2277 Longyang Rd. Pudong, Shanghai, China info@mixingchina.com

What Are the Common Asphalt Plant Troubleshooting Problems? - NFLG Asphalt Mixing Plant Manufacturer

Asphalt Plant Troubleshooting

What Are the Common Asphalt Plant Troubleshooting Problems?

April 24, 2023 Paddy Comments Off

Asphalt plant troubleshooting is a crucial part of ensuring the efficient and smooth operation of these essential machines in the construction industry. These plants play a critical role in providing the necessary materials for paving roads and other surfaces. However, with their complexity, asphalt plants can experience problems and breakdowns that can affect their performance. In this guide, we will provide a comprehensive overview of asphalt plant troubleshooting, highlighting common issues and solutions for each component of the plant.

Asphalt Plant Components and Troubleshooting

Asphalt plants are comprised of several key components, each of which can experience issues that impact overall plant performance. The following is an overview of each component and the most common problems that can arise:

Cold Feed Bins

Cold feed bins are used to store and supply aggregate materials to the plant for mixing. Common issues with cold feed bins include:

  • Material bridging or clumping, which can cause uneven feeding and material flow.
  • Incorrect bin sizing, which can result in inadequate storage capacity.
  • Faulty feeders or controls, which can impact accuracy and consistency of material delivery.


  • Use vibrators or air cannons to prevent material bridging and ensure proper material flow.
  • Ensure proper sizing of bins for adequate storage capacity.
  • Regularly maintain and inspect feeders and controls to ensure accurate and consistent material delivery.

Drying Drum

The drying drum is responsible for heating and drying the aggregate materials prior to mixing. Common issues with the drying drum include:

  • Inadequate heating, which can result in insufficient drying of materials.
  • Build-up of materials in the drum, which can impact material flow and cause clogs.
  • Drum misalignment, which can cause vibration and impact overall plant performance.


  • Regularly maintain and inspect burners and other heating components to ensure adequate heating.
  • Use proper drum slope and rotation to prevent build-up of materials.
  • Ensure proper drum alignment to prevent vibration and impact on plant performance.

Mixing Tower

The mixing tower is where the heated and dried aggregate materials are combined with asphalt and other additives to create the final product. Common issues with the mixing tower include:

  • Inconsistent mixing, which can result in uneven distribution of asphalt and other additives.
  • Material build-up in the tower, which can impact material flow and cause clogs.
  • Faulty controls, which can impact accuracy and consistency of material delivery.


  • Regularly maintain and inspect mixers and other components to ensure consistent mixing.
  • Use proper tower design and cleaning procedures to prevent material build-up.
  • Regularly maintain and inspect controls to ensure accurate and consistent material delivery.

Asphalt Plant Troubleshooting Tips

Asphalt plant components can face a range of issues that can impact plant performance and output. While addressing specific issues with each component is essential, there are several general tips that can help identify and resolve problems. Here are some of the best practices for asphalt plant troubleshooting:

  • Regular Inspection and Maintenance:
  1. Preventative maintenance can go a long way in avoiding potential issues. Regularly inspect and maintain all plant components to prevent issues before they occur. This includes:
  • Checking the condition of belts, chains, and conveyors
  • Inspecting electrical components
  • Checking oil and fluid levels
  • Inspecting and cleaning filters
  • Inspecting and maintaining burners and fuel systems
  • Checking the condition of the drum and flights
  • Monitor Plant Performance:
  1. To identify issues before they become major problems, monitor plant performance and record any abnormalities or changes. This can include:
  • Recording mix temperatures and gradation
  • Measuring emissions and air quality
  • Monitoring fuel consumption
  • Measuring the moisture content of aggregates
  • Monitoring drum rotation speed and amperage
  • Training and Education:
  1. Well-trained operators and personnel are essential to quickly identifying and addressing issues as they arise. Training should include:
  • Proper equipment operation
  • Regular maintenance tasks
  • Identifying and troubleshooting common issues
  • Monitoring plant performance metrics
  • Safety procedures and protocols

By following these general tips for asphalt plant troubleshooting, operators and maintenance personnel can identify and address issues quickly, minimizing downtime and improving plant performance.


Asphalt plant troubleshooting can be a complex and challenging process, but with proper maintenance and attention, many issues can be prevented or quickly resolved. Regular inspections, maintenance, and training of personnel are essential to keeping your plant running smoothly and efficiently. By following the tips and solutions outlined in this guide, you can ensure the long-term performance and success of your asphalt plant.

Also to read:

Want to Learn More About Asphalt Plant Technology? Read This!

How Regular Asphalt Plant Maintenance Can Save You Money