Optical grinding machine OGM series

CNChydrostatichigh-precision

The ultra-precision freeform grinding of large optics requires a machine that can offer ultimate stiffness, thermal stability and the flexibility to meet the needs of your application. The Cranfield Precision OGM delivers on all counts. LARGE OPTICAL COMPONENT GRINDING If you’re looking for a machine capable of ultra-precision freeform grinding of large optics, you’ve come to the right place. The OGM is used to produce freeform mirrors used in extreme ultra-violet semiconductor lithography, as well as mirrors for space telescopes. ADVANCED SOFTWARE SOLUTIONS The Cranfield Precision OGM is equipped with our MöbiusCAM software. This software performs the computations required to generate associated machine commands and brings additional precision and flexibilty to the machine. Furthermore, this standalone software allows you to select from a number of surface definitions and operations, including: Spheric, aspheric and freeform mode Spiral and raster grinding path modes Edging: circular boundary Edging: non-symmetrical edge profiling Chamfering Light weighting On-machine metrology INNOVATIVE SYSTEM TO MEET YOUR SPECIFICATIONS The Cranfield Precision OGM also features our minimal hysteresis, and patented vertical axis counterbalance. This innovative system enables us to hold tight specifications, minimize form errors and sub-surface damage. ADDITIONAL FEATURES A number of design features enable us to meet the specific demands of these challenging industries, which include: Hydrostatic bearings for very high stiffness and damping, enabling ultimate precision Twin linear motors, eliminating backlash and ensuring complete control FEA optimized base and bridge