CS Unitec 36" Threaded Core Barrel – 2-1/4" diameter

CS Unitec 36" Threaded Core Barrel – 2-1/4" diameter Product Guide

The CS Unitec 36" Threaded Core Barrel with a 2-1/4" diameter is a specialized drilling accessory designed to extend the reach for core drilling applications. It addresses the challenge of deep drilling through reinforced concrete, masonry, and similar materials where longer drilling depths are required beyond the reach of standard core bits.

This type of threaded core barrel is typically used in the field as an extension for electric, pneumatic, or hydraulic core drill rigs. When attached, it allows operators to drill deeper holes by connecting multiple barrels and bits in sequence via the threaded ends. This approach suits applications like concrete testing, plumbing or mechanical system penetrations, and other structural or utility installations requiring precise cylindrical holes through dense materials.

Where This Is Used

• Core drilling in reinforced concrete for construction and renovation projects
• Deeper drilling requirements in masonry walls or structural slabs
• Drilling penetrations for pipe, conduit, or cable installations in industrial or commercial buildings

Key Details

Selection Notes

From a selection standpoint, the deciding factor is drilling depth relative to the core bit length and rig capability. This 36" barrel is chosen when the drilling target is beyond standard core bit lengths, and multiple barrels can be connected if deeper holes are needed. Confirm that the diameter matches the bit and drill system in use to ensure proper fit and optimal drilling performance. Also consider the material being drilled; reinforced concrete and hard masonry require appropriate diamond segments on bits to maximize durability and cutting efficiency.

Drill Setup Notes

Proper assembly involves securely threading the core barrel onto the drill bit and then attaching the assembly to the core drilling rig. Due to the length of the barrel, verify the rig’s torque and power ratings to handle the extended setup safely. Before starting, check alignment to avoid barrel wobble and uneven wear on the bit segments. During operation, consider water management to reduce dust and flush debris, preserving bit condition and drilling accuracy. After use, inspect threading for damage or wear to maintain secure fitment for future jobs.