3GEN Export

DOUBLE WALL CASING

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$10.000,00

10 in stock

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Product Description

DOUBLE WALL CASING – Heavy-Duty Foundation Drilling Casing for Maximum Bore Stability

In the world of bored pile foundations, precision and structural integrity are everything. The Double Wall Casing (Bored Pile Machine Spare Parts) is engineered to deliver both. Designed for rotary drilling systems that demand high resistance to pressure and lateral forces, this casing ensures clean boreholes, stabilized walls, and safe excavation—no matter the ground conditions.

As part of 3GEN Export’s OEM-compatible range, the Double Wall Casing meets the highest industrial standards and is compatible with leading bored piling machines, including BAUER, LIEBHERR, SOILMEC, SANY, and XCMG. Produced in Türkiye, trusted worldwide.


Product Overview

The Double Wall Casing is a robust tubular segment designed to protect the borehole walls during drilling operations, especially in unstable or loose soil layers. Unlike single wall systems, the double wall design enhances torsional strength and alignment, making it ideal for deep foundation projects where soil collapse or water ingress are potential risks.

The casing consists of two concentric steel tubes:

  • Outer tube for structural rigidity

  • Inner tube for alignment and reinforcement

The interface ring connects the segments securely with high-grade bolts and inserts, ensuring leak-proof and torque-resistant assembly.


Hole & Bolt Configuration

 
D1/D2 (mm) Hole Count Bolt Type & Quantity
620/540 8 8 pcs / Type I
730/650 10 10 pcs / Type I
750/670 10 10 pcs / Type I
880/800 10 10 pcs / Type I
1000/920 10 10 pcs / Type I
1080/1000 10 10 pcs / Type I
1180/1100 12 12 pcs / Type I
1200/1120 12 12 pcs / Type I
1280/1200 12 12 pcs / Type I
1300/1220 12 12 pcs / Type I
1500/1400 12 12 pcs / Type II
1800/1700 16 16 pcs / Type II
2000/1880 12 12 pcs / Type III
2200/2080 12 12 pcs / Type III

This range provides excellent flexibility across different drilling diameters, ensuring a secure, repeatable connection system even under extreme torque and downhole vibration.


Key Features

  • Double Wall Structure: Reinforces pipe strength while minimizing deformation and deflection at deeper drilling depths.

  • Threadless Connection: Bolt-based joint system reduces stress risers and is easier to replace on-site.

  • Seamless Internal Flow: Smooth inner casing ensures unobstructed passage for drilling fluid and tooling.

  • Corrosion-Resistant Coating: External yellow powder-coat protects from weathering and rust in aggressive soil or marine conditions.

  • Custom Machining Available: Casing shoes and drive adapters can be added for rig-specific requirements.


Compatible Models

The Double Wall Casing is compatible with a wide range of bored pile machines, including:

  • BAUER: BG 18, BG 28, BG 36, BG 40

  • LIEBHERR: LB 20, LB 28, LB 36

  • SOILMEC: SR-40, SR-65, SR-95

  • SANY: SR205, SR250, SR360

  • XCMG: XR180D, XR280D, XR400D

Whether for high-rise foundations, bridges, or large-scale public infrastructure, this casing system integrates seamlessly into your drill string.


Advantages at a Glance

  • High Axial Load Resistance: Withstands weight of overlying drill tools and reinforcement bars without collapsing.

  • Stable in Deep Boring: Reduces risk of hole wall collapse, even at depths exceeding 30 meters.

  • Quick Assembly/Disassembly: Bolted connections reduce rig time and eliminate threading issues.

  • Reusable & Cost-Effective: Designed for extended service life across multiple jobs.

  • Compatible with Rotary Drive Units: Easily locks into rotary table with appropriate casing drive adaptor.


Applications

  • Deep bored pile foundations

  • Pile drilling in soft clay, sand, or gravel

  • Underwater foundation works

  • High-rise and commercial structure basing

  • Wind turbine support foundations

From urban metro works to remote wind farms, the Double Wall Casing is a universal solution for borehole protection and drill control.


Manufacturing Excellence by 3GEN Export

  • Made in Türkiye: Precision-engineered under strict quality standards using European-grade raw materials.

  • Global Reach: Delivered to your site in 5 working days, no matter where your next project is.

  • OEM-Compliant: Guaranteed compatibility with all major bored piling rigs.

  • Technical Support: CAD drawings, bolt kits, and adaptors included upon request.


Best Practices for Use & Maintenance

  • Inspect bolt holes for damage prior to assembly.

  • Use anti-seize lubricant on inserts to prolong thread life.

  • Store segments vertically when possible to avoid ovality.

  • Apply rust protection post-operation in marine or wet environments.

  • Replace worn locking rings to prevent rotation under torque.


Conclusion

Built to last, engineered to perform — the Double Wall Casing is an essential element for any contractor looking to guarantee borehole quality, structural alignment, and on-site efficiency. Whether your challenge is soft ground, deep drilling, or high-pressure rotary drive, this casing has what it takes to deliver.

Let 3GEN Export support your foundation project with reliable, globally shipped, OEM-compatible parts.

Manufactured in Turkey, these products are made using the latest technologies and built to meet the highest international standards. Each machine is a high-quality copy of the original, ensuring durability, precision, and performance that you can rely on for modern construction and metalworking projects.
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