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Maximizing the Efficiency of Hydraulic Breakers: Guidelines and Maintenance

Release time: 2024-02-25

Maximizing the Efficiency of Hydraulic Breakers: Guidelines and Maintenance

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Understanding Hydraulic Breakers

Hydraulic breakers are pivotal tools in the earth moving and mining industries, designed to efficiently break rock and concrete blocks of varying hardness. Their versatile applications encompass demolition, initial excavation, trench digging, and secondary rock crushing tasks. Hydraulic breakers come in various sizes and configurations, catering to different project requirements and types of excavators they are attached to.

Types of Hydraulic Breakers

  1. Small Breakers: Primarily used for digging, roadworks, and residential demolition projects.
  2. Medium-sized Breakers: Suited for urban excavations, secondary quarrying, and demolition of buildings.
  3. Large Breakers: Employed in major demolitions, primary quarrying, and excavation for foundations, tunnels, and railway projects.

Components and Operation

Hydraulic breakers comprise a breaker unit enclosed within a casing equipped with shock-absorbing and vibration-damping systems. The breaker unit typically includes a piston (or striking hammer), a distributor, and a tool (commonly referred to as a 'moil' or 'chisel' point). The breaker unit may be constructed as a single part (monoblock) or as multiple parts secured together with tie rods.

The hydraulic breaker is connected to the hydraulic system of an excavator, where high-pressure hydraulic fluid or low-pressure nitrogen drives the striking head. This energy generated by the thrust is then transferred violently to the top of the tool, effectively breaking the rock or concrete material.

Proper Usage Recommendations

  1. Perpendicular Operation: It is essential to operate hydraulic breakers perpendicular to the surface of the material being demolished while maintaining the correct operating pressure level.
  2. Avoid Idle Hammering: Idle strokes should be avoided, as they can cause premature wear and breakage of the tool retainer pin.
  3. Limit Heavy Mass Movement: Hydraulic breakers should not be used to move heavy masses with the point or casing.
  4. Limit Impact Time: To prevent overheating of the hydraulic fluid and the risk of piston seizing, hydraulic breakers should not impact the same point for more than 30 seconds.
  5. Water Submersion Caution: Hydraulic breakers should not be submerged beyond the extension of the tool. If underwater work is necessary, consult the nearest authorized assistance center for appropriate underwater fittings.

Routine Maintenance Procedures

  1. Regular Greasing: The tool (or tip) of the hydraulic breaker should be greased regularly, ideally every 2 hours of work.
  2. Inspect Components: Shock absorbers, tie rods (if present), tool retention pins, and fixing bolts of the adaptor plate should be checked at the beginning and end of each work shift.
  3. Check for Leaks: Ensure there are no hydraulic fluid leaks along hoses, connectors, or the tool.
  4. Inspect the Breaker: Regularly inspect the breaker for any weld failures or cracks in the casing, adaptor plate, and tool.

By adhering to these guidelines and maintenance procedures, operators can ensure the safe and efficient operation of hydraulic breakers while maximizing their lifespan and performance.

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