ETEL MWA050-0128-20B Linear Motor Magnet – High-Performance Magnet Track
The ETEL MWA050-0128-20B is a high-performance linear motor magnet, also known as a magnet track, designed for use in ETEL's direct drive linear motor systems. This component serves as the stationary magnetic field source, interacting with the moving coil assembly to generate linear thrust without mechanical transmission. Engineered with advanced permanent magnet materials and precision manufacturing, this magnet track delivers high force density, excellent thermal stability, and long-term reliability.
This magnet track is specifically designed for applications requiring high force and precision in a compact footprint. Its modular design allows multiple segments to be joined end-to-end, enabling virtually any stroke length. The MWA050-0128-20B is optimized for smooth, low-cogging operation, making it suitable for high-precision scanning, inspection, and positioning tasks.
Key Features
High Force Density: Maximizes thrust output within a compact envelope, enabling smaller machine designs.
Low Cogging Force: Precision-magnetized pattern reduces reluctance forces for ultra-smooth velocity control.
Thermal Stability: Designed to maintain magnetic properties across a wide operating temperature range.
Modular Design: Track segments can be combined to create custom stroke lengths.
Durable Construction: Protective coating resists corrosion and mechanical damage.
Easy Installation: Pre-drilled mounting holes and precision-ground reference surfaces simplify alignment.
Technical Specifications
The MWA050-0128-20B magnet track has a length of 128 mm and is optimized for use with ETEL's compatible coil assemblies. It generates a continuous force of up to 50 N and a peak force exceeding 150 N, depending on the coil configuration and air gap. The track is constructed from high-grade magnetic materials with a protective epoxy coating for corrosion resistance. The mounting interface includes precision-ground surfaces and threaded holes for secure attachment to machine structures.
The track is compatible with incremental and absolute encoders for precise position feedback, enabling nanometer-level positioning accuracy. The unit is designed for operation in cleanroom environments, with low outgassing materials suitable for semiconductor and biomedical applications.
Applications
Semiconductor Manufacturing: Wafer handling, reticle positioning, and inspection stages.
Flat Panel Display Production: Glass substrate scanning and alignment systems.
Laser Processing: Precision cutting, engraving, and marking tables.
Medical Device Manufacturing: Precision positioning for diagnostic equipment.
Installation and Alignment
Proper installation of the magnet track is critical for achieving optimal motor performance. The mounting surface must be flat and rigid to maintain a consistent air gap between the magnet track and the coil assembly. ETEL provides detailed installation guidelines, including recommended torque values for mounting screws and alignment procedures using precision measuring tools.
After installation, the air gap should be verified using feeler gauges or laser displacement sensors. The typical air gap ranges from 0.5 to 1.0 mm, ensuring maximum force efficiency and preventing mechanical contact between moving and stationary parts.
Benefits
Superior Motion Quality: Low cogging and force ripple enable ultra-smooth velocity control.
High Throughput: High acceleration capabilities reduce cycle times.
Maintenance-Free Operation: No mechanical wear components, leading to high uptime.
Design Flexibility: Modular segments allow customization of stroke length.
Conclusion
The ETEL MWA050-0128-20B linear motor magnet is a precision-engineered component that forms the backbone of high-performance direct drive linear motion systems. Its combination of high force density, low cogging, and modular flexibility makes it an ideal choice for applications demanding the highest levels of precision, speed, and reliability.
