Introduction:
Drill pipes that are used in applications such as DTH/ DTHR/ DR
basically comprise of a steel tube with a pin at one end and a
box on the other. The job of the drill pipe is to transmit
rotational torque and thrust from the drill rig rotary head to down
hole drilling tools.
DTH drill tubes are used for connecting DTH hammer and DTH button
bits; they are made from seamless tubes. Tubes play a
significant role in all DTH drilling, regardless of application,
rock type, hole depth or drill rig. The key features of a high
quality DTH tube are durability, accuracy and
manageability. According to different application, different
diameters of drill tubes are needed, basically, smaller
DTH hammers need smaller DTH drill tubes, vice avers. Usually
we are offering 50mm, 60mm, 76mm, 89mm, etc. ALL DTH drill
tubes are friction welded, and usually the threads are standard API
connections,like23/8" API REG thread, 3 1/2" API REG thread or
API IF thread, etc.
According to customers request, from 1000mm to 5000mm length of
tubes are available.
Product features:
According to different application, different diameters of drill
tubes are needed, basically, smaller DTH hammers need smaller DTH
drill tubes, vice avers. Usually we are offering 50mm, 60mm, 76mm,
89mm, etc.
Size | Nominal mass Lb/ft | Calculated weight type | Wall thickness |
in. | mm | lb/ft | kg/m | in. | mm |
2 3/8 | 60.3 | 6.65 | 6.26 | 9.32 | 0.280 | 7.11 |
2 7/8 | 73.0 | 10.4 | 9.72 | 14.48 | 0.362 | 9.19 |
3 1/2 | 88.9 | 9.50 | 8.81 | 13.12 | 0.254 | 6.45 |
3 1/2 | 88.9 | 13.30 | 12.31 | 18.34 | 0.368 | 9.35 |
3 1/2 | 88.9 | 15.50 | 14.63 | 21.79 | 0.449 | 11.40 |
3 1/2 | 88.9 | 15.50 | 14.63 | 21.79 | 0.449 | 11.40 |
4 | 101.6 | 14.00 | 12.93 | 19.26 | 0.330 | 8.38 |
4 1/2 | 114.3 | 13.75 | 12.24 | 18.23 | 0.271 | 6.88 |
4 1/2 | 114.3 | 16.60 | 14.98 | 22.31 | 0.337 | 8.56 |
4 1/2 | 114.3 | 20.00 | 18.69 | 27.84 | 0.430 | 10.92 |
5 | 127.0 | 16.25 | 14.87 | 22.15 | 0.296 | 7.52 |
5 | 127.0 | 19.50 | 17.93 | 26.71 | 0.362 | 9.19 |
5 | 127.0 | 19.50 | 17.93 | 26.71 | 0.362 | 9.19 |
5 | 127.0 | 25.60 | 24.03 | 35.79 | 0.500 | 12.70 |
5 | 127.0 | 25.60 | 24.03 | 35.79 | 0.500 | 12.70 |
5 1/2 | 139.7 | 21.90 | 19.81 | 29.51 | 0.361 | 9.17 |
5 1/2 | 139.7 | 24.70 | 22.54 | 33.57 | 0.415 | 10.54 |
Advantages:
Compared with the oversea brands, our advantages are bellowing:
a. Our products can match over 95% against the original products
b. Price are competitive against the famous brands and best quality
against the small factory
About Us:
1. Our factory has been specialized in
manufacturing drilling tools and spare parts for over 10 years.
2. We have advanced technology and equipment.
3. Our technician has more than 13 year's
professional working experience.
4. Rock drilling tools are exported throughout
the world. Main market: Norway, Turkey, USA, Canada, Australia,
Brazil, Uruguay, Iran, Philippines, Thailand, India, etc.