For deep excavation work and cutting/removal of underground obstacles! Super Top Method.
The construction of place-driven piles in ground with boulders or bedrock, as well as deep excavation work, demonstrates its effectiveness in cutting and removing underground obstacles.
To safely carry out difficult all-casing deep drilling, maintaining high vertical accuracy while pushing in the casing and the reliability of the chuck device are key points. The RT series tubing equipment used in the Super Top method features a wedge-type chuck device and boasts one of the largest rotational torque and pull-out force in its class. Additionally, aiming for efficient and economical rock cutting, it is equipped with a casing pushing automatic control mechanism (B-CON mechanism) that can maintain the bit load at a constant value through "sequence control." The excellent workability and safety of the Super Top method with these features have been demonstrated through "technical review certification."
basic information
RT-200H Tubing Device Main Unit Drilling Diameter 1,000–2,000mm Casing Pulling Force 3,450kN (352tf) Instantaneous 3,940kN (402tf) Casing Pushing Force Maximum 590kN (60tf) + Self-weight 250kN (26tf) Pushing Stroke 750mm Rotational Torque 2,950/1,740/1,010kN-m (301/177/103tf-m) Instantaneous 3,130kN-m (319tf-m) Rotational Speed 0.9/1.5/2.5min Weight 34.1ton Hydraulic Power Unit Engine Output 257kW (350PS) / 1850min Weight 7.3ton Dimensions 4,800mm × 2,105mm × 2,112mm
Price range
Delivery Time
Applications/Examples of results
- Bored pile construction - Underground obstacle removal work
