Range of Diameter：0.00~20.00mm；

Length：>5.00mm； 

Roughness：Ra0.03um； 

X，Y，Z moving speed：10m/min (can be changed by customer need)；

Machine length*width*height： 

Number of servo motors：4pcs；

 Number of air cylinders：2pcs； 

Number of air rotation chuck：1pc；

Tool magazine：1 with 8 grinding tool (can be increased by customer need)；

Part magazine：1 with 20 pcs (can be increased by customer need)；

Internal diameter grinding/polishing NC machine，Type NJY-0020-1, the best roughness can reach Ra0.03um, internal diameter range to be processed is 0.00 to 20.00mm.

This machine is a 3 Axies with 4 more movement NC machine. It is equipped with the magazines of part and grinding tool. The NC control system is Weihong CNC operation system. It can automaticall load and unload the grinding/polishing tool and the parts to be processed.

An operator can only need to replace the processed parts and used grinding/polishing tools and the machine will automatcially run all the time. The grinding/polishing tool is installed with sandpaper. The sandpaper grit is related to the roughness to be processed. If roughness of a surface should be processed to be Ra0.03um, the sandpaper should be 1200 grit. Or if the roughness needs to be smaller than 0.03um, cotton and grinding paste will be needed.