Strong rock penetration capability SANY SR285 Rotary Drilling Rig

High torque, strong rock penetration, easy to hit medium hard rocks

285kN · m stable torque+5-24rpm wide speed, high efficiency in moderately weathered rock, hard clay, and dense gravel layers.
260kN high pressure+335kN strong lifting and pulling, with a rock penetration ability 10% stronger than its peers, and deep holes do not slip.
The sixth generation reinforced drill rod has stronger anti torsion of the machine lock rod and good deep hole stability.

Deep hole with large aperture, long casing “self pulling out”

94m friction resistance/61m machine lock, meeting the requirements of high-rise and bridge ultra deep piles.
Long casing special version (SR285RW10): With a single lower casing of 17m and a lifting force of 355kN, it can independently construct casing depths of 40-47m without the need for auxiliary equipment from Sany Group.
The maximum pile diameter is 2.3m, suitable for large bearing platforms and high bearing capacity pile foundations.

Powerful, efficient, and fast pile forming speed

Isuzu has a high horsepower of 310kW, sufficient power reserve, and can withstand heavy loads without losing speed.
Kawasaki negative control hydraulic and main winch merge, with fast response and lifting speed (75m/min), and short cycle time.
The pressurized winch can quickly lift and lower at a speed of 21m/min, which is three times that of ordinary models and reduces auxiliary time.

Strong structure, high reliability, and construction site durability

Mast, carriage, chassis finite element optimization+robot welding+100% flaw detection, no cracking after 10000 hours.
Heavy duty reducer, heavy-duty slewing bearing, extended guide key, high reserve factor for critical components, low failure rate.
Specialized rotary excavator chassis, 700mm wide tracks, low ground pressure ratio, and less prone to sinking on soft terrain.

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