ETEL MWD070‑0128‑21A Linear Motor

The ETEL MWD070‑0128‑21A is a compact, high‑acceleration ironless linear motor designed for applications where space is limited but performance cannot be compromised. With a coil length of 128 mm and a width of 70 mm, this motor offers an excellent power‑to‑size ratio, making it ideal for fast, precise movements in semiconductor handling, electronic assembly, and medical diagnostics.

Notable Properties

• Ironless Architecture: Zero cogging ensures ultra‑smooth motion, even at sub‑micron increments.

• High Acceleration: Low moving mass allows accelerations exceeding 100 m/s².

• Moderate Force Output: Provides up to 80 N continuous force (peak 160 N), sufficient for light to medium loads.

• Energy Efficiency: Optimized coil design minimizes copper losses, reducing heat generation.

• Wide Compatibility: Works seamlessly with ETEL's DSB2 and AccurET servo drives.

Technical Specifications

• Continuous Force: 80 N (with air cooling) / 55 N (natural convection)

• Peak Force: 160 N

• Coil Length: 128 mm

• Coil Width: 70 mm

• Maximum Speed: 8 m/s

• Maximum Acceleration: 120 m/s²

• Magnet Track: 300 mm standard (custom lengths available)

• Feedback: Optional incremental or absolute encoder

Ideal Applications

This motor is frequently used in high‑speed pick‑and‑place machines, USB connector testers, and small‑form‑factor laser markers. Its rapid response and smooth velocity profile also make it suitable for scanning microscopy and optical alignment.

Installation and Cooling

The MWD070‑0128‑21A can be mounted using standard M4 screws on the coil assembly. For continuous high‑force operation, forced‑air cooling is recommended. ETEL provides thermal models to assist with system cooling design. The motor's sealed construction protects against dust and moisture, ensuring reliability in cleanroom and industrial environments.

Conclusion

The ETEL MWD070‑0128‑21A compact ironless linear motor delivers outstanding speed and precision in a small package. Its combination of zero cogging, high acceleration, and energy efficiency makes it an ideal choice for next‑generation automation equipment.