Maximize your high-frequency drilling output with the HL550S T38 D45 500 shank adapter. Precision-engineered for HL550S series hydraulic rock drills, this 500mm striking bar features a heavy-duty T38 thread and a reinforced 45mm diameter. Fully carburized for superior fatigue resistance and optimized energy wave transmission in demanding hard rock mining.
Key Performance Advantages
Reinforced D45 Body Rigidity: The 45mm diameter provides a larger cross-sectional area compared to standard 38mm shanks, drastically reducing flexing and deflection under high feed pressures.
High-Torque T38 Threading: Tailored for heavy production drill strings, the T38 thread distributes rotational force evenly, preventing thread stripping or jamming in fractured ground.
Premium Fatigue Life: Full-body carburization and shot peening create an ultra-hard surface shell to withstand front-head bushing friction, backed by a ductile, shock-absorbing core.
Primary Applications
Underground Production Mining: High-efficiency long-hole stoping and fan drilling.
Heavy Tunnelling & Drifting: Rapid face development and complex umbrella arch support systems in hard rock.
Bench Drilling: High-penetration blasting for civil engineering excavation and quarrying.
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