Rotary Stages

Alpha VDT Series

VDT Series Rotary Tables

Wittenstein’s VDT+, flange version of the alpha servo worm gear offers unique variety for new applications . . . bringing the servo worm gear to a new level. The improved range of V-Drive+ boasts:

  • Optimized hollow-flank teeth for accuracy and low  backlash
  • 50% more torque
  • 97% efficiencies - the highest for servo worm gears on the market

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Parker Daedal RT Series

RT Series Precision Rotary Tables

The 200RT Series Rotary Tables are designed for precise motor-driven rotary positioning and indexing. These tables are designed to function independently or in conjunction with linear tables used for precision automation applications. Their low profile design minimizes stack height in multi-axis configurations and enables them to fit in many places where other motorized rotary devices cannot. Models are available in 5, 6, 8, 10, or 12 inch diameters and are offered with four gear ratios making it convenient to match size, speed, and load requirements.

  • Highly repeatable indexing (12 arc sec.)
  • Load capacities to 200 lbs.
  • 360 degrees continuous travel
  • Performance tested worm gear drive
  • Selectable table sizes and drive ratio
  • Dual race angular contact support bearing

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Parker RM Series

RM Series Precision Rotary Tables

The Rotary Stage Series offers an unparalleled combination of high accuracy and high load capacity. These rotary stages utilize a precision worm gear with the worm “flexed” against the gear to ensure a proper mesh. This feature provides high repeatability with very smooth operation. Additionally, the rotary stages incorporate an oversized preloaded cross roller bearing, offering exceptional stiffness and load capacity.
  • Unique self-compensating preload to limit backlash
  • Solid or thru bore construction
  • Robust bearing design for high-load capacity(Max 460kg)
  • Built-in limit switches
  • Aluminum construction with stainless steel top plate

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Primatics PDR Series

PDR Series Precision Direct Drive Rotary Tables

Primatics PDR rotary tables are among the most advanced direct drive tables available. They feature a high performance direct drive motor that creates sub arc-second repeatability and fast settling times, making the PDR series ideal for semiconductor wafer inspection, high speed laser machining & precision metrology. The compact design also has a smaller footprint than comparable worm drives

  • Direct drive continuous rotary motion
  • Space saving, compact design, the PDR is among the most compact direct drive stage on the market.
  • 110-210 mm diameter model's
  • Low maintenance & longer life; integrated brushless servo direct drive motor eliminates gear wear, backlash and torque variation associated with worm drive and belt driven stages.
  • High pole count aids in obtaining low velocity ripple.
  • Resolutions to 0.18 arc-seconds
  • Clean design; all multiplication electronics are internal and there is only one cable necessary for external connections.
  • Class 10 cleanroom option

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Primatics PLR Series

PLR Series Precision Rotary Tables

Primatics PLR Series rotary positioning tables offer a variety of options for systems in need of small, stiff angular corrections. An innovative drive system creates arc-second accuracy and fast settling times, making the PLR Series ideal for fine position correction in assembly and optical applications where worm drives don't provide the necessary accuracy, throughput or life.

    • +/- 6 degrees of rotation
    • Class 3 preloaded precision ballscrew with a brushless or stepper motor drivetrain for high precision
    • Resolution to 0.2 arc-seconds
    • Precision cross-roller bearings deliver high capacity, excellent rigidity and long life.
    • Very stiff rotational correction stage for moderate payloads

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