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25-
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Coal drill pipe
Coal drill pipe for mining consumables tools accessories, a spiral seam drilling rig used in high twist drill pipe, generally USES the high quality carbon steel guitar, suitable for electric drill is used when drilling, coal mining is the ideal indispensable tool. Have solid coal drill pipe (dry coal drill pipe) and the hollow (wet coal drill pipe) two categories, there were 26 Φ, Φ 28 and 30, Φ Φ 38, Φ 40 specifications such as diameter, according to the demand of drilling in 0.5 6 m length. Coal drill pipe and all kinds of pneumatic outburst prevention drill, using spiral drilling technology, drilling speed, bore hole forming good, high drilling efficiency, etc. Compared with traditional drilling greatly increase fast. For drilling in coal heading to affect the progress of the lowest level, widely used in coal mine, mine drilling and mining, etc. Features:
1, light weight (45% lighter than the old pipe).
2, fast penetration, little dust, the vertical hole drilling cuttings, clear into the hole.
3, easy card bean connection quickly, save strapping material.
4, with the drill rod body tail separation can be used straight, prolong the service life.
5, good water wet homework pass.
Type Drill pipe diameter Drill point drilling diameter Drill hole depth boundary dimension Vertical spindle speed
Ф28 28 60（°） 28（mm） 1000（m） 28X 1.5（mm） 200
Ф38 38 60（°） 38（mm） 1000（m） 38X 1.5（mm） 200
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