Sansung produces a variety of tungsten carbide coal drill bits, mainly: water exploration drill bit, coal mining drill bit, soft rock drill bit, composed drill bit and reaming drill bit. Drill bits are manufactured by casting, precision forging and medium carbon alloy steel machining, and can adapt to different drilling conditions. The bits are widely used in coal, gypsum mine and other soft rock drilling and reaming.
Two Wings Tungsten Carbide Coal Bit
Coal bits are mainly used in coal and mine drilling, have dry-type& wet-type.
1. Mainly used in coal and mine drilling
2.Dry and Wet Type available
3.Dimension:25, 27, 28, 29, 30, 32, 36, 42 mm.
4.Normal Thread Model: M16*2, M14*1.5, M12*1.75, M14*1.5, M12*1.75
5.We can do different measures as per customers demand.
Specifications of twin wing coal bits
Colliery Drill Tools | Main Standard(mm) |
D | H | L | M |
Thread joint | 27 | 44 | 17 | M14×1.5 |
27 | 54 | 17 | M12×1.75 |
28 | 54 | 20 | M12×1.75 |
29 | 52 | 18 | M14×1.5 |
30 | 50 | 18 | M14×1.5 |
32 | 52 | 22 | M14×1.5 |
32 | 56 | 22 | M12×1.75 |
Specifications for more model coal mining bits
No | Specification and Size (mm) | Cutters | Structures |
Diameter | Connection Size |
1 | 27 | M12x1.75 | M14x1.5 | 2 | integral |
2 | 28 | M12x1.75 | F12x12 | 2 | integral |
3 | 30 | M12x1.75 | F12x12 | 2 | integral |
4 | 32 | M14x1.5 | F12x12 | 2 | integral |
5 | 34 | M14x1.5 | F12x12 | 2 | integral |
6 | 36 | M14x1.5 | F12x12 | 2 | integral |
7 | 38 | T24x5 | F14x14 | 2-3 | integral |
8 | 42 | T24x5 | F13-14 | 2-3 | integral |
9 | 45 | T24x5 | F13-18 | 2-3 | integral |
10 | 55 | T24x5 | F13-18 | 4 | two-stage |
11 | 65 | T24x5 | F13-18 | 4-5 | two-stage |
12 | 75 | T33x4.23 | F13-18 | 4-5 | two-stage |
13 | 76 | T33x4.23 | F18-24 | 4-5 | two-stage |
14 | 82 | T42x5.08 | F18-24 | 4-5 | two-stage |
15 | 85 | T42x5.08 | F18-24 | 4-5 | two-stage |
16 | 89 | T42x5.08 | F24-32 | 5-7 | three-stage |
17 | 95 | T55x5.08 | F24-32 | 5-7 | three-stage |
18 | 110 | T55x5.08 | B35-45 | 5-7 | three-stage |
19 | 125 | T55x5.08 | B35-45 | 5-12 | four-stage |
20 | 135 | T55x5.08 | B35-45 | 5-12 | four-stage |
