KR285C low version rotary digging


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KR285C low version rotary digging

Product model: KR285C short version
Working height: 11m
Whole machine weight: 65t
Product Description


●High-performance hydraulic system and control system in cooperation with Tianjin University CNC

Hydraulic Institute of Technology, which can realize the machine efficient construction and real-time


●High security, designed in strict accordance with European Union safety standards EN16228. Meet the

requirements of dynamic and static stability.

■Imported CAT336D chassis, with skilled technology ,reliable and stable performance;

■Optimized structure of luffing mechanism and mast can extend structural components’ service

life greatly;

■Unique structure of folding mast can ensure the overall transportation and reduce the transport size;

■Advanced design of rotary angle displacement output mechanism and central rotary joint output

angular displacement can get higher reliability;

■Innovative drilling bucket depth measurement system can show higher accuracy than the average rig;

■The function of main winch bottoming protection and priority controlling can make the operation easier;

■The reversible use of the driving head’s chain can extend the service life;

■Multi-stage damping technology of the driving head can ensure the whole construction more stable;

■The technology of mast automatic verticality can make the vertical accuracy of the hole higher;

■The innovative design of luminous hot wheel can ensure construction in night safer;

■The humanized design of chassis back can increase storage space efficiently;

■New design of two-stage operating interface can make it more convenient to operate.


Technical specification
Torque  285kN.m
Max. diameter 2300 mm
Max. drilling depth 94/61m
Speed of rotation 7~26 rpm
Max. crowd pressure 220 kN
Max. crowd pull 220 kN
Main winch line pull  320 kN
Main winch line speed 70 m/min
Auxiliary winch line pull 110 kN
Auxiliary winch line speed 80 m/min
Stroke(crowd system) 6000 mm
Mast inclination(lateral) ±5°
Mast inclination(forward) 5°/90°
Max. operating pressure 45MPa
Pilot pressure 5 MPa
Travel speed 2.0 km/h
Traction force  400 kN
Operating height 22700 mm
Operating width 4300 mm
Transport height 3510 mm
Transport width 3000 mm
Transport length 16100 mm
Overall weight 80 t
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