Hydraulic Stop Piston Sleeve 86334109 for Montabert HC50 Rock Drill

The hydraulic stop piston sleeve (part number 86334109) is an important internal component used in the Montabert HC50 rock drill. It is installed in the hydraulic section of the drill and works together with the stop piston to ensure stable movement, proper alignment, and reliable operation during high-frequency drilling.

This sleeve helps guide the piston smoothly inside the housing while reducing friction and protecting surrounding components from excessive wear. It also helps maintain stable hydraulic performance, which is important for keeping the drill running efficiently under heavy working conditions.

Made from high-strength alloy steel, the part is heat-treated for better hardness and wear resistance. It is designed to handle continuous vibration, hydraulic pressure, and impact loads commonly found in mining, quarrying, and tunneling jobs.

Product Details

• Part Number: 86334109
• Machine Model: Montabert HC50
• Product Name: Hydraulic Stop Piston Sleeve
• Material: High-strength alloy steel
• Condition: New replacement part
• Application Area: Hydraulic impact system

Main Features

• Precision-machined for accurate fit and smooth piston movement
• Good wear resistance under high-pressure working conditions
• Helps reduce vibration and internal component wear
• Stable performance during long working hours
• Strong alloy steel structure for longer service life

Applications

This part is widely used in:

• Underground mining
• Quarry drilling
• Tunneling projects
• Construction rock drilling

It is suitable for heavy-duty drilling environments where the rock drill works continuously under high impact and hydraulic pressure.

From Our Experience

The hydraulic stop piston sleeve is not usually the first part to fail, but once it becomes worn, it can affect piston movement and hydraulic stability inside the drill. In some cases, it may also cause abnormal wear on nearby parts. Regular inspection and replacement at the right time can help reduce downtime and keep the drill working properly.

Why Choose a Quality Sleeve

A good-quality sleeve means:

• Better piston protection
• More stable drilling performance
• Lower maintenance cost
• Longer service life for the rock drill

For contractors and drilling companies, using reliable replacement parts helps improve working efficiency and avoid unnecessary breakdowns on site.