Lianhuashan rock drilling tool Lianhuashan Drilling Tools

Taper drill rod

Taper drill rod is also called tapered drill rod, finished drill rod, small drill rod and pneumatic drill rod. It is driven by small pneumatic rock drill or hydraulic rock drill to carry out shallow hole drilling operation with taper drill head. Commonly used products are H22 and H25 specifications, taper drill rods are commonly used with taper, and the product length is 400mm-5000mm. Products used in mining, tunneling, anchoring engineering, quarrying, construction and other industries.

　　Taper drill pipe, also known as cone drill, finished drill pipe, small drill pipe, wind drill pipe, is a major drilling drilling tool used in mining, tunnel and water conservancy engineering tunneling, quarrying and rock drilling. It is generally used in hand-held, air-leg pneumatic rock drill and hydraulic bench drill. The taper drill rod is used together with the taper drill bit. The taper drill rod is composed of cone (slightly pointed), rod body, brazing shoulder (collar plate) and impact end.

production process of taper drill rod:

Production process of ordinary finished steel brazing rod: incoming inspection of hollow steel-material screening-straightening-water needle hole processing-impact end processing-pier squeeze collar plate-collar plate detection-brazing rod slight processing-drill rod heat treatment-impact end heat treatment-shot blasting-straightening-detection-painting anticorrosion-packaging-warehousing

Production process of integral carburizing finished brazing rod: hollow steel incoming inspection-material screening-straightening-water needle hole processing-impact end processing-pier squeeze collar plate-collar plate detection-brazing rod integral carburizing quenching tempering-heat treatment detection-shot blasting-straightening-overall detection-painting anticorrosion-packaging-warehousing

Application fields of cone drill pipe: mining rock drilling, tunnel engineering, anchoring operation, quarrying rock drilling, etc.

commonly used specifications of taper drill pipe:

Taper drill rod diameter size: H19.H22.H25

Tail shank size: 108mm,159mm

Drill slightly taper: 4 degrees, 7 degrees, 11 degrees, 12 degrees

Taper drill pipe length: 400mm,800mm,1220mm,1525mm,1830mm,2400mm,5000mm

 

LHS Product Model

Material specifications Hexmm

Length of tail shank L1mm

Effective length Lmm

Slight angle of cone

LG722-1400

Hex22

108

1400

7°

LG722-1200

Hex22

108

1200

7°

LG722-1000

Hex22

108

1000

7°

LG1122-2400

Hex22

108

2400

11°

LG1122-1830

Hex22

108

1830

11°

LG1122-1525

Hex22

108

1525

11°

LG1122-1220

Hex22

108

1220

11°

LG1222-4000

Hex22

108

4000

12°

LG1222-3400

Hex22

108

3400

12°

LG1222-2400

Hex22

108

2400

12°

LG1222-1800

Hex22

108

1800

12°

LG622-3400

Hex22

108

3400

6°

LG622-2400

Hex22

108

2400

6°

LG622-1400

Hex22

108

1400

6°

LG725-4500

Hex25

108

4500

7°

LG725-3400

Hex25

108

3400

7°

LG725-2400

Hex25

108

2400

7°

LG725-1830

Hex25

108

1830

7°

LG725-1500

Hex25

108

1500

7°

LG725-1200

Hex25

108

1200

7°

 

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