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300mm Horizontal Directional Drilling Soil Drill Hole Opener
Introduction
HDD hole opener for horizontal drilling
Horizontal reamer, also known as HDDD reamer, is used to expand the
pilot hole of horizontal directional drilling (HDDD) - HDDD is used
when grooves and excavations are not practical. This drilling
technique allows drilling underground in a manipulable trenchless
manner.
The main structure features
Reamer with interchangeable tool was developed for large diameter
HDD projects where extending downhole life is critical. Larger
bearings and tools significantly extend downhole life compared to
smaller, conventional types of tools.
The replaceable cutter sets are available in both TCI and Milled
Tooth styles to fit for all sorts of rock formation. All bit's
bodies have three-six cutters and can open four different hole
sizes.
All cutters bearing is metal sealed. Cutters lock is used for
preventing cutter failing off.
400-2000mm hole opener are available.
Advantages
Cutting structure
The reaming bit is mainly composed of four or more cones. The main
cutting teeth are new wear-resistant alloys for tungsten carbide
inserts and steel teeth welding. The service life of the reaming
bit is improved by the high quality tungsten carbide teeth with new
formula and new technology. The guide is a roller bit or a drawing
bit.
Seal and Lubrication
The bearing seal applys high performance O-ring seal or metal
sealed bearing and imported lubrication grease special for bit.
Product Predominance
It is applied in the big size casing well section, mining and
infrastructure building drilling.
Product parameters
Surface Treatment | Spray-Paint |
Manufacturing Process | Casting |
Material | Cast Iron, Alloy Steel |
Wob Kn/mm | 0.40~1.05 |
Volume | 180×98×108cm |
Nw/ Gw (Kg) | 330/ 350 |
Bearing Type | Metal Sealed Sliding Bearing |
RPM r/ min | 110~40 |
Bearing Type | Journal Bearing |
Sealed Material | Rubber/Metal |
Color | Blue, Golden |
Advantage | High Performance |
Connected Thread | 6 5/8′′reg |
There are three stages
1. The first stage is to drill a small diameter pilot hole.
2. The second stage is enlarge the hole with a larger diameter
cutting tool called an HDD Reamer,
3. The third stage is inserting the casing pipe or other product
into the enlarged hole.
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!