CS Unitec 48" Threaded Core Barrel – 6" diameter Product Guide

The CS Unitec 48" Threaded Core Barrel with a 6" diameter is a specialized core drilling accessory designed for deep drilling applications in reinforced concrete and masonry. This product allows for the extension of core bits to achieve deeper penetration in hard materials, solving the problem of limited drill depth in single-barrel cores.

Threaded core barrels like this one are typically used with electric, pneumatic, or hydraulic drilling rigs where drilling beyond the standard bit length is required. The threaded connection ensures a secure and stable extension to the core bit, facilitating precise and effective drilling. Operators use these barrels when drilling cores for concrete testing, utility penetrations, or sleeve installations where extended depth holes are necessary.

Where This Is Used

• Deep core drilling in reinforced concrete structures such as walls, floors, and columns
• Masonry drilling for installing anchors, pipes, or sleeves beyond standard bit depth
• Industrial or construction sites requiring extended reach core drilling with hydraulic, pneumatic, or electric rigs

Key Details

Selection Notes

When selecting a core barrel extension, confirm that the diameter matches the core bit and rig capacity to avoid misfits or instability during drilling. The 6" diameter is suitable for medium-sized core bits; ensure the drilling rig can handle the torque and depth associated with a 48" barrel extension. Consider the drilling method and rig power source to confirm compatibility with hydraulic, pneumatic, or electric cores. Evaluate site conditions including access, space for rig setup, and water supply needed for slurry management. The choice of bit segment size depends on material hardness, with typical thickness around .187" for bits up to 6-1/2" diameter.

Drill Setup Notes

Properly thread the barrel extension onto compatible core bits and verify secure attachment before operation to prevent loosening during use. Ensure the drilling rig stand or mount can support the extended length and additional torque from the 48" barrel. Plan for water feed at the drill face to handle slurry generated during drilling, facilitating bit cooling and core removal. Check that hose or air-line routing does not impede operator movement and avoids sharp bends that could reduce flow or cause wear. After use, clean slurry and debris from the barrel threads and drill components to maintain functionality and prevent corrosion or binding.