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Well Drilling 4'' DTH Hammer With External Diameter 99mm 2 3/8'' API REG

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Well Drilling 4'' DTH Hammer With External Diameter 99mm 2 3/8'' API REG

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Brand Name :	SOLLROC
Model Number :	HD45A
Certification :	SGS
Price :	negotiable
Payment Terms :	T/T,
Supply Ability :	10000 pieces/month
Delivery Time :	18 working days

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Well Drilling 4'' DTH Hammer With External Diameter 99mm 2 3/8'' API REG

4'' DTH Hammer with External Diameter 99mm and 2 3/8'' API REG for Well Drilling

Product description:

A down-the-hole hammer (DTH hammer) is a tool that can be attached to the end of a drill string and inserted into a bore. It's a small jack hammer used to break hard rock into small particles that can be flushed away by the DTH hammer's air exhaust.It is one of the mainstream drilling technologies for mining and quarrying worldwide. Recent improvements have largely been aimed at making systems more fuel-efficient and at optimizing tool life.

Product Advantages:

1.Capable of drilling in almost all ground conditions.
2.Constant energy directly behind bit provides speed with less power loss and greater hole accuracy.
3.Rigid drill string improves hole alignment.
4.cost-efficient and environmentally friendly drilling

DTH Hammer specification:

HD45A hammer

shank	HD45A
Length(less bit)	1011mm
External diameter	92mm/99mm (optional)
Top sub thread	API 2 3/8”REG
Weight(less bit)	39kg
Hole range	110mm-130mm
Working pressure	1.0-2. 5Mpa(145-362.5psi)
Impact rate at 1.7Mpa	30Hz
Recommended rotation speed	22-35rpm

HD45A bit specification

For 4" hammer DTH bits shank	Bit Dia.		No. Air Holes	Gauge Buttons	Front Buttons	Weight (Kg)	Part No.
For 4" hammer DTH bits shank	mm	inch	No. Air Holes	Gauge Buttons	Front Buttons	Weight (Kg)	Part No.
HD45A	105	4 1/8"	2	6×φ14	5×φ13	9.0	DHD340-105
	110	4 1/4"	2	7×φ13	6×φ13	9.3	DHD340-110
	115	4 1/2"	2	7×φ14	6×φ13	10.0	DHD340-115
	120	4 3/4"	2	8×φ14	6×φ14	11.0	DHD340-120
	127	5	2	8×φ14	7×φ14	12.0	DHD340-127

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Well Drilling 4'' DTH Hammer With External Diameter 99mm 2 3/8'' API REG

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