3"Inch 4"Inch 5"Inch 6"Inch 8"Inch 10" Inch 12" Inch DTH Hammers

• Certification: CE, ISO 9001:2008
• Standard: AISI, GB, ASTM, DIN
• Surface Treatment: Polishing
• Manufacturing Process: Forging
• Material: Carbon Steel
• Transport Package: Wooden Box
• Model NO.: 12inch DTH hammer
• Specification: 3 4 5 6 8 10 12 inch
• Trademark: ROSCHEN
• Origin: China
• HS Code: 84314320
• Production Capacity: 500000

Product Description

3"Inch 4"Inch 5"Inch 6"Inch 8"Inch 10" Inch 12" Inch DTH Hammers

Model:SD12, DHD1120,NUMA120,NUMA125
 
ROS120-SD DHD hammers are improved in many projects and widely used for varies applications, including overburden casing drilling and water well drilling.
 
Features:

1. Valveless air distribution ensures smooth working.
2. Piston design and harden wear part ensure strong wear-resistance
3. Minimize the energy loss, high penetration, lower air and oil consumption
4. Fewer internal parts minimize the maintain and replace the part requirement

DTH hammer is used for drilling holes through a wide range of rock types, the variety of which continues to extend well beyond the original conception of early blast hole drilling.

Down-the-Hole refers to where the hammer action occurs when compared to drifter hammers, which hammer on top of the drill string. The DTH hammer piston always makes direct contact with the drill bit and there is generally no loss of transmitted energy as the hammer drills deeper, as is the case with drifter (top hammer) rigs.

Roschen offers a wide range of DTH hammers suitable for a variety of drilling operations. Our Down the Hole hammers provide the most versatile and cost effective rock drilling method.
 

ROSCHEN DTH Hammers Specifications
Hammer Size	Bit Shank	ROSCHEN Code	Connection Thread	Suitable bit	Working pressure	Air consumption
2"	BR2	ROS 11              ROS 22	RD50 box	¢70-¢90mm	0.7-1.75Mpa	0.7Mpa	4.5m3/min
						1.0Mpa	4m3/min
						1.4Mpa	5m3/min
3"	DHD3.5	ROS 32	API 2 3/8" Reg	¢90-¢110mm	1.0-1.5Mpa	1.0Mpa	4.5m3/min
	COP32/COP34
	M30					1.5Mpa	9m3/min
4"	DHD340	ROS 34	API 2 3/8" Reg	¢110-¢135mm	1.0-2.5Mpa	1.0Mpa	6m3/min
	COP44
	QL40
	SD4					1.8Mpa	10m3/min
	M40					2.4Mpa	15m3/min
5"	DHD350	ROS 52            ROS 54	API 2 3/8"Reg/API 3 1/2" Reg	¢135-¢155mm	1.0-2.5Mpa	1.0Mpa	9m3/min
	COP54
	QL50
	SD5					1.8Mpa	15m3/min
	M50					2.4Mpa	23m3/min
6"	DHD360	ROS 62           ROS 64	API 3 1/2" Reg	¢155-¢190mm	1.0-2.5Mpa	1.0Mpa	10m3/min
	COP64
	QL60
	SD6					1.8Mpa	20m3/min
	M60					2.4Mpa	28.5m3/min
8"	DHD380	ROS 82           ROS 84	API 4 1/2" Reg	¢195-¢254mm	1.0-2.5Mpa	1.0Mpa	15m3/min
	COP84
	QL80					1.8Mpa	26m3/min
	SD8					2.4Mpa	34m3/min
	M80/M85
10"	SD10	ROS 100	API 6 5/8" Reg	¢254-¢311mm	1.0-2.5Mpa	1.0Mpa	22m3/min
	Numa100					1.8Mpa	40m3/min
	ROS 100					2.4Mpa	55m3/min
12"	DHD1120	ROS 120	API 6 5/8" Reg	¢305-¢445mm	1.0-2.5Mpa	1.0Mpa	30m3/min
	SD12					1.8Mpa	56m3/min
	Numa120					2.4Mpa	78m3/min
Notes:
API, Metzke, Remet , Fabe thread is available!
Any special typ shank of DTH Hammer will be available by requests.

 

ROSCHEN DTH Bits Specifications
Hammer Size	Bits diameter		Shank	ROSCHEN CODE
	Metric	Inch
1"	64mm-70mm	2 1/2"-2 3/4"	BR1	ROS 11
2"	70mm-95mm	2 3/4"-3 3/4"	MACH20/BR2	ROS 22
3"	90mm-102mm	3 1/2"-4"	COP32/COP34/MACH303	ROS 32
			M30/DHD3.5/BR3	ROS 34
4"	105mm-152mm	4 1/8"-6"	COP44/DHD340/MACH44	ROS 42
			SD4/M40/QL40	ROS 44
5"	133mm-165mm	5 1/4"-6 1/2"	COP54/DHD350R/MACH50	ROS 52
			SD5/M50/QL50/BR5	ROS 54
6"	152mm-254mm	4 1/8"-10"	COP64/DHD360/SD6	ROS 62
			M60/QL60/Bulroc BR6	ROS 64
8"	203mm-330mm	8"-13"	COP84/DHD380/SD8	ROS 82
			QL80/M80	ROS 84
10"	254mm-380mm	10"-15"	SD10	ROS 100
			NUMA100
12"	305mm-508mm	12"-20"	DHD1120/SD12	ROS 120
			NUMA120/NUMA125
Notes: API, Metzke, Remet , Fabe thread is available!

Our Services:

Ø Provide the technical design and solutions;
Ø Designing and manufacturing of non-standard equipment;
Ø Professional technical training and guidance on site according to the contract;
Ø Supply accessories at any time;
Ø Tele-technical consulting and services;
Ø Other special technical service according to client's requirements.

 

FAQ:

1. Are you a manufacturer, trading company or a third party?

A: We are a manufacturer, and we have builded up our company since 2001.

2. How can I get to your factory?

A: Our factory is near shanghai Airport; we can pick you up in the airport.

3. If i will need to stay in your place for few days, is that possible to book the hotel for me?

A: It's always my pleasure; hotel booking service is available.

4. What is your minimum order quantity, can you send me samples?

A: Our minimum quantity is 1 PC. We can send small value free samples. However, nost samples are charged. Warmly welcome you to come visit our company.

5. Is your price competitive?

A: Only good quality product  we supply. Surely we will give you best factory price based on superior product and service.

6. Can the products be customized as our need, such as put on our logo?

A: Surely our products can be customized as your need. Put on your logo is also available.

7. May I know which payment will be accepted by your company?

A: So far 100% T/T before shipment. And 30% deposit paid by T/T, balance paid by L/C are acceptable.

8. How can I get the after-service?

A: We will send you the spare parts by free if the problems caused by us. If it is the men-made problems, we also send the spare parts; however it is charged. Any problem, you can call us directly.