China Two Cutter Wings Tungsten Carbide Coal Mining Drill Bit

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
M14x1.5
27
54
17
M12x1.75
28
54
20
M12x1.75
29
52
18
M14x1.5
30
50
18
M14x1.5
32
52
22
M14x1.5
32
56
22
M12x1.75
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