Khung gầm cực kỳ ổn định của giàn khoan xoay JINT SD28

Strong torque, outstanding ability to penetrate rocks and large diameters

286kN · m torque+250kN pressure+5.7m long stroke, stable drilling in strongly/moderately weathered rocks, high drilling efficiency.
The maximum diameter of 2.4m with casing is large, suitable for pile foundations of large bridges, high-speed railways, and super high-rise buildings.
The power head speed is adjustable within a wide range of 6-30rpm, providing fast soil driving, stable rock entry, and efficient soil unloading.

Reliable structure, precision in deep pile construction

The large triangle+four-bar linkage reinforced mast has strong bending and torsion resistance, overall stability, and deep piles do not sway.
Solid heat-treated guide rail, good pressure straightness, high hole verticality, and stable pile quality.
Scalable chassis+wide rail design, strong anti overturning ability under harsh working conditions.

multifunctional construction methods, one machine with multiple uses

Compatible with various construction methods such as rotary drilling, down the hole hammer, forward and reverse circulation, long spiral, casing, etc., suitable for complex formations.
Friction/machine lock dual drill rods are optional, with a depth coverage of 50-64m, meeting the needs of medium and deep piles.
It can be equipped with short spiral, sand dredging, rock entry, bottom expansion and other drill bits, with strong geological adaptability.