Magnet-Free Track Linear Motors

magnet-free-track linear motors MMF3 banner

Patented magnetic field modulation technology

High force density, low EMI

High precision, high speed, low cogging

Stand-alone or Module Design

How does the MMF3 magnet-free track linear motor work?

Most linear motors currently available on the market have magnets in the linear track, with coils in the moving forcer. Motion Control’s new generation MMF3 series Magnet-free track linear motor is an industry first: Our magnet-free-track linear motor is based on the principles of magnetic field theory, with the platen not needing permanent magnets anymore. This can save on large amounts of rare-earth materials, most importantly saving on costs, particularly on long platen lengths.

With safety being a factor on assembly with large magnetic fields on current linear motors, the magnet-free track linear motors have low vertical magnetic attraction, ease of forcer and platen protection and most importantly saving a vast amount of cost on the application of long linear movements with increased platen lengths.

MMF3’s working principle, keeps the most basic electromagnetic theory still unchanged, but it adopts the latest in ‘magnetic field modulation’ principles, with a self-modulated ferrite alloy stator, we incorporate the magnets, moving from the stator to the mover, so that the coil and magnet are totally integrated in the mover in a compact format. The unique shaped design on the stator provides a magnetic circuit that essentially interacts with two magnetic fields to generate thrust, with excellent smooth performance and movement.

Motor Features

What’s MMF3 linear Motor advantages, features and benefits?

Optimising the interaction between the forcer and platen yields exceptional results: continuous force capabilities of up to 495N (1527N at peak) and a maximum speed of 12.8 m/s (18.2m/s at lower force levels). This translates to motor efficiency levels surpassing 90%. The manufacturing and installation processes of MMF3 linear motors confer customers with extraordinary force density, streamlined assembly, heightened operational speeds, and precision movement.

The patented MMF3 magnet-free track linear motors offer several distinct advantages over their conventional counterparts:

Enhanced Operator Safety: The absence of a magnetic field in the stator ensures safer assembly for operators, eliminating potential risks associated with magnetic fields.

Extended Product Lifespan: Reduced cogging force and friction contribute to prolonged product lifespan, offering customers a reliable and durable solution.

Reduced EMI: Electromagnetic interference (EMI) is significantly minimised in the platen, leading to improved operational reliability in sensitive environments.

Superior Forcer Protection: The magnet-free design provides comprehensive protection for the forcer, reducing the accumulation of particles that magnetic fields can attract.

Economical Advantages: Beyond the innovative technology, the MMF3 linear motors yield substantial cost savings by minimising reliance on rare-earth materials, presenting a more sustainable solution for linear motion systems.

Typical Applications

  • Semiconductor field:
    • Wire bonding machine
    • Pick & place
    • Inspection cameras
  • Laser field:
    • Cutting
    • Engraving
    • Marking
  • Electronic production equipment
    • XY axis
    • Drilling
    • Scribing
    • Loading and unloading
  • Medical equipment
  • Seventh axis of robot
  • General automation

MMD Linear Stage Module

In addition to the groundbreaking MMF3 series linear motors, MCP is proud to present the MMD linear motor modules. Offering four base width options (90mm to 210mm), these modules are characterised by high integration, precision, speed, security, and ease of protection. MMD linear motor modules have found widespread use in the 3C industry, LCD displays, photovoltaic applications, and the medical field.

MMD linear motor modules shine in applications requiring long travel distances and those sensitive to magnetic fields. Their versatility and performance make them an ideal choice for a range of industries, ensuring seamless integration and outstanding results.

MMD linear stage module

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Please contact our technical sales team for pricing, datasheets, technical drawings (2D / 3D), hardware & software manuals or any other technical information for your applications...