CJSC Dominanta Mining
т/ф.: +7 (391) 219-11-03,
info@d-mining.ru
 

Drilling bars SBU-100 are for shot-hole drilling by SBU-100 type drilling machine tools. They use downhole hammer.

The rods consists of a steel hot-rolled pipe 89x5 mm, GOST 8732-78, and welded ends with threads of rectangular cutout, 72х10 mm. Welding is argon-arc with quality controlling by method of defectoscopy.

The rods are used when there is a percussion-rotary drilling of shot- hole pipes using downhole hammers. Such method of drilling is most effective in hard grounds, because they are fragile and can be easily broken when there is dynamical load.

CJSC Dominanta Mining
т/ф.: +7 (391) 219-11-03,
info@d-mining.ru
Яндекс.Метрика