8'' DTH Hammers for sale DHD380, Mission80,QL80, SD8, WOOKE80 with best price
- 7.24 CNY/pcs - from 10 pcs
- Courier
- In detail
- BrandWooke
- Country of manufactureChina
- ApplicationMining, Open pit, Water well drilling...
- ColorYellow, Gold or as per request
- Hole range194-305mm
- Working pressure8-30 bar
- Unit weight182kg
- Hammer length without bit1211mm
- Bit shankQL80,DHD380, COP84, SD8, M80
- MaterialHigh quality alloy steel
- PackagPloywood case
- LabelAs per request
- Top sub4 1/2REG
- Impact rate at 1.7Mpa25HZ
- Recommended rotation speed30-70r/min
- Air consumption145-370(PSI) / 836-1096(CFM)
8'' DTH Hammers for sale DHD380, Mission80, QL80, SD8, WOOKE80 with best price
Hole Range: ø194 - ø305
Work Pressure: 8 - 30 bar
Air consumption: 10bar - 12m3/min
18bar - 26m3/min
24bar - 35m3/min
Structure Feature:
1. Standard API Thread
2. Top sup with cement carbide button (Alternative)
3. Internal parts are highly assembled to avoid interactive wear and hammer's reliablity is increased.
4. Piston case: Using superior alloy steel, even better reliability and longer life after heat treatment.
5. Hammer front structure design: when pulling out the hammer, the last impact of the piston would fall on the step of piston case, ensuring the safety of the driver sub splines and the retainer ring.
In order to increase the working life of the piston case when drilling every abrasive rock, the driver sub is designed to be made up of three pieces and only the wear - proof casing needs to be replaced timely.
Heat treated piston and internal cylinder guiding system are reasonably structured to achieve the highest efficiency and the largest impacting power. The penetration speed is 10% - 30% faster than other products of the same type.
TND optimized structure design: Fewer air holes on the internal cylinder, highest stiffness of air slot.
The multiple threads are CNC machined to achieve high accuracy, making the bit easy and smooth to get assembled. Driver sub is heat treated to achieve better abrasiveness and longer life.