Maximize drilling efficiency with the HD612 T45 D51 710mm shank adapter. Specifically engineered for HD612 series hydraulic rock drills, this 710mm extra-long striking bar features a heavy-duty T45 thread and a massive 51mm diameter. Fully carburized for ultimate torque resistance and maximum energy transmission in heavy production mining.
Key Performance Advantages
Massive D51 Structural Rigidity: The 51mm diameter provides extreme cross-sectional strength, eliminating shank flexing and ensuring superior hole straightness under intense feed pressure.
High-Torque T45 Connection: Designed for large-diameter drill strings, the T45 thread handles massive rotational torque without thread stripping or jamming.
Synchronized 710mm Length: Precision-calibrated to match the HD612 piston stroke, ensuring perfect linear energy waves and protecting internal hammer components from harmful stress reflections.
Advanced Fatigue Life: Full-body carburization and shot peening deliver an ultra-hard surface shell (58-62 HRC) with a highly ductile, shock-absorbing core.
Primary Applications
Production Mining: Large-scale long-hole stoping and fan drilling underground.
Heavy Tunnelling: Rapid face development and umbrella arch systems in hard rock.
Bench Drilling: High-penetration quarrying and civil foundation excavation.
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