Down-the-hole (DTH) hammers

Our DTH hammers adhere to API Q1 and ISO 9001 specifications and we have a dedicated research and development facility. They are designed for multiple drilling applications, including open-pit mining, quarry blasting, water-well, geothermal and geotechnical drilling.

Our products have no inner cylinder design, thereby reducing the internal parts. The structure is more reliable and easy to disassemble and maintain. Our bits do not have a foot valve, which eliminates problems caused by nylon tube fracture and damage because of hot expansion and cold contraction.

The piston is high-quality alloy steel. The fatigue life is improved greatly after heat treatment. The outer casing and front joint sub are strengthened by surface technology, which is more stable and reliable, greatly improving the service life.

1

4″ B Series

4″ B Series

DTH structure diagram

2

5” B Series

5” B Series

DTH structure diagram

3

6” B Series

6” B Series

DTH structure diagram

4

Various series of bits

Various series of bits

Schematic diagram