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Double Surface Grinder

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YHMM7776 Precision CNC Double Surface Grinding Machine
YHMM7776 Precision CNC Double Surface Grinding Machine

YHMM7776 Precision CNC Double Surface Grinding Machine

It is designed for high precision synchronous grinding of two parallel surfaces of flat parts in various shapes, especially those components that have large size and stringent tolerance requirements for parallelism & flatness and perpendicularity, like speical bearing, connecting rods, etc.

Technical characters

Technical Feature
● The main spindle adopts German FAG product, and controlled by Siemens828 control system.
● The Feeding of upper and lower grinding head is driven by Siemens servo motor with transmission mechanism and large diameter double-nut ball screw.
● The machine has the function of automatic dressing and grinding wheel compensation. The grinding position, dressing position, dressing value and times, compensation and other parameters can be set in the CNC system.
● The front door of the machine is automatically opened by hydraulic pressure. If the front door is not closed, the grinding wheel will not start.
● Use special dressing tools to dress the upper and lower grinding wheels at the same time. A dressing nozzle is subject to add special dressing fluid while dressing.
● Feeding mechanism and feeding carrier is modularly designed and xedon the lower frame. The loading and unloading of grinding wheel is carried out from the left side of the lower frame.

Typical Applications
Bearing inner and outer rings, oil pump rotors, valve plates, etc.





Workpiece Range

Ф50 Ф500mm

Workpiece Thickness

10 50mm

Wheel Head Speed

100 890r/min                                                            (stepless work speed regulation )

Power of Wheel Head Motor


Power of Wheel Head Feeding Carrier Motor


Power of Feeding Carrier Revolution


Power of Feeding Carrier Rotation


Size of Grinding Wheel


The Roughness of Workpiece


Overall Dimensions(L*W*H)

 3100×2800×3000 mm

Total Weight