ETEL MWA050‑0128‑20B Linear Motor Magnet

The ETEL MWA050‑0128‑20B is a premium magnet assembly designed for use in linear motor systems. This component forms the magnetic track for ETEL's ironless or iron‑core linear motors, providing a high‑energy magnetic field that ensures efficient force generation. With a length of 128 mm and a width of 20 mm, it offers a compact footprint while maintaining excellent force density, making it suitable for both short‑stroke and long‑stroke applications.

Key Characteristics

• High Energy Product: Utilizes neodymium‑iron‑boron (NdFeB) magnets with a high maximum energy product (BHmax) for maximum thrust.

• Low Cogging Force: Optimized magnet arrangement minimizes cogging, enabling ultra‑smooth motion at low speeds.

• Corrosion‑Resistant Coating: Nickel‑copper‑nickel plating protects against humidity and industrial contaminants.

• Precision Ground Surfaces: Ensures consistent air gap and motor performance.

• Modular Design: Multiple magnet assemblies can be aligned end‑to‑end to create longer travel lengths.

Technical Specifications

• Length: 128 mm

• Width: 20 mm

• Height: 10 mm

• Material: NdFeB N48H

• Coating: Ni‑Cu‑Ni

• Max Operating Temperature: 80 °C

• Magnetic Pole Pitch: 20 mm (customizable)

• Weight: 0.6 kg

Applications

The MWA050‑0128‑20B is commonly used in precision positioning stages, semiconductor inspection equipment, and high‑speed pick‑and‑place machines. Its low cogging force is particularly beneficial for applications requiring constant velocity, such as laser scanning and dispensing.

Installation and Maintenance

This magnet assembly is designed for easy mounting using pre‑drilled holes or epoxy bonding. ETEL provides detailed guidelines for alignment to ensure optimal air gap and magnetic coupling. The robust coating ensures long service life even in cleanroom environments.

Conclusion

The ETEL MWA050‑0128‑20B linear motor magnet offers a perfect blend of high force output, smooth motion, and durable construction. It is an essential component for engineers building high‑performance linear motor stages with demanding precision requirements.