Rock Drilling Tools Ql40 Ql45 Ql50 Ql55 Ql60 Ql65 Ql80 185mm 6 Inches DTH Hammer And Bit

More QL DTH hammer specification STR SD hammer size Net weight Out diameter DTH hammer length with out bit Hole size STR QL40 39 kgs 99mm 953mm 105-130mm STR QL50 74 kgs 126mm 1008mm 133-152mm STR QL60 110 kgs 144mm 1081mm 152-254mm STR QL80 182 kgs 182mm 1210mm 194-305mm DTH hammer bit is the tool cutting rock.STAROCKDRILL DTH bits are made of superior quality alloy steel which is made by Timken in U.S. Besides, all our DTH bits are using the brand "Element Six" T.C carbide which provides (the T.C buttons) for Boart Longyear.In addition art manufacturing technology makes our DTH bits with higher and more reliable quality. GSE QL hammer size GSE QL hammer working pressure The impact frequency when it is working on 18Bar STR QL40  8 bar ~ 25 Bar 31Hz STR QL50  8 bar ~ 30 Bar  30Hz STR QL60  8 bar ~ 30 Bar  28Hz STR QL80 8 bar ~ 35 Bar 23Hz High Air pressure up to 35 bar DTH Hammer Advantages:. 1.Valveless air distribution, more reliable; 2.Piston with simple but compact design, long life; 3.More efficient energy transfer, faster drilling speed, lower air consumption and lower oil consumption. 4.Fewer internal parts, simple structure, longer life, less failure and easier to maintain, with the all heat treated parts; 5.Easy to disassemble, thanks for the top sub, drive chuck and external cylinder all are connected by multi-step thread. DTH bits DTH bit is the tool cutting rock. STAROCKDRILL DTH bits are made of superior quality alloy steel which is made by Timken in U.S. Besides, all our DTH bits are using the brand "Element Six" T.C carbide which provides (the T.C buttons) for Boart Longyear. In addition art manufacturing technology makes our DTH bits with higher and more reliable quality. Shank Style Diameter in mm Flat face Convex face Concave face Approx.weight Part number QL 40 105 √ √ √ 9.9 kgs QL 40-105 110 √ √ √ 10.1 kgs QL 40-110 115 √ √ √ 10.2 kgs QL 40-115 120 √ √ √ 11.5 kgs QL 40-120 127 √ √ √ 11.2 kgs QL 40-127 QL 50 135 √ √ √ 16.2 kgs QL 50-135 140 √ √ √ 16.6 kgs QL 50-140 146 √ √ √ 17.1 kgs QL 50-146 152 √ √ √ 17.8 kgs QL 50-152 165 √ √ √ 18 kgs QL 50-165 QL 60 152 √ √ √ 22.3 kgs QL 60-152 165 √ √ √ 24.4 kgs QL 60-165 171 √ √ √ 24.8 kgs QL 60-171 190 √ √ √ 29 kgs QL 60-190 203 √ √ √ 33 kgs QL 60-203 QL 80 203 √ √ 48.5 kgs QL 80-203 216 √ √ 50.1 kgs QL 80-216 241 √ √ 60.1 kgs QL 80-241 254 √ √ 62.5kgs QL 80-254 292 √ √ 85 kgs QL 80-292 305 √ √ 83.9 kgs QL 80-305 Note:1.All diameters as above are only our standard diameters,but other diameters are also available upon request.2.The unit weight for each size is for reference only. 3.Face design,buttons shape,buttons configuration and flushing holes number must be confirmed when the order is confirmed. 4.Please be cautions when order some bigger diameter of button bits since some bigger diameters are oversized. 5.Other shanks bits are also available as per request.