Product Description
Introduction of magnetic shaft coupling
Magnetic shaft coupling is a new kind of coupling, which connects motor and machine by permanent magnetic force.
They are consisted of 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 electric motor or gear box.
Magnetic shaft coupling are widely used in various industries and fields, such as chemical, papermaking, foodstuff, pharmacy, and so on.
Advantages of magnetic shaft coupling
» 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 use of standard pumps without expensive mechanical seals.
» No additional cost for purchasing mechanical seal spare parts and maintenance.
Technical drawing of magnetic shaft coupling
Specification of magnetic shaft coupling
| 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 shaft coupling
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 shaft coupling
The magnetic coupling works by using the power generated by permanent magnets. No external power supply is needed. These are permanent magnets not electro magnets.
Packing Method of magnetic shaft coupling
Double strength corrugated Carton and Wood case Sea Packing.
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Torque and Speed Limitations of Magnetic Couplings for Different Sizes and Applications
The torque and speed limitations of magnetic couplings depend on various factors, including the size of the coupling and the specific application requirements. Here’s a general overview of these limitations:
- Torque Limitations:
The torque capacity of a magnetic coupling is influenced by the strength of the magnets used, the size of the coupling, and the materials chosen for the rotor and containment shell. Larger magnetic couplings with stronger magnets and robust materials can handle higher torque requirements.
- Size and Application:
The size of the magnetic coupling plays a crucial role in determining its torque capacity. Smaller couplings are typically used in low-torque applications, such as laboratory equipment or small pumps. In contrast, larger couplings can handle higher torque demands, making them suitable for industrial-scale pumps and agitators.
- Speed Limitations:
The maximum speed at which a magnetic coupling can operate depends on several factors, including the rotational speed of the driving and driven shafts and the design of the coupling. High-speed applications, such as centrifugal pumps, require magnetic couplings designed to minimize eddy current losses and ensure stable performance at elevated speeds.
- Specialized Applications:
Some magnetic couplings are specifically designed for high-speed or high-torque applications, such as in large industrial pumps or agitators. These specialized couplings are engineered with materials and construction techniques to optimize performance under demanding conditions.
- Customization Options:
Manufacturers of magnetic couplings may offer customization options to tailor the torque and speed ratings to the specific needs of the application. This can involve selecting different magnet configurations, materials, and overall design adjustments to achieve the desired performance characteristics.
It is essential to consult with the coupling manufacturer or a qualified engineer to determine the appropriate magnetic coupling size, torque, and speed ratings for a specific application. Factors such as the fluid properties, load requirements, and environmental conditions should be taken into account to ensure the coupling’s optimal performance and reliability.
What are Some Real-World Examples of Successful Magnetic Coupling Implementations in Different Industries?
Magnetic couplings have found successful implementations in various industries, offering reliable and efficient solutions for a wide range of applications. Here are some real-world examples of their successful use:
- Chemical and Petrochemical Industry:
In chemical and petrochemical processes, magnetic couplings are employed in pumps and agitators to prevent fluid leakage and ensure a hermetically sealed system. This eliminates the risk of hazardous chemicals escaping into the environment and protects the integrity of the process.
- Pharmaceutical Industry:
In pharmaceutical manufacturing, magnetic couplings are used in mixers and reactors. The hermetically sealed design prevents contamination and allows for sterile operation, ensuring the highest level of product purity and quality.
- Food and Beverage Industry:
Magnetic couplings are used in pumps and mixers for food and beverage processing. The hermetic sealing feature ensures that there is no product contamination, meeting stringent food safety standards and maintaining the integrity of the processed food and beverages.
- Automotive Industry:
In automotive applications, magnetic couplings find use in cooling systems and turbochargers. Their high efficiency and reliability improve engine performance, and their non-contact design eliminates the need for lubrication, reducing maintenance requirements.
- Renewable Energy:
In wind turbines, magnetic couplings are used to transmit power from the turbine rotor to the generator. The maintenance-free operation and reliable power transmission make magnetic couplings a valuable component in wind turbine systems.
- Aerospace Industry:
Magnetic couplings are used in aerospace applications, such as aircraft fuel systems. Their leak-free design and tolerance to misalignment make them suitable for critical aerospace applications where safety and reliability are paramount.
- Marine Industry:
In marine applications, magnetic couplings are utilized in pumps and propulsion systems. Their ability to handle high torque and maintain efficiency at various speeds makes them suitable for different marine vessels and offshore platforms.
- Mining and Minerals:
Magnetic couplings are employed in mining equipment, such as slurry pumps. Their robust construction and tolerance to abrasive materials enhance the reliability and longevity of the mining equipment in harsh operating conditions.
These real-world examples demonstrate the versatility and effectiveness of magnetic couplings across multiple industries. Their ability to provide hermetic sealing, prevent fluid leakage, and offer reliable power transmission without mechanical wear makes them a valuable solution in critical systems where efficiency, safety, and reduced maintenance are essential considerations.
How Magnetic Couplings Prevent Leakage and Offer a Hermetically Sealed Solution in Industrial Processes
Magnetic couplings provide a hermetically sealed solution in industrial processes by utilizing their unique non-contact power transmission principle. This design allows them to prevent leakage effectively and maintain a reliable, sealed environment. Here’s how magnetic couplings achieve this:
- Non-Contact Power Transmission:
Magnetic couplings operate without any physical connection between the driving and driven shafts. Instead, they use a magnetic field to transmit torque from one rotor to another. The absence of direct contact between components eliminates the need for shaft seals that are common in traditional mechanical couplings.
- Containment Shell:
Magnetic couplings consist of two rotors—an outer rotor connected to the driving shaft and an inner rotor connected to the driven shaft. These rotors are separated by a containment shell made of non-magnetic material with high magnetic permeability. The containment shell encloses the magnetic fields and acts as a barrier to prevent fluid leakage.
- Hermetic Sealing:
The containment shell provides hermetic sealing between the input and output shafts. As the magnetic fields pass through the containment shell, it effectively seals the coupling, creating a barrier that isolates the fluid being handled in the pump or agitator from the external environment. This hermetic sealing prevents fluid leakage, even when dealing with hazardous or corrosive fluids.
- No Dynamic Seals:
In mechanical couplings, dynamic seals are used to prevent fluid leakage at the point where the shaft exits the casing. These seals are prone to wear, aging, and failure over time, leading to potential leaks. Magnetic couplings eliminate the need for dynamic seals, reducing the risk of fluid leakage and improving the overall reliability of the system.
- High Torque Transmission:
Magnetic couplings are designed to handle high torque transmission, making them suitable for a wide range of industrial processes. The strength of the magnetic field and the proper choice of materials ensure that the coupling remains effective and leak-free even under challenging operating conditions.
Due to their hermetically sealed design, magnetic couplings are commonly used in industries where fluid leakage could lead to product contamination, environmental hazards, or safety risks. These industries include chemical processing, pharmaceuticals, food and beverage, and other applications where a sealed and leak-free environment is critical.
editor by CX 2024-02-12