皮带机速度保护传感器是皮带输送机的一种新型且简易的设备安全保护装置。
The speed protection transducer is a new and simple equipment of safety protection device for conveyor belt.
通过电动滚筒驱动的皮带机，如果直接起动，无法根据物料比重调节速度，无形中造成了电能的浪费，而且会缩短电动滚筒的使用寿命。
If we directly start the belt-driver which is driven by electric-roller, it can neither adjust speed according to the proportion of materials, nor prolong the life of electric-roller.
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