Why are tire shredders controlled with four contactors?

The tire shredder is electrically driven. The electrical appliances that control the motor are also important. The common tire recycling machine has two control modes: one is the star triangle control mode and the other is the positive and negative star triangle control. Both ways can be used to run the device. Only the star contact triangle requires only three contactors. The positive inversion star triangle control requires four contactor controls. Here we need to pay attention to the control methods of different materials and different manufacturers. Electrical control is different. Customers must pay attention to this issue when purchasing.

As for the three contactors or the four contactors, it is also necessary for the customer to experience it.

Different shredder manufacturers have different electrical controls. Whether it is a waste metal shredder or other types of shredders are high-intensity equipment. Because the machine processes more materials. Especially when shredding the headstock. The material itself is relatively hard. Relative vibration and sound are relatively large during processing. Mechanical strength requirements are also relatively high. Therefore, the electrical part is relatively important. When the tyre shredder headstock is used, the motor will instantaneously withstand the friction coefficient of the material and the spindle, and the motor current will increase instantaneously. At this time, the motor load will increase.

It is possible that the material will get stuck on the spindle. A reversal control is required to loosen the material and return the material to the working chamber through a reversal time. The motor returns to forward rotation through one time and continues to work.

If there is no reversal function, you need to manually stop the machine, manually turn the animal material, and then turn it on again.

However, it is more dangerous to increase the safety factor of workers' operation. And through the automatic control of electrical appliances, the whole process is in place. No manual manual operation is required to reduce personnel safety. Therefore, this control method is widely used in shredder control.