Automatic Soil Discharging SANY SR250 Rotary Drilling Rig

Strong rock penetration and wide geological coverage

250-260 kN · m torque+high pressure, stable drilling into 30-50 MPa moderately weathered rocks (limestone, sandstone), fast footage in pebble/sand layers.
Standard configuration includes a high-strength drilling rod with a diameter of 440 mm, good torsional rigidity for deep holes (50-70 m), and a verticality of ≤ 1/200.

High efficiency, fast pile completion

The main winch quickly merges and lowers at high speed, reducing drilling/unloading time by 25% and single pile cycle by 15% compared to the same level.
Isuzu/Cummins 242 kW+Kawasaki Hydraulic, with smooth composite action, φ1.8–2.3 m、 The efficiency of piles with a depth of 40-60 meters is outstanding.

Good stability and sufficient safety

Reinforced telescopic chassis+truss type anti vibration mast, low center of gravity, stable construction on soft foundation/steep slope, strong anti overturning ability.
Double rotary reducer, with locked rotation and no shaking during rock drilling; The mast is supported by a large angle oil cylinder and double buffering to protect the drill rod and power head.
Equipped with 360 ° monitoring, one click vertical adjustment, bottom protection, and automatic pulse pressure rock breaking.

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