3"High air pressure DTH Bits - 8"High air pressure DTH Bits - The Liaocheng XinTianXia Geotechnical Engineering Co., Ltd.

Product

Product

Current Location： Home » Down The Hole Drilling » 8"High air pressure DTH Bits

3"High air pressure DTH Bits

Product Model：

Product Size：

Packaging Size：

Packaging Method：

Product Features

There are four main types of end face designs currently used for high-pressure down the hole drill bits: convex end face type, flat end face type, concave end face type, and deep concave center end face type. Hard alloys often use tooth arrangement methods such as ball teeth, elastic teeth, or a combination of ball teeth and elastic teeth.

1. End face convex type: This type of drill bit comes in two forms, single convex and double convex end faces, with the latter mainly used for larger diameter down the hole drill bits. The end face convex down the hole drill bit can maintain a high rock drilling rate when drilling hard and abrasive rocks, but the straightness of the borehole is poor and not suitable for rock drilling projects with high requirements for borehole straightness.

2. End face flat type: This type of drill bit is relatively sturdy and durable, suitable for drilling hard and extremely hard rocks, as well as medium hard and soft rocks with low requirements for borehole straightness.

3. End face flat type: This type of drill bit has a conical depression on the end face, which forms a mild nucleation effect during rock drilling to maintain the centering performance of the drill bit. The drilled borehole has good straightness, and this type of drill bit has good powder discharge effect and fast drilling speed. It is currently the most commonly used down the hole drill bit in the market.

4. End face deep concave center type: This type of drill bit is evolved from the same type of ball tooth drill bit, and the center of the end face of the drill bit has a deep concave center part. Used for nucleation during rock drilling, ensuring the straightness of the borehole when drilling deep holes, only suitable for drilling soft and medium hard rocks.

高风压潜孔钻头 High air pressure DTH Bits

8"	钻头直径 Diameter		合金数量×直径 No×button diameter		气孔 Air hoies	重量 Weight (kg)	P/N
8"	毫米 mm	英寸 inch	芯齿 Front	边齿 Gauge	气孔 Air hoies	重量 Weight (kg)	P/N
	圆齿/凹面型 Spherical button/Goncave face
	200 203 216 219 222 226 229 241 251 254 270 305	7 7/8 8 8 1/2 8 5/8 8 3/4 8 7/8 9 9 1/2 9 7/8 10 10 5/8 12	6×18，6×18 6×18，6×18 6×18，8×18 6×18，9×18 3×18，5×18 3×18，5×18 3×18，5×18 3×18，6×18 3×18，7×18 3×18，7×18 3×18，8×18 6×18，8×18	9×18 9×18 9×18 9×18 12×18,6×18 12×18,6×18 12×18,6×18 12×18,6×18 12×18,6×18 12×18,6×18 12×18,6×18 12×18,9×18	3 3 3 3 3 3 3 3 3 3 3 3	49.2 49.7 52.0 52.7 53.7 54.1 56.0 60.1 62.8 63.3 71.1 84.3	613-200D380-1218/918-22-41 613-203D380-1218/918-22-41 613-216D380-1418/918-22-41 613-219D380-1518/918-22-41 613-222D380-818/1818-22-41 613-226D380-818/1818-22-41 613-229D390-818/1818-22-41 613-241D390-918/1818-22-41 613-251D380-1018/1818-22-41 613-254D380-1018/1818-22-41 613-270D380-1118/1818-22-41 613-305D380-1418/2118-22-41
	抛物线齿/凸面型 Parabolic button/Convex face
	203 216 222	8 8 1/2 8 3/4	6×18，7×18 6×18，8×18 6×18，8×18	9×18 9×18 12×18	3 3 3	49.7 52.0 53.7	614-203D380-1318/918-22-51 614-216D380-1418/918-22-51 614-222D380-1418/1218-22-51
	圆齿/平面型 Spherical button/Flat face
	203 216 222 229	8 8 1/2 8 3/4 9	9×18 12×18 13×18 14×18	9×18 9×18 12×18 12×18	3 3 3 3	49.7 52.0 53.7 56.0	611-203D380-918/918-22-41 611-216D380-1218/918-22-41 611-222D380-1318/1218-22-41 611-229D380-1418/1218-22-41
	圆齿/凹面型 Spherical button/Goncave face
	200 203 216 219 222 226 229 241 251 254 270 305	7 7/8 8 8 1/2 8 5/8 8 3/4 8 7/8 9 9 1/2 9 7/8 10 10 5/8 12	6×18，6×18 6×18，6×18 6×18，8×18 6×18，9×18 3×18，5×18 3×18，5×18 3×18，5×18 3×18，6×18 3×18，7×18 3×18，7×18 3×18，8×18 6×18，8×18	9×18 9×18 9×18 9×18 12×18,6×18 12×18,6×18 12×18,6×18 12×18,6×18 12×18,6×18 12×18,6×18 12×18,6×18 12×18,9×18	3 3 3 3 3 3 3 3 3 3 3 3	41.0 42.0 53.6 54.0 56.0 57.0 58.0 63.0 64.0 67.0 72.0 94.0	613-200SD8-1218/918-22-41 613-203SD8-1218/918-22-41 613-216SD8-1418/918-22-41 613-219SD8-1518/918-22-41 613-222SD8-818/1818-22-41 613-226SD8-818/1818-22-41 613-229SD8-818/1818-22-41 613-241SD8-918/1818-22-41 613-251SD8-1018/1818-22-41 613-254SD8-1018/1818-22-41 613-270SD8-1118/1818-22-41 613-305SD8-1418/2118-22-41
	抛物线齿/凸面型 Parabolic button/Convex face
	203 216 222	8 8 1/2 8 3/4	6×18，7×18 6×18，8×18 6×18，8×18	9×18 9×18 12×18	3 3 3	42.0 53.6 54.0	614-203SD8-1318/918-22-51 614-216SD8-1418/918-22-51 614-222SD8-1418/1218-22-51
	圆齿/平面型 Spherical button/Flat face
	203 216 222 229	8 8 1/2 8 3/4 9	9×18 12×18 13×18 14×18	9×18 9×18 12×18 12×18	3 3 3 3	42.0 53.6 54.0 58.0	611-203SD8-918/918-22-41 611-216SD8-1218/918-22-41 611-222SD8-1318/1218-22-41 611-229SD8-1418/1218-22-41

8"	钻头直径 Diameter		合金数量×直径 No×button diameter		气孔 Air hoies	重量 Weight (kg)	P/N
8"	毫米 mm	英寸 inch	芯齿 Front	边齿 Gauge	气孔 Air hoies	重量 Weight (kg)	P/N
	圆齿/凹面型 Spherical button/Goncave face
	200 203 216 219 222 226 229 241 251 254 270 305	7 7/8 8 8 1/2 8 5/8 8 3/4 8 7/8 9 9 1/2 9 7/8 10 10 5/8 12	6×18，6×18 6×18，6×18 6×18，8×18 6×18，9×18 3×18，5×18 3×18，5×18 3×18，5×18 3×18，6×18 3×18，7×18 3×18，7×18 3×18，8×18 6×18，8×18	9×18 9×18 9×18 9×18 12×18,6×18 12×18,6×18 12×18,6×18 12×18,6×18 12×18,6×18 12×18,6×18 12×18,6×18 12×18,9×18	3 3 3 3 3 3 3 3 3 3 3 3	49.9 50.4 52.7 53.4 54.4 54.8 55.2 60.8 63.5 64.0 71.8 85.0	613-200QL80-1218/918-22-41 613-203QL80-1218/918-22-41 613-216QL80-1418/918-22-41 613-219QL80-1518/918-22-41 613-222QL80-818/1818-22-41 613-226QL80-818/1818-22-41 613-229QL80-818/1818-22-41 613-241QL80-918/1818-22-41 613-251QL80-1018/1818-22-41 613-254QL80-1018/1818-22-41 613-270QL80-1118/1818-22-41 613-305QL80-1418/2118-22-41
	抛物线齿/凸面型 Parabolic button/Convex face
	203 216 222	8 8 1/2 8 3/4	6×18，7×18 6×18，8×18 6×18，8×18	9×18 9×18 12×18	3 3 3	51.3 53.6 55.2	614-203QL80-1318/918-22-51 614-216QL80-1418/918-22-51 614-222QL80-1418/1218-22-51
	圆齿/平面型 Spherical button/Flat face
	203 216 222 229	8 8 1/2 8 3/4 9	9×18 12×18 13×18 14×18	9×18 9×18 12×18 12×18	3 3 3 3	51.0 53.7 54.4 56.8	611-203QL80-918/918-22-41 611-216QL80-1218/918-22-41 611-222QL80-1318/1218-22-41 611-229QL80-1418/1218-22-41
	圆齿/凹面型 Spherical button/Goncave face
	200 203 216 219 222 226 229 241 251 254 270 305	7 7/8 8 8 1/2 8 5/8 8 3/4 8 7/8 9 9 1/2 9 7/8 10 10 5/8 12	6×18，6×18 6×18，6×18 6×18，8×18 6×18，9×18 3×18，5×18 3×18，5×18 3×18，5×18 3×18，6×18 3×18，7×18 3×18，7×18 3×18，8×18 6×18，8×18	9×18 9×18 9×18 9×18 12×18,6×18 12×18,6×18 12×18,6×18 12×18,6×18 12×18,6×18 12×18,6×18 12×18,6×18 12×18,9×18	3 3 3 3 3 3 3 3 3 3 3 3	40.8 41.0 41.8 42.0 49.0 51.0 53.0 56.0 56.8 57.0 61.0 77.0	613-200MB0-1218/918-22-41 613-203MB0-1218/918-22-41 613-216MB0-1418/918-22-41 613-219MB0-1518/918-22-41 613-222MB0-818/1818-22-41 613-226MB0-818/1818-22-41 613-229MB0-818/1818-22-41 613-241MB0-918/1818-22-41 613-251MB0-1018/1818-22-41 613-254MB0-1018/1818-22-41 613-270MB0-1118/1818-22-41 613-305MB0-1418/2118-22-41
	抛物线齿/凸面型 Parabolic button/Convex face
	203 216 222	8 8 1/2 8 3/4	6×18，7×18 6×18，8×18 6×18，8×18	9×18 9×18 12×18	3 3 3	41.0 42.0 49.0	614-203MB0-1318/918-22-51 614-216MB0-1418/918-22-51 614-222MB0-1418/1218-22-51
	圆齿/平面型 Spherical button/Flat face
	203 216 222 229	8 8 1/2 8 3/4 9	9×18 12×18 13×18 14×18	9×18 9×18 12×18 12×18	3 3 3 3	41.0 42.0 49.0 53.0	611-203MB0-918/918-22-41 611-216MB0-1218/918-22-41 611-222MB0-1318/1218-22-41 611-229MB0-1418/1218-22-41

Related Information

Related Products

3"High air pressure DTH Bits

Previous Level