Cranfield Precision OGM

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Fives cranfield precision ogm-FIVES Fives in Grinding | Ultra Precision

克兰菲尔德精密 OGM系列高精度镜面铣磨机特点:静压轴承,直线电机驱动,FEA优化床身和横梁。OGM的加工工件尺寸分别为800mm,1200mm,1600mm和2000mm,厚度可达500mm。

3rd generation large optics grinder

The Cranfield Precision OGM has major improvements in stiffness and flexibility from the previous large format optical grinding machines. The patented counterbalance system allows the Cranfield Precision OGM to grind optics with less sub surface damage. In addition it is possible to measure the optic  with on board metrology or an overhead interferometer without removal from the machine.

Control and accuracy

Machine control and accuracy is maximized with available advanced optical metrology equipment and Cranfield Precision’s CNC 6400 Control System.

Cranfield Precision OGM machine capacity range

Cranfield Precision OGM800, Cranfield Precision OGM1200, Cranfield Precision OGM1600 and Cranfield Precision OGM2000

Key Features

  • Hydrostatic bearings
  • Twin linear motors on each linear axis
  • Twin linear encoders on each linear axis
  • Zero hysteresis, patented vertical axis linear motor counter force mechanism
  • FEA optimized bridge and base
  • Direct drive work spindle and rotary table
  • In-situ measuring probe
  • Secondary spindle for I/D O/D grinding and light-weighting
  • Wheel dressing station 


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