STAROCKDRILL’ DTH hammers are all simple structure, easy to assemble and disassemble, as well as reliable quality and long service life. STAROCKDRILL 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). STAROCKDRILL’ DTH hammers mainly be produced with shank type of DHD, QL, SD COP, Mission, NUMA, BR, CIR and STR 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. DTH HAMMER TOOLS including DTH Hammers, DTH Bits, DTH drill Rod, Adapter, and Back hammer

As part of STAROCKDRILL’ stratagem that to make best effort to be the cost-effective leader for the drilling industry, we have a complete line of fast penetration and rock pulverization threaded bits for the worldwide drilling industry, which are suitable for any type of drilling application including, rock drilling, water well, quarries, open pit and underground mining, construction, and blasting and so on. Top Hammer Tools including Thread Button Bit, Thread cross Bit, Shank adapter, Coupling sleeves and Extension Rod

Drilling through loose, unconsolidated material such as soil, clay, silt, sand, gravel, and boulders is the so-called overburden, which is often problematic due to the tendency of the earth to cave in behind the drill bit. The Symmetric Casing Drilling System is just to drill in rock formation where contains some such ovals and fractures, and it represents the latest technology in simultaneous overburden casing drilling systems. Overburden Casing tools including ODEX Casing Bit and Symmetric Casing Bit

RC (Reverse Circulation) Drilling is similar to air core drilling in that the cuttings are returned to the surface through an inner tube and collected for later use. The drilling mechanism is a pneumatic reciprocating piston known as a hammer driving a tungsten carbide button drill bit to drill a borehole into the stratum. In RC Drilling, compressed air is pumped into a side inlet, blown down the outer shell of a dual-wall pipe and drives the hammer and bit to crush the rock. Once the air hits the drill bit, it flushes and cools the bit, and also creates a pressure different that forces the air and cuttings up the center of the drill string and into the inner tube. Air and drilling cutting are then passed through the inner rod and sucked back up, through the top drive and into a cyclone sampler. Then, the rock and water are separated by the cyclone at the top, and the rock is deposited in a sample collection container. RC Hammer tools including RC Hammers, RC Hammer Bits, RC drill Rod and Adapters