P series planetary gear reducer is highly efficient and based on a modular system. It can be combined on request. It adopts involute planetary gear transmission, efficient inside and outside the mesh, and the power split. All the gears are treated with carburizing, quenching, and grinding with hard tooth surface up to HRC54-62, which makes lower noise and increased the efficiency and service life. Product Feature 1. P series planetary gear units/(epicyclic gearboxes) have various options from 7 types and 27 frame sizes, can ensure up to 2600kN.m torque and 4,000:1 ratio 2. High efficiency, high output torque, suitable for heavy-duty working conditions and applications 3. High reliability, low noise 4. High modular design 5. Optional accessories 6. Easily combined with other gear units, such as helical, worm, bevel, or helical-bevel gear units