Dual-Wall RC Drill Rods RC Drill Pipes RC Hammers RC Drill Bits
Dual-Wall RC Drill Rods RC Drill Pipes RC Hammers RC Drill Bits
Dual-Wall RC Drill Rods RC Drill Pipes RC Hammers RC Drill Bits
Product specifications:
| Dual-Wall RC Drill Rods RC Drill Pipes Specifications | |||
| Diameter(mm) | Diameter(Inch) | Connection Thread | Length |
| 76mm | 3" | API 2 3/8"Reg | 1m-6m |
| 89mm | 3 1/2" | API 2 3/8"Reg | 1m-6m |
| 102mm | 4" | API 3 1/2" Reg | 1m-6m |
| 114mm | 4 1/2" | API 3 1/2" Reg | 1m-6m |
| 127mm | 5" | API 3 1/2" Reg | 1m~10m |
| 140mm | 5 1/2" | API 3 1/2" Reg | 1m~10m |
| 152mm | 6" | API 4 1/2" Reg | 1m~10m |
RC Hammers
Dual-Wall Drill Rods (RC Drill Pipes)
RC Drill Bits
RC drill rod (also as dual-wall drill pipes) comprises an outer and inner pipe with a sealing system (usually O Rings) to keep the drill string pressurized.
Air is blown between the walls of the inner and outer pipes down to the hammer while the air forces the cuttings back up through the centre of the inner pipe.
As RC drill rods are subjected to high wear in the drilling process we use only the high quality hardened alloy steel for the both rods and tool joints.
| RC Drill Pipe Specifications | ||||
| RC Drill Pipe Size | Outer tube OD | Inner tube OD | ||
| mm | mm | inch | mm | inch |
| 89-38 | 89 | 3 1/2 | 38 | 1 1/2 |
| 102-51 | 102 | 4 | 51 | 2 |
| 114-64 | 114 | 4 1/2 | 64 | 2 1/2 |
| 114-70 | 114 | 4 1/2 | 70 | 2 3/4 |
| 127-76 | 127 | 5 | 76 | 3 |
| 127-66 | 127 | 5 | 66 | 2 5/8 |
Roschen with more 60 years of experience, is one of the professional manufacturer and supplier of high performance rock drilling tools in the world, such as: DTH hammers and bits, RC hammers and bits, DTH drill rods and top hammer drilling tools. Our tools are widely used in different drilling applications including mining, quarrying, water well drilling, geotechnical industries and etc
Roschen is specialized in designing, manufacturing and developing equipments and accessories for standard models as well as the special needs of clients and provides them with the best suggestions and solutions. We practice strict and stringent quality control during manufacturing and adhered to recognized and approved quality control systems. Each of our products follows the quality requirements and procedures to ensure finished products are durable and superior up to standard.
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