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Performance characteristics
â— Cummins QSL-9 supercharged, medium-cooled, electronically controlled engine, 252kW super power, normal working at an altitude of over 4,500 meters.
â— Improve the design of the hoisting machine rope groove, greatly improving the life of the wire rope.
â— Power head with heavy shock absorber can effectively buffer the impact when the drill pipe is dropped.
â—Unique power head pressure lubrication circuit solves the problem of mutual lubrication and oil leakage between power head pressure lubricating oil and hydraulic oil.
â—The balance valve of the variable amplitude cylinder and the mast cylinder has a non-pressure structure, which makes the luffing mechanism rise and fall and the mast landing speed is stable, preventing large impact during its movement.
â—In addition to the automatic idling of the two-stage engine, it can monitor the working status of the rig in real time and has multiple alarm functions.
â—Mast vertical degree automatic leveling system, in addition to automatic leveling of the mast, and can monitor the up and down of the mast.
â— Strict logic interlock control prevents driver misuse.
â—Unique hole depth precision measuring device, the hole depth error can be controlled at 10 cm and the drilling accuracy is 1 cm.
â— 10.4 inch true color display, high level man-machine interface, dynamic display of engine speed, fuel consumption and fault diagnosis information, mast verticality, rig working status, rig fault diagnosis and other information.
â— Intelligent fault detection system that dynamically displays the status of each actuator of the rig.
Main technical performance parameters
Maximum drilling torque kNm 220 Engine type Cummins QSL9
Maximum drilling diameter mm 2000 Maximum power kW 252
Maximum drilling depth locking type m 48 rated speed r/min 2000
Friction type m 60 main pump flow rate L/min 265
Drilling speed r/min 7~26 Maximum pressure Mpa 33
Maximum bauxite speed r/min 140 Maximum turning speed on board r/min 3.2
Mast forward angle ° 5 walking speed km/h 2.26
Mast back tilt angle ° 15 Track center distance mm 2200~3500
Mast left and right tilt angle ° 5 Track grounding length mm 4600
Main winch lifting force (1st floor) kN 200 Three-ribbed track shoe width mm 800
Main hoisting wire rope diameter mm 28 Traction kN 436
Main winch lifting speed m/min 62.5 Theoretical climbing ability% 70
Sub-winding lifting force (first layer) kN 110 working state equipment width mm 4300
Secondary hoisting wire rope diameter mm 22 working state equipment height mm 21050
Sub-winding lifting speed m/min 66 Transportation status equipment width mm 3000
Pressurized cylinder stroke mm 5300 Transport status equipment height mm 3500
Maximum pressing pressure kN 180 Shipping state equipment length mm 15180
Maximum lifting force kN 200 total weight t 70
Zoomlion's new ZR220A rotary drilling rig
The ZR220A rotary drilling rig is a high-efficiency hole-forming equipment for another large-diameter pile foundation project launched by Zoomlion after the ZR200 rotary drilling rig. The machine adopts expandable crawler chassis, self-propelled folding mast, retractable drill pipe, hydraulic load sensing control, integrated electronic control and display system, engine, hydraulic parts, reducer, four-wheeled belt, electronic control system components, etc. The main components are selected from the world's top brands. It is equipped with logic control of automatic engine power control, automatic hole depth detection, vertical leveling, vertical automatic positioning, direct display of working status and anti-misoperation. The utility model has the advantages of good stability of the whole machine, large drilling torque, high construction efficiency, flexible and flexible maneuvering, multi-function, good performance, advanced control and good cost performance.