Linear shaft motor stage offers nanoprecision

Nippon Pulse America released their SCR100 stage, which has a coreless direct drive motor, which allows for higher accuracy and precision.


Nippon Pulse America SCR100 stage is an ultra high precision, compact single axis stage that integrates a slide guide, encoder, and Linear Shaft Motor. The SCR100 stage reportedly offers a wide range of advantages for ultra high performance and accuracy applications. The Linear Shaft Motor is a coreless direct drive linear motor, which has zero cogging. This allows for higher resolution, speed, and continuous force than standard stepper motors and piezo servomotors, the company said.

The SCR100 stage is a moving magnet design, which locates all cables and connectors in the stationary base. The resulting absence of any moving cable is clean and compact and eliminates motion errors due to cable forces. The precision ground cross roller way provides high stiffness and smooth motion. Together they are capable of supporting higher torque levels due to offset loads with travels from 50 mm to 300 mm. The non-contact Linear Shaft Motor and optical linear encoders are self-contained inside the stage, making it a low-profile compact solution. The built-in non-contact optical linear encoder is available with resolutions from 1 micron to 10 nanometers with digital output. The sub-micron resolution results in a high accuracy stage, which is laser tested for optimum performance.

The Nippon Pulse Linear Shaft Motor has apparently gained a reputation of servicing the very demanding, ultra high precision motion control applications in a number of markets. Those markets include Metrology, Spectroscopy, Digital pathology, Microscopy, Disk drive, Semiconductor fabrication, Biomedical, Pharmaceutical, Life Sciences, Cell Imaging, Particle Analysis, Medical Device, Stent fabrication, National Laboratories, Photonics/Telecom, Aerospace and Defense and Genomics.

The SCR100 stage has the added benefit that any standard digital servo driver can drive the SCR100 stage. Any two SCR stages will bolt directly together to form a very stiff, compact X-Y stage. Two SCR stages can be supplied compounded as an X-Y stage to insure true orthogonal orientation. The SCR100-50, with 100-nanometer resolution, has options including DI Water or Vacuum compatible, open frame, and custom configurations.

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