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Definition, application and common specification parameter table of anchor drill pipe
Release time:
2019-12-04
Author:
Source:
The body of the anchor drill pipe is made of thick-walled seamless high-pressure alloy steel pipe, and the spiral steel is manufactured by single-lead or double-lead prestressed winding welding process.
Anchor drill pipeThe thread form is taper thread, the production process is spot welding reinforcement, and the anchor drill pipe link form is male and female connection. The main purpose is roadway support drilling. Anchor drill pipe is one of the "three small" products recommend by coal mining enterprises. The use of small diameter drill pipe for drilling and mining has good blasting effect and high lump coal efficiency. When drilling the side bolt hole or anchor cable hole, the speed is fast and has high performance advantages.
Product Parameters
[classification] help anchor drill pipe is divided into: RZZ and RZA type wet (water injection type) and dry help anchor drill pipe
[diameter] Ф 26,Ф 28, Ф 30, Ф 32, Φ38, Φ40
[Length] Length:(0.50m -- 2.50m)Ф 28 or more can be used in combination.
[Material] The anchor drill pipe body is made of thick-walled seamless high-pressure alloy steel pipe, and spiral steel is manufactured by single-lead or double-lead prestressed winding welding process.
Anchor drill pipeParameter Table
| Diameter (mm) |
Length (mm) |
Joint form |
Production process |
Mode of use |
Torque N.m |
Material |
| F26-16 |
500-2500 |
Metric thread |
Winding welding of steel strip |
Single use |
80 |
40CR |
| F26-16 |
500-2500 |
Metric thread |
Winding welding of steel strip |
Single use |
80 |
40CR |
| F28-18 |
500-2500 |
Metric thread |
Winding welding of steel strip |
Single use |
90 |
40CR |
| F30-18 |
500-2500 |
Metric thread |
Winding welding of steel strip |
Single use |
90 |
40CR |
| F32-F18 |
500-2500 |
Four-way connection |
Winding welding of steel strip |
Connection usage |
90 |
40CR |
| F32-B19 |
500-2500 |
T-thread |
Winding welding of steel strip |
Connection usage |
130 |
55Simnov |
Key words:
Drill pipe, thread
