Aerotech’s WaferMax T rotary stage is an excellent choice for applications that require high performance in a low-height package. Originally designed for the demands of precision wafer inspection, the WaferMax T has been applied to a multitude of applications.
- Low profile for space-conscious applications
- Direct-drive, brushless, slotless servomotor
- Direct-coupled, high-accuracy rotary encoder
|Model||Aperture||Maximum Speed||Accuracy||Maximum Load||Additional information|
|WaferMax T||25.4 mm||400 rpm||±5 arc sec||40 kg||View source|
Superior Mechanical Design
Angular contact bearings are used to maximize performance with respect to wobble, moment stiffness and rotating friction. A thick-walled, precision-ground shaft further minimizes wobble.
Cable management is a snap with integral motor power and feedback connectors. Because the WaferMax T is a self-contained unit, it can be integrated easily into multi-stage stacks. Either a service loop or an integrated Aerotech cable management system (CMS) can be provided for a highly reliable solution.
To maximize positioning performance, the WaferMax T utilizes Aerotech’s S-series brushless, slotless motor. This motor has all of the advantages of a brushless direct-drive motor — no brushes to wear, no gear trains to maintain and high acceleration and high speeds. Since it is a slotless, ironless design, there is zero cogging, meaning that there is absolutely no torque ripple. This makes the WaferMax T ideal for applications requiring outstanding contoured motion, smooth scan velocity or precise incremental steps. The low inertia and zero backlash make the WaferMax T the ideal solution for applications requiring frequent directional changes.
Performance is assured with a 10,000 lines per revolution encoder that results in 0.065 arc sec resolution. A 2048 line option is also available. The motor and high-performance rotary encoder are directly coupled to a common shaft.
Aerotech manufactures a wide range of servo amplifiers and advanced controllers to provide a complete, integrated package.