Magnetic Couplings

Magnetic Torque Coupling,Magnetic Coupling Supplier,Asynchronous Magnetic Coupling,Synchronous Magnetic Coupling,Shaft Magnetic Rotor Coupling,Magnetic Couplings Oo Gauge,Magnetic Coupling Principle,Magnetic Coupling Applications

What is magnetic torque coupling ?

The magnetic torque coupling transmit the torque without contact through magnetic forces between the internal and external rotor. They ensure hermetic separation between driving and driven side in pumps and agitators sealing hazardous liquids and gases reliably.

The magnetic torque coupling consists of an external and an internal rotor. The external rotor has got high-quality, permanent magnets of changing polarity on the inner side while the internal rotor has got them on the outside.The external rotor is usually fixed on the drive side and the magnets are glued in the keyways. The magnets of the internal rotor on the driven side are fully encapsulated.

How magnetic torque coupling work?

The magnetic torque coupling consists of three parts. The external rotor consists of a series of rare earth magnets that are ground, potted and attached to the inside diameter of a steel hub. The Internal rotor consists of a series of rare earth magnets that are ground, potted and attached to the outside diameter of a steel rotor. The sealing is achieved statically.

Then there is a synchronous operation under a constant torsion angle. If the maximum coupling torque and the maximum torsion angle are exceeded, the power transmission is interrupted.Since the torque transmission of the magnetic torque coupling is interrupted, the motor will be effectively protected.The motor will not burn out due to absolute torque transmission.

Application of magnetic torque coupling

Typical applications: Gear pumps, centrifugal pumps, screw spindle pumps, agitators, PU foaming lines.

The magnetic torque coupling parameter

Customizable Items:

• 1. Third-party authoritative testing available.
Globally recognized torque and material test reports issued by authoritative organizations are provided.
• 2. Flexible options for surface metal materials.
The metal material can be flexibly customized. Stainless steel 304 is used as the standard material, with stainless steel 316 available as an optional choice.
• 3. No MOQ and Global Door-to-Door Delivery.
We offer global door-to-door delivery service with no minimum order quantity (MOQ).
• 4. Shaft Diameter and Shape (Free Service).
You can choose the shaft's size and shape to meet your specific needs.
• 5. Containment shroud (optional).
• 6. Custom rubber sealing rings available.
• 7. Various magnet grades and material options.
- Maximum temperature resistance: 300°C. - Torque adjustable based on magnet grade and type (optional neodymium magnets. and samarium cobalt magnets).

Type A

setscrew

Type B

with feather keyway
and setscrew

Type C

clamping hub
single slot with
feather keyway

Magnetic disc vs co-axial coupling comparison

Magnetic disc vs co-Axial coupling comparison
Coupling style	Magnetic disc couplings ( XD )	Co-axial magnetic couplings ( XC )
Permanent-magnetic	√	√
Contactless	√	√
Maintenance-free	√	√
Torsionally flexible	√	√
Low vibrations	√	√
Material	Standard: SS304. Options: Aluminum alloy 6061,Stainless steel 316L,PVC, available)	Standard: SS304. Options: SS316/UNS S31603.
Containment shroud	None	Optional
Axial forces	High axial force which must be restrained	Coupling finds its own center with ~0 axial force
Shaft fixing method	Small size type A,  big size type B & C available	Type B
Slip torque adjustment	Air gap can be adjusted  to increase or decrease slip torque	Coupling hubs can be seperated axially  to decrease slip torque (axial force will result)
Angular misalignment capacity	3° Max	Ensure coupling hubs  (or barrier if used) do not contact
Parallel misalignment capacity	6.35mm (0.25in) Max	Ensure coupling hubs  (or barrier if used) do not contact
Containment barrier	Simple flat barrier	Top-hat shaped barrier
Max. pressure resistance [bar]	Up to 80 bars depending on size	Up to 90 bars depending on size
Max. temperature resistance [°C]	150/300 depending on magnet material	150/300 depending on magnet material

Please Note:

1. The magnetic torque coupling containment shroud is optional, we can produce it according to your drawings, the larger the order quantity, the better the discount.
2. We are the original manufacturer for magnetic torque coupling, we provide very flexible customizability; any grade of magnet, any material, one-year warranty, lifetime technical support.

FAQ for magnetic torque coupling