Rock Breaker Store

Prevent leaks and maintain peak power in your Rammer 5011 breaker with the 170948 Seal Set. Essential for MERIT in Reliability and Efficiency. Shop quality.

The Seal Set (or Service Kit, Part Number 170948) for the Rammer 5011 hydraulic breaker is a collection of various elastomeric and PTFE seals, O-rings, and specialized rings required to replace all dynamic and static seals within the power cell. These seals are the critical barrier that maintains hydraulic pressure integrity and prevents contamination between internal components. Since seals operate under extreme pressure, high temperatures, and continuous friction, they are regular replacement items.

The acronym MERIT (Maintenance, Endurance, Reliability, Integrity, Tool Life) directly defines the value of a quality seal kit:

• Maintenance: The seal set is the heart of routine Maintenance. Replacing seals at the recommended interval prevents fluid leaks and costly internal damage caused by pressure loss or contamination, ensuring proactive equipment care.
• Endurance: High-quality seals are manufactured from specific compounds (like NBR or FKM) chosen for their exceptional Endurance against abrasive hydraulic fluid, heat, and the intense mechanical cycling within the breaker. Inferior seals quickly fail, leading to downtime.
• Reliability: The seals ensure the Piston’s chambers achieve and hold the necessary pressure for the percussion cycle. Intact seals guarantee the consistent Reliability and full force of the impact blow, preventing the hammer from “gassing out” or failing to cycle.
• Integrity: Seals maintain the hydraulic Integrity of the system. They separate high-pressure areas from low-pressure areas and protect the precision-machined surfaces of the Piston and Cylinder from scoring. Leaking seals compromise the entire circuit, causing overheating and loss of power.
• Tool Life: While not directly striking the tool, effective seals are vital for maintaining the hammer’s designed stroke and impact energy. By ensuring maximum hydraulic power is delivered, the seal kit indirectly supports high performance and maximized Tool Life.

A genuine or high-quality OEM-equivalent Rammer 5011 Seal Set (170948) is the most cost-effective way to restore the full operational MERIT and power efficiency of your hydraulic breaker.