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Double Surface Polishing Machine

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YH2M8436A High precise vertical double surface polishing/lapping Machine

YH2M8436A High precise vertical double surface polishing/lapping Machine

It is used for polishing/lapping double surface of metal parts, such as valve plate, wearing plate, rigid seal ring, cylinder piston ring and oil pump blade, well as processing thin and hard brittle non-metal components of silicon, germanium, quartz, glass, ceramic, sapphire, gallium arsenide, ferrite, lithium niobite etc.

Technical characters

Technical characteristics:
● The movement principle of 4 planet gears.
● Ensure tray’s high run-out and stable, the weight of tray is distributed to the base plate through hollow shaft, cone bearing and three supporting legs.
● Exclusive reducer and frequency converter regulating, there is one for each ring gear, upper plate, lower plate and sun gear, and the machine starts and stops smoothly.
● Programmable, it is easy to program on interface and it can add 100 programs.
● Pressure detecting mechanism, automatically detect the pressure of work piece.
● Self-lock cylinder, when upper plate goes up to upper limit, hook will catch it for ensuring operator’s safety.
● PLC controlling, which it is flexible and reliable
● Touch screen, it is convenient to show alert information and state. Besides, the interface is friendly and the information is huge.
● Pressure detecting mechanism is optional.

The device can be processed workpiece including valve plate, valve plate, friction plate, rigid seal ring, cylinder piston ring, oil pump blades, silicon, germanium, quartz crystal, glass, ceramics, sapphire, gallium arsenide, lithium niobite etc.





(mm) Upper and lower lapping plate size(OD*ID*THK)


Planetary wheel spec

DP=12  Z=200

n   Planetary wheel qty (n)


(mm)Max size of workpiece

(360mm Diameter or diagonal

(mm)Min thickness of workpiece


(mm)Precision of workpiece



Precision of whole plate ‘s thickness



Max Ra0.15μm             Polishing Workpiece Ra0.125μm

(rpm)Lower plate speed

10-60stepless regulating

rpm)Upper plate speed

3-16stepless regulating

(rpm)Sungear speed

3-30stepless regulating

(rpm)Ring gear speed

3-30stepless regulating

(mm)Overall size(L*W*H)


(Kg)Total weight