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Current position:Home > News The difference between a linear motor with iron core and a linear motor without iron core

The difference between a linear motor with iron core and a linear motor without iron core

time:2017-4-21  click:11747
The advantages of linear motor: high acceleration, short acceleration and deceleration process, high transmission strength, steady thrust; The length of the trip is unlimited and there is no performance loss; Run zero contact, no wear, low noise, brushless design; Suitable for vacuum and harsh environment; High-precision, precision maintenance is very good, stepping linear motor, it can achieve a step distance of 1 μn accuracy, so, linear motor is applied to many precision instruments and equipment.
What is the difference between a straight-line motor without a core and a straight-line motor with a core?
No iron core refers to the stator only plastic film plastic sealed copper coil, rotor with permanent magnets. The iron core means that both the stator and the rotor have iron cores or one of them has iron cores.
The advantages of non-core linear Motors:
1. No attraction, no iron core linear motor installation does not need to deal with attraction, so easy to install.
2. .. Without the alveolar effect, it is easy to achieve more stable motion competition to achieve higher accuracy.
3. Stitch stator, stroke can be extended.
4. No iron core means higher acceleration and reduced speed.
The disadvantage of non-core linear Motors:
1. Higher thermal resistance, I-shaped structure design to alleviate this problem.
2. The motor power without iron core is very small.
3. The unit cost is high, use twice the amount of magnets.
There are iron core linear motor advantages:
1. Lower costs.
2. Heat dissipation is better than no core.
3. High thrust and high stiffness. And ...
The disadvantage compared with the non-core linear motor:
1. There is a alveolar effect that limits the smoothness of the movement.
2. The normal attraction is 5 to 13 times the resulting thrust.
The above article comes from the development and production of Kunshan Tongmao Linear Motor(www.islam4africa.net), professional linear motor, linear motor, coil motor, and linear platform.
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