China DTH Rock Drill Bit Ql Series Ql30, Ql40, Ql50, Ql60, Ql80 for 3", 4", 5", 6", 8" Down The Hole Hammers

• Certification: ISO 9001:2008
• Surface Treatment: Spray-Paint
• Manufacturing Process: Forging
• Material: Alloy Steel
• Transport Package: Ply-Wood Safety Delivery Package
• Specification: 3inch
• Trademark: Super Diamond
• Origin: China
• HS Code: 8412310090
• Production Capacity: 50, 000PCS / Year

Product Description

We are a professional producer and major manufacturer for rock drilling tools, whom are capable to design and manufacture according to customer's requirement on the Bit Dia\No., Air holes, carbide button shape and the bit face shape. High air pressure and low air pressure.

Thanks to our long year experienced technicians and engineers in the field for more than 15 years, whom make this into reality and meet the clients' demand accurately.
 

All hammer and bits 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.

Our advantage and strongpoints:
1. Customized acceptable
2. Raw material is very high quality alloy metal, we focus on quality and care clients' concern.
3. Harden treatments 
4. Full production procedures by our own factory from raw material cutting, hot forging, milling, plane, grind till pack for delivery.


Informations for a quick and accurate offer:
1. Advise us bit diameter, face shape
2. Advise us Carbide button shape
3. Advise us qty of air hole
4. Advise us the rock formations situation, we could assist and give a suggestion on the above.
5. Advise us the drilling hole diameter, we could assist and suggest a solution.


Products Standard Specifications:

QL series DTH Bits shank	Bit Dia.		Air Holes No.	Gauge Buttons	Front Buttons	Weight (Kgs)	Part No.
	mm	inch
QL30	85	3 11/32"	2	6×φ13	4×φ12	4.5	QL30-85
	90	3 1/2"	2	6×φ14	4×φ12	4.7	QL30-90
	95	3 3/4"	2	6×φ14	4×φ13	4.9	QL30-95
	100	3 7/8"	2	8×φ12	6×φ12	5.0	QL30-100
	105	4 1/8"	2	8×φ13	6×φ12	5.5	QL30-105
QL40	105	4 1/8"	2	6×φ14	5×φ13	9.0	QL40-105
	110	4 1/4"	2	7×φ13	6×φ13	9.2	QL40-110
	115	4 1/2"	2	7×φ14	6×φ13	9.5	QL40-115
	120	4 3/4"	2	8×φ14	6×φ14	10.3	QL40-120
	127	5	2	8×φ14	7×φ14	11.5	QL40-127
QL50	133	5 1/4"	2	7×φ16	6×φ14	15.5	QL50-130
	140	5 1/2"	2	7×φ18	7×φ14	16.0	QL50-140
	146	5 3/4"	2	8×φ18	7×φ14	16.5	QL50-146
	152	6"	2	8×φ18	8×φ14	17.0	QL50-152
	165	6 1/2"	2	8×φ18	8×φ16	19.0	QL50-165
QL60	152	6"	2	8×φ16	8×φ16	25.0	QL60-152
	165	6 1/2"	2	8×φ18	8×φ16	27.0	QL60-165
	178	7"	2	8×φ18	8×φ18	28.5	QL60-178
	190	7 1/2"	3	9×φ18	9×φ16	31.0	QL60-190
	203	8"	3	9×φ18	9×φ18	33.0	QL60-203
QL80	195	7 11/16	3	9×φ18	9×φ16	32.0	QL80-195
	203	8"	3	9×φ18	9×φ18	41.0	QL80-203
	216	8 1/2"	2	10×φ18	12×φ16	49.0	QL80-216
	254	10"	3	11×φ18	17×φ16	71.0	QL80-254
	305	12"	4	12×φ18	29×φ16	95.0	QL80-305

Bit 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, CD35
4) Dia. 105mm-152mm, shank COP44, DHD340, Halco MACH44, SD4, M40, QL40, CD45
5) Dia. 135mm-165mm, shank COP54, DHD350R, COP54, Halco MACH50, SD5, M50, QL50, CD55
6) Dia. 152mm-254mm, shank COP64, DHD360, SD6, M60, QL60, CD65
7) Dia. 203mm-330mm, shank COP84, DHD380, SD8, QL80, CD85
8) Dia. 254mm-380mm, shank SD10, Numa100
9) Dia. 305mm-508mm, shank DHD1120, SD12, N120, N125

Products:

Bit face shape options:
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.
 

Carbide 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.


Production Corners:
 

Package:
Carton box with foam, then into the ply-wooden cases and or pallet for protecting the products and avoid the damagement during transportation.
Customized package acceptable.

Quality Warranty:
Our products are made of high quality steel and all spares parts are inspected strictly before shipping. We have quickly responses for your complaint and suggestion.

Production Lead-time:
Generally need 15-30 days.

Transportation:
By air, By Express or By sea according to your requests.