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High Speed Air Bearing Spindle with Touch Pad Motion Controller

This ultra-precision air bearing spindle was developed by ABTech as a component for a customer's fly cutter/ruling machine. The customer wanted a new level of performance so they could produce a more accurate part right off their machine. ABTech designed this 5" high speed spindle with 50% better stiffness than their previous option and met their challenging requirement.

The controller was programmed for easy operator input and monitoring of speed set points with digital readout and "start", "stop" and "coast" buttons. A built in pressure sensor prevents the motor from turning the air bearing if a drop in air pressure is detected.

Features: 

• Rotary air bearing spindle with 5" diameter thrust plate
• 3.125" diameter x 7.0" long main shaft
• Flange mount design
• DC brushless servo motor drive
• High resolution rotary encoder
• Digital amplifier and preprogrammed controller with DRO
• Max speed: 6,000 rpm
• Radial error motion: < 4.0 µ" @ 1" from spindle nose
• Axial error motion: 1.15 µ" 
• Radial asynchronous error motion: < 2.0 µ" @ 1" from spindle nose
• Air consumption: 1.5 scfm
• Request information on this product

Dovetail Stage with Granite Rail

ABTech recently customized the design of the LAB-D series linear air bearing to incorporate a high grade granite dovetail rail for added thermal stability. The sides of the granite rail were lapped to precisely match the angle of the stainless steel sides of the air bearing carriage eliminating additional moving parts and increasing the air bearing surface area for additional stiffness.

Features: 

• Linear air bearing with fully supported granite dovetail rail
• 6" x 6" stainless steel carriage and base
• Excellent thermal stability
• Better than 15 µ" straightness over 2" travel length
• Available in custom rail lengths and carriage sizes
• Request information on this product

5-Axis Air Bearing Assembly Station

Least incremental move capabilities of 4 millionths of an inch (0.1 micron)

Operator control panel with pulse generator hand wheel and push button controls

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Air Bearing Drum Roller Assembly

ABTech inc designed and manufactured an ultra-precision air bearing drum roller system for a leading worldwide manufacturer of data storage systems for thin film processing in suspension drive assemblies. 

Features: 

• High accuracy rotary encoder: 0.5 arcsec resolution
• Velocity control to better than +/- 1%
• Speed range: 0 to 30 rpm
• Brushless dc motor
• Air bearing stiffness: > 1,000,000 lbs/in
• Outer drum T.I.R.: < 1 µm
• Load capacity: 250 lbs
• Download a printable PDF datahsheet