CS Unitec 36" Threaded Core Barrel – 2" diameter Product Guide

The CS Unitec 36" Threaded Core Barrel with a 2" diameter is a specialized drilling accessory designed to extend the reach of core bits for deep drilling applications. It solves the common job-site challenge of accessing and drilling through thick reinforced concrete or masonry by providing a reliable threaded extension between the drill rig and the core bit.

This type of core barrel is commonly used in construction, concrete repair, and utility installation where precise, deep-core holes are needed. It provides a secure, threaded connection that maintains alignment and stability when paired with electric, pneumatic, or hydraulic drilling rigs. Rental users should consider this barrel when the drilling depth exceeds standard bit lengths, requiring a threaded extension to reach the full drilling depth while maintaining a straight, controlled cut.

Where This Is Used

• Reinforced concrete and masonry deep core drilling
• Infrastructure projects involving extensive concrete removal or sampling
• Installation of utilities, anchors, or conduits through thick concrete structures

Key Details

Selection Notes

From a selection standpoint, the deciding factor when choosing this core barrel is the required drilling depth relative to the available core bit length. This 36" barrel is intended to be used with 2" diameter bits and should be matched carefully to the drilling rig’s capabilities and bit size to maintain tool stability and drilling efficiency. Verify that the threading on both the barrel and bit are compatible and in good condition to avoid slippage or misalignment during drilling. Users should also confirm that the rig provides sufficient torque and power output for extended deep drilling setups. When drilling through reinforced concrete, selecting the correct segment type and size within the core bit, compatible with this barrel, will impact performance.

Threaded Core Barrel Setup Notes

Proper setup and compatibility checks are essential to using the CS Unitec 36" Threaded Core Barrel effectively. Before starting the job, inspect threads on the barrel and core bit for wear or damage to ensure a tight, secure fit. Confirm that the rig’s chuck or mandrel is compatible with a 2" diameter core barrel system. When installing, hand-tighten the barrel and bit first, then use appropriate tools to avoid over-tightening which may damage threads. The length of this barrel allows for deeper hole drilling but requires stable rig mounting and steady feed pressure to prevent bending or wobbling. After the job, clean the threading and barrel interior to remove slurry and debris to maintain smooth connections on subsequent jobs.