Changsha Tianhe Drilling Tools & Machinery Co., Ltd.| Manufacturer
Changsha Tianhe Drilling Tools & Machinery Co., Ltd.

China Manufacturer with main products: Down-The-Hole Hammers and Bits, Overburden Drilling System, Reverse Circulation Hammers and Bits, Button Bits, Shank Adapter, Coupling...

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Concentric Casing Drilling System(Symmetrix)

FOB Price: 500.00 - 5,000.00 USD/Piece
Supply Ability: 500 Piece/Pieces per Month
Shipping: in 20 days after receiving advance payment
Payment Terms: T/T(Bank Transfer)
In Stock
Place of Origin: Hunan in China
Packaging Details: in wooden case/carton


They' re suitable to drill with casing tubes whose outer diameters are from 108mm to 323mm. With stable and reliable working performance and less vibration of drill rigs, they enable to bore holes in rock formations where contain some ovals, boulders and fractures. They are usually applied to anchoring project, road construction, pipe and cable laying, sampling, geothermal well, water well, piling and etc. Detailed Product Description

Applied to the drilling where rock formation is overburden and need casing tube to support.
Certificate: ISO9001:2008, SONCAP.
Application Range
It is recommended to drill in rock formation where contains some ovals and fractures.
Design Principles
Make the casing follow easy and the equipment and operation simple
Outstanding Advantages
The stable and reliable working performance and the less vibration of drill rig and flexible to open and close.
Operation Procedure
1. When the drilling starts, the wings swing out, and reams to drive the casing shoes and tubes into the hole.
2. When finished the drilling in overburden rock formations, reverse the drilling tools and the wings will get closed, and the drilling tools can be raised from the hole.
3. Next construction can be followed.

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