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219mm Eccentric Casing System for Large Foundation Piles | MSD

219mm Eccentric Casing System for Large Foundation Piles | MSD
  • A large-diameter eccentric casing system for 219mm casing, for deep foundations
Eccentric Overburden Casing System for 219mm Casing
The definitive solution for large, cased piles. Our 219mm Eccentric Casing System, powered by a DHD360 pilot bit, ensures perfect hole integrity in the toughest ground. For your most ambitious projects. Explore the system!
Model Number: MSD-ECS-D360-219
System Type: Eccentric Overburden Casing System
Casing Outer Diameter: 219 mm (8.6")
Pilot Bit Shank: DHD360
Primary Application: Large Piling, Deep Foundations, Shafts

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  • Product Description

The Challenge: Drilling in Difficult Ground

Drilling through loose overburden like sand, gravel, or backfill often leads to collapsing holes, stuck equipment, and significant project delays. In fractured or weathered rock, borehole integrity is constantly at risk, making it nearly impossible to achieve a clean, stable hole for piling or anchoring. These challenging ground conditions demand more than just a standard drill bit—they require a complete engineered system.

Our Solution: The Innovative Eccentric Mechanism

MSD's Eccentric Casing System provides a robust and efficient solution. This innovative system consists of a pilot bit and an integrated, swing-out reamer wing. During forward drilling, the reamer swings out to enlarge the borehole, allowing the 219mm casing to advance simultaneously with the drill string. This process drills and cases the hole in a single, fast operation. Once the desired depth is reached, a slight reverse rotation retracts the reamer, allowing the entire drill bit to be retrieved, leaving the casing in place.

Key Features and Advantages

  • Fast Drilling and Casing: The aggressive design of the eccentric system allows for high penetration rates, making it one of the fastest methods for simultaneously drilling and casing a hole.

  • Fully Retrievable and Reusable: The entire pilot bit and reamer assembly can be fully retrieved from the hole upon completion, ready for use on the next borehole. This significantly reduces tooling costs per project.

  • Simple and Robust Design: With fewer moving parts, the eccentric system is exceptionally robust, reliable, and easy to use on-site, minimizing the risk of operational issues.

  • Powered by DHD360 Class Hammers: The pilot bit features a DHD360 shank, designed to handle the immense impact power of 6-inch class DTH Hammers for efficient drilling of large diameter holes.

Primary Applications

  • Large Foundation Piling: The primary application. Ideal for the largest construction and infrastructure projects, such as bridges, high-rises, and marine structures.

  • Shallow Shaft Construction: A perfect system for creating shallow shafts for elevators, ventilation, or utility access in difficult ground.

  • Specialized Geotechnical Projects: The go-to solution for complex geotechnical projects that require large, deep, and perfectly straight cased boreholes.

Technical Specifications

MSD-ECS-D360-219Eccentric Overburden Casing System

Casing Outer Diameter (OD)

219mm

Casing Inner Diameter (ID)

199mm

Casing Wall Thickness

10mm

Drilled Hole Diameter

234mm

Maximum Step Size of Stabilizer

196mm

Compatible Shank Type

COP64/DHD360/SD6/QL60

Max. Pass-Through Diameter

185mm

Weight

75.1kg

Standard & Custom-Engineered Solutions

Whether your project requires a proven tool from our standard catalog or a completely custom-engineered solution, our team of drilling experts is ready to assist. 

We excel at solving unique geological challenges and developing tools for non-standard requirements.

Contact us today to find the perfect standard bit or to begin engineering your unique tool for success!


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