for more information, see the "Motor power" section above).
More powerful motor allows achieving higher productivity, width and depth of processing. On the other hand, high power significantly affects the price, weight and dimensions of the unit, as well as the consumption of electricity / fuel. In light of this, the engine power is selected by the manufacturer taking into account what "weight category" the walk-behind tractor belongs to, what characteristics it should show. So, the lightest models have a power
of up to 1.5 kW, this is the device that is best suited for a small area of 6 - 8 acres. Walk-behind tractors
up to 3 kW can cope with 10 - 15 acres, a power of
3.5 - 5 kW is suitable for a plot of 50 acres to a couple of hectares. Units
for 5 - 10 kW are already classified as professional level, they can "tame" spaces of 7 - 10 hectares; and the heaviest and most powerful modern walk-behind tractors have a power
of more than 10 kW.
Noise level
The maximum noise level produced by the cultivator / two-wheel tractor during operation. A noise of 70 dB is comparable to a very loud conversation, 80 dB to a busy city street, 100 dB to a production shop. The lower the noise level, the more comfortable the use of the unit for the operator himself and the less inconvenience it causes to others.
