Half-stroke Advance Rotary Valve Core C1200042661 is a critical hydraulic control component exclusively designed for Hydraulic Rock Drills. It excels in harsh mining environments—for instance, underground hard rock mines, high-altitude quarries, tunnel construction sites and vibration-intensive drilling areas.
These settings pose unique challenges for rotary valve cores: high hydraulic pressure fluctuations, frequent rotation cycles, abrasive hydraulic oil contaminants, and temperature swings. These issues often cause valve core jamming, leakage, rotation inaccuracy, or corrosion, leading to drill actuation failure and costly downtime. Yet, Half-stroke Advance Rotary Valve Core C1200042661 maintains uncompromised performance under all these harsh conditions. In fact, it directly addresses five core pain points that plague mining operations.
First, its stainless steel 316L core + PTFE sealing ring withstands 40MPa working pressure and 80MPa burst pressure. This eliminates leakage or deformation caused by pressure spikes in drill hydraulic systems. Second, the ±0.02mm rotation precision ensures accurate half-stroke advance control of drill components. Consequently, it avoids actuation deviation and improves drilling efficiency by 25% compared to standard valve cores. Third, the half-stroke advance structural design reduces movement friction by 40%. Likewise, this minimizes heat buildup and extends service life.
Fourth, the anti-corrosion coating (electroless nickel plating) resists rust and chemical erosion from contaminated hydraulic oil. Above all, this prevents valve core seizure and ensures smooth rotation for long-term use. Fifth, the wide temperature adaptability (-25°C~110°C) ensures reliable operation in cold high-altitude mines and hot underground drilling environments. On top of that, the PTFE sealing ring resists aging and hydraulic oil swelling, maintaining airtightness for 100,000 rotation cycles.
Unlike ordinary rotary valve cores, this model is engineered for Hydraulic Rock Drills’ dynamic working conditions. To elaborate, the half-stroke advance design matches the drill’s actuation requirements, while the stainless steel 316L material enhances durability in contaminated oil. Thus, it outperforms generic valve cores in service life by 150%, significantly reducing replacement-related downtime.
Our manufacturing team uses precision CNC machining + ultrasonic cleaning technology for the valve core. Furthermore, each unit undergoes 40MPa pressure testing (20 minutes) and rotation precision verification. Additionally, the valve core undergoes 100,000-cycle rotation trials to ensure no performance degradation.
Notably, it adapts to extreme temperatures from -25°C (high-altitude cold regions) to 110°C (high-load drill hydraulic systems). Moreover, it passes 400-hour salt spray tests with no corrosion or plating peeling. In addition, it endures 5,000-hour hydraulic oil immersion trials without sealing failure.
The valve core’s standard spline connection design integrates seamlessly with mainstream Hydraulic Rock Drill valve bodies. It requires no modifications to existing hydraulic control systems for installation. As a result, maintenance teams can complete replacement in 15 minutes using standard tools.
Our quality team conducts strict ISO 9001 verification for every unit. We perform pressure resistance tests, rotation precision inspections, corrosion resistance trials and sealing performance verification. Importantly, it complies with ISO 4401 international hydraulic valve component standards.
Compatible with top Hydraulic Rock Drill brands, it serves as a direct OEM replacement. Thanks to its reliability, it reduces valve core-related failure rates by 95%. Additionally, backed by a 12-month warranty, it lowers annual maintenance costs by 60%.
It not only ensures precise hydraulic control of drill actuation but also extends the service life of drill hydraulic systems by 85%. Overall, Half-stroke Advance Rotary Valve Core C1200042661 delivers cost-effective, reliable performance for long-term mining operations. Beyond that, it minimizes downtime caused by valve core failure, maximizing operational efficiency and project profitability.
