High Rock Breaking 100mm 220mm HDD Pilot Hammer System
Introduction
Use HDD Pilot Hammer to cooperate with drilling rigs and
corresponding drilling tools for impact rotary drilling. The HDD
Pilot Hammer is connected to the bottom end of the drill rod. The
drill rig drives the drill rod to rotate. The compressed air enters
the HDD Pilot Hammer through the drill rod to produce a certain
frequency of impact force to break the rock. At the same time, the
exhaust gas is used to cool the hammer head. Drain the chippings
out of the hole. Because the outer diameter of the HDD Pilot Hammer
is smaller than the drill diameter, it can be lowered into the hole
as the drill depth increases. Compared with the pneumatic drill
that impacts outside the hole, its impact power loss is small, and
it can drill deeper holes.
Advantages
1. Using advanced CNC machining and advanced alloy tooth assembly
technology, the tooth loss rate is less than 1%.
2. The trouser body is made of high-strength high-quality alloy
steel. After advanced heat treatment, the damage rate of the pants
is less than 1%.
3. The hard alloy tooth material adopts high wear-resistant
formula, and the tooth breaking rate is less than 2%.
Product parameters
| Bit Diameter | 5 1/2” |
| Curved sub | 1° and 1.5° |
| Drill pipe threads | NC23 NC26(2 3/8IF) D50 D80 NC31(2 7/8IF) NC38(3 1/2IF) |
| Air consumption | 20-30m3/Min |
| Working pressure | 0.7-2.4Mpa |
| Strength | ≥2800N |
| Hardness (HRA) | ≥92 |
| Wind pressure | 0.5-0.7Mpa |
| Drilling depth | 500 m |
| Drilling angle | 38 (°) |
| Dimensions | 80-220 (mm) |
| Pneumatic DTH hammer | Ø125mm |
| Weight | 0.06 (t) |
Features
1. The efficient bit can be optimized and customized according to
the rock structure.
2. The drill bit has high wear resistance and can hit more meters.
3. High quality drilling, fast drilling speed, no need for
grinding.
4. The speed of bit impact rock is fast, the rock drilling speed is
fast, and the rock breaking efficiency is high.
Field of use
This method is suitable for drilling into hard rock formations, the
drilling is not easy to deviate, and it is more advantageous to use
in water-deficient areas. It is used to drill into hard rock and
pebble layers, and the drilling efficiency can be increased several
to ten times compared with conventional rotary drilling and
mechanical percussion drilling, and it has been promoted as an
advanced technology. Its application fields have been expanding. In
the past, it was mainly used for drilling blast holes in mines, but
it has been used in hydropower, railways, highways, water wells,
building foundation piles, and geological prospecting.
Pic Show
FAQ:
1. How to order the products?
A: Please send the inquiry with detail item description or with
Model number.
2. How about the common packing?
A: If there is no special packing demand, we will take it as our
normal packing. First in small carton, and then put in the bigger
carton together to make sure goods completed.
3. Can I expect a quality products?
A: Yes. mature production technology ensuring the quality satisfy
international request.
4. How to check the product are the exact one you want?
A: If possible, please attach one reference picture to avoid any
misunderstanding or any links from our website for a better
understanding.
5. How to control quality?
A: We have our own experienced QC team,there will be strict
inspection and testing for each order before shipping out.
6. Fast delivery time:
A: Usually it takes 25 days for production.only 3 or 5 days if we
have stock of your request size.
7. Competitive price:
A: Our factory can supply you the lowest price due to direct sale
to customers without distributor!
