Anti-jamming Caliper Valve Core C1200042681 is a critical safety control component exclusively designed for Hydraulic Rock Drills. It excels in harsh mining environments—for instance, underground hard rock mines with contaminated hydraulic oil, high-vibration tunneling sites, and coastal quarries with salt spray corrosion.
These settings pose severe challenges for drill caliper valve cores: hydraulic oil contamination (metal particles), intense vibration (up to 35G), pressure fluctuations, temperature extremes, and friction-induced wear. These issues often cause valve core jamming, actuation delay, corrosion, or structural failure, leading to drill caliper malfunction and safety hazards. Yet, Anti-jamming Caliper Valve Core C1200042681 maintains uncompromised performance under all these harsh conditions. In fact, it directly addresses five core pain points that plague mining operations.
First, its patented anti-jamming spiral groove design disrupts hydraulic oil turbulence and prevents particle accumulation around the valve core, eliminating jamming risks even in 95% contaminated oil. This improves caliper response speed by 30% compared to standard valve cores. Second, the stainless steel 316L base + tungsten carbide coating achieves HRC 65-68 hardness, resisting wear from metal particles and hydraulic friction. Consequently, it extends service life by 160% and reduces replacement frequency. Third, the ±0.005mm dimensional precision ensures tight fit with caliper valve bodies, avoiding oil leakage and ensuring precise pressure control (35MPa working pressure). Likewise, this stabilizes drill braking/locking functions and enhances operational safety.
Fourth, the stainless steel 316L material resists salt spray and acidic hydraulic oil corrosion, passing 600-hour salt spray tests without rust or degradation. Above all, this ensures reliability in coastal mining environments or mines with chemical contaminants. Fifth, the wide temperature adaptability (-40°C~120°C) ensures consistent performance in freezing high-altitude mines and hot underground drill hydraulic systems. On top of that, the optimized flow channel design reduces pressure loss by 15%, maintaining stable caliper actuation even during peak drill operation.
Unlike ordinary caliper valve cores, this model is engineered for Hydraulic Rock Drills’ anti-jamming needs. To elaborate, the spiral groove design targets particle-induced jamming, while tungsten carbide coating addresses wear—features tailored to mining hydraulic system contamination. Thus, it outperforms generic valve cores in service life by 170%, significantly reducing maintenance costs and safety risks.
Our manufacturing team uses precision CNC grinding + plasma spraying technology for the valve core. Furthermore, each unit undergoes anti-jamming testing (contaminated oil simulation) and dimensional verification (±0.005mm). Additionally, the core undergoes 100,000-cycle actuation trials to ensure no performance degradation.
Notably, it operates stably in temperatures from -40°C (Arctic mining regions) to 120°C (drill caliper hydraulic systems). Moreover, the tungsten carbide coating endures 5,000-hour friction trials without excessive wear. In addition, the stainless steel base resists corrosion from all common mining hydraulic oil additives.
The valve core’s spline connection design integrates seamlessly with mainstream Hydraulic Rock Drill caliper valve assemblies. It requires no modifications to existing valves for installation. As a result, maintenance teams can complete replacement in 20 minutes using standard tools.
Our quality team conducts strict ISO 9001 verification for every unit. We perform anti-jamming tests, precision inspections, hardness trials and pressure loss analysis. Importantly, it complies with ISO 4401 international hydraulic valve component standards and mining safety certifications.
Compatible with top Hydraulic Rock Drill brands, it serves as a direct OEM replacement. Thanks to its reliability, it reduces caliper 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 anti-jamming caliper control for drill safety systems but also extends the service life of drill caliper valves by 90%. Overall, Anti-jamming Caliper Valve Core C1200042681 delivers cost-effective, safety-focused performance for long-term mining operations. Beyond that, it minimizes downtime and safety hazards caused by valve core failure, maximizing operational efficiency and worker protection.
