Hydraulic Fitting 4120000256 is a critical hydraulic pipeline connection component exclusively designed for Hydraulic Rock Drills. It excels in harsh mining environments—for instance, underground high-pressure hydraulic systems, vibration-intensive drill pipeline layouts, and coastal quarries with salt spray corrosion.
These settings pose severe challenges for drill hydraulic fittings: extreme working pressure (up to 45MPa), intense vibration (25G) from rock drilling impact, hydraulic oil erosion, salt spray/humid corrosion, and frequent pipeline movement. These issues often cause fitting leakage, thread wear, corrosion-induced failure, or joint loosening, leading to drill hydraulic system pressure loss and costly downtime. Yet, Hydraulic Fitting 4120000256 maintains uncompromised performance under all these harsh conditions. In fact, it directly addresses five core pain points that plague mining operations.
First, its 316 stainless steel body + PTFE double-seal design achieves 45MPa high-pressure resistance and zero-leakage performance, preventing hydraulic oil waste and system pressure drop. This improves hydraulic system efficiency by 20% compared to standard single-seal fittings. Second, the precision-machined NPT/BSPP threads (±0.01mm tolerance) ensure tight meshing with pipelines, avoiding thread loosening caused by vibration. Consequently, it reduces joint failure rates by 35% in long-term use. Third, the 316 stainless steel material resists corrosion from hydraulic oil additives, salt spray, and mining slurry, passing 720-hour salt spray tests with no rust. Likewise, this extends service life in coastal or chemical-contaminated mining environments.
Fourth, the vibration-dampened PTFE sealing ring absorbs 25G vibration from drill operation, maintaining seal integrity without loosening. Above all, this ensures reliable connection even during high-intensity drilling tasks. Fifth, the wide temperature adaptability (-40°C~120°C) ensures stable performance in freezing high-altitude mines and hot underground drill hydraulic circuits. On top of that, the wear-resistant PTFE seal withstands repeated assembly/disassembly without performance degradation, facilitating maintenance.
Unlike ordinary industrial hydraulic fittings, this model is engineered for Hydraulic Rock Drills’ high-pressure and vibration-prone needs. To elaborate, the double-seal design targets mining leakage risks, while 316 stainless steel addresses corrosion—features tailored to drill operational demands. Thus, it outperforms generic fittings in service life by 160%, significantly reducing maintenance costs.
Our manufacturing team uses precision CNC threading + PTFE seal assembly + pressure testing technology for the hydraulic fitting. Furthermore, each unit undergoes pressure resistance testing (45MPa) and thread precision verification (±0.01mm). Additionally, the fitting undergoes 100,000-cycle vibration trials to ensure no leakage.
Notably, it operates stably in temperatures from -40°C (Arctic mining regions) to 120°C (drill high-temperature hydraulic pipelines). Moreover, the 316 stainless steel body endures 5,000-hour hydraulic oil immersion tests with no corrosion. In addition, the PTFE seal maintains flexibility and sealing performance for 12+ months in typical mining conditions.
The hydraulic fitting’s thread-lock design integrates seamlessly with mainstream Hydraulic Rock Drill hydraulic pipelines/hoses. It requires only standard wrenches for installation, simplifying maintenance. As a result, maintenance teams can complete replacement in 10 minutes.
Our quality team conducts strict ISO 9001 verification for every unit. We perform pressure resistance tests, leak inspections, corrosion resistance trials and thread precision verification. Importantly, it complies with ISO 8434 international hydraulic fitting standards.
Compatible with top Hydraulic Rock Drill brands, it serves as a direct OEM replacement. Thanks to its reliability, it reduces hydraulic fitting-related failure rates by 95%. Additionally, backed by a 12-month warranty, it lowers annual maintenance costs by 60%.
It not only ensures tight, leak-proof connection for drill hydraulic pipelines but also extends the service life of drill hydraulic systems by 85%. Overall, Hydraulic Fitting 4120000256 delivers cost-effective, high-performance results for long-term mining operations. Beyond that, it minimizes downtime caused by fitting failure, maximizing operational efficiency and project profitability.
