High Speed Linear Actuators – Direct Drive Linear Modules – High Performance Actuators

PI’s high-performance linear actuators provide a unique combination of high accuracy and velocity. Multiple drive concepts are available: compact linear actuators based on voice-coil linear motors, for strokes from a few millimeters to an inch and longer stroke actuators based on 3-phase linear motors. Both linear motor types are frictionless and wear free. Guiding systems usually consist of highly accurate crossed roller bearings. For the ultimate precision, performance and lifetime, completely wear free air bearings and flexure guiding systems are also available. PI also offers high precision, rod-type ball-screw linear actuators and rod-less linear module actuators. All units come equipped with direct-measuring linear incremental encoders or absolute encoders for the highest closed-loop precision and step and settle performance.

High Speed Rodless Linear Actuator Modules for Long Travel Ranges to 1.2m

Ideal for Performance Automation Applications

These fast, rodless linear actuators are driven by a high speed 3-phase linear motor and can achieve velocities to 5m/sec, fast acceleration up to 5g’s, and travel ranges up to 1.2m (47”).  Three-phase electromagnetic linear motors work on a non-contact principle and provide high speed motion and extremely long lifetime. They are ideal for high performance, precision automation applications.  All units are equipped with linear encoders for position feedback.

The linear modules use a single guiding rail and are well suited as high performance actuators and can form the basis of a gantry system.

V-855 High-Speed Linear Module
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V-855 High-Speed Linear Module

Linear Motor, 4m/sec 600N Load

  • 400 - 1200mm travel
  • 0.1µm min. inc. motion
  • <1nm encoder res.
  • 5m/sec max. velocity
  • 90N peak force
  • Excellent value for precision automation
V-857 High-Speed Linear Module
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V-857 High-Speed Linear Module

Linear Motor, 5m/sec 1000N Load

  • 400 - 1200mm travel
  • 0.1µm min. inc. motion
  • <1nm encoder res.
  • 5m/sec max. velocity
  • 420N peak force
  • Excellent value for precision automation
V-412 High Speed Linear Stage
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V-412 High Speed Linear Stage

Linear Motor 400N Load

  • 102 - 610mm (4”-24”) travel
  • 5nm to 10nm min. inc. motion
  • 1nm encoder res.
  • 2m/sec max. velocity
  • 151N peak force
  • Absolute encoder option

Compact High-Speed Actuators Based on Voice-Coil Linear Motors

Travel Ranges to 1 Inch with Force Control Option

PI provides voice coil linear actuators with mechanical bearings and for the highest performance requirements offers friction-free and wear-free flexure guides and air bearing guides. These actuators are fully self-contained and PI can provide custom voice coils and linear motors for OEM precision motion applications. All Actuators are equipped with direct position feedback for closed-loop servo control, and we offer a closed-loop force control option on some of these models.

V-273 Voice Coil Actuator
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V-273 Voice Coil Actuator

Force Sensor Option

  • 20mm travel
  • 10nm linear encoder resolution
  • 100mm/sec max. velocity
  • 6N push/pull force
  • 1mN force sensor option
V-275 Voice Coil Actuator
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V-275 Voice Coil Actuator

High-Speed, Force Sensor Option

  • 10mm travel
  • 10nm linear encoder resolution
  • 600mm/sec max. velocity
  • 15N push/pull force
  • 1mN force sensor option
V-277 Voice Coil Actuator
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V-277 Voice Coil Actuator

High-Speed, Force Sensor Option

  • 15mm travel
  • 10nm linear encoder resolution
  • 750mm/sec max. velocity
  • 20N push/pull force
  • 1mN force sensor option
This miniature positioner is driven by a single phase linear motor (voice-coil) and guided by flexures for long service life. Closed and open-loop operation is possible, and the integrated 100 nanometer linear encoder provides reliable position control and repeatable accuracy. PI's C-413 motion controller features 10kHz servo update rate.
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Custom Example: V-900KPIC Concept Mini Vertical Positioner

Voice Coil and Flexures

  • 1.5mm travel range
  • 0.1µm resolution linear encoder
  • Flexure guides for zero wear
  • 250/45mm/sec max. velocity (open/closed loop)
PIglide VC air bearing positioning stages are voice coil driven with fully preloaded air bearings and optical linear encoders. These stages are ideally suited for many high precision applications where long travels are not required, such as autofocus and scanning applications. The non-contact design also makes these stages ideal for cleanroom applications. Optional bellows protect the bearing from contamination. Low moving mass means high accelerations and fast turnaround times.
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A-131 Voice Coil Positioner

For Fast Scanning/Autofocus

  • 1” travel
  • Optional bellows
  • 1nm resolution
  • 8g max. acceleration

Fast, Compact Rodless Actuators driven by Voice-Coil Linear Motors

Travel Ranges 7mm to 25mm – Crossed-Rollers and Air Bearing Options

These rodless compact actuators use cross-roller bearings and air bearings for the highest geometric accuracy (straightness, flatness) as well as excellent repeatability. High resolution, closed-loop linear encoder feedback makes them a premier choice for precision nanopositioning requirements. Motion ranges from 7mm to 25mm (1 inch).

A-142 Mini Voice Coil Linear Slide with Air Bearings
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A-142 Mini Voice Coil Linear Slide

Air Bearings, Frictionless, Fast

  • 10mm travel
  • 3kg load
  • 5nm encoder, 0.1µm straightness
  • 75x80mm table; 27mm height
  • 450mm/sec, 2g acceleration
  • 20N push/pull force
V-522/4/8 Voice Coil Stage
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V-522/4/8 Voice Coil Stage

Ideal for Scanning

  • 5/10/25mm travel
  • 20nm min. incremental motion
  • 10nm linear encoder resolution
  • 10’s of Hz scanning frequency
  • 4N push/pull force
V-308 Fast Nano Focus Voice Coil Scanner, 7mm
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V-308 Fast Nano Focus

Voice Coil Scanner, 7mm

  • 7mm motion
  • Voice coil linear motor
  • Adjustable Z-counterbalance
  • Millisecond settling time
  • 1nm sensor resolution

Closed-Loop Servo Motor Controllers

for 3-Phase Linear Motors and Voice Coil Actuators

PI provides a number of standard motion and position controllers for linear motor actuators and voice coil actuators. In addition to fully contained controllers, OEM controllers and modules are available. Labview, Matlab, etc., software packages, drivers and support are available, too.

Linear Stages

Several types of motorized precision linear translation stages | PI USA
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XY Stages

Several types of planar XY stages: Direct-driven stages, ball-screw stages and air bearing planar XY stages
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Precision Linear Actuators

Direct Drive, Voice Coil, Ball Screw, Linear Motor and Piezo Motor Actuators for Precision Motion and Positioning

A precision linear actuator is a positioning device that provides motion in 1 degree of freedom. PI designs and manufactures a variety of precision linear actuators (pushers) including economical stepper-motor driven actuators, high-speed linear motor types for automation and nanometer precise piezo-motor actuators.
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Piezo Transducers & Actuators

Piezoelectric translators (transducers) are precision ceramic actuators which convert electrical energy directly into linear motion with high speed, force and virtually unlimited resolution. These actuators are used in every modern high tech field from semiconductor test & inspection to super-resolution microscopy, bio-nanotechnology and astronomy/aerospace technology.
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Different Hybrid Drive Concepts to Solve Tough Positioning and Alignment Problems in the Nanometer Range


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Sinusoidal Scanning Motion Performance: Air Bearings vs. Mechanical Bearings


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Ultra-High Precision Positioning Actuators to Align Mirror Segments in the ELT Telescope

Hybrid Concept Using Piezo / Voice Coil and Screw Drives for the ELT Telescope


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Piezo Flexure Actuators, Nanopositioners, and Other Piezo Mechanisms for Precision Motion Control Applications


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