コマツ（小松製作所） PC150-5 Swing Reduction

Engineering construction machinery digger excavator attachment PC150-5 Rotary Reduction Gearbox. The swing gearbox (also known as swing reducer) is the core component of the excavator swing system. Its main functions are to reduce the motor speed, increase the output torque, and drive the upper structure to rotate left and right smoothly and powerfully. It also bears huge radial and axial forces during operation to ensure stable and reliable rotation, allowing the excavator to accurately steer and position during work.