Its large aperture rotary stages deliver zero backlash as well as no gear vibration or gear wear. The new direct drive AccuRings are much faster than gear and worm drives. The stage’s repeatability and system accuracy are maintained over long period of time, while its higher accuracy and zero backlash enables customers to yield more consistent and accurate products.

The new rotary stages are suitable for various applications such as single and multi-axis laser testing, inertial navigation device testing, antenna testing, precision wafer inspection, high-accuracy laser machining and photonic component alignment.

Unlike traditional transmission based rotary tables with the same payload and apertures capacity that can operate to 10rpm or below, the direct drive AccuRing stages can deliver up to 300 rpm continuous rotation.

Its angular contact bearings optimize performance with respect to moment stiffness, wobble and rotating friction. It also features a precision-machined rotating shaft that further reduces wobble.

The AccuRing employs brushless modular RotoLinear motor technology to maximize positioning performance. The motor offers all the benefits of a brushless direct drive motor — no gear trains to maintain, no brushes to wear as well as high speeds and high acceleration. This effectively makes the direct drive rotary stages ideally suited for applications that require smooth scan velocity, contoured motion and precise incremental steps.

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The lightweight design feature low 32 mm profile height and incorporates anodized aluminum body with pre-loaded ball bearings with run-outs of 5 microns. This proprietary bearing design provides smooth rotation with minimal wobble.

A precision ground worm gear produces consistent driving torque to the rotor and eliminates variations in the motor current.

RTHM-100 stages feature an angular resolution 0.1 arc-sec, which may be achieved with either DC Servo or stepper motor controls.

The stages are equipped with a reference home sensor. RTHM-100 stages can run in continuous or start/stop rotation modes and mounted horizontally or vertically.

These stages feature zero backlash, large 50 mm center aperture and can rotate loads of 20 kg over unlimited rotation angle.

IntelLiDrives, Inc.
www.intellidrives.com

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