Pro stages allow medium-precision positioning

An Aerotech product story
Edited by the Engineeringtalk editorial team May 27, 2009

Aerotech has released the Pro linear stage range in 68 standard models, for high throughput, medium-precision positioning.

The modular range features Aerotech's hard cover/side-seal system, which provides entire stage protection for arduous manufacturing environments such as laser machining.

Aerotech has completed and fully launched its low-cost PRO series linear stage range.

Aerotech has completed and fully launched its low-cost PRO series linear stage range.

With high-load capacity linear-motion guide bearings and servomotor-driven precision ballscrews, available in normal or 'faster' pitches for speeds faster than 1.4m/sec, the range is well suited to demanding multi-axis positioning applications across manufacturing and test.

The Pro series is an adaptable range of positioning stages that allows OEMs and system integrators to select and mix models to exactly match their machine-building requirements.

For typical applications, the 115 and 165mm narrow-width stages can be used for upper axes.

The wide-base 225 and 280mm wide stages fulfill load bearing support in lower axes.

Most combinations for multi-axis positioning are possible with X-Y combinations from just 50 x 50mm, and gantry-style multi-axis designs to beyond 1.5m travel.

Longer, custom-designed travel options for each width are also possible where flat mounting and adequate stage support can be maintained.

The modular range has similar accuracy, repeatability and environmental specifications throughout, as well as a consistently neat and stylish visual appearance.

A choice of a standard 5mm pitch and higher speed 20 or 25mm pitch ball-screws also allows throughput speeds to be increased in applications where positional specifications are less demanding.

Across the range, repeatability is within +/- 1um for 5mm pitch ballscrews and +/- 2.5um for 25mm pitch variants.

Positioning resolution, with a 2500-line encoder, is 0.5um for the 5mm pitch ballscrew version, with custom encoder options available for higher resolution if required.

For applications where the Pro series' maximum speeds and/or positional accuracy characteristics are a limiting factor, the range can be mixed with linear-motor driven alternatives that utilise the same hard-top/side-sealed design.

Aerotech's ALS series direct-drive technology stages include linear encoder feedback and increased acceleration and top-speed performance along with augmented accuracy and precision.

Aerotech also plans to introduce form-fit alternatives across the Pro range using its direct-drive linear servo technology.

Each Pro series stage is offered with options including tabletop hole pattern to suit X-Y or rotary stage mounting - or no tabletop fitted.

Comprehensive alternatives also extend to NEMA 23 or 34 servomotor selection and orientation options that include space-saving fold back motor designs.

Multi-axis alignment, test specifications, limit switches and z-axis brackets are also available and priced on a request basis.

The Pro series' one-piece hard cover and vertical side-seal arrangement protect and deflect debris away from the internal stage mechanics, offering a distinct advantage over traditional bellows or sliding top-seal designs.

An optional brush-cleaning strip can be fitted to the moving carriage to remove the build up of machining waste and prevent debris from accumulating on the hard cover.

The improved level of protection extends working life and helps to reduce downtime and maintenance while maximising production throughput and up-time.

The Pro series stages can be supplied stand-alone, with matching Aerotech servo amplifiers or as a part of complete ready-to-run systems with a choice of Aerotech motion controllers.

Find out more about this article. Request a brochure, download technical specifications and request samples here.

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