Pin Shaft JR020201 is a critical precision connection component for Hydraulic Rock Drills. It is engineered for heavy-duty mining structural pivot systems. For instance, it connects arm joints in underground drill feed mechanisms. Additionally, it pivots bracket linkages in open-pit drill boom assemblies.
Mining environments pose severe challenges for drill pin shafts. First, dynamic load and vibration cause shear fatigue and structural loosening. Second, continuous pivot friction leads to surface wear and fit clearance loss. Third, mining slurry and humid air trigger corrosion and rusting. Fourth, extreme temperature swings weaken material toughness and hardness. Fifth, misalignment during assembly accelerates abrasion and failure risks.
These issues often lead to pin shaft malfunction. For example, a worn pin causes joint play and drill positioning errors. As a result, costly downtime and operational inefficiency occur. Yet, Pin Shaft JR020201 solves these pain points with robust design.
First, its high-strength 40Cr alloy steel base delivers exceptional shear resistance. Moreover, it achieves 150kN maximum shear strength without deformation. This outperforms standard carbon steel pins by 120%. Consequently, structural stability improves significantly.
Second, the quenched & tempered surface treatment achieves HRC 55-59 hardness. Notably, it provides superior wear resistance against pivot friction. This prevents diameter reduction and fit looseness. As a result, service life extends by 200% vs. standard pin shafts.
Third, the anti-corrosion zinc plating + passivation offers 800-hour salt spray resistance. This outperforms uncoated alloy steel pins by 60%. Furthermore, it repels mining slurry and rust formation. This avoids surface pitting and structural weakening.
Fourth, the precision-machined straightness and chamfered ends ensure easy assembly. Importantly, it maintains tight fit and load transmission under 40G drill vibration. This eliminates shear failure and misalignment risks. This enhances overall structural reliability.
Fifth, the 40Cr alloy steel pin tolerates extreme temperatures (-40°C~110°C). On top of that, it retains toughness and hardness in all conditions. This eliminates brittleness or softening risks in harsh mines.
Unlike generic industrial pin shafts, this model is purpose-built for drills. Specifically, the high-shear-strength design targets dynamic load transmission demands. Additionally, the quenched wear-resistant surface addresses pivot friction wear. These features align with real mining demands. As a result, it outperforms standard pins by 180% in service life. This cuts replacement costs and unplanned downtime.
Our manufacturing process uses CNC precision turning and heat treatment. Furthermore, it involves shear strength testing and dimensional verification. Each unit undergoes 150kN shear trials and ±0.005mm precision checks. Notably, no performance degradation is allowed before shipment.
The pin shaft operates reliably in all extreme mining conditions. Moreover, the 40Cr steel body endures 8,000-cycle fatigue tests. No cracking or shear damage occurs during this period. Additionally, the zinc-plated surface remains intact for 24+ months.
The press-fit installation design integrates seamlessly with drill components. It requires only standard hydraulic press tools for fitting. Consequently, maintenance teams complete replacement in 8 minutes. This minimizes operational downtime.
Our quality team conducts strict ISO 9001 verification for every unit. For example, tests include shear strength checks, wear resistance trials and corrosion tests. Diameter precision is also verified. Importantly, it complies with mining mechanical safety standards and ISO 898 fastener specifications.
It is a direct OEM replacement for top Hydraulic Rock Drill brands. Furthermore, its reliability reduces pin shaft-related failure rates by 97%. Backed by a 12-month warranty, it lowers annual maintenance costs by 65%.
It ensures stable connection and dynamic load transmission of drill components. Additionally, it extends the service life of mating joints and linkages by 85%. Overall, it delivers cost-effective, industrial-grade reliability. It minimizes downtime from pin shaft failure. As a result, this maximizes operational efficiency and project profitability.
