焊件移动或变位机构，如焊接滚轮架，头尾架翻转机，回转平台和变位机等，精密型的移动变位机构应配伺服电动机驱动。

3 mobile or welding positioner, such as welding roller frame, frame head and tail flip machine, rotary platform and positioner, mobile precision displacement mechanism should drive with servo motor.

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ZSN4系列直流电动机是在Z4系列直流电动机基础上开发设计的具有高起动转矩、高过载能力电机，主要应用于驱动水泥回转窑等设备。

Series ZSN4 DC motors are the new generation of Z4 Series DC motors with high starting torque and overload. Mainly used as the drive equipment for cement rotary kiln.

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