How to Clean the Blockage of a 62 Meter Concrete Pump

A 62 meter concrete pump (also called a 62m boom pump) is essential for large-scale construction projects, such as high-rise buildings, bridges, and dams. However, blockages can occur due to improper concrete mix, pipeline issues, or operational errors. If not resolved quickly, blockages can lead to downtime, increased costs, and potential equipment damage.  

This guide provides a step-by-step process for cleaning blockages in a 62 meter concrete pump, ensuring smooth operation and minimizing disruptions.  

Understanding the Causes of Blockages  

Before fixing a blockage, it’s crucial to identify why it happened to prevent future occurrences. Common causes include:  

A. Poor Concrete Mix  

Too thick or dry mix – Causes resistance in the pipeline.  

Excessive aggregates – Large stones or debris clog the system.  

Inconsistent slump – Uneven flow leads to buildup.  

B. Pipeline Issues  

Worn-out pipes – Rough inner surfaces trap concrete.  

Improper pipe alignment – Sharp bends increase friction.  

Lack of lubrication – Dry pipes cause sticking.  

C. Operational Errors  

Sudden stops in pumping – Concrete settles and hardens.  

Insufficient cleaning – Residual concrete dries inside pipes.  

Overloading the pump – Excessive pressure causes jams.  

Step-by-Step Blockage Removal Process  

Step 1: Stop Pumping Immediately  

Do not force concrete through the system—this worsens the blockage.  

Reverse the pump (if possible) to relieve pressure.  

Step 2: Locate the Blockage  

Check the pipeline section by section (starting from the pump outlet).  

Listen for unusual sounds – A hollow sound indicates an open section, while a dull thud suggests a clog.  

Use a rubber mallet – Tap the pipes; blocked areas produce a solid sound.  

Step 3: Clear the Blockage  

A. For Minor Blockages (Near the Pump Outlet)  

Use compressed air or water pressure to dislodge the clog.  

Insert a cleaning sponge ball into the pipeline and flush it through.  

B. For Major Blockages (Deep in the Pipeline)  

Disassemble the pipeline at the suspected clog point.  

Manually remove hardened concrete using a rod or high-pressure water jet.  

For stubborn clogs, use a pipeline cleaner (chemical dissolver).  

C. For Boom & S-Valve Blockages  

Open the S-valve cover and clean any buildup.  

Flush the boom pipes with water or a cleaning agent.  

Step 4: Reassemble & Test the System  

Reconnect all pipes securely to prevent leaks.  

Run water or a cleaning mixture through the system before resuming pumping.  

Test with a low-pressure concrete batch to ensure smooth flow.  

Preventing Future Blockages  

A. Optimize the Concrete Mix  

Maintain proper slump (100-150mm) for easy pumping.  

Use high-quality aggregates (avoid oversized rocks).  

Add pumping aids (plasticizers) to improve flow.  

B. Proper Pipeline Maintenance  

Lubricate pipes before pumping (use a cement slurry or special pump grease).  

Inspect pipes regularly for wear and tear.  

Avoid sharp bends—keep pipeline alignment smooth.  

C. Best Operating Practices  

Avoid sudden stops—keep concrete flowing steadily.  

Clean the pump immediately after each use.  

Train operators on correct pumping techniques.  

Emergency Solutions for Severe Blockages  

If traditional methods fail, consider:  

High-pressure water jetting (professional equipment).  

Pneumatic hammer drills for extremely hardened concrete.  

Specialized chemical cleaners (for dissolving stubborn buildup).  

A 62 meter concrete pump is a powerful machine, but blockages can halt productivity if not handled correctly. By following proper cleaning techniques, preventive maintenance, and best operating practices, construction teams can minimize downtime and extend pump lifespan.  

Need a reliable portable concrete pump for sale? Ensure smooth operations with regular maintenance and expert servicing!