The VP-25AA is a high-precision motorized actuator with a 25 mm travel range, designed for accurate positioning of small, lightweight components such as optical fibers and micro-optics. It features a non-rotating tip to eliminate periodic motion variations and an integrated linear encoder with 0.1 μm resolution for high repeatability and accuracy. The actuator uses a backlash-free ball screw drive with a 1 mm pitch and recirculating ball bearings. Uni-directional repeatability is guaranteed at ±0.10 μm, and bi-directional repeatability with compensation is ±0.30 μm. It has a maximum speed of 25 mm/s and a push force of 40 N. The base is aluminum, and the unit includes optical limit and origin switches located at the center of travel. A mounting interface compatible with the ULTRAlign™ dovetail rail system is provided. Dimensions are 165.8 mm length by 27 mm width by 23 mm height. A 1.5 m cable is included.
The VP-25AA actuators combine precise positioning with highly reliable performance. It is based on the same innovative design used in the VP-25XA linear stages and features a high-resolution linear scale 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. The non-rotating tip is essential to avoid undesirable periodic motion variations caused by the variable contact between the actuator tip and the mating surface.The top rail of the VP-25AA can also be used as a single-rail linear stage 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.
| Newport MKS | |
|---|---|
| Product Category | Linear Actuators |
| Product Number | VP-25AA |
| Product Name | Motorized Actuator, High-Precision, 25 mm Travel Range |
| Stroke or X-Axis Travel | 0.9843 inch (25 mm) |
