T38-T38-Coupling-190mm Full-Bridge Coupling Sleeve

MAXIMUM ENERGY TRANSFER:

• Rigid Full-Bridge Structure: Unlike semi-bridge designs, the full-bridge version completely separates the rod ends with a robust middle steel wall. The hammer's percussive shockwave passes directly through the bridge, minimizing energy loss and maximizing penetration rates in hard rock.

• Superior Hole Straightness: This rigid alignment significantly reduces joint bending, preventing hole deviation during deep underground production drilling.

When encountering hard rock strata in underground drifting, energy loss at the joint can severely cripple your drilling speed. Bloom's T38-190mm full-bridge coupling sleeve is specifically developed to eliminate this problem. By creating a fully rigid connection between your T38 drill steel strings, this Dia 55mm heavy-duty sleeve ensures that the full percussive energy of your top hammer is directed straight into the rock face.

Every sleeve undergoes rigorous CNC turning and specialized shot-peening treatments to enhance fatigue limit and prevent internal thread cracking under extreme thrust. The central full-bridge profile prevents thread overlapping under heavy load, providing a robust interface that withstands high rotational twisting while maintaining an exceptionally straight drilling trajectory.

If your site is experiencing high hole deviation or energy loss, our technical team is ready to discuss how switching to Bloom's full-bridge T38 sleeves can optimize your underground tooling configuration.