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Motorized Actuator, High-Precision, 25 mm Travel Range


  • Travel Range
    25 mm
  • Maximum Speed
    25 mm/s
  • Minimum Incremental Motion
    0.10 μm
  • Push Force
    40 N
  • Accuracy, Typical
    ±0.5 µm
  • Accuracy, Guaranteed
    ±1.0 µm
  • Bi-directional Repeatability, Typical
    ±0.2 µm
  • Bi-directional Repeatability, Guaranteed
    ±0.30 µm
  • Uni-directional Repeatability, Typical
    ±0.04 µm
  • Uni-directional Repeatability, Guaranteed
    ±0.10 µm
  • Drive Screw Pitch
    1 mm
  • Origin
    Optical, centered
  • Origin Repeatability
    ±0.05 µm
  • Encoder Resolution
    0.1 µm
  • Limit Switches
  • Cable Length
    1.5 m
  • Connectors
    DB25 - Male
  • Power Consumption
    48 W
  • Weight
    1.0 kg
  • MTBF
    20,000 h (25% load, 30% duty cycle)
  • Maximum Power Consumption
    30 W
  • Compliance
    RoHS 3, CE


Single Rail Linear Stage Applications

The VP-25AA's actuator top rail can be used as a single-rail linear stage to position small and light weight parts with the optional 561-RAIL rails. It can be used to position optical fibers, micro-optics, sensors, or other small and lightweight parts. For added versatility, a mounting interface for a dovetail rail compatible with the popular ULTRAlign™ positioning system is provided. This system offers a wide selection of interchangeable mounts for optical fibers, fiber arrays, objectives, or GRIN lenses in a variety of fiber alignment applications.

Non-rotating tip

The non-rotating tip is essential to eliminate undesirable periodic motion variations caused by the variable contact made between the actuator tip and the mating surface.

Integrated Linear Encoder

The VP-25AA is based on the same innovative design used in the VP-25XA linear stages and features a high-resolution linear scale encoder for exceptional repeatability and accuracy. The scale is fixed on a moving rail to which the actuator’s tip is permanently attached without any contact to the mounting shaft. This concept eliminates all drivetrain induced motion errors and minimizes hysteresis between the scale and the actuator tip.

Compatible motion controllers for the VP-25AA actuator are: