ZJ50DB AC VFD Electric Drilling Rig

• Parameters

Drilling rig modelZJ50/3150DB
Nominal drilling depth, m114mm(4 1/2″) Drill pipe3500-5000
127mm(5″) Drill pipe2800-4500
Max. hook load, KN3150
Hook speed, m/ s0-1.258
Line strung of hoisting system12
Drill line diameter, mm35
Max. pull of fast line, KN350
DrawworksModelJC50DB
Rated Power KW1100
SpeedI, smooth change
Main brakeHydraulic disc brake + dynamic brake
Crown blockTC315
Traveling blockTC315
Sheave OD of hoisting system, mm1270
HookDG315
SwivelModelSL450
Stem dia, Mm75
Rotary tableTable opening mm952.5
SpeedI, smooth change
Drive modelIndependent electric drive
MastTypeK
Height, m45
Max. load, KN3150
Sub-StructureTypeDual lift or swing lift
Floor height, m9
Clear height, m7.6
Mud pumpModel × numberF-1600×2
Drive modeElectric drive
Electric drive modeAC-DA-AC, one for one control
Total power, kW3×1050

• Features

  • • Adopting advanced fully digital AC variable frequency technology, the intelligentized driller control is realized through the integrated design of PLC, touch screen, pneumatic, electric, hydraumatic and drilling instrument.

• Drawworks, rotary table, and mud pump are driven by wide frequency, high power motor. Thereby the stepless speed regulation is reached.

• Drawworks is single shaft gear drive drawworks with 2 gear, compact size, light weight, little vibration, low noise, high efficiency and long service life and adopt the compound mode with hydraulic disc brake and motor dynamic brake.

• Automatic drilling is obtained by drawworks main motors or auxiliary motor. At the same time, the trip and drill working condition are monitored in real time.

• Adopt intelligentized soft starter, ET200 or ASI module to protect and supervise the MCC system.

•  Intelligentized position control of traveling block is supplied to prevent top and low collision.

• Protective functions including loss pressure of pneumatic or hydraumatic, the fault of electrical control system or motor, the limit of rotary table torque or pump pressure is provided.

• Independent driller cabin is on the user’s requirements. To realize intelligent control of pneumatic, electric, hydraulic and instrument system so that driller completes the total operations in the cabin for better working conditions and lessening working strength. Logic control, supervision and maintenance during complete drilling operations are available by PLC process. The drilling data can be stored printed and remote transmitted.

• Top drive drilling system could be equipped.