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 |
34 |
K8-1 |
| 2. "O"-Ring of Top Sub |
0.015 |
K8-2 |
| 3. Check Valve |
1.2 |
K8-3 |
| 4. Spring |
0.1 |
K8-4 |
| 5. Air Distributor |
6.00 |
K8-5 |
| 6. Internal Cylinder |
6.5 |
K8-6 |
| 7. Piston |
42.5 |
K8-7 |
| 8. External Cylinder |
60 |
K8-8 |
| 9. Guided Sleeve |
5.3 |
K8-9 |
| 10. "O"Ring of Stop Ring |
0.1 |
K8-10 |
| 11. Stop Ring |
1.2 |
K8-11 |
| 12. Driver Chuck |
17.5 |
K8-12 |
| 13. Drill Bit |
|
K8-13 |
| Product data |
|
| Length(Without bit) |
1358mm |
| Weight(Without bit) |
175.0Kg |
| Bits shank |
Cop84/DHD380/HD85 |
| External diameter |
Φ180mm |
| Bits diameter |
Φ195-Φ254mm |
| Connection Thread |
API 4 1/2"Reg |
| Working Pressure |
1.0-3.0Mpa |
| Impace rate at.1.7Mpa |
22Hz |
| Recommended rotation speed |
15-25r/min |
| Air consumption |
1.8Mpa
26m³/min |
2.4Mpa
34m³/min |
Note:A kind of DTH hammer which is shorter but more efficient and energy efficient.we called them super speed series DTH hammer.
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: 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.
Audited Supplier 
Audited Supplier 
){kind=link}
){kind=link}