4inch High Air Pressure Rock Drilling Tools DTH Hammers Without Foot Valve Compatible with DTH Bit Ql40, Mission40, SD4, DHD340, Cop44, CD45A

• Connection Thread: API 2 3/8" Reg
• Hole Range: Dia 110 - 135 mm
• Working Pressure: 1.0 - 2.5MPa
• Compatible Bit Shank: Ql40, Mission40, SD4, DHD340, Cop44, CD45A
• Transport Package: Ply-Wooden Cases for Exporting
• Specification: 2 inch to 12 inch
• Trademark: Super Diamond
• Origin: China
• HS Code: 8207199000

Product Description

About us:

We are a leading manufacturer for various of rock drilling tools, incl. DTH hammers and bits, RC hammers and bits, top hammer button bits, ODEX etc. Our factory locates in LiuYang city, HuNan province, China. 
Premium quality, professional serivce and competitive price, we get very good reputation from our worldwide customers, not only from the domestic, also from Brazil, Peru, South Africa, Australia, Turkey, Russia, Ukraine, Korea etc..



4inch High Air Pressure DTH Hammer Without Foot Valve compatible with bit shank QL40 / SD4 / Mission40 / DHD340 / COP44 / CD45A

Our strongpoints:
1. High quality raw material, with premium hardened procedures for long life.
2. With full production chain to secure stable and prompt production leadtime.
3. Experienced Senior Technicians.
4. Long year experienced workers and engineers.
5. Quick and efficient service.
6. Care customers' concerned. 

The advantages of hammers without foot valve against with foot valve:
1. No more worries on the foot valve breakage or distortion or expansion due to the abrasion or high tempreture.
2. Higher impact rate, lower energy consumption, around 15-30% higher drill speed than the one with foot valve
3. Remain simple design, and reliable parts, long life, easy and cheap maintenance.
4. Lower air and oil consumption, oil consumption can be around 10% lower than the one with foot valve.
5. Strongly recommond.


4" DTH hammer specifications:

Model: DHD340, COP44, SD4, Mission40, QL40
 

DTH Hammers	DHD340 COP44	SD4	Mission40	QL40
Length(less bit)	1030mm	1084mm	1005mm	1097mm
Weight (less bit)	39kg	40.5kg	40.0kg	41.00kg
External diameter	99mm	99mm	99mm	99mm
Bits shank	DHD340 COP44	SD4	Misson40	QL40
Bits diameter	105-130mm 4 1/8" - 5 1/8"	105-130mm 4 1/8" - 5 1/8"	105-130mm 4 1/8" - 5 1/8"	105-130mm 4 1/8" - 5 1/8"
Connection thread	API 2 3/8" Reg	API 2 3/8" Reg	API 2 3/8" Reg	API 2 3/8" Reg
Air pressure	1.0-2.5Mpa	1.0-2.5Mpa	1.0-2.5Mpa	1.0-2.5Mpa

 

 

 

Other DTH Hammers Technical Data:

DTH Hammers	Bit Shank	Connection Thread	Suitable bit	Working pressure	Air consumption
1-3" Middle-low pressure DTH hammers	BR1 BR2 BR3	RD40 box RD50 box API 2 3/8" Reg	¢64-¢76mm ¢70-¢90mm ¢90-¢110mm	0.7-1.75Mpa 0.7-1.75Mpa 0.7-1.75Mpa	0.7Mpa	4.5m3/min
					1.0Mpa	4m3/min
					1.4Mpa	5m3/min
3" hammers	DHD3.5 COP32/COP34 M30	API 2 3/8"Reg	¢90-¢110mm	1.0-1.5Mpa	1.0Mpa	4.5m3/min
					1.5Mpa	9m3/min
4" hammers	DHD340 COP44 QL40 SD4 M40	API 2 3/8"Reg	¢105-¢130mm	1.0-2.5Mpa	1.0Mpa	6m3/min
					1.8Mpa	10m3/min
					2.4Mpa	15m3/min
5" hammers	DHD350 COP54 QL50 SD5 M50	API 2 3/8"Reg / API 3 1/2"Reg	¢130-¢156mm	1.0-2.5Mpa	1.0Mpa	9m3/min
					1.8Mpa	15m3/min
					2.4Mpa	23m3/min
6" hammers	DHD360 COP64 QL60 SD6 M60	API 3 1/2"Reg	¢152-¢203mm	1.0-2.5Mpa	1.0Mpa	10m3/min
					1.8Mpa	20m3/min
					2.4Mpa	28.5m3/min
8" hammers	DHD380 COP84 QL80 SD8	API 4 1/2"Reg	¢200-¢279mm	1.0-3.0Mpa	1.0Mpa	15m3/min
					1.8Mpa	26m3/min
					2.4Mpa	34m3/min
10" hammers	SD10 NUMA100	API 6 5/8"Reg	¢254-¢330mm	1.2-3.0Mpa	1.0Mpa	22m3/min
					1.8Mpa	40m3/min
					2.4Mpa	55m3/min
12" hammers	DHD1120 SD12 NUMA120 NUMA125	API 6 5/8"Reg	¢305-¢381mm	1.2-3.0Mpa	1.0Mpa	30m3/min
					1.8Mpa	56m3/min
					2.4Mpa	78m3/min

Our Production Corner 1:

Production Cornor 2:

Package:
Carton box with foam, then into the ply-wooden cases and or pallet for protecting the products and avoid the damagement during transportation.
Customized package acceptable.

Production Lead-time:
Generally need 15-30 days.


Transportation:
By air, By Express or By sea according to your requests.