High air pressure DTH bits

Description

Down-the-hole (DTH) hammer bits are used with Down-the-hole hammers for drilling holes through a wide range of rocks types. In conjunction with DTH hammers, drill hammer bits are designed with a spline drive for rotating the bit in the ground. Drill bits are available in different sizes and different styles so they can drill a wide range of hole sizes.

Faetures of High Air Pressure DTH Drill Bits
1.three basic DTH drill bit designs: Flat front, Convex, Concave. All shapes for all types of  rock of hard, soft or abrasive.  
2.Deliver maximum energy to DTH drilling bit, fast drilling speed and low air consumption due to inner structure of HD series DTH hammer designed according to newest rock drilling theory.
3.Smooth performance and long service life of DTH drill bits due to high quality alloy steel materials and advanced processing technology adapted.
4.Low problem rate and easy to maintenance due to simple , reliable and easy assemble and disassemble inner structure of DTH drill bits.
5.Easy to depart the dth bit from hammer due to multi-head thread connecting chuck and cylinder of hammer.

high air pressure DTH bits Face Shape Selection:

Face shape		Use condition
	Concave Face	the all-round application bit face specifically for medium hard and homogenerous 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 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.
	Flat Face	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.

high air pressure DTH bits button Shape Selection:

Performance

High Air Pressure 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.   

Applications

High Air Pressure DTH Drill Bits are used mining industry, energy, metallurgy, geology, coal, water conservancy, chemical industry and road construction.

Specification