Jining Hengwang Mining Machine Co., Ltd.

China Manufacturer with main products: Mine Equipments, Mining Motor, Mining Pump, Mine Drill Equipments, Mine Electric Equipments

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Down-the-hole drill bit

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Export Markets: North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe

Quick Details

  • Brand Name: HW
  • Model Number: HW8022


Currently there are four kinds of end face design forms: End face convex typeEnd face planar; End face concave type; End face deep concave center type. Carbide multi-select ball tooth. Spring tooth, or communal cloth tooth arranged by elastic claw and ball tooth.

1. End face convex typeTwo kinds of formsSingle and double convex face.

Latter is mainly used for large diameter DTH drillIn drilling hard and hard abrasive rock maintain a high rate of drilling

2. End face planarThis shape of the drill is more strong and durable, suitable for drilling hard and very hard rockAlso apply to drill hole straightness, not high request in hard rock and soft rock.

3. End face concave type: This shape of drill bit end has a conical hollow parts. Drilling bit in the process of drilling form a mild nucleation effect to keep bit's performanceDrill hole has good straightness. Good bit row powder effect,fast drilling speed

4.End face deep concave center type:  This bit is in the shape of the same type ball tooth drill bit evolved. Nucleation effect in the process of drillingDrill hole has good straightness. Good bit row powder effect,fast drilling speedOnly applicable to drill in soft rock and hard rock.

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