Vibration before the beginning of works exceeded 100 mm/sec and balancing on the working speed was not possible. So first balanced at a very low speed.After the termination of works at operating frequency of rotor vibration speed (1500-1600 rpm) was ~ 0.5 mm/sec.
Old friend – mulcher Nokamic . Every time balance it succeeds very well. Minimum values of vibration 0.2 and 0.3 mm/sec.
Mulcher pt300. The rain didn’t prevent us from balancing the rotor. The level of vibration after balancing is good. As usual, after the balancing process is complete, the rain is over …
Mulcher Nokamic again. The vibration level has been reduced by more than 10 times.
Mulcher pt300. Both bearings are severely damaged. After the bearings are replaced and the rotor is balanced, the vibration is less than 1 mm/sec.
Mulcher nokamic. Both bearings are severely damaged. After replacing both bearings and rotor balancing vibration decreased from 100 mm/sec to 1 mm/s.
The rotor of the crusher was tightly stretched to the floor. This made it possible to get rid of resonance at the frequency of rotation and to get more accurate results in measuring vibration levels.
Balance of mulcher on forklift Terex PT-100