ODEX Eccentric Casing System Factory China Leading Suppliers of Drilling Bits

Looking for high-performance ODEX Eccentric Casing Systems? Our China factory provides professional drilling tools for water wells, foundation support, and anchoring. As leading suppliers, we offer durable bits for unstable soil and sand to ensure simultaneous drilling and casing efficiency.

SupplierHEJIAN YINRUH DRILL BIT MANUFACTURE CO., LTD.www.yhrockdrill.com

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About this product

Product information from the supplier.

The Eccentric Casing System (ODEX Bit) is a high-performance drilling solution engineered for efficient simultaneous drilling and casing. Designed for precision and durability, this system allows operators to install casing while drilling, which is critical for stabilizing boreholes in unstable geological conditions. By utilizing a specialized eccentric mechanism, it ensures a larger hole diameter than the casing itself, facilitating smooth insertion and optimal flushing.

Built for the demanding environments of the mining and construction industries, the ODEX system features a robust structure and a unique locking mechanism for reliable connections and effortless disassembly. With reinforced surfaces and strategically placed wear-resistant carbides on the eccentric wheel, this system maximizes tool lifespan and maintains high drilling speeds across a variety of loose material and sand layers.

Detailed Parameters

Common Models	ODEX 85 to ODEX 330	Casing Tube OD	85mm - 377mm
Bit Shank Types	DHD 3.5, DHD 340, DHD 350, DHD 360, DHD 380, NUMA 100, DHD 112, NUMA 120	Tube Thickness	9mm - 12.5mm
Reamed Diameter	117mm - 440mm	Max Guide OD	125mm - 354mm
Thread Options	API, REG, IF, NC (Customizable)	Applicable Formations	Loose material, sand, mud, and backfill layers
System Components	Casing Tube, Drill Pipe, Stabilizer, DTH Hammer, Casing Shoe	Special Features	Wear-resistant carbides, unique locking system

Key Advantages

Enhanced Wear Resistance

Equipped with high-grade carbides on the eccentric wheel back to withstand extreme abrasion.

Rapid Drilling Speed

Optimized geometry and material composition ensure faster penetration rates in loose strata.

High Stability

The simple yet robust structure minimizes vibration and maintains borehole verticality.

Reliable Locking System

A unique locking design ensures secure connections and simplifies the disassembly process.

Versatile Compatibility

Compatible with API, REG, IF, and NC threads for seamless integration with various rigs.

One-Stop Solution

Complete availability of concentric and eccentric systems to suit any geological requirement.

Product Gallery

Management Platforms

Inventory Control

Comprehensive tracking of casing tubes and drill bits for seamless supply chain management.

Precision Engineering

Strict quality control protocols for every eccentric wheel and locking component.

Technical Support

Real-time expert guidance on selecting the right ODEX model for your soil type.

Logistics Optimization

Efficient shipping for heavy-duty drilling equipment to global mining sites.

Component Modularization

Standardized parts lists for rapid replacement of shoes and stabilizers.

Performance Monitoring

Analyzing penetration rates to optimize drilling parameters for maximum ROI.

Investment Return Comparison

Metric	Standard Casing	Eccentric (ODEX) System
Drilling Speed	Moderate	High (Simultaneous)
Hole Stability	Risk of Collapse	Excellent (Immediate Casing)
Tool Lifespan	Standard	Extended (Carbide Reinforced)
Setup Time	Multi-stage Process	Single-stage Integration
Operational Cost	Higher Labor Hours	Reduced Cycle Time

Frequently Asked Questions

Q: What are the primary applications of the Eccentric Casing System?

It is primarily used in drilling through unstable formations, such as loose sand, mud layers, and backfill materials, where immediate casing is required to prevent borehole collapse.

Q: How does the ODEX system differ from concentric casing?

The eccentric system uses an off-center bit to create a larger hole than the casing diameter, whereas concentric systems typically utilize rings or claws to maintain the casing position.

Q: Can the ODEX system be used with any DTH hammer?

The system is compatible with a wide range of DTH hammers provided the thread types (API, REG, IF, NC) and shank sizes (DHD 340, 350, etc.) match.

Q: How is the wear resistance of the eccentric wheel improved?

We install specialized wear-resistant carbides on the back of the eccentric wheel and use surface-strengthened materials to extend the tool's operational life.

Q: Is the locking system difficult to operate in the field?

No, the system is specifically designed with a unique locking structure that makes the connection highly reliable while remaining easy to disassemble during tool changes.

Q: What is the maximum reamed diameter available for this system?

Depending on the model, our systems can achieve reamed diameters up to 440mm (as seen in the ODEX 330 model).