Drag system and hydrocylinder system is supplying by one bump,and the chief system is equipped with the functon constan voltage.

 
  • 掘進(jìn)機行走、油缸系統采用恒功率、壓力切斷、負載敏感單泵控制系統,其控制閥采用負載敏感比例多路換向閥。
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