Adequate power reserve SANY SR280R Rotary Drilling Rig

Description

Engine (Brand & Specifications)	Caterpillar CAT C9.3B 4-stroke water-cooled EFI turbocharged intercooled diesel engine
Engine Rated Power	298kW
Engine Rated Speed	2000rpm
Max. Drilling Diameter	2800mm
Max. Drilling Depth	80m
Max. Rotary Head Torque	280kN·m
Rotary Head Speed Range	6~28rpm
Main Winch Max. Lifting Force	280kN (1st layer steel wire rope)
Crowd System Max. Push Force	220kN
Crowd System Max. Pull-back Force	280kN

Strong rock penetration performance

It is specially made for the construction of socketed pile foundation and can handle the hard rock stratum with hardness above 100MPa With automatic pressurization and stepless pressure regulation technology, the construction efficiency in rock is improved by 50%, the adaptability of complex strata such as karst cave and moderately weathered limestone is strong, and the coring capacity is excellent. KN ・ m high torque power head, low rotation speed and high torque output, outstanding ability of crushing hard rock.

Stable and durable structure

Five-level shock absorption technology improves the anti-seismic performance of the whole machine by 30%, greatly reducing the loss of the body caused by drilling impact. High-strength steel is adopted for mast, with structural rigidity increased by 16.7% 〜 40%; The power head is equipped with double buffer protection device, and the service life of the reducer and the motor is extended by 3 times. Rear main winch+parallelogram luffing structure, with stronger construction torsion and shaking resistance.

Intelligent hydraulic control system

Electronic proportional hydraulic control system, with smooth compound action. The main winch is equipped with automatic lowering and floating rope functions, and the operation is soft and accurate. Provide three construction modes: economic mode is applicable to soft soil layer, standard mode is applicable to ordinary stratum, and rock entry mode is applicable to rock stratum, so as to automatically match output power and reduce useless energy consumption.

Special chassis with high construction stability

Sany custom-made widened crawler chassis, reasonable weight of the whole machine, low center of gravity, and difficult to roll over in soft foundation and slope site operation. The mast can be folded automatically, which can save time and labor in assembling and disassembling the whole machine; Wide maintenance space, convenient maintenance in later period.

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