MINING DRILL PIPE
Roschen manufactures a range of deep hole mining drill pipe, we stand buy the highest standard when it comes to drill pipe. Our certified thread gages ranging from 6 3/4 to 10 1/8 male and female along with our CNC facilities and high quality steel makes us a leader in drill pipe.
Drill pipe is a portion of the overall drill string which connects the rig surface equipment with the bottom hole assembly and the bit both to pump drilling fluid to the bit and to be able to raise, lower and rotate the bottom hole assembly and the bit. It is a thick walled, hollow, steel piping used for both conventional as well as horizontal drilling.
Description of Mining drill pipe
| NOMINAL SIZE | SHOULDER TO SHOULDER LENGTH | SMALL BORE DIAM | DIAM. OF BOREBACK | LENGTH OF BOREBACK | SHOULDER TO FIRST SPANNER FLAT | WIDTH OF SPANNER FLAT | SHOULDER TO END OF SPANNER FLATS | DIMENSION ACROSS SPANNER FLAT | CONNECTIONS | WEIGHT | |||||||||
| A | B | C | D | E | F | G | H | ||||||||||||
| in | mm | in | mm | in | mm | in | mm | in | mm | in | mm | in | mm | in | mm | in | mm | KG | |
| 8″ | 203.2 | 48″ | 1219.2 | 4 3/4″ | 120.7 | 6 5/32″ | 156.4 | 22″ | 58.8 | 1 1/2″ | 38.1 | 2 3/4″ | 69.9 | 8 | 209.6 | 6 | 174.6 | 6 3/4″ R.B-D122 | 170 |
| 1/4″ | 7/8″ | ||||||||||||||||||
| 10″ | 254 | 60″ | 1524 | 4 3/4″ | 120.7 | 7 7/16″ | 188.9 | 36″ | 914.4 | 1 1/2″ | 38.1 | 2 3/4″ | 69.9 | 8 | 209.6 | 8″ | 203.2 | 8 1/4″ R.B-D122 | 345 |
| 1/4″ | |||||||||||||||||||
| 11 1/4″ | 286.8 | 60″ | 1524 | 4 3/4″ | 120.7 | 7 11/16″ | 195.3 | 36″ | 914.4 | 1 1/2″ | 38.1 | 3 1/2″ | 88.9 | 10″ | 254 | 9″ | 228 | 9 1/4″ R/B-D122 | 480 |
| 12 7/8″ | 323.9 | 60″ | 1524 | 5 7/16″ | 138.1 | 9″ | 228.6 | 36″ | 914.4 | 1 9/16″ | 39.7 | 3 15/16″ | 100 | 11″ | 279 | 10 1/2″ | 266.7 | 10 1/2″ R.B-D122 | 640 |
| 12 7/8″ | 323.9 | 120″ | 3048 | 5 7/16″ | 138.1 | 9″ | 228.6 | 96″ | 2438.4 | 1 9/16″ | 39.7 | 3 15/16″ | 100 | 11″ | 279 | 10 1/2″ | 266.7 | 10 1/2″ R.B-D122 | 1270 |
Contact information:
Phiger Leo
Direct Line: 0086-137-6419 5009
WeChat: +86-137-6419 5009
WhatsApp: +86-137-6419 5009
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ROSCHEN@ INC.
ROSCHEN@ GROUP LIMITED
ROBERT ROSCHEN@ LIMITED
ROSCHEN@ HOLDINGS LIMITED
HEFEI ROSCHEN@ TOOL CO., LTD.
ROSCHEN@ GEOLOGICAL TOOL CO.,LTD.
SHANGHAI ROSCHEN@ INTERNATIONAL CO., LTD.
ROSCHEN@ GEOLOGICAL INSTRUMENTS CO., LTD.
EMAIL: roschen@roschen.com ; roschen@roschen.net
Website: http://www.roschendrill.com
http://www.roschenmining.com
http://www.roschendrilling.com
http://www.explorationcoredrilling.com
http://www.roschen.net
http://www.roschen.cn
http://www.roschen.com
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