CS Unitec 12" Threaded Core Barrel – 9" diameter Product Guide

The CS Unitec 12" threaded core barrel is an accessory designed for deep drilling applications requiring core sampling or hole creation in reinforced concrete and masonry. It functions as a mounting and cutting extension to compatible core drill rigs, solving the challenge of drilling deeper or larger diameter holes with stability and effective segment wear.

This type of core barrel is commonly used in the field with electric, pneumatic, or hydraulic core drill rigs to extend drilling depth while maintaining bit alignment and cutting efficiency. The threaded design allows quick attachment to corresponding drill bits and rods. In rental use, selecting the correct diameter and length of core barrel ensures compatibility with the drill rig and material to be cut, supporting consistent drilling progress and segment life.

Where This Is Used

• Deep core drilling in reinforced concrete for structural testing or utility installation
• Masonry drilling in walls and foundations requiring precise hole size and depth control
• Support for electric, pneumatic, or hydraulic drill rigs in industrial, construction, and infrastructure projects

Key Details

Selection Notes

When selecting a core barrel, the diameter must match the intended core bit and drilling hole size. The 9" diameter is suitable for medium to large core applications. Confirm that the threading and segment specifications align with the drill rig and bit being used. Segment thickness for this size typically offers a balance between cutting speed and segment durability. The 12" length allows deeper drilling beyond standard bit lengths but requires consideration of mounting stability and drill rig capacity to handle extended tooling.

Drill Setup Notes

Verify that the drill rig supports the attachment of threaded core barrels at this diameter and length. Proper connection and secure threading prevent wobble and help maintain drill alignment. Planning for water or slurry control at the drilling point is important to manage dust and debris as the core barrel drills through concrete or masonry. Slurry flow should be directed away from the operator and clear of the workspace to maintain visibility and reduce cleanup time. Inspect thread connections and segment condition before and after each use to ensure reliable performance.