Planetary gearboxes are designed in 8 sizes that can be easily assembled into multistage gearboxes (modular construction). The flanges are made of gray cast iron, and the hollow gears (rings with internal teeth), which essentially form the gearbox housing, are made of stainless steel for improvement. All other gears are cemented and ground. The input and output shafts are hardened and ground, and always coaxial on the gear unit. The gear unit is round in shape, it can be attached via the outlet flange or placed on legs. A torque lever can be used, combined with legs and a flange, as well as anything else desired by the customer.

The input shaft rotates the central gear of the parasol, which drives the planetary gears, which are mounted with needle bearings and roll on a hollow gear. The planets are attached to a planetary support (clamp), through which the torque is transmitted to the second stage solar gear or to the output shaft.

Gears can consist of any number of gears, depending on the required gear ratio.)