Shanghai ANTISHICNC Metal Band Saw Machine 330 series recently launched a new band sawing machine G330, and the same series 330A and 330B with induction motor is different, G330 innovative use of permanent magnet motor, then why ANTISHICNC new Metal Band Saw Machine G330 to use permanent magnet motor? Next, Shanghai ANTISHICNC engineer will focus on introducing the differences between the two motors.
The motor used in Metal Band Saw Machine 330A and 330B is a 4P induction motor.Induction motor is also known as asynchronous motor , referred to as IM or ACIM, mainly by the end cap, rotor and stator composition. When alternating current passes through the stationary stator coil, the magnetic pole constantly changes, forming a rotating magnetic field, electromagnetic induction is used to induce the rotor to generate an induced electromotive force, and then the current is generated, and the rotating magnetic field acts between the current and the electromagnetic torque, thus allowing the rotor to rotate.
Metal Band Saw Machine G330 adopts permanent magnet motor.Permanent magnet synchronous motor or permanent magnet synchronous motor (PMSM) refers to a synchronous motor with a permanent magnet instead of winding, which is mainly composed of components such as stator, rotor and end cap. The stator reduces the iron consumption during the operation of the motor through the laminated structure, which is equipped with three-phase AC winding, called armature, the rotor can be solid or laminated pressed, embedded in the permanent magnet material, by the permanent magnet to establish the rotor magnetic field, the rotor and the stator magnetic field synchronous operation in normal work.
First, heat comparison
In the operation of induction motor, the flow of current in the rotor winding is consumed in the form of heat energy, so a lot of heat is generated in the motor, which affects the life of the motor.
However, there is almost no current generated in the rotor winding of the permanent magnet motor of G330 Metal Band Saw Machine, and there is no resistance loss, so the motor temperature is not high, so that the life of the permanent magnet is extended.
Second, efficiency comparison
The induction motor of 330A and 330B Metal Band Saw Machine consumes electric energy during operation because the rotor absorbs electric energy excitation, and this part of electric energy is eventually consumed in the form of heat in the winding, making the efficiency of the motor low.
The permanent magnet motor of the G330 Metal Band Saw Machine runs synchronously with the stator due to the rotor. There is no induction current in the rotor, there is no rotor resistance loss, and there is no rotor iron loss during stable operation, and the efficiency is increased by 4%-50%, because the rotor is not stimulated by induction current, so that the motor power is infinitely close to 1.
Third, volume and weight comparison
The same capacity of rare earth permanent magnet motor than induction motor volume, weight, materials used can be reduced by about 30%.
Fourth, price comparison
The use of high-performance permanent magnet motor materials is more expensive, and the rotor material of the induction motor is relatively inexpensive, so the cost of the induction motor is lower, so the overall price of 330A and 330B Metal Band Saw Machine will be lower than G330 Metal Band Saw Machine.
Fifth, noise comparison
The permanent magnet synchronous motor reduces the fan and cancels the induced current excitation, thus greatly reducing the motor noise.
Induction motors, on the other hand, require current excitation and motor bearings, so they generate a lot of heat during operation, so they need cooling systems, etc., and the noise naturally becomes larger.
Shanghai Antishi engineers tell the difference between the two motors from five aspects, if you want to be more efficient, the machine performance is more stable, and there is enough capital budget, you can buy G330 Metal Band Saw Machine, and launched a fully enclosed metal band saw machine G300, specially equipped with a fully enclosed protective cover, it will be safer to use, if the capital budget is limited, You can choose 330A and 330B Metal Band Saw Machine, also guaranteed with high quality sawing accuracy, can be purchased according to your own needs.
Key words: band saw machine, permanent magnet motor, induction motor
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