Series of this type of gearbox  are perfect power driving device with all of their designing compliant with ISO and IEC international standards, featured by well-knit design, compact structure, small size, stable operation, low noise, low speed-ratio grading, high efficiency, reliable application and long service life. 

They are widely used as matching equipment for metallurgy, mining construction, hoisting, printing, and cement industries, and also used for the matching and maintenance of imported equipment, It can be equipped with various motors such as three-phase asynchronous motor, electromagnetic brake three-phase asynchronous motor, roller way motor, frequency conversion speed regulating motor, and DC motor as requested by customer.
The suitable scope of gear speed reducer is as follows:
Type, specification of speed reducer and its expressed method

1. The type has ZDY single-stage cylindrical gear speed reducer, ZLY double-stage cylindrical gear speed reducer, ZSY three-stage cylindrical gear speed reducer
2. Specification has: Single stage of 80, 100, 125, 160, 200, 250, 280, 315, 355, 400, 450, 500, 560; Two-stage: 112, 125, 140, 160, 180, 200, 224, 250, 280, 315, 355, 400, 450, 500, 560, 630, 710; Three-level: 160, 180, 200, 224, 250, 280, 315, 355, 400, 450, 500, 560, 630, 710;
D expresses a single stage, L expresses grade-two, S expresses grade-three, and Y indicates that equipment adopts the hard flank of a tooth gear wheel