Technical Specification for XJ550 Workover Rig The cathead cylinderEfficiency lift1100mmMax. pull110kNWork pressure14MPadeadline anchor and weight indicatorModel JZG20SubstructureDrilling floor height4.5mDrilling floor square5m×7m（L×W）Structure6-pole, telescopicClear height3.5mMax. rated clear load of rotary beam1350kNMax. rated setback capacity1500mm（4” DP）It consists of big and small mouse hose, big clamp and tail line device, door ramp, ladder and escape slide.Cat walkV doorDog house and support rackDP rack4 jointDrawworksModelJC21Input power450kWMain drumDrum length912mmDrum body Dia450mm 1＇ LeBus groovingDia. of brake drum1070mmWidth of brake drum310mmUsing Dia. of wireline groove26mm（29mm）Max. fast pull210kNMax. speed of fast line1.5m/sClutchModelATD324HType Axial thrustTorque55kN.mBrake belt angle345°Auxiliary brakeModelEaton，WCB224Max. slide rotational speed715rpmMax. free cycle-rotational speed1200rpmBrake torque22.58kN.m（气压 Air pressure：0.55MPa）Hot power407.2kWCoolant water displacement204.4L/mindrilling wire lineWireline Dia.Φ26mmWireline length380mtransfer caseModelFDX140Max. input torque14000 N.mMax. input rotational speed2100rpmAngle gear boxMax. input torque10000N.mmax. input rotational speed1800rpmSpeed ratio1.857Rotary table transmission deviceincluding rotary table box and sloping chain boxCrown BlockModelTC135Max. load1350kNPulley Qty5Wireline Dia.Φ26mmTraveling hookModelYG – 135Max. load1350kNRotational angle360°Wireline Dia.Φ26 mm（Φ29 mm）SwivelModelSL135Max. rated load1350kNWorking pressure21MPaLinkModelDH150Max. load150 TRotary tableModelZP-175Max. Dia.Φ444.5mm (20.5″)Max. rotational speed300rpmGear transmission ratio3.68drill pipe ramp and catwalkmast basemud boatdriller’s consoleHydraulic drawworksModelYC-5；YC-3Max. pull50kN；30kNHydraulic systemThe hydraulic system consists of hydraulic torque converter with pump to drive oil pump, its execution unit consists of 2 mast telescopic cylinders, 2 mast raising cylinders, 4 legging cylinders, 2 break-out screw cylinder, hydraulic winch.Hydraulic oil pump P25Max. displacement 165 L/min Work pressure 14MPaModel, hydraulic oil WinterL-HM32/Antiwear hydraulic oil SummerL-HM22/Anti-wear hydraulic oilElectrical systemThe system consists of low and high voltage system.The low voltage control system is supplied power by generator together with diesel engine, the working voltage is 24V, it mainly used for indicating light of control system and diesel engine start.High pressure control system consists of control light of explosion-proof control box, power system of water-recycling cooling pipeline.Controlling system The control system consists of hydraulic system, pneumatic system, electrical system to complete the drilling operation, it consists of operate valve and instrument.
