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The Straight Auger is a high-performance drilling tool designed for vertical soil excavation in piling operations. Its simple yet robust design makes it ideal for loosening and extracting cohesive soils, sands, and gravel during rotary drilling processes.
Spherical hobs are very mature and are widely used in many equipment, such as rotary drilling rigs, RCD, pipe jacking machines, etc. By analyzing the use of ball-tooth hobs on the above equipment, it can be known that when there is sufficient propulsion pressure and the rock layer strength is about 130MPa, the footage speed of the spherical tooth hob can be maintained at 0.3~0.5m/ h. And the footage speed is relatively stable. When the spoil discharge is sufficient, the service life of one spherical tooth hob can reach a construction length of 300m.
Our tremie pipes, crafted from premium drawn steel plates for exceptional durability, feature threaded male-female joints for easy assembly. The standard set includes 4m bottom pipes, 3m standard pipes, and 0.5–2m short pipes. Ideal for bored pile concrete pouring, these pipes are lowered through steel reinforcement cages to deliver concrete precisely, preventing defects like segregation or gaps, shielding concrete from contamination, and ensuring superior pile construction quality.