One point of view is that the dual frequency conversion is good, the output is high, the line surface is good, and energy saving.
Single frequency conversion wire drawing machine cannot be used, it is too old, and the bearing is easy to be broken, and the oil seal cannot be worn. If the oil leaks, the bearing must be destroyed.
The maintenance cost is too high. The bearings of the double-frequency wire drawing machine can reach 5-7 years without replacement, and the mechanical seal does not need to worry about oil seal wear.
