HQN type rotary grille cleaning machine adopts built-in type to deal with the problem of ultra-long (the width of the dirt exceeds the width of the hole) and ultra-high (the height of the dirt exceeds the height of the reduction frame) of the conventional cleaning machine transmission structure. The motor is hidden inside the frame, which greatly improves the outdoor protection ability of the motor, and is suitable for hydropower stations and pumping stations with a lot of garbage.

Trash Rake is mainly located at large water intakes, sewage and rainwater lifting pump stations, sewage treatment plant intakes, etc., which can continuously and automatically block and remove fine fibers and suspended debris in sewage to ensure the normal operation of turbines and other equipment It is an important equipment for many hydropower stations to realize unattended operation.