DCDMA Seamless Steel Tube For Diamond Core Drilling
- BEILAI
- CHINA
Produced by cold drawn method.
Excellent dimensional tolerance.
Concentricity and straightness.
DCDMA stanndard conventional drill rods also known as w series drill rods and both rod and coupling are manufactured from cold drawn seamless steel tubing of controlled straightness.Beilai produce BS4019 Seamless Steel Tube For Diamond Core Drilling.
Seamless steel tubes for diamond core drilling
Drilling Nominal Series | Drilling Rod | Outer Tube | Inner Tube | Casing Tube | Note | ||||||||
OD(mm) | WT(mm) | ID(mm) | OD(mm) | WT(mm) | ID(mm) | OD(mm) | WT(mm) | ID(mm) | OD(mm) | WT(mm) | ID(mm) | ||
28 | 25 | 4 | 17 | 27 | 2.25 | 22.5 | 20.5 | 1.25 | 18 | / | / | / | Common Coring |
36 | 33 | 5 | 23 | 35 | 3 | 29 | 26.5 | 1.75 | 23 | 45 | 3.5 | 38 | |
46 | 43 | 6 | 31 | 45 | 3.5 | 38 | 35 | 2 | 31 | 58 | 4.5 | 49 | |
59 | 54 | 6 | 42 | 58 | 3.5 | 51 | 47.5 | 2 | 43.5 | 73 | 5 | 63 | |
75 | 67 | 6 | 55 | 73 | 3.75 | 65.5 | 62 | 2.75 | 56.5 | 89 | 4(5.25) | 81(78.5) | |
91 | 67 | 6 | 55 | 89 | 4 | 81 | 77 | 3.5 | 70 | 108 | 4.25(5.25) | 99.5(97.5) | |
46 | 43.5 | 4.75 | 34 | 45 | 4.5 | 36 | 31 | 2 | 27 | 58 | 4.5 | 49 | Wire line coring |
59 | 55.5 | 4.75 | 46 | 58 | 4.5 | 49 | 43 | 2.5 | 38 | 73 | 5 | 63 | |
75 | 71 | 5 | 61 | 73 | 5 | 63 | 56 | 2.5 | 51 | 89 | 4(5.25) | 81(78.5) | |
