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MICRO-CONTROLE / Spectra-Physics
High-Performance Precision Motorized Actuator VP-25AA

High-Performance Precision Motorized Actuator VP-25AA

Product catalog summary

Overview: The VP-25AA is a high-performance precision motorized actuator designed for precise positioning and reliable performance. It features a high-resolution linear scale for exceptional repeatability and accuracy, eliminating drivetrain-induced motion errors and minimizing hysteresis.

Design Details: The actuator is constructed with an aluminum base and recirculating ball bearings. It uses a backlash-free ball screw drive mechanism with a 1 mm pitch. The feedback system includes a linear steel scale with a 20 µm signal period and 0.1 µm resolution. It is equipped with optical limit switches and a DC servo motor with a tachometer.

Key Features: The VP-25AA offers integrated linear encoding for high repeatability, a non-rotating tip to avoid motion variations, and a low friction design for high sensitivity. It includes a manual adjustment knob and has a mean time between failures (MTBF) of 20,000 hours.

Specifications: The actuator has a travel range of 25 mm, resolution and minimum incremental motion of 0.1 µm, uni-directional repeatability of 0.1 µm, reversal value (hysteresis) of 0.5 µm, on-axis accuracy of 2 µm, maximum speed of 25 mm/s, and an axial load capacity of 40 N.

Compatibility and Options: The VP-25AA can be used as a single-rail linear stage for positioning small and lightweight parts. It is compatible with the ULTRAlign positioning system and offers interchangeable mounts for various optical components. Recommended motion controllers include VP-25XA 7S, ESP100, ESP300, and MM4006.

Ordering Information: The VP-25AA actuator and optional dovetail rails (561-RAIL-3.7 and 561-RAIL-1) are available for purchase. The actuator is suitable for applications requiring precise positioning of optical fibers, micro-optics, sensors, and other components.

Contact Information: The document provides contact details for various international offices, including Belgium, Denmark, Finland, Germany, Israel, Italy, Netherlands, Norway, Poland, Portugal, Spain, Sweden, Switzerland, United Kingdom, and France.

Catalog excerpts

High-Performance Precision Motorized Actuator VP-25AA-1

VP-25AA High-Performance Precision Motorized Actuator The VP-25AA actuator combines precise positioning with highly reliable performance. It is based on the same innovative design as used in our 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 also essential to avoid undesirable periodic motion variations caused by variable contact made 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 to our popular ULTRAlign positioning system is provided. This system offers a whole selection of interchangeable mounts for optical fibers, fiber arrays, objectives, or GRIN lenses. VP-25AA-DS (07/01) 1 Design Details Base Material Aluminum Bearings Recirculating ball bearings Drive Mechanism Backlash-free ball screw Drive Screw Pitch 1 mm Feedback Linear steel scale, 20 ìm signal period, 0.1 ìm resolution Limit Switches Optical Origin Optical, at center of travel Motor DC servo motor with tachometer UE25CC Cable Length 1.5 m MTBF 20,000 hours Key Features • Integrated linear encoder for exceptional repeatability and accuracy • Non-rotating tip avoids periodic motion variations • Very low friction design provides high sensitivity with 0.1 ìm minimum incremental motion • Convenient manual adjustment knob • 20,000 hours MTBF reliability

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High-Performance Precision Motorized Actuator VP-25AA-2

2 VP-25AA-DS (07/01) Belgium Newport BV, filiaal Belgie Tel: +32-(0)16-402927 Fax: +32-(0)16-402227 Danemark Gamma Optronik AB Tel: +46-(0)18-56-58-30 Fax: +46-(0)18-69-66-66 Finland R.T.S. Cheos Oy Tel: +358-(0)9-7518-9100 Fax: +358-(0)9-7518-9194 Germany Newport GmbH Tel: +49-(0)6151-3621-0 Fax: +49-(0)6151-3621-52 Israel Lahat Technologies LTD Tel: +972-(0)4-999-0151 Fax: +972-(0)4-999-0826 Italy Newport/Micro-Controle Italia Tel: +39-(0)2-92-90-921 Fax: +39-(0)2-92-32-448 Netherlands - Luxembourg Newport B.V. Tel: +31-(0)30-65-92111 Fax: +31-(0)30-65-92120 Norway W. Tverdal A/S Tel: +47-31-28-47-33...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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