Down-the-Hole Method

Since the selection of bits can be made based on the geology, suitable construction can be carried out according to the site conditions.

This technology is a drilling method that excels in mobility, allowing for a speedy setup from equipment assembly to construction. Using "down-the-hole" air drive to excavate rock formations, the impact force is transmitted directly to the bit without passing through the rod, resulting in high work efficiency. Additionally, the exhaust air blows away the excavated debris, keeping the drilling surface constantly clean, enabling efficient construction. The bit can be replaced according to the geological conditions. 【Features】 ■ Can be used in narrow sites or areas inaccessible to large machinery ■ Excavated debris is discharged by air lift ■ Enables efficient and economical construction ■ The drilling surface is constantly cleaned *For more details, please refer to the PDF materials or feel free to contact us.

Special Construction Method