Aerotech¡¯s ABS2000 high speed, air-bearing spindle(pic)

Aimed at data storage, wafer processing, high speed imaging and diamond turning applications, Aerotech¡¯s new ABS2000 air-bearing spindle combines a 6000 rpm cog-free, direct-drive brushless servo motor with a directly coupled high-accuracy rotary encoder for sub arc-second angular positioning and exceptional speed capability. The new air bearing spindle is balanced to ISO 1940 G 0.4 - the highest grade for rigid rotors ensuring extremely low levels of vibration for the highest possible positioning performance. Furthermore, the ABS2000 includes a unique, externally accessed balancing system that allows balance adjustment when the payload is in place; further improving system response, production throughput and quality performance. The ABS2000 is designed and certified for Class-1 clean room operation with a labyrinth seal arrangement minimising particle migration from the spindle. An optional rotary union may be specified for vacuum supply and customised versions can include mounting plates for optics and vacuum chucks with automated parts handling. Specialised versions for ESD can also be supplied including provision for grounding balls.