85 - 105mm Underground Mining Drill Bit For 3 Inch High Air Pressure BR3 / DHD330 / COP32 DTH Hammer

85-105mm DTH Drill Bit For 3 Inch High Air Pressure BR3/DHD330/COP32 DTH Hammer

for Underground mining

 

DTH Button Bit Description: 

 

HAMMER INCH	BIT DIA(MM)	BIT DIA(INCH)	SHANK
1	64MM-76MM	2 1/2"-3"	BR1
2	76MM-90MM	3"-3 1/2"	BR2/PAD320
3	85MM-105MM	3 2/5"-4"	BR3/DHD330/COP32/PAD330
3.5	85MM-110MM	3 2/5"-4 1/3"	DHD3.5/IR3.5/COP34/QL30/PAD3.5
4	105MM-140MM	4"-5 1/2"	DHD340/COP44/QL40/SD4/MISSION40/PAD340
5	127MM-200MM	5"-8"	DHD350/COP54/QL50/SD5/MISSION50/PAD350
6	152MM-254MM	6"-10"	DHD360/COP64/QL60/SD6/MISSION60/PAD360
8	195MM-350MM	7.2/3"-13 4/5"	DHD380/COP84/QL80/SD8/MISSION80/PAD380
10	254MM-380MM	10"-15"	SD10/NUMA100/DHD1100/PAD1100
12	305MM-457MM	12"-18"	SD12/NUMA120/DHD1120/PAD1120

 

3'' High Air Pressure DTH Button Bit Specification

3'' High Air Pressure DTH Bits
DTH Button Bit	Diameter		Buttons and Size (mm)		Flushing hole	Weight
	mm	inch	Gauge	Front		kg
COP32	85	3 1/3	6x13	4x12	2	4.2
	90	3 5/9	6x14	4x12	2	4.5
	95	3 3/4	6x14	5x12	2	4.7
	100	3 8/9	8x12	6x12	2	5.0
	105	4 1/8	8x13	6x12	2	5.3
BR3	85	3 1/3	6x13	4x12	2	4.2
	90	3 5/9	6x14	4x12	2	4.5
	95	3 3/4	6x14	5x12	2	4.7
	100	3 8/9	6x14	6x12	2	5.0
	105	4 1/8	8x13	6x12	2	5.3
IR3.5/COP34	85	3 1/3	6x13	4x12	2	4.2
	90	3 5/9	6x14	4x12	2	4.5
	95	3 3/4	6x14	5x12	2	4.7
	100	3 8/9	6x14	6x12	2	5.0
	105	4 1/8	8x13	6x12	2	5.3
QL30	85	3 1/3	6x13	4x12	2	4.2
	90	3 5/9	6x14	4x12	2	4.5
	95	3 3/4	6x14	5x12	2	4.7
	100	3 8/9	8x13	6x12	2	5.0
	105	4 1/8	8x13	6x12	2	5.5

 

We can design and manufacture the personalized products to meet your special applications, such as changing the tungsten carbide insert profile (spherical, ballistic, etc.), face profile (flat face, concave, convex, etc.), and flushing holes.

 

DTH Button Bit Photo:

 

BR3 95mm DTH Button Bit Photo

 

COP34 105mm DTH Button Bit Photo

 

 

DHD330

 

Bit Face Shape Selection:

 

Center Drop Bit:

 

For high penetration rates in soft to medium hard and fissured rock formations. Low to medium air pressure.

Maximum hole deviation control.

 

Concave Face

 

The all-around application bit face specifically for medium hard and homogeneous rock formations.

Good hole deviation control and good flushing capacity.

 

Convex Face

 

For high penetration rates in soft to medium-hard with low to medium air pressure. It is the most resistance to steel wash and may reduce the load and wear on gauge buttons, but poor hole deviation control.

 

Double Gauge Face

This kind of face shape is suitable for fast penetration rates in medium to hard rock formations. Designed for high air pressure and good resistance to steel wash step gauge bit.

 

Flat Face Bit

This kind of face shape is suitable for hard to very hard and abrasive rock formation is applications with high air pressure. Good penetration rates and resistance to steel wash.

 

Competitive Advantage

 

• High-grade tungsten carbide inserts
• Bit bodies manufactured from high-grade steel and processed using state-of-the-art CNC machinery and heat treatment

 

Applications

 

• Underground mining

• Down the hole rock drilling

 

Keywords

DTH BIT, DTH Button Bit, Down The Hole Button Bit, Rock Bit, Rock Drill Bit,

Low Air Pressure DTH Button Bit, High Air Pressure DTH Button Bit

About us

MIROC® Rock Drilling Tools are Rock Drilling Tools Brand by KSQ Tecnologies (Beijing) Co. Ltd.

KSQ Technologies (Beijing) Co. Ltd. provides exceptional technical know-how in development, production, and application. The company has adopted advanced manufacturing processes to ensure high quality steels and tungsten carbide inserts for its rock drilling accessories. Its personnel understand clients’ drilling needs, and have the service skills to recommend the right drilling tools for the job. Its experienced product developers can also create custom tools. Furthermore, the company’s development team introduces innovative products each year – tools that are rigorously tested in the field and proven to perform beyond industry expectations.

MIROC® Rock Drilling and Ground Support Tools include:

Integral Rods
Plug Hole Rods
Tapered Drilling Tools
Extension Drilling Tools
Drifting and Tunneling Tools
Reaming Tools
Shank Rods
Shank Adapters (Striking Bars)
Down-the-hole (DTH) Bits
Down-the-hole (DTH) Hammers