New V-610 Rotary Positioner is Used for Fast and Precise Rotation of Samples and Optics

Press Release Summary:

  • Applications include medical, metrology, precision microassembly, bio-research, optical inspection, and semiconductor test and manufacture
  • Clear aperture of 25mm (1”) for transmissive-light applications
  • Can combine with PI’s H-811 hexapod 6DOF parallel positioner and add unlimited rotation to compact 6-axis alignment system

Original Press Release:

28mm Low-Profile Rotary Positioner with High Force Torque Motor is Mountable on 6-Axis Hexapod

This compact rotary positioner, new from PI, is engineered for fast and precise rotation of samples and optics in applications including medical, metrology, precision microassembly, bio-research, optical inspection, and semiconductor test and manufacture.

July 2019, Auburn, MA – Nanopositioning leader PI expands its PIMag® series of high dynamics linear and rotary positioning systems with a new high-performance rotation stage.

High Force Torque Motor, Direct Drive, Optional Brake

The V-610 is equipped with a high-force 3-phase torque motor direct incremental encoder for position feedback and closed-loop operation. Direct drive torque motors do not require gears and mechanical components, eliminating friction in the drive train. Despite its compact size, the ironless motor provides a peak torque of 1.2Nm (10.6 in-lbf). Ironless motors provide smoother running with better velocity control due to the lack of cogging effects caused by permanent magnets.

High Resolution, Velocity and Precision

The torque motor provides maximum angular velocity of 540°/sec (90 RPM). The integrated direct measuring optical encoder resolves angular motion down to 9µrad. In closed-loop operation, minimal incremental motion of 27µrad can be achieved. To hold a position without the need to keep the motor energized, an electromagnetic safety brake is offered as an option.

Low Profile, 1” Aperture, Combination with 6-DOF Motion Systems

The V-610 features a very low profile of only 28mm (1.1 inch) allowing integration into tight spaces. The clear aperture of 25mm (1”) is an advantage in transmissive-light applications. The V-610 can also be combined with PI’s H-811 hexapod 6DOF parallel positioner, adding unlimited rotation to this compact 6-axis alignment system. An adapter plate for optical tables is also available.

Computer Control

A variety of precision motion controllers are offered, from modular to bench top devices. For the highest performance, PI recommends the ACS product line of EtherCat compatible precision motion controllers.

Standard and Custom

PI has in-house engineered solutions with over 4 decades of experience working with customers to provide products that meet application demands, and can quickly modify existing product designs or provide a fully customized OEM part to fit the exact requirements of the application.

About PI

PI is a leading manufacturer of air bearing stages, piezoelectric solutions, precision motion control equipment, and hexapod parallel-kinematics for semiconductor applications, photonics, bio-nano-technology and medical engineering. PI has been developing and manufacturing standard & custom precision products with piezoceramic and electromagnetic drives for 4 decades. The company has been ISO 9001 certified since 1994 and provides innovative, high-quality solutions for OEM and research. The PI group employs more than 1,300 people worldwide in 15 subsidiaries and R&D / engineering centers on 3 continents.

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