General Introduction:
Acedrills is in the position to offer a comprehensive range of DTH drill bits with all diameters of the current prevailing manufacturers’ hammer shank designs to match various drilling applications. All our DTH drill bits are also CAD designed, CNC manufactured for perfect bits body, and multiple heat-treated to enhance hardness, surface-compressed for fatigue resistance, all thus to extend the product life for maximum wear and performance in the toughest of drilling conditions. Moreover, all these bits are also made from high quality alloy steels and fitted with premium quality tungsten carbide tips for superior penetration rate.
Acedrills commonly has three basic bits head designs: Flat Face, Convex and Concave. These are designed for specific applications for all rock types, hardness’s and conditions:
|
Face Type
|
Suitable Pressure
|
Applications
|
Typical Formations
|
Hole Straightness
|
Penetration Rate
|
|
Flat Front
|
High
|
Very hard and abrasive
|
Granite, hard limestone, basalt
|
Fair
|
Good
|
|
Concave
|
Low to medium
|
Medium to hard, less abrasive, fractured
|
Granite, hard limestone, basalt
|
Very good
|
Fair
|
|
Convex
|
Low to medium
|
Soft to medium hard, non-abrasive
|
Limestone, hard limestone, shale
|
Average
|
Excellent
|
Selecting The Right Bits
Bit service life and penetration rate are the most important criteria in selecting the right bit for a particular application. In most cases, the focus is on productivity, so the bits of fast cuttings removal features are preferable, to ensure the buttons are cutting clean, with the minimum of re-crushing.
DTH bit is the tool cutting rocks, and subject to severe stress from the striking piston as well as from the abrasive cuttings passing the bit at high velocity. When selecting the right bit for optimum performance you have to balance penetration against bit life. On occasion you can successfully sacrifice bit life for penetration, remember the rule of thumb that states that a 10% increase in penetration covers at least a 20% loss in bit life.
Specification Overview:
Medium and High Pressure Hammer Bits:
|
Hammer Size
|
Hammer Shank Style
|
Bit Diameter
|
Face Design
|
Insert Shapes
|
|
mm
|
inch
|
|
2
|
BR1
|
64~76
|
2 1/2 ~ 3
|
FF, CV
|
S, P, B, C
|
|
2.5
|
BR2, Minroc 2, AHD25
|
76~90
|
3 ~ 3 1/2
|
FF, CV
|
S, P, B, C
|
|
3.5
|
BR 3, Minroc 3, Mach33/303, DHD3.5, TD35, XL3, Mission 30, COP32, Secoroc3, COP34
|
85~105
|
3 3/8 ~ 4 1/8
|
FF, CV
|
S, P, B, C
|
|
4
|
DHD340A/DHD4, COP44, Secoroc4/44, Numa4, Mincon 4, SD4(A34-15), QL40, Mission 40, COP42, Mach 40/44, Dominator 400, XL4
|
105~130
|
4 1/8 ~ 5
|
FF, CV, CC
|
S, P, B, C
|
|
5
|
DHD350R, COP54, Secoroc5/54, Mach 50, SD5(A43-15), BR5V, COP54 Gold, QL50, TD50/55, HP50/55, Patriot 50, Mission 50/55, COP52, XL5/5.5
|
137~165
|
5 3/8 ~ 6 1/2
|
FF, CV, CC
|
S, P, B, C
|
|
6
|
DHD360, DHD6/6.5, SF6, COP64, Secoroc 6, Challenger/Patriot 6, XL61/PD61, Mach 60, COP64 Gold, QL60, SD6(A53-15)/PD6, ADEC-6M, TD60/65/70, HP60/HP65, Mission 60/60W/65, COP62, XL6
|
152~203
|
6 ~ 8
|
FF, CV, CC
|
S, P, B, C
|
|
8
|
DHD380, COP84, Secoroc 84, Mach 80, Challenger/Patriot 80, SD8(63-15), XL8, QL80, Mission 80/85
|
203~305
|
8 ~ 12
|
FF, CV, CC
|
S, P, B
|
|
10
|
SD10, Numa100
|
241~356
|
9 1/2 ~ 14
|
FF, CC
|
S
|
|
12
|
DHD112, XL12, Mach132, Mach120, SD12(A100-15), NUMA120, NUMA125
|
305~419
|
12 ~ 16 1/2
|
FF, CC
|
S
|
|
14
|
ACD145
|
381~470
|
15 ~ 18 1/2
|
FF, CC
|
S
|
|
18
|
ACD185
|
445~660
|
17 1/2 ~ 26
|
FF, CC
|
S
|
|
20
|
ACD205
|
495~711
|
19 1/2 ~ 28
|
FF, CC
|
S
|
|
24
|
ACD245
|
711~990
|
28 ~ 39
|
FF, CC
|
S
|
|
32
|
ACD325
|
720~1118
|
28 1/2 ~ 44
|
FF, CC
|
S
|
Face Design: FF=Flat Front, CV=Convex, CC=Concave;
Button Configurations: S=Hemi-spherical (Round), P=Parabolic, B= Ballistic, C=Sharp Conical.
Low Pressure DTH Bits Hammer Bits:
|
Shank Style
|
Bit Size
|
Face Design
|
Insert Shapes
|
|
mm
|
inch
|
|
J60C, CIR65
|
65~70
|
2 1/2 ~ 2 3/4
|
FF, CV, CC
|
S, P
|
|
J70C, CIR70
|
75~80
|
3 ~ 3 1/4
|
FF, CV, CC
|
S, P
|
|
J80B, CIR80/80X
|
83~90
|
3 3/8 ~ 3 1/2
|
FF, CV, CC
|
S, P
|
|
CIR90
|
90~130
|
3 1/2 ~ 5
|
FF, CV, CC
|
S, P
|
|
J100B, CIR110/110W
|
110~123
|
4 3/8 ~ 4 7/8
|
FF, CV, CC
|
S, P
|
|
J150B, CIR150/150A
|
155~165
|
6 1/8 ~ 6 1/2
|
FF, CV, CC
|
S, P
|
|
J170B, CIR170/170A
|
170~185
|
6 3/4 ~ 7 1/4
|
FF, CV, CC
|
S, P
|
|
J200B, CIR200W
|
200~220
|
7 7/8 ~ 8 5/8
|
FF, CV, CC
|
S, P
|
Face Design: FF=Flat Front, CV=Convex, CC=Concave;
Button Configurations: S=Hemi-spherical (Round), P=Parabolic.
For brochure and more product information, please click here to verify your company information and tell us the detail.
How to order?
Shank Type + Diameter + Face Design + Button Configuration