GC-2M8470B Double-Sided Grinder

GC-2M8470B Double-sided Grinder

Double Sided Grinding Machine can meet the requirements of high-precision surface grinding or fine grinding.

Item name: GC-2M8470B Double-Sided Grinder

Grinding Disc Size: φ700xφ300×55

Application: Used for processing robot joint bearings, hard alloys, high-speed electric spindle bearings, spacers


Crownkyn Superhard GC-2M8470B double-sided grinder can meet the requirements of high precision surface grinding or fine grinding, by removing the excess material on the two surfaces of the parts, can obtain extremely accurate geometric precision and surface finish. Usually, this is the last grinding step in the mechanical production chain to improve or correct the geometry of parts from sintering, sawing, molding or similar operations with an accuracy of 0.001m. Depending on the application, grinding from only one surface is also possible. Widely used in double-sided precision grinding of automotive steering valve parts, refrigeration compressor parts, oil pump nozzle parts, engine parts, high-precision bearings, seals and other products.

When the machine is working, the upper and lower grinding discs and the planet wheel rotate simultaneously to drive the workpiece to reciprocate between the two grinding discs. When grinding, you can use diamond grinding disc, CBN (cubic boron nitride) grinding disc, cast iron disc to process workpieces to meet the different requirements of various products, so as to achieve double-sided precision grinding on workpieces made of various materials.


  • Controlled by computer and numerical control system.
  • Touch screen control interface, simple and intuitive, easy to operate.
  • High precision size and tolerance control.
  • Equipped with constant temperature circulation cooling filter system.
  • Powerful fault diagnosis function, timely and effective troubleshooting.
  • Grinding power over-limit alarm function.
  • Many choice functions, such as adjustment of processing technology, countdown, etc.
  • Program data recording speed during processing.
  • Maintenance-free or less maintenance, extremely low operation cost.
  • Roughness ≤Ra0.05μm and flatness ≤0.001mm can be obtained with different abrasives and speeds.
  • Unique processing technology and professional technical knowledge, tailor-made processing solutions for customers, improve production capacity.

Technical Parameters

Grinding Disc Size (mm) φ700xφ300×55
Maximum Processing Diameter (mm) φ200
Top Disc Motor Power (KW) 5.5, 7.5
Top Disc Ration Speed (r / min) 0~80
Bottom Disk Motor Power (KW) 5.5, 7.5
Bottom Disk Ration Speed (r / min) 0~80
Inner Ring MotorPower (KW)
Inner Ring Ration Speed (r / min) 0~60
Machine inlet Pressure (Pa) 0.6MPa
Machine Tool Dimension LXBXH (mm) 3060x2100x2250
Machine Tool Weight (Kg) 3000
Typical Workpiece Robotic joint bearings, hard alloys, high-speed electric spindle bearings, spacers
Parallelism (mm) 0.008mm
Flatness (mm) 0.008mm
Same Disc Isoheight Difference (mm) ±0.001mm
Different Discs Isoheight difference (mm) ±0.001mm
Surface Roughness (μm) Ra0.05μm~Ra0.8μm
Control Method PLC control, achieve 3, 5, 7 pressure control, automatic precision compensation
Measurement Method Non-contact measurement, Contact measurement


1.Hydraulic components: vane pump, steering valve, plunger pump, gasoline pump, hydraulic motor, etc.

2.Compressor parts: air conditioner compressor blades, pistons, cylinders, refrigerator compressor valve plates, etc.

3.Engine parts: internal combustion chamber parts, booster pump parts, nozzle / pump parts, etc.

4.Others: Double-sided grinding of high-precision bearing rollers and ferrules, seals, piston rings, measuring tools, molds, meters, hard alloy blades, ceramic valve cores, magnetic materials and other products.

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