Ultra-Precision Driven Rotary Motion

ABTech's model AT-100 air bearing rotary stage provides zero non-repeat error motion combined with a "High Torque", brushless DC servo motor for ultra-smooth and precise rotary motion.

The air bearing spindle is contructed of hardened stainless steel for durability and long life, providing added value over conventional aluminum spindles.

The spindle motor is designed to accomodate a wide range of precision motion applications such as ultra precision scanning, velocity control, speed regulation and precision indexing with angular step accuracies to ±0.0005° available. Indexing cycles can be variable and range in example from a 0.1° per a 20/30sec move window to a rapid 180°/sec to 360°/sec bi-directional index depending on the encoder resolution and control provided.

ABTech's modular design approach facilitates six levels of system packaging to optimize the price for performance required in your application.

Some typical applications: Ultra-smooth scanning, Precision velocity & speed control, Sample indexing for image aquisition systems (Goniostat Omega axis), Micro-machining, Optical metrology and circular geometry gages (reference axis).

Click here for high-resolution, printable data sheet (141K PDF)

Features

• "Zero" static friction
• Ultra-smooth motion with absolute repeatability
• Radial/axial error motion: 0.125µm (5.0µ") *
• Variable speed control
• Rapid bi-directional indexing, up to 360°/sec **
• Angular step accuracy: ±0.0005° **
• High load capacity and stiffness
• High torque, coggless brushless DC motor
• Non-contact drive (no drive train parts to wear)
• Sinusoidal or trapezoidal commutation
• Durable 440C stainless steel construction

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