CS Unitec 48" Threaded Core Barrel – 2" diameter Product Guide

The CS Unitec 48" Threaded Core Barrel with a 2" diameter is a diamond core barrel designed to extend the reach of core drill rigs for deep drilling applications. This tool attaches to compatible core bits and drill rigs, allowing operators to bore deep holes into reinforced concrete and masonry by increasing the drill's effective length.

This type of product is commonly used in rental scenarios where deep core drilling is required and the base drill rig’s standard bit length is insufficient. Core barrels are threaded and designed to securely connect between the drill head and the core bit, enabling incremental lengthening as drilling depth increases. The barrel maintains alignment and drilling accuracy while handling rotational and axial forces from the drill rig.

Where This Is Used

• Deep concrete and masonry core drilling in structural and geotechnical projects
• Installation of plumbing, electrical conduits, and HVAC penetrations requiring long drill holes
• Applications demanding extended drill length beyond standard core bit lengths on electric, pneumatic, or hydraulic rigs

Key Details

Selection Notes

When selecting a core barrel, verify the diameter matches the core bit and drill rig being used. The 2" diameter barrel is suited for specialty drilling tasks where a narrow hole is required with extended depth. Confirm the barrel’s thread pattern matches your drill rig and core bits to ensure a secure connection during drilling. The 48" length adds significant reach, but planning for handling and support at such depths is important to maintain alignment and drilling accuracy. Consider the drill rig’s capacity to handle the combined length and torque demands of the extended barrel plus core bit.

Drill Setup Notes

Establish stable mounting and positioning for the drill rig and barrel assembly, especially for deep penetration jobs using long barrels. Ensure that the drill rig accessories, such as feed stands or rigs with adjustable heads, can accommodate the 48" barrel length without causing instability or excessive bending stresses. Use water or slurry supply as appropriate for concrete drilling to control dust and assist bit cooling. Check the tightness of the threaded connections before drilling starts and periodically during operation to prevent loosening.