1.The gear is made of high strength low carbon alloy steel through carburization and quenching. The hardness of tooth surface may reach to HRC58-62. All gear adapts NC tooth grinding process, high in accuracy and good in contact performance;
2.High in transmission efficiency: single stage, more than 96.5%; double-stage, more than 93%; three-stage, more 90%;
3.Smooth and stable in run, low noise;
4.Compact, light, long life, high bearing capacity;
5.Easy to disassemble, inspect and assemble.

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: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;

Changzhou Mingdi machinery Co.,Ltd. is local at the most prosperous area ---JIANGSU Changzhou city. We near to Shanghai just 1 hour train from Shanghai to our city. Here is the focus of Gearbox and Gears production. We produce gearbox and the gears. We have complete processing equipment, strong technical team to ensure our products with stability, low noise characteristic. Our products supply to electrical machinery, plastic extrusion machinery, railway engineering machinery and metalurgical machinery which are OEM manufacturers. Also,we welcome your customized requirment.

 Q: What's your business type?
A: We are a manufacturer, and also have import & export trading right.

Q: What's your main products?
A: Power transmission gearboxes and gears. 
Such as: industrial HB gearbox, worm/helical/bevel/planetary gearbox, heavy duty gearbox, gearbox for crane/extruder/excavator/rolling mill/cement mill, etc.

Q: What about your warranty?

A:12 to 18 months warranty according to different products and lifetime service.

Q: What's your MOQ?
A: 1 set for different kinds of gearboxes, and 5 pcs for gears.

Q: Can you supply customized gearboxes or gears?
A: Yes, we can customize any kinds of gear and gearbox as per your requirement or drawings.

Q: What information should be given, if I want to buy gearbox?
A: Gearbox ratio, gear type, speed ratio, input / output speed, rated power, mounting position,  More details will be welcomed