CS Unitec 24" Threaded Core Barrel – 7" diameter

CS Unitec 24" Threaded Core Barrel – 7" diameter Product Guide

The CS Unitec 24" Threaded Core Barrel with a 7" diameter is a specialized drilling accessory designed to facilitate deep core drilling in reinforced concrete and masonry structures. This product addresses the challenge of extracting large diameter concrete samples or creating sizable openings with precision, particularly in industrial construction, repair, or infrastructure maintenance scenarios.

This type of core barrel is commonly used in conjunction with electric, pneumatic, or hydraulic core drilling rigs. The threaded design allows it to be securely attached to compatible drill rigs and threaded diamond core bits, enabling the operator to perform deep drilling operations efficiently. Its 24" length supports extended drilling depth, while the 7" diameter is suited for moderate to large core sizes. Rental customers using this core barrel often pair it with rigs that match the diameter and length specifications, ensuring optimal performance and compatibility.

Where This Is Used

• Deep drilling in reinforced concrete for structural sampling or modifications
• Construction and demolition projects requiring precise core extraction
• Masonry wall penetrations for mechanical, electrical, or plumbing installations

Key Details

Selection Notes

When selecting a core barrel of this size, consider the depth of core drilling required and the drill rig’s capacity. The 7" diameter is effective for moderate to large core holes in reinforced concrete and masonries, but verifying compatibility with existing drill bits and rigs is essential to prevent thread mismatches or attachment issues. The 24" barrel length allows for extended drilling depths without changing the barrel frequently, which is useful for maintaining job efficiency. Checking the segment size on the bits (.250" diamond segments for this diameter range) ensures effective cutting and longevity in demanding material conditions.

Drill Setup Notes

Prior to operation, confirm that the threaded connection between the core barrel, bit, and drill rig is secure and free of damage or wear. Proper thread engagement is crucial for torque transfer during drilling and to avoid loosening under load. Consider the drill rig’s power source compatibility (electric, hydraulic, or pneumatic) to ensure the barrel performs as expected. Also, plan for water or slurry control at the drilling site to manage dust and cooling, especially for longer drilling depths. After drilling, clean the core barrel to remove slurry and debris and inspect for segment wear or damage before subsequent use.