DTH Hammers

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Maxdrill’s DTH hammers, equipped with DTH drill bits, have strong excavation capability and thus are applied in the fields of site investigation, open-pit mining, quarrying and building construction.

Maxdrill’s DTH hammers deliver outstanding drilling performance while reducing the drilling cost. In underground mining projects, they ensure high-efficient transmission of percussive force into the rock, high drilling accuracy and the optimal drilling outcome.

Advantages

Delivers maximum energy to the drill bit, enabling a fast drilling speed and low air consumption due to the specialized inner structure of DTH hammers. Each one is designed according to the latest in rock drilling theory.
The smooth performance and long service life of the DTH hammer is due to the high quality alloy steel materials and advanced processing technology used to manufacture the hammer.
There is a very low problem rate, and maintenance is easy due to the simple, reliable and easy to assemble/disassemble inner structure of the hammer.
It is easy to remove the bit from the hammer due to the multihead thread connecting the chuck and cylinder of the hammer.
The DTH is interchangeable with a DTH bit and drill pipe.

Highlights

The simple structure design reduces downtime to a large degree;
It is short, lightweight and safe;
Maxdrill’s patent designs of DTH drill hammers maximize the transmission efficiency of the percussive force;
Surface of parts are enhanced to be anti-fatigue and thus DTH hammers have longer service life;
Contact surface area, pneumatic chambers and the percussive rate have been improved to increase the drilling speed.

Specifications

Including DTH hammers with valve, DTH hammers without valve, big hole DTH hammers and low air pressure DTH drilling tools
Length: 3 to 12 inch
Package: in plywood
Productivity: 2,000pcs/month

Parameter

Inch	Type	Bit Shank	Connection Thread	Optional
1"	MBR1A	BR1	RD 40 / BOX	with foot valve
2"	MBR2A	BR2	RD 50 / BOX	without foot valve
2"	MD25A	MD25	T42 x 10 x 1.5	without foot valve
3"	MD35	DHD3.5	API 2 3/8	with foot valve
3"	MD35A	IR3.5	API 2 3/8	without foot valve
4"	MD45S	DHD3.5	API 2 3/8	with foot valve
	MD45	Cop44/DHD340
	MQL4	QL40
	MSD4	SD4
	MQL4	Cop44/DHD340A
	MM4A	Mission40A		without foot valve
	MQL4A	QL40		without foot valve
5"	MD55	Cop54/DHD350R	API 2 3/8 API 3 1/2	with foot valve
	MD55S	Cop54/DHD350R		with foot valve
	MM5A	Mission50A		without foot valve
	MSD5A	SD5
	MQL5A	QL50
	MD55A	Cop54/DHD350R
	MSD5	SD5	API 3 1/2	with foot valve
	MQL5	QL50	API 3 1/2	with foot valve
6"	MD65A	Cop64/DHD360	API 3 1/2	without foot valve
	MM6A	Mission60A
	MSD6A	SD6
	MQL6A	QL60
	MD65	Cop64/DHD360		with foot valve
	MSD6	SD6
	MQL6	QL60
7"	MW7-A	MK70A	API 3 1/2	without foot valve
8"	MD85A	Cop84/DHD380	API 4 1/2	without foot valve
	MSD8A	SD8
	MQL8A	QL80
	MD85	Cop84/DHD380		with foot valve
	MSD8	SD8
	MQL8	QL80
9"	MQL95A	QL80	API 4 1/2	without foot valve
10"	MSD10	SD10	API 4 1/2 API 5 1/2	with foot valve
	MN100A	NUMA100	API 4 1/2 API 5 1/2	without foot valve
	MN100	NUMA100	API 6 5/8	with foot valve
	MSD10A	SD10		without foot valve
	MD1120A	DHD1120		without foot valve
12"	MSD12	SD12	API 6 5/8	with foot valve
	MN125	NUMA125		with foot valve
	MSD12A	SD12		without foot valve
	MN125A	NUMA125		without foot valve
15", 20", 25"	MD330A	MD330	API 7 5/8	without foot valve
	MD450A	MD450	According to your request
	MD525A	MD525	According to your request

DTH Hammers Information Downloads

DTH hammers with foot valve
DTH hammers without foot valve
Big hole DTH hammers
Low air pressure DTH drilling tools