| Customized: | Customized |
|---|---|
| Standard: | API |
| Length: | Taper-length |
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HDD Drilling Introduction
Horizontal Hole Openers, also known as HDD Reamers, are used to enlarge the pilot hole in Horizontal Directional Drilling(HDD)
HDD is used when trenching and excavating is not practical.This drilling technology allows for a steerable trenchless way to drill underground.
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,Rock Reamer or Hole Opener.
3>The third stage is inserting the casing pipe or other product into the enlarged hole.
The main structure features:
The Rock Reamer with replaceable cutter was developed for large diameter HDD projects where extended life downhole is critical. The larger bearing and cutters dramatically extend the downhole life over smaller, conventional-style cutters.
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.
300-1800mm hole opener are available.
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