Piezoelectric Ultrasonic Motors - Wavelling® Series
Tekceleo’s Wavelling® motors are travelling wave piezoelectric motors – a compact, non-magnetic alternative to conventional rotary motors wherever space, weight or magnetic compatibility rule out standard solutions. As ultrasonic motors, they combine high torque density, sub-millisecond response, micrometric precision and near-silent operation in a single compact rotary motor, with no gearbox and no backlash.
Used in surgical robotics, MRI-compatible platforms, aerospace and precision automation, our piezoelectric motors deliver direct-drive motion control where standard motors simply don’t fit.
OUR ULTRASONIC MOTOR SERIES
Same core technology, sized for your Application
WAVELLING®
WLG-75-R Motor
Our highest-torque piezoelectric motor: 1.5 N.m and 15 W in a single 75 mm stator compact rotary motor. Built for where conventional gear motors run out of force.
- Torque up to 1.5 N·m - direct drive, no gearbox
- Rated power 15 W, 75 mm diameter
- Full holding torque at 0 W
- Non-magnetic: <3 nT, MRI-compatible to 5T
- Built-in encoder for closed-loop control
The motor of choice when torque, not speed, is the constraint.
WAVELLING®
WLG-30-R Motor
Our most versatile piezoelectric motor: 30 mm, up to 250 RPM, with the best balance of torque, speed and footprint. The easiest WLG model to integrate into a new motion system from scratch.
- Torque up to 120 mN·m, max speed 250 RPM
- Rated power 1.3 W — max 1,5 W
- Direct drive, zero backlash
- Non-magnetic: <3 nT, MRI-compatible to 5T
- Built-in encoder, closed-loop control
The general-purpose choice — if you're not sure which model fits, start here.
WAVELLING®
WLG-20-R Motor
Our most compact piezoelectric motor: just 20 mm and 14 g, for ultrasonic motion control where conventional motors don’t fit. Up to 380 RPM with micrometric precision.
- Diameter 20 mm, weight only 14 g
- Speed up to 380 RPM, rated power 0.55 W
- Micrometric accuracy down to 0.0156°
- Non-magnetic: <3 nT, MRI-compatible to 5T
- Built-in encoder in a sub-15 g footprint
Precise motion where there's no room left for a motor.
Know more about our Non-Magnetic Piezo Motors
Tekceleo’s Piezo Motors use Wavelling ultrasonic motors technology for precise and smooth motion, making them ideal for robotics, medical devices, and automation equipment.
With a high torque-to-speed ratio and optimal precision, our Piezo Motors offer efficient and accurate movement even in tight spaces. We provide a variety of rotary motors, as well as customized solutions and technical support to seamlessly integrate our motors into your system.
Contact us to learn more about how our Piezo Motors can meet your specific needs.
Discover the Advantages of Travelling Wave USM
Unlike multi-stage piezo actuator systems that require complex resonance tracking and dedicated piezo expertise to integrate, Wavelling® motors are designed as ready-to-use rotary motors: a single compact unit, a standard power input, and a built-in encoder — no specialized piezo know-how required on your side.
That’s the difference between a piezo motor you have to engineer around, and one you can simply drop into your platform.
Contact us if you want to know more!
Technical Characteristics
Motor
Performances
Our line of piezoelectric motors ranges from 20mm to 75mm diameters.
WLG-75-R
Rated Power : 15 W / Max Torque : 1,5 N.m / Max Speed : 250 RPM
WLG-30-R
Rated Power : 1,5W / Max Torque : 120 mN.m / Max Speed : 250 RPM
WLG-20-R
Rated Power : 0,55 W / Max Torque : 30 mN.m / Max Speed : 380 RPM
Electronic Controllers
Our Electronic Controllers are using a closed loop control on speed/position.
Power Source Voltage
DC24 [V] ±0.5 [V]
Start-Stop Control
On Off digital control TTL level signal / Digital Protocol
Start/Stopping Response
< 500 µs
Control Setting
DC 0[V] 〜 3.3[V] / PWM / CAN / UART / RS232
General Characteristics
Providing cutting-edge solution, especially for non-magnetic environment.
Non-Magnetic Motors
No magnetic signature (< 3nT) / Compatible for MRI environment up to 5T
Very low weight
Ranging from 14 g to 280 g
Long lifespan
Lifespan between 30 millions to 60 millions rotations, depending on application
High Accuracy
Ranging from 0,0156° to 0,0625°, can be customized
Evaluation
Kits
Easily get started wit our Evaluation kits, including Open Softwares.
Choose your motor
From WLG-75-R to WLG-20-R / Including well-dimensioned dissipation plates
Controller and power Supply
User guide for easily getting started
Documentation & Support
For easy test and evaluation
Free Demo & IHM Software
To get started
Highlights of our Ultrasonic Motors
Embedded Encoder for Precise Motion Control
Direct Drive at High torque / Low Speed
Customizable Solution
Reliable Performance
Wide range of applications
Very fast Response Time (< 1 ms)
Advanced Technical Support
Lightweight system, compact (miniature), flat or cylindrical shape
Non-Magnetic Motors
Our Wavelling Technology Overview
Travelling Wave Non-Magnetic Piezo Motors with Built-in Encoder
At Tekceleo, our Wavelling technology offers exceptional precision and control with our Travelling Wave Piezo Motors. This unique technology utilizes ultrasonic waves to create mechanical vibrations that are then converted into rotary motion. The result is smooth and precise motion control that is ideal for applications such as robotics, medical devices, and automation equipment.
Our unique WAVELLING® know-how, ranges from 20mm (for miniature motors) to 75mm diameters. The diversity of our line of motors enables them to achieve a wide range of performances and uses, ranging from nominal speeds of below 1 RPM to 600 RPM depending on the type of motors, all without a reducer (no backlash or jerks). The nominal torques can vary from a few mN.m to 2N.m depending on the type of motor.
Our Travelling Wave Piezo Motors also come with built-in encoders, providing accurate feedback on position and velocity. This feature ensures that your equipment operates precisely and reliably, with the added benefit of reduced wiring and installation time. Additionally, our motors have a high torque-to-weight ratio, making them ideal for applications where space is limited or weight is a concern.
WLG-75-R, 75 mm diameter motor
WLG-30-R, 30 mm diameter motor
WLG-20-R, 20 mm diameter motor
All of our drives incorporate speed/position sensors and can be customized depending on the application.
Examples of Applications
Miniature technology for light robotics and surgical robotics: Multi-axis robotic arms (torque control), robotic arms with force feedback (haptics), miniature robotic arms, probe positioning (MRI compatible)
Aerospace: Cubesat – Nanosatellite for space research, vacuum-resistant actuators
Optronics and Optomechanics: Alignment of optical systems, camera support (support/stabilization), laser beam control
Defense: Non-magnetic actuators for mine clearance and extreme conditions
Piezoelectric valve and mini-pump: Fast multi-channel low consumption piezoelectric valve, mini-dosing pump (pipetting, precise distribution, drop on demand, mini fluidics, etc.)
Positioning: Motorization for an XY table, hexapod, actuators for active vibration control
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