3D Laser Scanning for Haul-Truck Body Refurbishment

3D Laser Scanning for Haul-Truck Body Refurbishment


Engineer using 3D laser scanning to capture a mining haul truck for dimensional inspection, reverse engineering, repair planning and asset-life extension.

Turning Worn Truck Bodies into Measurable Engineering Data

Mining haul trucks operate in some of the most demanding conditions found in heavy industry.

Every loading and unloading cycle exposes the truck body—also known as the tray, tub, dump body or haul body—to impact, abrasion, vibration and material build-up.

Over time, this operating environment can result in:

  • Worn floor and sidewall plates

  • Distorted body geometry

  • Damaged liners and wear packages

  • Cracking around structural connections

  • Misaligned mounting points

  • Localised deformation

  • Reduced load-carrying efficiency

  • Increasing repair and maintenance requirements

The difficulty for maintenance and engineering teams is not simply identifying that wear exists. The greater challenge is determining the extent of that wear and establishing an appropriate refurbishment scope.

Engineering-grade 3D laser scanning can provide the dimensional information needed to support that decision.

Why Visual Inspection May Not Be Enough

A visual inspection remains an important part of haul-truck maintenance, but it may not provide a complete picture of the body’s geometry.

Large truck bodies can experience gradual deformation across broad areas. Because these dimensional changes develop progressively, they may be difficult to assess using photographs, straightedges and isolated manual measurements.

Maintenance teams may be able to see:

  • Worn liner plates

  • Cracked welds

  • Damaged ribs

  • Distorted edges

  • Areas of heavy impact

However, it may be harder to determine:

  • How far the floor has moved from its intended geometry

  • Whether the sidewalls have spread or twisted

  • Whether the body remains symmetrical

  • Which mounting points are misaligned

  • How much material has been lost from a particular area

  • Whether deformation is localised or distributed across the structure

A 3D laser scan creates a measurable digital record of the haul-truck body in its current condition.

Learn more about this engineering workflow:

Haul-Truck Body Refurbishment Scanning
https://www.hamiltonbydesign.com.au/haul-truck-body-refurbishment-scanning/

What Does Haul-Truck Body Scanning Capture?

A terrestrial laser scanner records millions of measured points across the visible surfaces of the truck body.

These measurements form a three-dimensional point cloud representing the actual geometry of the asset at the time of inspection.

Depending on access, visibility and the required scope, the scan may capture:

  • The body floor

  • Internal sidewalls

  • External sidewalls

  • Front wall and canopy

  • Tail section

  • Longitudinal stiffeners

  • Cross-members

  • Wear liners

  • Body rails

  • Mounting and pivot areas

  • Structural transitions

  • Areas of previous repair

The point cloud can then be reviewed directly or converted into CAD geometry for more detailed engineering analysis.

Hamilton By Design’s broader mining workflow combines engineering-grade scanning with point-cloud processing, SolidWorks modelling and fabrication documentation for brownfield and asset-life-extension work.

Comparing the Existing Body with Reference Geometry

One of the most valuable applications of scanning is the ability to compare the existing haul body with a reference model.

The reference may be:

  • An original equipment manufacturer model

  • A previous scan of the same truck body

  • A scan of a comparable body in better condition

  • A reconstructed nominal CAD model

  • A designed symmetrical surface

  • Known critical dimensions supplied by the client

A deviation comparison can highlight areas where the body has moved away from the reference geometry.

The results may identify:

  • Depressed floor areas

  • Bulged sidewalls

  • Twisted or racked sections

  • Uneven wear patterns

  • Damaged transitions

  • Misaligned mounting features

  • Local impact deformation

  • Differences between repaired and unrepaired areas

Colour-coded deviation mapping can make these geometric changes easier for maintenance teams, engineers and repair contractors to interpret.

Supporting Refurbishment Decisions

The purpose of the scan is not merely to produce an impressive three-dimensional image.

The scan should support practical engineering and maintenance decisions.

Information developed from the scan may help determine whether the body requires:

  1. Continued operation with monitoring

  2. Localised plate replacement

  3. Replacement of wear liners

  4. Structural straightening

  5. Repair of individual ribs or stiffeners

  6. Partial body reconstruction

  7. Major workshop refurbishment

  8. Complete body replacement

This can help the maintenance team establish a more clearly defined scope before the truck body enters the workshop.

A better-defined scope may also support:

  • Budget development

  • Contractor quotations

  • Material procurement

  • Replacement-plate preparation

  • Workshop scheduling

  • Shutdown planning

  • Labour allocation

  • Quality verification following repair

Repeat Scanning and Wear Progression

A single scan provides a record of the truck body at one point in time.

Repeat scanning can provide considerably more information.

When scans are completed at planned intervals, maintenance teams can compare the datasets and begin building a history of wear and deformation.

This may help identify:

  • Areas experiencing accelerated wear

  • Changes in body capacity or shape

  • Recurring impact zones

  • Sections requiring more frequent repair

  • Differences between operating routes or materials

  • The effectiveness of replacement liners

  • Whether a previous refurbishment is performing as expected

Repeat scanning can therefore contribute to a broader condition-monitoring and asset-management strategy.

Three-dimensional scanning is increasingly used to create reliable “as-is” records of mining assets rather than relying solely on original drawings or assumptions about their current condition.

Scan Data and SolidWorks Engineering Models

Once the point cloud has been registered and processed, selected areas of the haul-truck body can be converted into engineering geometry.

SolidWorks or another suitable CAD platform may be used to develop:

  • Simplified body-envelope models

  • Replacement plate profiles

  • Structural-member models

  • Mounting arrangements

  • Repair concepts

  • Fabrication assemblies

  • Workshop drawings

  • Inspection templates

  • Dimensional reports

Not every part of the truck body needs to be converted into a detailed solid model.

The modelling scope should be selected according to the engineering decision being made.

For example, a refurbishment project may require detailed models of the floor, sidewalls and damaged structural members, while less critical areas may remain represented by the point cloud.

Mining infrastructure projects commonly use this point-cloud-to-engineering-model workflow to base design work on measured conditions and reduce uncertainty during fabrication and installation.

Combining Scanning with Other Inspection Methods

Laser scanning measures visible surface geometry, but it does not replace every inspection method.

A comprehensive haul-body assessment may also include:

  • Ultrasonic thickness testing

  • Weld inspection

  • Magnetic-particle testing

  • Dye-penetrant testing

  • Crack mapping

  • Material identification

  • Hardness testing

  • Review of payload and operating records

  • Engineering assessment of fatigue-sensitive areas

Combining these methods provides a more complete picture.

For example, scanning may identify that a floor section has deformed, while ultrasonic testing establishes the remaining plate thickness and crack inspection identifies whether defects have developed around the surrounding welds.

The combined information can support a more defensible repair or refurbishment recommendation.

Engineering Information for Workshop Planning

Workshop refurbishment can involve significant uncertainty when the true geometry of the haul body is not known until repair work has started.

Accurate scan information can be collected before the major refurbishment begins.

This gives the project team an opportunity to:

  • Review body condition before workshop entry

  • Identify likely replacement areas

  • Develop preliminary repair concepts

  • Prepare plate profiles

  • Estimate steel quantities

  • Coordinate specialist inspections

  • Plan lifting and access requirements

  • Compare geometry after the repairs are complete

Post-refurbishment scanning may also be used to verify that critical areas have been returned to the required geometry.

A Measured Basis for Haul-Truck Refurbishment

Haul-truck body refurbishment decisions should be based on more than general visual observations.

Engineering-grade 3D laser scanning provides a measured record of the tray, tub or dump body and creates a reliable foundation for dimensional assessment, CAD modelling and repair planning.

When combined with thickness testing, crack inspection, maintenance history and engineering judgement, scan data can help mining operators make better-informed decisions about repair, refurbishment and remaining asset life.

Hamilton By Design provides engineering-led 3D laser scanning, point-cloud processing, reverse engineering and scan-to-CAD services for mining equipment and infrastructure projects across Australia.

View the complete service page:

Haul-Truck Body Refurbishment Scanning

https://www.hamiltonbydesign.com.au/haul-truck-body-refurbishment-scanning/

The service can support maintenance teams, mine operators, engineering consultants, repair workshops and equipment owners seeking clearer information before planning haul-truck body repairs or refurbishment.



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