How To Quickly Distinguish Between A Magnetic Powder Brake And A Magnetic Clutch?

Quickly distinguish between magnetic particle brake and magnetic particle clutch from 3 points:
First of all, we can distinguish from the usage scenarios. Magnetic particle brakes are usually used in occasions that require continuous braking, such as cranes, winches, etc., while magnetic particle clutches are mostly used in occasions that require frequent start-stop and forward and reverse rotation, such as machine tools and other equipment.
Secondly, we can distinguish it structurally. The structure of the magnetic particle brake is relatively simple, usually composed of a stator, a rotor, magnetic particle, etc., while the magnetic particle clutch has an obvious input and output end, and its structure is also more complex.
Finally, we can distinguish from how it works. The working principle of the magnetic particle brake is to make the magnetic particle sticky between the rotor and the stationary plate through electromagnetic force, so as to achieve the effect of braking. The magnetic particle clutch controls the adsorption and separation of the clutch plate through electromagnetic force, so as to complete the mechanical transmission.

Magnetic particle brake brief introduction:
Magnetic particle brakes are based on electromagnetic principles and the use of magnetic particles to transmit torque. It has the characteristics that the excitation current and the transmission torque are basically linear. It can transmit a certain torque under the condition that it has nothing to do with the slip, and has the advantages of fast response, simple structure, no pollution, no noise, no impact vibration and energy saving. It has been widely used in papermaking, printing, plastics, rubber, textile, printing and dyeing, wire and cable, metallurgy, tablet press and other related coiling processing industries in unwinding and winding tension control. Magnetic particle brakes are also often used for dynamometer loading and braking of transmission machinery.

Magnetic particle brake use:
1. Buffer start and stop: use the smooth characteristics and constant torque characteristics of the connection to achieve buffer start and stop.
2. For continuous sliding and tension control
3. Torque limiter
4. High-speed response
5. For power absorption
6. Stop positioning
7. For simulated loads

Magnetic Particle Brake Features:
1. It can be easily controlled in a wide range.
2. It can achieve continuous sliding operation.
3. You can get a stable torque.
4. No chirps. The sluggish slippage of the operating surface occurs due to friction, but it does not occur here, and there is no connecting sound, so the operation is quite quiet.
5. The heat capacity is very large. The use of magnetic particles with excellent heat resistance and the use of an ideal cooling method make it safe to use even in the case of severe continuous sliding operation.
6. It can achieve a smooth continuous and driving state. Since the coefficient of static friction and the coefficient of dynamic friction are almost the same, there is no oscillation when fully connected, and the acceleration and deceleration of the load can be adapted.

Precautions for the use of magnetic particle brakes:
1. Please pay attention to moisture. If the magnetic particle is wet, the performance will become unstable, so be careful not to let oil or moisture get inside. Especially when installed in a gearbox, the oil enters through the shaft, so it is completely sealed with a film.
2. Pay attention to the surface temperature. The maximum surface temperature caused by continuous operation is 90 degrees Celsius or less during operation, and if this value is exceeded, the durability is greatly reduced. Be sure to use the above limit temperature as the standard, and be sure to keep it within the allowable sliding rate when using.

Magnetic particle clutch in brief introduction :
Magnetic powder clutch, also known as electromagnetic powder clutch, magnetic powder clutch, is based on the electromagnetic principle and the use of magnetic powder to transmit torque, with excitation current and transmission torque is basically a linear relationship, in the case of irrelevance to the slip can transmit a certain torque, with fast response, simple structure, no pollution, no noise, no impact vibration energy saving and other advantages, is a multi-purpose, superior performance of automatic control components.

Magnetic particle clutch use:
1. Buffer start, stop: use the smoothness characteristics and constant torque characteristics of the buffering effect when linking, that is, the peak torque with stable acceleration and no impact.
2. For continuous sliding and tension control
3. Torque limiter
4. High-speed response
5. For power absorption
6. Stop positioning
7. For simulated loads
8. It can be used for the separation effect and torque braking effect in the process of torque transmission.
9. It is suitable for constant tension control system, such as: printing machine, slitting machine, laminating machine, coating machine, paper machine, wire drawing machine and cable winding machine, as well as metal plate, strip, film and other processing equipment and textile machinery.
10. It can replace ordinary clutches for quick clutches of machine tools, CNC [1] devices, computers, wide-line printers and various precision machinery.
11. As an overloader, it can be applied to mining lifting machinery, lifting machinery, cement, steel and other mechanical equipment, which can make the prime mover start without load, gradually load, and improve the load capacity of the equipment.
12. Stepless speed regulation, with sensors and control circuits, stepless speed regulation can be realized, especially for the fine-tuning of speed at high speed and the speed regulation system of medium and small power.
13. In the overload protection, when the working system has an accident and the torque is overloaded, the clutch will automatically slip, so as to protect the mechanical equipment and the original force.

Magnetic particle clutch features:
1. Magnetic particle clutch and brake are an automatic control element with superior performance.
2. It has high linearity and high-precision torque control.
3. It adopts high-temperature resistant coil superalloy magnetic powder, which has a long service life, smooth connection and no impact magnetic particle clutch.
4. CNC precision manufacturing, high precision, fine processing, good linearity and superior performance.
5. The magnetic powder has high purity, no black toner, stable performance and long life.
6. Aluminum alloy structure, with excellent heat dissipation performance, good demagnetization, fast response speed.
7. Stable operation, no vibration, no impact and no noise in the starting, running and braking states.
8. The torque is proportional to the excitation current within the specified torque range, and can be used as a linear adjustment element.
9. The output torque is constant, because the size of the torque only depends on the magnitude of the excitation current, and has nothing to do with the slip speed.
10. Frequent dissociation, fast response speed and high frequency, which can reach 40-60 times per minute, can be widely used in fast working conditions and high-frequency occasions.
11. The power amplification factor is high, and a large amount of transmission power can be controlled with a small excitation current, which is easy to realize automatic control.
12. Stable operation, no vibration, no impact and no noise in the starting, running and braking states.
13. Overload protection, in the case of torque overload, the automatic slip operation plays the role of overload protection.
14. Small size and light weight. Easy to install and long service life.

Magnetic particle clutch precautions:
1. Please use the magnetic particle clutch in the normal installation method (using the high-speed rotating side as the input side). If the structure of the machine has to be installed in and out of the shaft backwards, please be sure to use it at a rate of 1000r/min or less. If the input shaft and output shaft are installed in reverse, the machine will idle for a long time, and the magnetic particle will be stirred, which will greatly shorten the service life of the magnetic clutch.
2. Please pay attention to moisture. If the magnetic particle is wet, the performance will become unstable, so be careful not to let oil or moisture get inside. Especially when installed in a gearbox, the oil enters through the shaft, so it is completely sealed with a film.
3. Pay attention to the surface temperature. The maximum surface temperature caused by continuous operation is 90 degrees Celsius or less during operation, and if this value is exceeded, the durability is greatly reduced. Be sure to use the above limit temperature as the standard, and be sure to keep it within the allowable sliding rate when using.The magnetic particle clutch is formed by merging the transmission unit (input shaft) and the driven unit (output shaft). Filled with granular magnetic particles (volume approx. 40 microns). The principle of magnetic particle brakes is similar to that of magnetic clutches, except that the transmission unit becomes a fixed unit.

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