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WF-SM Anti-shaft-shift Permanent Magnetic Coupler
Permanent magnetic coupler (also known as permanent magnetic coupling, magnetic coupler or permanent magnetic shaft coupling) is a device that realizes non-contact torque transmission relying on the magnetic field of permanent magnets. Widely adopted in industrial transmission systems, it features outstanding merits including high efficiency, energy conservation and maintenance-free operation. The anti-axial-shift permanent magnetic coupler developed by Wolfer Permanent Magnet boasts excellent performance in eliminating axial displacement and can efficiently resolve axial shifting troubles of loads. For application scenarios requiring couplers equipped with braking devices, this product delivers dependable solutions and can completely replace torque-limiting hydraulic couplers with brakes, laying a solid foundation for the stable operation and high-efficiency production of enterprises' equipment.
Product Structure:
It consists of a permanent magnet rotor disc connected to the load shaft and a conductor rotor disc connected to the motor shaft, with an air gap between the two and no rigid mechanical connection.
Output power:
2.2—2000kW
rotational speed:
Maximum speed is 7000r/min
Renovation construction period:
1 day
Specification and Model:
Refer to the selection manual

Product Introduction:

A permanent magnetic coupler (also known as magnetic coupler, magnetic drive coupler, permanent magnetic coupling, etc.) is a device that uses the magnetic field of permanent magnets to achieve non-contact torque transmission. It is widely used in industrial drive systems, offering significant advantages such as high efficiency, energy savings, and maintenance-free operation. The voofu Anti-Axial-Drift Permanent Magnetic Coupler features excellent axial drift elimination capability, effectively addressing axial drift issues in loads. In applications involving couplers with braking devices, this product provides a reliable solution and can perfectly replace torque-limiting fluid couplings with brakes, ensuring stable equipment operation and efficient production for enterprises.


Technical Principle:

When the conductor rotor on the motor side and the permanent magnet rotor on the load side move relative to each other, the conductor cuts through the magnetic field lines, generating eddy currents, which in turn produce an induced magnetic field. This induced field interacts with the permanent magnetic field to achieve non-contact torque transmission. By adjusting the air gap width or coupling area, dynamic control of torque and speed can be achieved to meet various operating conditions.


Advantages & Features:

1. Buffered soft start, extending equipment service life.

2. Torque limiting, automatic stall protection.

3. Eliminates axial drift, resolves vibration in brakes and other devices.

4. Overload protection, improving motor system reliability.

5. Simple construction, low maintenance requirements.

6. Design life of 30 years.

7. Non-contact torque transmission with excellent vibration damping.

8. Suitable for harsh environments; generates no pollutants.

9. Generates no harmonics.


Quality Certifications:

· ISO 9001/14001/45001 triple system certification

· Patents and utility model patents related to permanent magnetic couplers

· Product technology included in the National Recommended Catalog of Industrial Energy-Saving Technologies

· voofu leads / participates in the formulation of industry standards for permanent magnetic couplers


Corporate Honors:

· National High-Tech Enterprise (four consecutive certifications)

· National "Little Giant" Specialized and Sophisticated Enterprise

· National Intellectual Property Advantage Enterprise


Application Scope:

Widely used in industrial drives, energy, environmental protection, and other fields:


· Industrial machinery: Conveyors, crushers, ball mills, fans, water pumps, centrifuges, mixers, etc.

· Energy industry: Wind power generation (turbine-generator coupling), electric power (auxiliary equipment in power plants), oil/petrochemical (pump equipment).

· Infrastructure: Mining, metallurgy, cement, papermaking, textiles, marine propulsion systems, air conditioning and refrigeration, etc.

· Special scenarios:Equipment requiring frequent start-stop or forward/reverse operation, or drive systems needing vibration isolation or overload protection.


Typical Application Examples:

Suitable for hard-to-align equipment and equipment with low stalling probability, as well as various mechanical equipment such as fans, water pumps, air preheaters, belt conveyors, material conveyors, bucket elevators, ball mills, hoists, crushers, mixers, straightening machines, etc.

Cement plantthermal power plantsteel plant
Bucket elevator Air Preheater Air Preheater
Zipper machine ash slurry pump Cooling fan
Belt conveyor ash flushing pump Circulating Water Pump
Bucket-wheel stacker-reclaimer Bucket-wheel stacker-reclaimer Fans (cooling/heating/dedusting/combustion-supporting/main exhaust)
Fan Condensate pump conveyor
water pump Various types of fans Dust Removal Fan (Raw Material / Furnace Front / Sinter Machine Annular Cooler)
Roller press belt conveyor Annular Cooling Blower
crusher Coal Crusher mixer
Coal Mill —— centrifuge

Ordering Instructions:

Please specify the mounting method, operating environment, and the requirements of the associated mechanical equipment when placing an order.


Other Special Requirements:

Please enter into a technical agreement. Due to technological advancements and revisions of relevant domestic and international standards, dimensions and technical parameters may change. Please confirm with our technical department or request formal outline drawings and related parameters when placing an order.

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