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4'' High Air Pressure DTH Hammer for Mining Compatible with Bit Shank HD45A

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Changsha Sollroc Engineering Equipments Co., Ltd

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4'' High Air Pressure DTH Hammer for Mining Compatible with Bit Shank HD45A

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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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4'' High Air Pressure DTH Hammer for Mining Compatible with Bit Shank HD45A

4'' High Air Pressure DTH Hammer for Mining Compatible with Bit Shank HD45A

Product description:

Sollroc's DTH hammer and bit are made by finest mechanical process, special heat treatment with intensive quality control by our engineers. With such effort, we have been manufacturing various products which have outstanding drilling speed, and pressure intensity with effective air pressure transmission.

Therefore, our products are widely utilized in wide range of construction sites.

Product Advantages:
1. Capable of drilling in practically any type of ground.
2. Constant energy behind the bit allows for faster drilling with less power loss and better hole accuracy.
3. The elimination of foot valve associated with the drill bit offers various technical and economical advantages.

4.The air flowing through the hole ensures efficient flushing and cleaner holes. With the same hammer, you may make a variety of hole diameters.

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

Face shape Features:
4'' High Air Pressure DTH Hammer for Mining Compatible with Bit Shank HD45A

Concave face is suitable for all-round rock formation, especially for medium hard and homogeneous rock formations,excellent control over hole deviation.

Convex face is suitable for medium hard rock formation.Non abrasive rock formations. High peneration rate.

Flat face is suitable for hard and abrasive rock formation.High peneration rates and resistance to steel wash.

Detailed photos:

4'' High Air Pressure DTH Hammer for Mining Compatible with Bit Shank HD45A

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