The Cranfield Precision Ultra Precision Spindle is a highly accurate machine tool component available seperatly or can be incorporated into a machine design.
Specification:
Speed range 0-900 rpm
Peak torque 110 Nm
Continous torque 35 Nm
Load capacity at spindle nose:
Radial 1000kg
Axial 1200 Kg
Stiffness: Radial 1000 N per micron Axial 800 N per micron
Error Motion:
Synchronous < 100nm
Asynchronous < 75nm (system dep.)
Integral brushless DC motor
400 Nm emergency brake
15 Nm metrology clamp
Hydrostatic supply pressure 70 bar
Integral motor cooling jacket
Options:
Optical encoder for C-axis capability
±0.01°C 70 bar hydraulic power pack
Custom mounting interface
Cranfield Precision has designed a Roll Turning Machine for production level machining of optical quality components.

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