MB4220-ZD disc-type muti-station automatc internal polishing machine s a new generation of intelligent polishing machine independently developed by our company, which can automattcally complete multiple processes such as rough, fine and fine polishing at the same time, The machine has a strict and reasonable structure, convenient and simple operation, reliable Performance, stable quality. energy saving and environmental protection. It greaty reduces the resource consumption of enterprises, improves production efficiency and processing quality, and is an ideal polishing equipment for metal utensils. 
The control system adopts PLC+touch screen control, which can realize high-speed and accurate polishing process control of the machine. Automatic constant pressure polishing, real-time online detection and automatic and accurate compensation function following the grinding wheel loss, and accurate solid wax automatic waxing method.

Main Technical Parameters:
Machine model: MB4220-ZD
Function: Inner polish
Workstation: ≤12
Max work piece diameter: Diameter (140~320)xH(60~250)mm
Work piece rotate speed: 28~140 r/min(Step-less speed regulation)
Max diameter of polish wheel: centre hole:25mm max diameter:220mm
Polish wheel rotate speed: 2900 r/min
Motor power: Abrasive Wheel Motor: 11KW/7.5KW; Work piece motor:0.75 KW; Reciprocating motor:0.75 KW; Advance and Reverse Motor: 0.37 KW; Compensate pressure motor: 0.75KW
Waxed way: Automatic spray
Polishwax: Solid wax/liquid wax
Holding: Vacuum Adsorption(Gas-electric interlock)
Machine Size: 6800x6800x2800(mm) (LxWxH)
Machine Weight:about 6-18T