ODEX Casing System | Overburden Drilling Tools | SUPERDRILL

ODEX (Overburden Drilling Eccentric) is a specialized drilling method that allows simultaneous casing advancement and hole drilling in loose or unconsolidated ground. Also known as Stratex, Tubex, or ODS, the system is based on an air-driven DTH hammer with an eccentric bit that swings out to ream a larger hole at the bottom of the casing.

At SUPERDRILL, we manufacture and supply complete ODEX casing systems ranging from ODEX90 to ODEX280, compatible with all popular DTH hammer shanks from 3" to 10".

How ODEX Drilling Works

The ODEX system includes a concentric pilot bit followed by an eccentric reamer bit that enlarges the hole beyond the casing diameter. Behind the reamer is a guide device that locks into a special casing shoe. As drilling progresses, the casing is pulled down simultaneously. After reaching the target depth, the eccentric bit is retracted and retrieved, leaving the casing in place.

Cuttings are flushed through the gap between the guide device and casing shoe, enabling clean operation and easy sample collection.

Key Advantages of SUPERDRILL ODEX Systems

Efficient Casing Advancement

Drill and case the hole in a single step with no need for separate reaming tools or casing jacks.

Retrievable Drill Bit
The eccentric bit swings back and is reusable, saving cost and increasing efficiency.

Fast Drilling Performance
High penetration rate even in tough formations like basalt and granite.

Ideal for Soft Ground
Prevents borehole collapse in unstable or loose formations such as sand, clay, and gravel.

Clean Sampling Capabilities
Allows soil or groundwater sampling while drilling, improving data quality.

Wide Compatibility
Available in multiple sizes (ODEX90 to ODEX280), and fits most 3"–10" DTH hammers.

Applications of the ODEX System

• Water well drilling

• Geothermal energy projects

• Foundation micropiling

• Grouting for buildings, dams, and harbors

• Temporary casing in civil engineering

Components of the ODEX System

Each SUPERDRILL ODEX casing system includes:

• Guide Device

• Casing Shoe

• Eccentric Reamer Bit

• Pilot Bit

• Guide Sleeve

• Locking Kit

All parts are engineered using high-strength alloy steel and processed with strict heat treatment and CNC machining for maximum precision and service life.

Why Choose SUPERDRILL?

With extensive experience in rock drilling technology, SUPERDRILL offers:

• OEM and ODM services

• Strict quality inspection

• Global shipping support

• Technical guidance from experts

• Competitive factory prices

Order Your ODEX System from SUPERDRILL

Whether you're working in collapsing formations or need a reliable casing solution, SUPERDRILL's ODEX casing systems provide consistent performance and cost-effective operation.

Visit our contact page to get a free quote, or explore our full line of overburden drilling tools at superdrill.cn

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