CS Unitec 48" Threaded Core Barrel – 9" diameter

CS Unitec 48" Threaded Core Barrel – 9" diameter Product Guide

The CS Unitec 48" Threaded Core Barrel with a 9" diameter is an accessory designed for deep core drilling applications in reinforced concrete and masonry. This tool addresses the challenge of extracting large-diameter core samples at significant depths, critical in structural analysis, utility installations, and demolition preparation.

This type of core barrel is typically used by attaching it to an electric, pneumatic, or hydraulic core drill rig equipped for diamond drilling. The deep barrel length allows for drilling extended holes without frequent bit changes, enhancing operational efficiency in demanding on-site conditions. Rental customers commonly employ this barrel when project specs require extracting full concrete cores for testing, creating precise openings for installation of pipes or conduit, or preparing structural elements for penetrations.

Where This Is Used

• Deep core drilling in reinforced concrete structures such as bridges, buildings, and industrial floors
• Concrete and masonry sampling for material testing and quality control
• Creating large-diameter openings for HVAC, plumbing, or electrical conduit installations

Key Details

Selection Notes

From a selection standpoint, confirming core diameter size and barrel length relative to drilling depth and hole requirements is critical. The 9" diameter barrel suits situations where moderate to large core samples are needed. Users should verify drill rig compatibility with 48" long threaded barrels and ensure the rig can handle the increased torque and load during extended core drilling. Because this barrel is designed for use with diamond core bits, matching the proper bit segment style and thickness according to material hardness and diameter helps maintain drilling efficiency and tool life.

Drill Setup Notes

When setting up, check that the threaded connections are clean and undamaged to guarantee secure assembly between the core barrel and drill rig or bit. For electric, pneumatic, or hydraulic drill rigs, verify operational parameters such as speed, torque, and feed rate suited to the 9" diameter bit and barrel length. Plan for adequate water or slurry supply to control dust and cool the bit, especially when drilling concrete and masonry. Ensure drill stand or mounting systems provide sufficient stability to accommodate the increased length and weight of a 48" barrel to prevent tool wobble and maintain straightness during drilling.