Product Description

Please send us the following information.

1. Motor output power(KW)
2. Motor speed(RPM)
3.The torque of the magnetic coupling
4. Working pressure of the housing(isolation sleeve)
5.Working temperature of magnetic coupling
6. Technical drawing of the output part connector (usually motor)
7. Technical drawing of the input part connector (usually pump)

Introduction of magnetic exchange pump couplings magnetic couplings

The magnetic shaft coupling is a new kind of coupling, which connects motor and machine by permanent magnetic force. 

They consist of the external rotor, internal rotor and isolating covers.

They work in the sealed magnetic drive pumps, which transporting volatile, flammable, explosive and toxic solutions with no leakage. 

These magnetic shaft couplings can be used to connect gear pumps, screw pumps, centrifugal pumps, etc. with all types of the electric motor or gear box. 

The magnetic shaft coupling is widely used in various industries and fields, such as chemical, papermaking, foodstuff, pharmacy, and so on. 

Advantages of magnetic exchange pump couplings magnetic couplings

» Elimination of fluid leakage from the pump shaft.

» Vibrations are not transmitted to the pump.

» No maintenance required for magnetic couplings.

» Using magnetic couplings allows the use of standard pumps without expensive mechanical seals.

» No additional cost for purchasing mechanical seal spare parts and maintenance.

 

Technical drawing of magnetic exchange pump couplings magnetic couplings

 

Specification of magnetic exchange pump couplings magnetic couplings

Item Internal Rotor(mm) External Rotor(mm) Isolating Covering(mm)
A B C D E F G Shaft Pin H I J L N M P Q R S T U
GME03-3LM00 Φ35 Φ10 26 18 M6X12 Φ42 Φ60 Φ50 46 6-M4 Φ40 Φ50 4-Φ5.4 Φ38 Φ60 6 6
GME03-5MM00 Φ42 Φ12 27 4 18 13.8 M6X16 Φ49 Φ72 Φ60 46 4-Φ6.7 Φ52 Φ60 4-Φ6.7 Φ44 Φ74 8 8
GME03-16LM00 Φ56 Φ12 45 4 25 13.8 M6X16 Φ63 Φ89 Φ80 75 6-M5 Φ70 Φ75 4-Φ6.7 Φ58 Φ89 8 8
GME03-16LM01 Φ56 Φ12 45 4 25 13.8 M6X16 Φ63 Φ89 Φ80 75 4-M5 Φ70 Φ75 4-Φ6.7 Φ58 Φ89 6 10
GME03-16MM00 Φ56 Φ12 45 4 25 13.8 M6X16 Φ63 Φ89 Φ80 75 6-M5 Φ70 Φ75 4-Φ6.7 Φ58 Φ89 8 8
GME03-22LM00 Φ88 Φ20 29 6 25 22.8 M8X20 Φ97 Φ122 Φ110 70 8-M6 Φ98 Φ108 6-Φ6.7 Φ91 Φ122 8 8
GME03-30LM00 Φ88 Φ20 48 6 30 22.8 M8X20 Φ97 Φ122 Φ110 81 8-M6 Φ98 Φ108 6-Φ6.7 Φ91 Φ122 8 8
GME03-40LM00 Φ101 Φ25 49 8 28 28.3 M10X20 Φ109 Φ140 Φ124 83 8-M8 Φ110 Φ126 8-Φ6.7 Φ103 Φ140 12 6
GME03-50LM00 Φ107 Φ20 70 6 30 22.8 M6X16 Φ113.4 Φ145 Φ135 80 4-M6 Φ126 Φ133 12-Φ8.7 Φ109 Φ153 12 15
GME03-65LM00 Φ101 Φ25 77 8 45 28.3 M10X20 Φ109 Φ140 Φ124 111 8-M8 Φ110 Φ126 8-Φ6.7 Φ103 Φ140 12 6
GME03-80LM00 Φ106 Φ32 65 10 21 36.5 M6X25 Φ115 Φ145 Φ135 82 4-M6 Φ127 Φ135 6-Φ8.7 Φ110 Φ153 13 18
GME03-80LM00 Φ141 Φ92 Φ40 65 12 45 43.3 M12X25 Φ152 Φ180 Φ168 100 8-M8 Φ154 Φ164 8-Φ6.7 Φ145 Φ180 12 8
GME03-100LM00 Φ131 Φ82 Φ32 80 10 24.5 35.3 M8X35 Φ139 Φ170 Φ160 100 4-M6 Φ152 Φ158 8-Φ8.7 Φ133 Φ178 14 21
GME03-110LH00 Φ141 Φ92 Φ40 85 10 50 43.3 M12X25 Φ152 Φ184 Φ168 115 12-M8 Φ156 Φ164 12-Φ6.7 Φ145 Φ180 12 3
GME03-110LM00 Φ141 Φ92 Φ35 80 10 55 38.3 M12X25 Φ152 Φ180 Φ168 115 12-M8 Φ154 Φ164 12-Φ6.7 Φ145 Φ180 12 3
GME03-140LM00 Φ141 Φ92 Φ40 110 12 80 43.3 M12X25 Φ152 Φ190 Φ170 145 12-M10 Φ154 Φ164 12-Φ6.7 Φ145 Φ180 12 3
GME03-180LM00 Φ141 Φ92 Φ40 140 12 95 43.3 M12X25 Φ152 Φ190 Φ170 175 12-M10 Φ154 Φ164 12-Φ6.7 Φ145 Φ180 12 3
GME03-220LM00 Φ141 Φ92 Φ48 160 14 110 51.8 M12X25 Φ152 Φ190 Φ170 195 12-M10 Φ154 Φ164 12-Φ6.7 Φ145 Φ180 12 3
GME03-300LM00 Φ162 Φ65 100 18 60 69.4   Φ170 Φ198 Φ188 123 12-M6 Φ180 Φ192 12-Φ11 Φ163.5 Φ218 16 10
GME03-400LH00 Φ195 Φ70 127 20 107 79.9 M12X25 Φ203 Φ234 Φ222 152 6-M6 Φ212 Φ164 12-Φ11 Φ198 Φ278 16 22

Application of magnetic exchange pump couplings magnetic couplings

The ability to hermetically separate 2 areas whilst continuing to transmit mechanical power from one to the other makes these couplings ideal for applications where prevention of cross-contamination is essential. For instance: hydraulic sectors, dosing systems, compressors, sterilizers, industrial ovens, biotechnology, subsea equipment, pharmaceutical industry, chemical industry, food industry, generators, and mixers.

Operation principles of magnetic exchange pump couplings magnetic couplings

The magnetic coupling works by using the power generated by permanent magnets. No external power supply is needed. These are permanent magnets, not electromagnets.

magnetic coupling

Can Magnetic Couplings Accommodate Misalignment Between the Driving and Driven Shafts?

Yes, magnetic couplings can accommodate a certain degree of misalignment between the driving and driven shafts. This is one of the significant advantages of using magnetic couplings over traditional mechanical couplings, which often require precise alignment to function properly.

The ability to accommodate misalignment in magnetic couplings is due to their non-contact power transmission principle. In a magnetic coupling, the driving and driven shafts are not physically connected but instead operate through a magnetic field.

When misalignment occurs between the driving and driven shafts, the magnetic fields in the magnetic coupling can adjust to compensate for the misalignment within certain limits. This means that the magnetic coupling can continue to transmit torque and power effectively, even if the shafts are not perfectly aligned.

However, it’s essential to note that while magnetic couplings offer misalignment tolerance, excessive misalignment can still lead to reduced efficiency and increased stress on the coupling components. Therefore, it is recommended to keep misalignment within the specified limits provided by the coupling manufacturer to ensure optimal performance and longevity.

By allowing for some misalignment, magnetic couplings offer greater flexibility during installation and operation. This feature is particularly valuable in applications where shaft alignment may change due to thermal expansion, vibration, or other dynamic factors.

Overall, the misalignment accommodation capability of magnetic couplings contributes to their reliability, reduces the risk of premature wear, and makes them well-suited for various industrial applications, including pumps, mixers, and other rotating equipment.

magnetic coupling

What materials, such as neodymium or samarium cobalt, are commonly used in manufacturing magnetic couplings?

Magnetic couplings utilize magnets made from various materials to transfer torque and power without physical contact. Some of the common materials used in manufacturing magnetic couplings include:

  • Neodymium Iron Boron (NdFeB):

    Neodymium magnets are the most widely used type of permanent magnets in magnetic couplings. They offer excellent magnetic properties, high energy density, and strong magnetic fields, making them highly efficient for power transmission. NdFeB magnets are known for their strong magnetic pull and are suitable for various applications with demanding torque requirements.

  • Samarium Cobalt (SmCo):

    Samarium cobalt magnets are another popular choice for magnetic couplings. They exhibit high magnetic stability, even at high temperatures, and have excellent corrosion resistance. SmCo magnets are often used in applications where extreme operating conditions, such as elevated temperatures or aggressive environments, are present.

  • Alnico:

    Alnico magnets are an older type of permanent magnet, known for their high magnetic strength and thermal stability. While not as powerful as neodymium magnets, alnico magnets are still used in certain magnetic coupling applications, especially in situations where the operating temperature is a critical factor.

  • Ceramic Magnets (Ferrite):

    Ceramic magnets, also known as ferrite magnets, are cost-effective and widely used in various magnetic coupling designs. They have moderate magnetic strength and are suitable for applications with less demanding torque requirements.

The selection of magnet material for a magnetic coupling depends on the specific application requirements, such as the desired torque transmission, operating temperature, and environmental factors. Manufacturers may also incorporate different magnet configurations and arrangements to optimize the coupling’s performance for a particular application.

magnetic coupling

Different Types of Magnetic Couplings Used in Various Applications

Magnetic couplings come in different configurations to suit various applications and specific requirements. Some of the common types of magnetic couplings include:

  • Standard Magnetic Couplings:

    These are the most basic and widely used magnetic couplings. They consist of two rotors with permanent magnets and a containment shell. Standard magnetic couplings are suitable for a wide range of applications, providing non-contact power transmission, misalignment compensation, and isolation between shafts.

  • High Torque Magnetic Couplings:

    High torque magnetic couplings are designed to transmit higher levels of torque between the input and output shafts. They feature stronger and larger magnets to handle increased power transmission requirements. These couplings are commonly used in heavy-duty industrial applications, such as mixers, agitators, and large pumps.

  • Low Torque Magnetic Couplings:

    Conversely, low torque magnetic couplings are suitable for applications with lower torque demands. They have smaller and less powerful magnets, making them ideal for applications where precision and efficiency are essential, such as medical devices and laboratory equipment.

  • Variable Torque Magnetic Couplings:

    Variable torque magnetic couplings provide the ability to adjust the torque transmission level. These couplings can be designed with adjustable magnets or magnetic fields, allowing users to control the torque according to the specific needs of the application. They are used in systems where variable speed and torque are required, such as variable speed pumps and compressors.

  • High-Speed Magnetic Couplings:

    High-speed magnetic couplings are designed to handle rapid rotations without compromising on efficiency and reliability. They feature special designs and materials to reduce eddy currents and losses associated with high-speed operation. These couplings are commonly used in centrifugal pumps, turbo machinery, and high-speed motors.

  • Compact Magnetic Couplings:

    Compact magnetic couplings are designed to have a smaller footprint, making them suitable for applications with limited space. They are commonly used in compact pumps, microfluidic systems, and portable devices where space efficiency is crucial.

  • Bi-Directional Magnetic Couplings:

    Bi-directional magnetic couplings allow power transmission in both directions between the input and output shafts. They are used in applications where bidirectional rotation or periodic reversing of motion is required, such as in mixing applications and reversible pumps.

  • Custom Magnetic Couplings:

    Manufacturers can also create custom magnetic couplings tailored to specific applications. Custom couplings are designed to meet unique requirements, such as special torque levels, specific environmental conditions, or integration with proprietary systems.

The choice of the magnetic coupling type depends on factors such as torque requirements, speed, space constraints, environmental conditions, and the level of customization needed for the specific application.

China Standard Magnetic Exchange Pump Couplings Magnetic Couplings  China Standard Magnetic Exchange Pump Couplings Magnetic Couplings
editor by CX 2023-08-09