The 86788106 Pressure Governor Block is the core hydraulic control module of the Montabert HC95 rock drill, acting as the "central nervous system" of the drill’s hydraulic circuit. This precision-machined manifold integrates high-pressure (HP), low-pressure (LP), rotation (ROTA), and drain (DRAIN) ports, precisely regulating fluid flow and pressure to balance percussion power and rotary torque. It ensures stable, efficient drilling performance across varying rock hardness and operating conditions.
Manufactured to Montabert’s exact OEM specifications, this governor block guarantees a seamless drop-in fit with the HC95’s hydraulic system, directly determining the drill’s power output and operational reliability. In harsh underground mining, tunneling, and quarrying environments—where dust, moisture, and extreme vibration are constant—it resists pressure fatigue, wear, and corrosion, ensuring consistent performance of your Montabert rock drill.
Key Features
Genuine Montabert Precision for Perfect HC95 Compatibility
High-Impact Durability for Mining Operations
Hydraulic Sealing & Debris Protection
Optimized Design for Maintenance Efficiency
Applications
The 86788106 Pressure Governor Block is the most critical replacement part for your Montabert rock drill in all core operational scenarios:
Regulating hydraulic pressure in Montabert HC95 rock drills during underground mining blasting hole drilling (up to 40m depth) in hard-rock formations like granite and basalt.
Balancing percussion and rotary power in Montabert HC95 rock drills used for tunnel anchor and support hole drilling in wet, dusty infrastructure construction projects.
Stabilizing hydraulic flow in Montabert HC95 rock drills during quarrying operations for stone cutting, rock excavation, and pre-splitting tasks.
Restoring factory-spec hydraulic control performance during full overhauls or hydraulic system replacement of Montabert rock drills.