Middle Pressure DTH Hammers

Superdrill DTH hammers are all simple structure, easy to assemble and disassemble, as well as reliable quality and long service life. Superdrill has various hammer models suitable to drill holes from 64mm to 1000 mm (2-1/2” ~ 39-3/8”) in diameter; and come with three kind: low pressure (5 ~ 7 bars), middle pressure (7 ~ 15 bar) and high pressure ­­(7~ 30 bars).

Superdrill  DTH hammers mainly be produced with shank type of DHD, QL, SF, COP, Mission, SD, BR, CIR and ACD series, Diameter ranging from 2” to 8” for mining and quarrying, and 6” to 32” for      water-well drilling, oil-well drilling and foundation and so on.

Middle Pressure DTH Hammers:

Hammer Size	Shank Design	Working Pressure		Drilling Range
		Bar (0.1 MPa)	PSI (lb/in2)	mm	inch
2”	BR1	7~15	100~220	64~76	2 1/2 ~ 3
2.5”	BR2	7~15	100~220	70~90	2 3/4 ~ 3 1/2
3.5”	BR3	7~15	100~220	90~115	3 1/2 ~ 4 1/2