... mud pump1300HP (960kW)×11300HP (960kW)×11300HP (960kW)×1Power transfer typeAC—VFD—ACmechanical+chain drivemechanical driveMastJJ170/42-KJJ170/31-KJJ170/41-KSubstructureDZ170 ... as ZJ30/1700L.ZJ30/1700DB and ZJ30/1700DBT are all VFD drilling rigs. ZJ30/1700DBT is trailer mounted drilling rig.
... , etc.2. Entire machine is controlled by PLC(two vector motors), man-machine interface,screen touch operation3.Unwinding part adopts ... as constant tension control for unwinding4.transmissiont part uses the vector frequency conversion motor,realize the constant line speed control. ... lead screw to adjust.6.Rewinding part uses the vector frequency conversion motor,to drive magnetic powder clutch,realized ...
... speed is changing,high yield4.japan(yaskawa)frequency converter control vector motor5.japan(tengcang)low friction cylinder control float roll tensio6 ...
... comfortable to takeLow noiseIntellectual microcomputer control systemSerial communication technologyHigh precision vector frequency convertorHigh precision encoder Full collective controlEmergency car lightingLight curtain ...
... operating system, TFT color screen and display of unbalance in vector formHard-bearing principle ensures quick change-over High balancing accuracy ...
... a more precise positioning.3. National seamless coverage: national precision vector map to update in time; more comprehensive information points.4 ...
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