Cylinder Pin C0430011251 is a critical connecting and load-transmitting component for Hydraulic Rock Drills. It excels in extreme mining environments—for instance, deep underground ore mines, high-altitude hard rock quarries and large-scale tunnel boring projects.
These settings pose intense vibration (up to 40G), abrasive rock dust, acidic slurry and drastic temperature swings. Yet, Cylinder Pin C0430011251 maintains uncompromised performance under all these harsh conditions. In fact, it directly addresses five core pain points that plague mining operations.
First, its 42CrNi2MoA steel core with nitriding treatment boosts surface hardness. This eliminates premature wear from cylinder piston friction. Second, it withstands 45MPa axial load without deformation or fracture. Consequently, it prevents hydraulic cylinder connection failure in high-pressure systems. Third, its ±0.002mm precision ensures tight fitting with cylinder bores. Likewise, this avoids oil leakage and pressure loss during operation.
Fourth, the double-groove anti-loosening design locks the pin in place. Above all, this prevents vibration-induced disassembly during high-intensity drilling cycles. Fifth, the multi-layer anti-corrosion coating (titanium plating + passivation) enhances durability. On top of that, it resists chemical erosion from hydraulic oil and acidic mining environments.
Unlike ordinary cylinder pins, this model combines high-toughness steel with precision machining. To elaborate, the 42CrNi2MoA steel provides impact resistance, while nitriding treatment delivers extreme surface wear resistance. Thus, it outperforms standard pins in service life by 95%.
Our manufacturing team uses precision turning + grinding technology for consistent dimensions. Furthermore, the surface undergoes nitriding treatment, boosting hardness to HRC 65-68. Additionally, the dimensional accuracy test ensures no deviation under extreme temperature changes.
Notably, it adapts to extreme temperatures from -85°C to 200°C. Moreover, it passes 280-hour salt spray tests with no rust or coating damage. In addition, it endures 550,000-cycle fatigue trials without performance degradation.
The pin’s press-fit + double-groove design integrates seamlessly with mainstream drill models. It requires no modifications to existing hydraulic cylinder assemblies. As a result, maintenance teams can complete installation in 5 minutes using standard tools.
Our quality team conducts strict ISO 9001 verification for every unit. We perform load-bearing tests, oil leakage inspections, dimensional accuracy checks and anti-loosening trials. Importantly, it complies with ISO 8753-2 international mining equipment standards.
Compatible with top Hydraulic Rock Drill brands, it serves as a direct OEM replacement. Thanks to its durability, it reduces replacement frequency by 85%. Additionally, backed by a 12-month warranty, it cuts cylinder pin-related failure rates by 90%.
It not only extends drill system service life by 75% but also lowers annual maintenance costs by 52%. Overall, Cylinder Pin C0430011251 delivers cost-effective, reliable performance for long-term mining operations. Beyond that, it supports high-intensity drilling tasks in the most demanding conditions, maximizing operational efficiency.
