High-Pressure Boom Control Valve for Rock Drill Jumbos This 350 bar-rated proportional control valve is engineered to deliver precise motion control for rock drill jumbo booms in harsh mining environments. Its robust design ensures resistance to vibration and abrasion, making it ideal for continuous-duty applications requiring rapid and repeatable movements .
Technical Specifications & Design
Hydraulic Performance:
Operates at pressures up to 350 bar (5075 psi) with 120 L/min flow capacity, compatible with high-torque hydraulic systems .
Proportional pilot-operated spool design provides ±1% pressure control accuracy, critical for maintaining consistent drilling angles .
Material & Construction:
Cast steel housing (EN-GJL-250) with nitrile rubber seals (ISO 16232-7) ensures 10 million cycle lifespan under heavy loads .
SAE J518 threaded ports (1-1/4″) and ISO 6162-1 mounting pattern simplify integration with global mining equipment standards .
Safety & Reliability:
Automatic overpressure shutoff at 379 bar (5500 psi) prevents system damage during hydraulic surges .
Electronic control unit (ECU) with CANbus communication enables real-time monitoring and diagnostics .
Performance Advantages
Precision Control:
Position feedback sensor (±0.5% accuracy) ensures smooth and repeatable boom movements, reducing operator fatigue .
Environmental Adaptability:
Operates reliably from -20°C to +50°C with 95% humidity resistance, suitable for both underground mines and outdoor construction sites .
Low Maintenance:
Self-lubricating bearings and modular design reduce service intervals to 500 hours, minimizing downtime .
Applications
Rock Drill Jumbos: Controls boom extension/retraction, rotation, and tilting for precise drilling.
Mining Equipment: Compatible with loaders, crushers, and tunneling machines requiring high-pressure hydraulic systems.
Industrial Machinery: Ideal for material handling systems in abrasive environments.
