Precision linear actuators, non-magnetic and vacuum capable

Precision linear actuators with exceptional size to force ratio. Non-magnetic and vacuum capable with nanometer resolution. They provide true linear direct drive up to 40N.

Piezo LEGS direct drive piezo actuators

Our “off the shelf” standard 6.5 – 40N range of precision linear actuators

  • Linear direct drive
  • Non-magnetic
  • Vacuum capable
  • Extremely high resolution
  • Self-locking and no backlash

LEGS® precision linear actuators

Patented linear actuators developed and manufactured in house. We build the actuators using our proprietary LEGS® piezo technology.

Our standard range include 6.5 – 40N direct drive linear actuators. Our custom range include actuators up to 450N and rotary piezo motors.

True and tested, Acuvi is proud of what our customers can achieve using our linear actuators. They are found in Med tech, Life Science, Optics, Semiconductor and Advanced Industrial applications.

Our How to Achieve High Precision Motion Page gives insights on various motion and motor techniques.

Advantages of the Legs Linear® actuator and motor technology

  • Vacuum capable
  • Non-magnetic and do not generate magnetic fields
  • True linear drive without the need for gears, ball screws or other components.
  • Extremely high resolution down to sub-nanometer
  • Quick response and high speed dynamics
  • Compact design enabling miniaturization
  • Self-locking without adding power and zero backlash
  • Integrated encoders available
  • Precision guiding available

6.5N, guiding and integrated encoder

For normal environments

LEGS® LL06 linear actuator

10N, guiding and integrated encoder

Vacuum capable versions available. Precision guiding

LEGS® LL10PG linear precision guided actuator

20N for external encoder

Vacuum and non-magnetic versions available.

LEGS® LT20 linear actuator

“Not finding exactly what you are looking for? Let our engineers help you with your project”

20N, guiding and integrated encoder

Vacuum capable versions available. Precision guiding

LEGS® LT20PG linear precision guided actuator

40N for external encoder

Vacuum and non-magnetic versions available.

Piezo LEGS® LT40 linear actuator

40N, guiding and integrated encoder

Vacuum capable versions available.

LEGS® LT40PG linear precision guided actuator

The LEGS® Piezo Technology is a perfect match for linear OEM motion solutions

Exceptional size to force ratio

Few components result in exceptionally compact motors. The exceptional size to force ratio makes the LEGS® Piezo Actuator Technology a great fit for OEM engineering challenges.

True linear motion simplifies engineering

No need for gears, spindles or mechanical transmissions. Engineers achieve the linear direct drive with few mechanical parts.

Vacuum capable and non-magnetic

The option of motor housings in non-magnetic alloys and ceramic drive units results in motors with a magnetic flux density lower than 1 nT at 10mm distance. They do not generate magnetic fields or are affected by magnetic fields. No problem in an MRI machine or in cellular applications.

Extreme precision – all the way down to sub nanometer resolution

The motors can easily position down to sub-nanometer levels if needed. The electronics is the limiting factor, not the motor.

Speed and step length

The speed of the motor is depending on step length and drive frequency. The indicated maximum speed on the product pages is in normal environment and for continues operations.

Under intermittent conditions and with specific controllers, you can greatly increase the speed. Contact us for further information. The environment and payload heavily affect the step length.

Self-locking without power, no backlash and zero drift

They achieve linear motion without gears or ball screws. The motor reacts instantly both in starting and stopping. The friction locks the drive rod in place without any power draw.

Precision guiding and integrated encoders

Most models are available with integrated encoder and precision guiding.

Linear Actuators Starter Kits

Starter kits are available for most of our standard Piezo actuator range. In addition to the actuator configuration of you choice the kit also, without additional cost, contains:

  • Controller
  • Connector board
  • Power supply 48 V (with 4 regional adapters)
  • USB to- RS485 converter
Piezo Motor starter kit are available for all standard and rotary motors.

Contact our engineers for more information and pricing

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