How to Prevent Rust and Corrosion on Underground Electric LHD Loaders

21 August, 2026

Underground mining environments can be extremely demanding on equipment. High humidity, water seepage, mud, dust, and corrosive substances can gradually damage metal components.

For an underground electric LHD loader, rust and corrosion are more than cosmetic problems. If not properly controlled, corrosion can affect the bucket, frame, articulated joints, and other important components, increasing maintenance costs, causing equipment downtime, and reducing the machine’s service life.

This article shares several practical ways to help protect underground electric LHD loaders from rust and corrosion.

1. Keep the Loader Clean and Dry

Regular cleaning is one of the simplest ways to prevent rust.

During underground operations, mud, ore residue, dust, and moisture can accumulate on the machine. If left untreated, these materials can trap moisture and accelerate corrosion.

Pay particular attention to:

The loader bucket
Chassis and lower frame
Articulated areas
Wheel and axle areas
Exposed metal surfaces

After cleaning, excessive moisture should be removed whenever possible, especially if the equipment will remain unused for an extended period.

High-pressure water can help remove mud and surface contamination, but excessive pressure should be avoided around electrical components, seals, bearings, and other sensitive areas.

2. Repair Damaged Paint and Protective Coatings

Protective coatings help isolate metal surfaces from water and air. However, underground mining conditions can cause scratches, abrasion, and paint damage.

Once bare metal is exposed to moisture, corrosion can develop quickly.

Regularly inspect areas such as:

Bucket edges and high-wear areas
Scratched or damaged surfaces
Welded sections
Exposed steel components

Damaged areas should be cleaned and treated before applying suitable anti-corrosion primers and protective coatings.

Repairing small areas of damage early can help prevent more serious corrosion and reduce future maintenance costs.

3. Apply Suitable Anti-Corrosion Protection

In humid underground environments, additional protection may be necessary for exposed metal components.

Depending on the application, suitable protection methods may include:

Anti-rust primers
Industrial protective paint
Corrosion-resistant coatings
Protective oils or rust inhibitors for selected metal parts

The protection method should be selected according to the actual mining environment, including humidity, water exposure, abrasive conditions, and the type of material being handled.

4. Pay Attention to High-Risk Areas

Some parts of an underground electric LHD loader are more exposed to moisture, abrasion, and corrosion than others.

Bucket and Cutting Areas

The bucket is constantly exposed to rocks, ore, moisture, and abrasion. Damaged coatings and exposed metal surfaces should be repaired as soon as possible.

Chassis and Lower Frame

Mud and water can accumulate underneath the machine, making these areas more difficult to clean and inspect. Regular cleaning helps prevent long-term moisture buildup.

Articulated Joints and Moving Parts

Moisture and contamination can affect moving components. Proper cleaning and lubrication can help reduce wear and provide additional protection.

Electrical Components

For an electric LHD loader, electrical protection is particularly important in underground environments. Cables, connectors, and protective covers should be kept clean and protected from excessive moisture.

5. Maintain Proper Lubrication

Proper lubrication helps reduce friction and wear while providing additional protection for certain moving metal components.

Follow the manufacturer’s maintenance requirements and ensure that important lubrication points are properly maintained, especially articulated joints, pins, bushings, and other moving parts.

Using the correct lubricant can help improve component reliability and reduce the effects of moisture and contamination.

6. Store the Equipment Properly

If the LHD loader will be out of service for an extended period, proper storage can help reduce the risk of corrosion.

Before storage, the machine should be cleaned and inspected, with mud and moisture removed from exposed surfaces. Damaged protective coatings should also be repaired where necessary.

Whenever possible, equipment should be stored in a dry and well-ventilated environment and protected from continuous water exposure.

Conclusion

Rust prevention is an important part of maintaining reliable underground mining equipment.

By keeping the machine clean, repairing damaged coatings, protecting exposed metal surfaces, maintaining proper lubrication, and reducing long-term exposure to moisture, mining operators can help reduce corrosion and extend the service life of their underground electric LHD loaders.

Regular preventive maintenance can also help reduce unexpected repairs, minimize equipment downtime, and improve long-term operating reliability.

Looking for Reliable Underground Mining Equipment?

At RUIXIN EQUIPMENT, we provide a range of equipment for underground mining operations, including underground mining dumper trucks, LHD loaders, mining transportation equipment, and other mining machinery.

Our equipment can be configured according to different underground mining conditions and project requirements.

Contact us to learn more about our underground mining equipment and customized solutions for your project.