Committed to promoting the intelligent upgrade of marine engineering machinery rotary drilling rigs through technological innovation

JF220L Crawler Reverse Circulation Drilling Rig

JF220L Crawler Reverse Circulation Drilling Rig


Product Details

Performance Features

1.This equipment adopts a crawler chassis. The hydraulic system composed of the engine and hydraulic pump installed at the rear of the upper vehicle drives the motor reducer of the crawler chassis to realize the self-propelled function.
2.Four hydraulic outriggers are installed on the front and rear sides of the crawler chassis. The main unit can be supported and leveled horizontally in all directions without ground leveling on the construction site. The outriggers are independently controlled for flexible opening and closing. During operation, the hydraulic outriggers extend outward, with the maximum supporting width of the left and right outriggers reaching 4.5 meters.
3.An auxiliary gantry frame is fitted inside the main gantry frame, which effectively improves the guiding performance, ensures higher construction stability without shaking, and greatly extends the service life of drill pipes. The power head is mounted on the inner side of the lower end of the auxiliary gantry frame. Hydraulic cylinders for lifting the power head (together with the auxiliary frame) are installed inside the square vertical tubes of the auxiliary frame.
4.The power head is specially designed for rotary drilling rigs and driven by three 107 variable displacement motors to boost output torque. The slurry pump is directly driven by a 90 KW electric motor, eliminating energy loss from electro-hydraulic conversion and reducing construction costs simultaneously.
5.Two independent hydraulic systems are arranged at the hydraulic power station on the rear of the platform:
Ⅰ. The travel hydraulic system consists of a 103 KW four-cylinder diesel engine and a negative flow constant power variable pump, serving executive components including travel motors, main unit outrigger cylinders, door frame outrigger cylinders and mast lifting cylinders. It facilitates on-site travelling and accurate pile hole positioning of the drilling rig.
Ⅱ. The power head hydraulic system is composed of a 132 KW high-efficiency three-phase asynchronous motor and a negative flow constant power variable pump, applied to the power head operation, lifting cylinders, manipulator cylinders, hydraulic winches and other actuators. Hydraulic components adopt well-known domestic and international brands such as Rexroth, Kawasaki (Korea), HC Hydraulics (Italy), Jiangsu Hengli and Sichuan Changjiang Hydraulics, delivering superior and stable performance.

 

Main Technical Parameters

Engine Model   Weichai + Electric Motor
Rated Power kw 103+132
Rated Speed r/min 2300+1500
Max. Drilling Diameter mm 2500(Rock)/4000(sediment)
Max. Drilling Depth m 150
Power Head Max. Output Torque KN-m 220
Rotation Speed r/min 7-20
Lifting Cylinder Max. Lifting Force KN 1000
Max. Pressure KN 1000
Max. Stroke mm 4200
Vacuum Pump Matching Power KW 15
Ultimate Pressure Pa 3300
Max. Flow Rate L/S 138.3
Mud Pump Matching Power KW 90
Flow Rate m/h 1300
Head m 12
Main Hydraulic Station Matching Power KW 132
Hydraulic System Working Pressure MPa 31.5
Auxiliary Jib Crane Max. Lifting Force KN 10
Steel Wire Rope Diameter mm 8
Max. Hoisting Speed m/min 17
Chassis Max. Travel Speed Km/h 1.6
Chassis Width mm 3000
Track Width mm 600
Track Ground Contact Length mm 3474
Drill Pipe Specification mm Φ325×25×2000
Main Unit Weight Kg 33400
Overall Dimensions Working Condition (L×W×H) mm 8860×4500×8100
Transport Condition (L×W×H) mm 9200×3000×3550

Keywords:

JF220L Crawler Reverse Circulation Drilling Rig

Performance Features

1.This equipment adopts a crawler chassis. The hydraulic system composed of the engine and hydraulic pump installed at the rear of the upper vehicle drives the motor reducer of the crawler chassis to realize the self-propelled function.
2.Four hydraulic outriggers are installed on the front and rear sides of the crawler chassis. The main unit can be supported and leveled horizontally in all directions without ground leveling on the construction site. The outriggers are independently controlled for flexible opening and closing. During operation, the hydraulic outriggers extend outward, with the maximum supporting width of the left and right outriggers reaching 4.5 meters.
3.An auxiliary gantry frame is fitted inside the main gantry frame, which effectively improves the guiding performance, ensures higher construction stability without shaking, and greatly extends the service life of drill pipes. The power head is mounted on the inner side of the lower end of the auxiliary gantry frame. Hydraulic cylinders for lifting the power head (together with the auxiliary frame) are installed inside the square vertical tubes of the auxiliary frame.
4.The power head is specially designed for rotary drilling rigs and driven by three 107 variable displacement motors to boost output torque. The slurry pump is directly driven by a 90 KW electric motor, eliminating energy loss from electro-hydraulic conversion and reducing construction costs simultaneously.
5.Two independent hydraulic systems are arranged at the hydraulic power station on the rear of the platform:
Ⅰ. The travel hydraulic system consists of a 103 KW four-cylinder diesel engine and a negative flow constant power variable pump, serving executive components including travel motors, main unit outrigger cylinders, door frame outrigger cylinders and mast lifting cylinders. It facilitates on-site travelling and accurate pile hole positioning of the drilling rig.
Ⅱ. The power head hydraulic system is composed of a 132 KW high-efficiency three-phase asynchronous motor and a negative flow constant power variable pump, applied to the power head operation, lifting cylinders, manipulator cylinders, hydraulic winches and other actuators. Hydraulic components adopt well-known domestic and international brands such as Rexroth, Kawasaki (Korea), HC Hydraulics (Italy), Jiangsu Hengli and Sichuan Changjiang Hydraulics, delivering superior and stable performance.

 

Main Technical Parameters

Engine Model   Weichai + Electric Motor
Rated Power kw 103+132
Rated Speed r/min 2300+1500
Max. Drilling Diameter mm 2500(Rock)/4000(sediment)
Max. Drilling Depth m 150
Power Head Max. Output Torque KN-m 220
Rotation Speed r/min 7-20
Lifting Cylinder Max. Lifting Force KN 1000
Max. Pressure KN 1000
Max. Stroke mm 4200
Vacuum Pump Matching Power KW 15
Ultimate Pressure Pa 3300
Max. Flow Rate L/S 138.3
Mud Pump Matching Power KW 90
Flow Rate m/h 1300
Head m 12
Main Hydraulic Station Matching Power KW 132
Hydraulic System Working Pressure MPa 31.5
Auxiliary Jib Crane Max. Lifting Force KN 10
Steel Wire Rope Diameter mm 8
Max. Hoisting Speed m/min 17
Chassis Max. Travel Speed Km/h 1.6
Chassis Width mm 3000
Track Width mm 600
Track Ground Contact Length mm 3474
Drill Pipe Specification mm Φ325×25×2000
Main Unit Weight Kg 33400
Overall Dimensions Working Condition (L×W×H) mm 8860×4500×8100
Transport Condition (L×W×H) mm 9200×3000×3550

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