The 86747110 Hydraulic Stop Piston is a precision-engineered control component at the core of the Montabert HC95 hydraulic drifter, responsible for limiting the impact piston’s stroke and preventing over-travel. It regulates the impact mechanism’s cycle, ensuring consistent percussion power while protecting the drifter’s internal components from damage.

Manufactured to Montabert’s exact OEM specifications, this stop piston guarantees a seamless drop-in fit with the HC95’s cylinder assembly, preserving impact performance and operational stability. In harsh underground mining, tunneling, and quarrying environments—where dust, moisture, and continuous operation are constant—it resists wear, fatigue, and hydraulic pressure stress, ensuring reliable performance of your Montabert rock drill.

• Genuine Montabert Precision for Perfect HC95 Compatibility
• High-Impact Durability for Mining Operations
• Hydraulic Sealing & Debris Protection
• Optimized Design for Maintenance Efficiency

The 86747110 Hydraulic Stop Piston is an indispensable replacement part for your Montabert rock drill in all core operational scenarios:

• Regulating impact piston stroke in Montabert HC95 rock drills during underground mining blasting hole drilling (up to 40m depth) in hard-rock formations like granite and basalt.
• Protecting the front assembly in Montabert HC95 rock drills used for tunnel anchor and support hole drilling in wet, dusty infrastructure construction projects.
• Maintaining consistent impact power in Montabert HC95 rock drills during quarrying operations for stone cutting, rock excavation, and pre-splitting tasks.
• Restoring factory-spec stroke control performance during full overhauls or impact system replacement of Montabert rock drills.