4 Inch DTH Down The Hole Hammers DTH Rock Drilling Tools

• Certification: CE
• Standard: AISI
• Surface Treatment: Oxidation
• Manufacturing Process: Forging
• Material: Alloy Steel
• Model NO.: ND45A
• Production Capacity: 5000/Years

Product Description

DTH hammers down the hole hammers DTH equipment down the hole equipment rock drilling tools 

We have all series of drilling equipment and drilling tools for water well or mining
By using high-quality raw materials, utilizing advanced craft technologies and imposing strict quality inspection, the product range covers:DTH drilling rig,DTH drill tools(dth hammers and dth bits),drill pipes, underground water detector, shank adapters and coupling sleeves, drilling rig, air compressor and spare parts for drill equipment.
All products are interchangeable with various products manufactured by Atlas Copco.

Product Description

DTH (Down-the-hole) Hammer And Bits

High Air Pressure DTH hammers(3''-12''):

1.ND(DHD Shank) series high air pressure DTH hammer includes:DHD3.5,DHD340,DHD350R,DHD360,DHD380,DHD1120

2.QL series high air pressure DTH hammer includes:QL40,QL50,QL60,QL80

3.SD series high air pressure DTH hammer includes:SD4,SD5,SD6,SD8,SD10,SD12

4.NUMA series high air pressure DTH hammer includes:NUMA100,NUMA120,NUMA125

5.COP series high air pressure DTH hammer includes:COP44,COP54,COP64,COP84

Connect Thread : API 2 3/8" , API 3 1/2 , Reg-6 5/8"Reg etc.

 

DTH Hammer Advatages

1.Valveless air distribution.More reliable.

2.Simple design of the piston.long life span.

3.More effcient energy transfer,faster drilling speed,lower air consumption and lower oil consumption.

4.Fewer intemal parts,simple structure,long life span,less failure and easier to maintain because all the parts are heat trated.

5.Easy to disassemble because the top sub,the drive chuck and the extemal cyinder are connected by muitiple steps thread.

Detailed parameters

ND Series High Air Pressure DTH Hammers With Foot Valve
Item Description		Weight(kg)
		ND35		ND45		ND55		ND55C		ND65		ND85		ND1120
1,Top Sub		4.20		6.50		15.00		13.70		20.00		41.00		70.00
2,"O" Ring Of Top Sub		0.01		0.01		0.01		0.01		0.02		0.02		0.04
3,Breakout Ring		0.01										0.20		0.80
4,Chenck Valve		0.20		0.42		1.00		1.00		1.00		1.50		3.00
5,Spring		0.02		0.04		0.04		0.04		0.04		0.10		0.10
6,Compression Buffer		0.04		0.04		0.08		0.08		0.08		0.42		1.00
7,Air Distributor		1.40		2.20		3.70		3.50		5.00		12.50		20.00
8,Internal Cylinder		1.60		2.30		4.50		4.20		5.00		8.60		23.00
9,Piston		5.40		9.00		15.50		17.20		23.60		41.00		125.00
10,External Cylinder		9.50		15.00		30.00		26.50		36.80		62.00		170.00
11,Guided Sleeve								1.20		2.40		9.60		16.00
12,"O" Ring Of Stop Ring		0.01		0.01		0.01		0.02		0.02		0.02		0.04
13,Stop Ring		0.20		0.20		0.30		0.50		0.60		1.20		4.50
14,Breakout Ring		0.01										0.20		0.80
15,Drive Chuck		1.95		3.50		6.40		4.50		6.00		17.50		48.00
16,Drill Bit		5.00		9.00		16.00		15.60		26.00		40.00		120.00
Technical Data
Length(Without Bit)	ND35		ND45		ND55		ND55C		ND65		ND85		ND1120
	930mm		1045mm		1214mm		1160mm		1248mm		1492mm		1900mm
Weight(Without Bit)	25.00kg		39.00kg		76.50kg		72.50kg		100.00kg		188.00kg		480.00kg
External Diameter	Ø82mm		Ø99mm		Ø126mm		Ø126mm		Ø142mm Ø144mm Ø146mm Ø148mm		Ø180mm/Ø185mm		Ø275mm
Bit Shank	NHD3.5		COP44/DHD340		COP54/DHD360		COP55C/DHD350Q		COP64/DHD360		COP84/DHD380		CDHD1120
Hole Range	Ø90-Ø110mm		Ø110-Ø135mm		Ø135-Ø155mm		Ø135-Ø155mm		Ø155-Ø190mm		Ø195-Ø254mm		Ø305-Ø445mm
Connection Thread	API2 3"/8REG		API2 3"/8REG		API2 3"/8REG API3 1"/2REG API2 7"/8REG		API2 3"/8REG API3 1"/2REG API2 7"/8REG		API3 1"/2REG		API4 1"/2REG		API6 5"/8REG
Working Pressure	1.0-1.5Mpa		1.2-2.0Mpa		1.3-2.3Mpa		1.3-2.3Mpa		1.5-2.5Mpa		1.5-3.0Mpa		2.0-3.5Mpa
Impact Rate at 17 Bar	28HZ		27HZ		25HZ		25HZ		23HZ		27HZ		16HZ
Recommended Rotation Speed	25-40r/min		25-40r/min		20-35r/min		20-35r/min		20-30r/min		20-30r/min		15-25r/min
Air Consumption	1.0Mpa:4.5m³/min 1.5Mpa:9.0m³/min		1.0Mpa:6.0m³/min 1.8Mpa:10.0m³/min 2.4Mpa:15.0m³/min		1.0Mpa:9.0m³/min 1.8Mpa:15.0m³/min 2.4Mpa:23.0m³/min		1.0Mpa:9.0m³/min 1.8Mpa:15.0m³/min 2.4Mpa:23.0m³/min		1.0Mpa:10.0m³/min 1.8Mpa:20.0m³/min 2.4Mpa:28.5m³/min		1.0Mpa:15.0m³/min 1.8Mpa:26.0m³/min 2.4Mpa:34.0m³/min		1.0Mpa:30.0m³/min 1.8Mpa:56.0m³/min 2.4Mpa:78.0m³/min

 
We can design and manufacture according to customers requirement of the bit diameter,the NO.of air holes,carbide buttons and the face shape.
 
Company Information

ABT Drilling Equipment Co., Ltd. mainly provides holistic drilling solutions, serving the mining, stone crushing, water conservancy drilling industry, to help you solve the problem of drilling at high efficiency and low cost. We mainly provide mobile air compressors, drilling rigs, impactors, drills, crushers, water meters, is your stable and reliable partner.

 

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