High Quality DTH Hole Opener Bit (Diamond/ Tungsten Carbide)

Product Description
We can design and manufacture according to customer's requirement of the Bit Dia\No. Air holes\carbide button shape and the face shape. High air pressure and low air pressure.
1. 10 years manufacturing experience;
2. Certificate: ISO9001:2008
3. Material: Carbide

All products are compatible with many products manufactured by Sandvik, Atlas Copco, etc, all our products are widely used in mining, tunneling, quarrying, construction, and civil engineering project.

DTH bits
1.manufacture as your requirement
2.bit diameter, face shape
3.carbide button shape
4.number of air hole
Bit face shape selection:
1. Drop Center Bit
For high penetration rates in soft to medium hard and fissured rock formations. Low to medium air pressures. Maximum hole deviation control.
2. Concave Face
 The all-round application bit face specifically for medium hard and homogenerous rock formations. Good hole deviation control and good flushing capacity.
3. Convex Face
 For  high penetration rates in soft to medium-hard with low to medium air pressures. It is the most resistance to steel wash, and may reduce the load and wear on the gauge buttons, but poor hole deviation control.
4. Double Gauge Face
This kind of face shape is suitable for fast penetration rates in medium to hard rock formations. Designed for high air pressures and good resistance to steel wash step gauge bit.
5. Flat Face Bit
 This kind of face shape is suitable for hard to very hard and abrasive rock formations in applications with high air pressures. Good penetration rates an resistance to steel wash.
Carbife button shape selection:
1. Domed/Round Button
Domed/Round Buttons are usually used as gauge buttons of DTH Bits, suitable for every abrasive and very hard formations.
2. Parabolic/Semi-Ballistic Buttons
Parabolic Buttons are usually used as gauge buttons and front buttons of DTH Bits, suitable for medium abrasive and hard formations.
3. Ballistic Button
Ballistic Buttons are usually used as front buttons of DTH Bits, suitable for medium abrasive and mesium hard formations. They can also be used as gauge buttons if the rock is soft.
4. Sharp Button
Sharp Buttons are usually used as front buttons of DTH Bits for soft formations where fast penetration rates are possible.
5. Flat Button
Flat buttons are usually used as protection buttons to reduce wear on rubbing surfaces of dth bits.
shank can be available:

1), Dia. 64mm-70mm shank Bulroc BR1
2), Dia. 70mm-95mm shank Halco MACH20, Bulroc BR2
3), Dia. 90mm-102mm shank COP32, COP34, Halco MACH303, M30, DHD3.5, Bulroc BR3
4), Dia. 105mm-152mm shank COP44, DHD340, Halco MACH44, SD4, M40, QL40, Bulroc BR4
5), Dia. 135mm-165mm shank COP54, DHD350R, COP54, Halco MACH50, SD5, M50, QL50, Bulroc BR5
6), Dia. 152mm-254mm shank COP64, DHD360, SD6, M60, QL60, Bulroc BR6
7), Dia. 203mm-330mm shank COP84, DHD380, SD8, QL80
8), Dia. 254mm-380mm shank SD10, Numa100
9), Dia. 305mm-508mm shank DHD1120, SD12, N120, N125
10), Dia. 405mm-864mm shank SD15, SD18
11), VKP80, VKP95, CIR90, CIR100, CIR110, CIR150, CIR200...

Button Bits:

Future:
Button bit is well known for its high wear resistance on medium-hard to hard abrasive rock formations (between 200 Mpa to 260 Mpa compressive strength).Featuring spherical tungsten carbide inserts that is known to have strong configuration against carbide fracture.
 Recommended for eliminating hole deviation
Widely used drifting and tunneling
Bit face design is ideal for medium-hard to hard abrasive rock
 
Shank can be available:
R25/R32 button bits: from 41mm to 115mm
T38/R38 button bits: from 57mm to 89mm
T45 button bits: from 70mm to 105mm
T51 button bits: from 89mm to 127mm
ST58 button bits: from 89mm to 127mm
GT60 button bits: from 102mm to 152mm
EL68 button bits: from 115mm to 152mm
ST68 button bits: from 115mm to 152mm
Buttons shape: Domed,spherical, parabolic (semi-ballistic), ballistic
Face shape: flat face, drop center, uni-face;
Skirt type: normal, retrac, straightrac

Type	Number of Air hole	DIa.(mm)	Weight(kg)	Gauge Button	Front Button	Matching DTH Hammer
GL65PQ	1	68-72	1.5	4×12	3×12	GL65
GL75PQ	3	75-77	2.4	5×12	3×12	GL70
GL76PQ	2	76-78	2.5	5×12	3×12	GL76
GL76-78	2	78-82	2.6	5×12	3×12
GL80PQ	3	82-84	3.0	5×12	6×12	GL80 /80X
GL90A	3	90-95	3.6	6×14	4×12
GL80XD-90	3	90-95	3.4	6×12	4×12	GL80XD
GL80-II-80	3	80-82	3.0	5×12	4×12	GL80-II
GL90B	3	90-95	3.8	6×14	4×12	GL90/90-I
GL90T1	2	90-95	3.6	6×14	1×12 3×12
GL90T2	2	90-95	3.8	6×14	4×12
GL90T3J	3	90-95	3.6	6×14	4×12
GL90T5	2	90-95	3.6	5×14	4×12
GL90-100	3	100-105	4	6×14	5×12
GL90-105	3	105-110	4.2	6×14	5×12
GL90-110	3	110-115	4.5	8×14	3×12
GL90-120	3	120-125	5	8×14	3×12
GL90-130	3	130-135	6.8	9×14	4×12
GL110-110	3	110-115	6.1	6×14	5×12	GL110
GL110-115	3	110-115	6.3	6×14	5×12
GL110-120	3	120-125	7	6×14	6×12
GL110-125	3	125-130	7.1	6×14	7×12
GL110-130	3	130-135	7.3	6×14	7×12
GL110-135	3	135-140	8	6×14	7×12
GL110-140	3	140-145	8.2	6×14	8×12
GL110-150	3	150-155	9	6×14	8×12
GL150-155	3	155-160	16.3	15×16	4×14	GL150
GL150-165	3	160-165	17.3	15×16	5×14
GL150-185	3	180-185	19.6	15×16	6×14
GL150-200	3	200-205	23	9×16	12×14
GL170-175	3	175-180	22.8	15×16	8×14	GL170
GL170-185	3	185-190	23.24	15×16	8×14
GL170-195	3	195-198	24	15×16	10×14
GL170-200	3	200-203	25.8	15×16	9×14
GL170-210	3	210-213	26.5	12×16	6×14 6×16
GL170-220	3	220-223	28.5	15×16	11×14
GL170-230	3	230-233	32	15×16	12×14
GL170-240	3	240-243	36	21×16	6×14
GL170-250	3	250-253	45	15×16	4×14