The main reasons for the stationary or slow movement of the cutting blade of the steel bar coiling machine are as follows:

1. Phase error
2 T2 time is too short or zero
3. Unloading wire open circuit
4. The sealing ring of the cutting blade is damaged
5. Wear of solenoid valve core
6. The oil pressure in the circle is too low
7. The oil filter is blocked or the oil volume is insufficient.