Line 04 · Motion Platform
3 DOF motion platform
Three-axis motion where three axes are enough: a compact, modular platform that the published comparison prices at more than 50% lower hardware cost than a six-axis system.
The 3 DOF motion platform starts from an honest engineering premise: many tasks — drone testing, vehicle-mounted equipment verification, compact simulators — only need motion in three axes, and buying six is waste. With fewer driving joints and a compact structure, the platform reduces hardware costs by more than 50% compared with a six-degree-of-freedom system and lowers maintenance difficulty. Its modular mechanical design supports quick replacement of sensors, actuators and other components, adapting to different load scenarios.
Precision is not the sacrifice. The platform integrates servo motors and a closed-loop feedback system, achieving +/-0.1 mm translation accuracy and +/-0.05 degree rotation accuracy, with a response delay of less than 10 ms — the same accuracy class as the larger platforms in this line. The degree-of-freedom mode is X/Y/Z axis translation or rotation about the axes (roll/pitch/yaw combinations), maximum load is 200–300 kg for the electric industrial grade (electromagnetic precision-testing type: 100 kg or less), motion range is +/-500 mm translation per single axis and +/-30 degrees rotation, and drive modes span servo motor (high precision), hydraulic (high load) and electromagnetic (high-frequency micro-vibration).
The decision between this platform and a six-axis base is exactly what our 3 DOF vs 6 DOF comparison works through — read it before you either overspend on axes you will not use or underspec a cue your application needs.
Core technology on record
- Cost-optimised design — fewer driving joints, compact structure, hardware cost 50%+ below six-DOF, lower maintenance difficulty.
- Modular mechanics — quick replacement of sensors and actuators across load scenarios.
- High-precision response — servo + closed-loop feedback; +/-0.1 mm, +/-0.05 degrees, <10 ms delay.
Specifications
| Item | Specification on record |
|---|---|
| Degree of freedom mode | X/Y/Z axis translation or rotation about the axis (roll/pitch/yaw combination) |
| Maximum load | Electric type 200–300 kg (industrial grade); electromagnetic type <= 100 kg (precision testing) |
| Motion range | +/-500 mm translation (single axis); +/-30 degrees rotation |
| Control accuracy | Translation +/-0.1 mm; rotation +/-0.05 degrees; dynamic response delay < 10 ms |
| Drive modes | Servo motor (high precision); hydraulic (high load); electromagnetic (high-frequency micro-vibration) |
What to confirm for your project
- Fix your axis set first: translation-only, rotation-only and mixed configurations are different builds of this platform.
- If your application roadmap might grow to six-axis cues, price the YT-6DOF now — retrofitting axes later costs more than the saving.
- Ask about minimum order requirements and lead time for your proposed configuration.
Buyer questions
Why choose 3 DOF over 6 DOF?
Cost and maintenance: the published comparison gives hardware costs more than 50% lower with fewer driving joints, while keeping +/-0.1 mm accuracy — right for tasks whose cues live in three axes.
What loads can it carry?
200–300 kg for the electric industrial grade; the electromagnetic precision-testing type is rated at 100 kg or less.
Which drive should we pick?
Servo for precision, hydraulic for high load, electromagnetic for high-frequency micro-vibration — the three published drive modes map to three different jobs.
Related systems
6 DOF Motion Simulator (YT-6DOF)
The full six-axis flagship at 800 kg and 2,000 kg.
View the system →3-Axis Motion Platform
Linear positioning (not tilt motion) at +/-0.005 mm repeatability.
View the system →3 DOF vs 6 DOF Motion Platform
The head-to-head comparison of the two architectures.
View the system →None
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