Large triangular mast structure CRRC TR300 Rotary Drilling Rig

Power and Drilling Performance

The torque reserve is sufficient, with a rated output torque of 300kN · m and strong power. It has strong rock penetration ability in complex formations such as pebble layers, moderately weathered rock layers, and hard clay, and the power for deep hole construction does not drop.
High power imported engine with fast power response; The electrically controlled negative flow hydraulic system distributes power according to demand, with excellent fuel consumption control and high energy efficiency under heavy load conditions compared to similar models.
The maximum borehole diameter is 2-2.5m, and the maximum drilling depth is 75-90m, which is suitable for the construction needs of large aperture and deep pile foundations. It can undertake high-rise, bridge, subway, and high-speed railway pier foundation projects.

Structure and chassis stability

Relying on the heavy industry technology of CRRC Rail Transit, the reinforced heavy-duty chassis, low center of gravity design, high rigidity of the whole machine, and good stability against overturning in harsh construction sites such as mud and slopes. It is not easy to deform and crack under long-term heavy load.
High strength large triangular mast structure with high guiding accuracy; The verticality of the borehole can be controlled to be ≤ 0.5%, with small deviation in the borehole position, reducing the need for rework and hole cleaning processes, and ensuring stable pile quality.
The main winch increases the tension and thickens the steel wire rope, which has a long wear-resistant life and is less likely to slip or break during deep hole drilling.

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