DHD340 High Air Pressure Hard Rock Mining DTH Drill Hammer

• After-sales Service: Online Service
• Certification: ISO 9001:2008
• Manufacturing Process: Forging
• Material: Carbon Steel
• Product Name: High Air Pressure DTH Hammer
• Application: Mining ,Water Well Drilling
• Model NO.: HD45A 4inch
• Usage: Coal/Ore Mining, Well Drilling
• Transport Package: Standard Export Packing
• Trademark: KUANGBAO
• Origin: China
• Production Capacity: 2000 Per Month

Product Description

Product Description

HIGH AIR PRESSURE DTH hammer
DHD SERIES
DHD3.5/DHD340/DHD350/DHD360/DHD380
QL40/QL50/QL60/QL80
MISSION40/MISSION50/MISSION60/MISSION80
DESIGN HIGHLIGHTS
1. DHD/QL/MISSION series is a valve less type hammers designed for high performance at low operating air pressure.
2. Suitable bits have a strong robust design without foot valve to withstand heavy duty application.
3. DHD/QL/MISSION series hammers maximizes energy output and reduces service requirements.
4. Wear sleeve is not reversible.
5.All critical internal components are heat treated under strict control to maximize tool longevity.
EXCLUSIVE FEATURES
1.A built-in choke facility allows the driller to adjust the volume of air through the hammer to optimize cuttings evacuation.
2.Unique internal mounting of liner eliminates the need for seating ring.
3.Fewer internal components minimize service requirements.
4.Multi-start threads on backhead and chuck ensure easy coupling / uncoupling of hammer.
5.Excellent for all types of drilling applications typically for water well drilling and geothermal applications.
APPLICATIONS
Water Well     Mining   Construction   Quarry

Product Parameters

Item Description	Weight (KG)	Part Number
1. Top Sub	6.5	HD45A-01
2. "O"-Ring of Top Sub	0.01	HD45A-02
3. Check Valve	0.42	HD45A-03
4. Spring	0.04	HD45A-04
5. Air Distributor	2.20	HD45A-05
6. Internal Cylinder	2.3	HD45A-06
7. Piston	9	HD45A-07
8. External Cylinder	15	HD45A-08
9. Guided Sleeve	1.3	HD45A-09
10. "O"Ring of Stop Ring	0.1	HD45A-10
11. Stop Ring	0.2	HD45A-11
12. Driver Chuck	3.5	HD45A-12
13. Drill Bit		HD45A-13

Product data
Length(Without bit)	1011mm
Weight(Without bit)	43.2Kg
Bits shank	Cop44/DHD340/HD45
External diameter	Φ99mm
Bits diameter	Φ110-Φ135mm
Connection Thread	API 2 3/8"Reg
Working Pressure	1.0-3.0Mpa
Impace rate at.1.7Mpa	30Hz
Recommended rotation speed	25-40r/min
Air consumption	1.0Mpa 6m³/min	1.8Mpa 10m³/min
Note:The following parameters take DHD340A without foot valve DTH hammer as an example. We also can provide Mission40 , Cop44 , QL40 , SD4 series DTH hammers to you.

Packaging & Shipping

FAQ

1. what can you buy from us?
DTH drilling rig,water well drilling rig,screw air compressor,piston air compressor,pneumatic rock drill ,drill bit,Tricone bit ,DTH hammer,drill rod,spare parts

2. How can I make payment?
A: You can pay directly online on Alibaba with credit card, or TT, Western Union, LC etc.

3.  How is the shipment?  How long dose it take?
A: For large quantity or heavy products, we ship by sea shipping or land shipping.  Shipping efficiency depends on country and city you want to ship to.  For small and delicate products, we ship by DHL, UPS, Fedex or TNT. You can also appoint shipping method you like before we ship.

4. How is your quality control?  
A: We have our own experienced QC. There will be strict inspection and testing for every order before shipping out.

5. Do you have any certificate of authorization?  
A: Our machinery is CE certified.