Atlas Copco 3" 4" 5" 6" 8" Down The Hole DTH Drill Hammers and Bits Ql50 Flat Face Bit From China Supplier

• Customization: Available
• Certification: ISO 9001:2008
• Surface Treatment: Spray-Paint
• Material: Alloy Steel
• Mining Type: Mining
• Transport Package: Ply-Wood Case for Safe Delivery
• Specification: 130 - 156 mm
• Trademark: Super Diamond
• Origin: China
• HS Code: 8412310090
• Production Capacity: 50, 000PCS / Year

Product Description

Description:
DTH Drill Bits are produced from premium quality nickel-alloy steel for increased durability and wear characteristics. Specific heat treatment standards and special "stress relief" processes ensure consistent performance. 
DTH hammer bits are designed for maximum performance and hole cleaning ability and high penetration rate. 
Our bits are interchangeable with Atlas Copco's COP32 34 44 54 64 84, Ingersoll-Rand 's DHD3.5,DHD3.5HD, DHD 340A , DHD350R, DHD 360, DHD380 QL40, QL50 , QL60, QL80.NUMA100, NUMA120, MISSION60,ects
 

Technical Parameters ( BROCA PARA MARTILLO DE FONDO Drill Bits )
Diameter		No x Button diameter, mm		Button angleº		Flushing holes	Weight(kg)	Part No
mm	inch	Gauge Buttons	Front Buttons
76	3	6*13	4*10	38		2*12	3.5	CD-25-76
80	3 1/8	6*14	4*11	38		2*12	3.8	CD-25-80
82	3 1/4	6*14	4*11	38		2*12	3.9	CD-25-82
90	3  9/16	8*12	5*12	38		2*12	4.3	CD-25-90

DTH drill bits
1. Customized acceptable
2. Bit diameter, face shape
3. Carbide button shape
4. Qty of air hole




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.