Girder Design for Efficient Defence Product Painting
Scaling precision coating operations for heavy-duty defence components requires flawless material handling and mobility. Contracted by EPTEC, KEVOS® resolved severe production bottlenecks by designing a modular, rail-based girder system. By eliminating static handling hazards and engineering a high-strength, highly adaptable mobile framework, we developed a validated mechanical blueprint ready to transition EPTEC’s paint line into a continuous, high-efficiency workflow.
Executive Summary
project profile & parametersDefence manufacturing introduces extreme material handling challenges, where large, heavy, and irregularly shaped components must undergo rigorous, multi-stage paint and coating processes. EPTEC’s legacy workflow relied on static painting setups, resulting in intense manual handling requirements, severe labor inefficiencies, and constant throughput bottlenecks. KEVOS® delivered a transformative industrial design solution by engineering a modular girder transit system. This purpose-built framework shifted operations from static, high-risk manual lifts to a smooth, rail-based mobility system, dramatically improving both operator safety and coating consistency.
Static handling creates compounding delays. Introducing engineered mobility into a fixed environment instantly reduces manual labor risks and multiplies throughput capacity.
- Design structural girders capable of supporting massive, dynamic defense payloads.
- Implement modularity to allow rapid adjustments for varying component geometries.
- Incorporate rail-based kinematics to ensure smooth transit between paint booths.
Visual Knowledge Map
workflow optimization timelineDesigning an adjustable, high-strength steel support structure mapped to a mobility rail.
Core Concepts
mechanical handling definitionsModular Configuration
A structural layout designed to be assembled, disassembled, and adjusted rapidly to securely hold varying shapes of defence hardware.
Rail-Based Mobility
Transitioning from stationary floor stands to overhead or floor-tracked rail systems, enabling seamless component transit between process booths.
Manual Handling Reduction
Engineering mechanical supports that completely eliminate the need for operators to manually lift, turn, or carry heavy assets.
High-Strength Steel
Selecting rigid, heavy-duty steel alloys to prevent structural flexing and ensure safety under dynamic, shifting loads.
Static Bottlenecks
Production delays caused when a single component must be manually set up, painted, dried, and moved before the next can begin.
- Causes severe schedule delays
- Increases risk of part damage
Virtual Simulation
Applying computer-aided stress tests to the 3D model to guarantee structural integrity before any physical fabrication begins.
Continuous Throughput
A manufacturing state where components flow smoothly from prep, to paint, to cure without stopping or waiting for manual relocation.
Design Legacy
Delivering a fully validated engineering blueprint that retains immense value, ready to be activated when capital budgets unlock.
Frameworks & Models
structural validation & workflow principlesThe Throughput Efficiency Split
By mechanizing transit, operators spend 75% less time fighting manual setup logistics, allowing them to focus highly specialized labor directly on the active coating phase.
Dynamic Handling Stressors
Component Weight
Supported via high-strength steel girders
Irregular Shapes
Managed via adjustable mounting brackets
Transit Vibration
Damped via smooth rail-based tracking
Operator Strain
Eliminated via mechanical push/pull mechanics
Operational Workflow Comparison
| Workflow Metric | Legacy Static Operations | Proposed Girder System |
|---|---|---|
| Material Handling | Manual lifting & forklift reliance | Integrated rail-based transit |
| Station Turnaround | Slow (Setup/teardown per part) | Fast (Continuous rolling flow) |
| OHS Risk Profile | High (Ergonomic strain & drop risks) | Low (Mechanically supported loads) |
| Geometry Adaptation | Rigid (Requires custom jigs per part) | Modular (Highly adjustable supports) |
System Delivery Lifecycle
System Variables: component limits · workflow paths · floor clearances · load capacities.
Process Flow
design and validation methodologySite Mapping
Audit the physical constraints and workflow delays of the paint line.
Load Profiling
Record maximum weights and dimensions of the defence components.
Concept CAD
Draft initial 3D models of the modular girder structure.
Joint Detailing
Engineer adjustable mounting brackets for diverse geometries.
Mobility Sync
Integrate the girder assembly with a smooth rail transit system.
Stress Simulation
Run virtual FEA simulations to test the frame under dynamic load.
Client Review
Refine the system collaboratively based on EPTEC site feedback.
Blueprint Pack
Deliver the finalized, scalable mechanical design package.
Relationship Diagram
mechanical workflow integrationsDependencies & Interactions
system boundariesThroughput speed depends on workflow mobility — moving from static stands to rail transit eliminates wait times between process stages.
Operator safety depends on load capacity engineering — securing heavy assets to robust steel girders removes crushing and lifting risks.
System adaptability depends on modular connections — adjustable mounting arms are essential to fit highly variable defence product shapes.
Design validation depends on virtual simulation — running CAD stress tests proves structural reliability before cutting expensive steel.
Future implementation depends on detailed blueprints — providing comprehensive technical packs ensures the project can be instantly revived.
Coating quality depends on stable transit — smooth, vibration-free movement prevents wet coatings from sagging or bumping during transport.
Key Takeaways
essential lessons- Mobility scales production — transitioning from static stations to mobile rails is the fastest way to increase factory throughput.
- Modularity future-proofs tooling — designing adjustable girder mounts ensures the system remains useful as product lines change.
- Reduce manual handling immediately — mechanical supports slash OHS injury risks in heavy-duty environments.
- Simulate before you fabricate — virtual CAD testing guarantees structural safety without the high cost of physical prototyping.
- Unify workflow with design — observing the actual shop floor helps target exact bottlenecks with mechanical solutions.
- Eliminate transit vibration — robust rails and stiff steel girders protect freshly painted surfaces during movement.
- Value persists beyond the build — high-quality design blueprints provide lasting ROI, ready for execution when budgets allow.
- Collaborate iteratively — refining concepts with on-the-ground personnel ensures the final design is highly practical.
Revision Sheet
high-impact review- The Task: Design a mechanical handling system to resolve bottlenecks in EPTEC's defence product paint line.
- The Method: Engineer a modular, high-strength steel girder system integrated with a rail-based mobility track.
- The Value: Massive reductions in manual handling, higher throughput, and highly adaptable support for diverse products.
- Structural Detailing: High-capacity steel girder frameworks featuring adjustable bracket mounts to secure irregular shapes.
- Workflow Engineering: Seamless rail integration designed to transition parts smoothly between prep, paint, and curing booths.
- Safety Metrics: Total elimination of manual lifting, replacing high-risk movements with stable, predictable mechanical transit.
- Design Legacy: Fully validated CAD simulations and blueprints delivered as a ready-to-execute package for future capital cycles.
Quick Reference Table
specification reference| Workflow Challenge | Legacy Constraint | Applied Mechanical Solution | Operational Value Yield |
|---|---|---|---|
| Component Transport | High manual labor and slow forklift reliance | Rail-based mobile girder system | Accelerates throughput and eliminates transport delays |
| Diverse Geometries | Required unique static jigs for every part | Modular, highly adjustable structural supports | Adaptable to varied products; reduces tooling costs |
| Workplace Safety | Severe physical strain from heavy lifting | Fully mechanical, high-strength load bearing | Slashes OHS risks and protects specialized workforce |
| Design Validation | Physical prototypes are slow and expensive | Virtual CAD stress and kinematic simulations | Proves structural safety instantly with zero material cost |
Frequently Asked Questions
clarifying the designWhy transition from static painting stations to a mobile girder system?
Static stations require operators to stop working while a forklift moves the product. A mobile girder system on rails allows products to flow continuously down the line, drastically increasing output.
How does modularity help with defence manufacturing?
Defence contracts often involve highly irregular, unique components. A modular girder with adjustable mounts ensures the system can hold entirely different shapes without needing a new rig.
What was the primary safety benefit of this design?
It almost entirely eliminated manual handling. By mechanically securing the heavy components, operators were no longer required to physically push, lift, or stabilize dangerous loads.
How was the design's strength verified before being built?
We utilized advanced virtual simulations (FEA) inside the CAD environment. We applied extreme simulated weights to the digital girder to ensure it would not bend or break in reality.
Why did the project not proceed to final fabrication?
Due to internal stakeholder timing and temporary budget limitations at EPTEC, physical construction was paused. However, the comprehensive design blueprints remain ready for immediate rollout.
What value does an un-built concept provide to a client?
It acts as an actionable, scalable blueprint. The engineering, problem-solving, and safety validations are complete, allowing the client to execute the upgrade the moment funding is released.
Memory Hooks
engineering tagsMechanized rails eliminate static bottlenecks and speed up throughput.
Adjustable mounts future-proof the rig for any irregular component.
Simulate extreme stress loads digitally before cutting physical steel.
Completed engineering packs retain full value for future implementation.
Practical Applications
industrial use-casesAircraft Component Painting
Using rail-based girder systems to move massive fuselage sections smoothly through automated paint booths.
Shipbuilding Logistics
Designing heavy-duty modular frames to transport irregular hull sections across busy shipyard floors.
Heavy Machinery Assembly
Implementing overhead or floor-tracked mobility systems to speed up the assembly of mining or construction vehicles.
FEA Structural Testing
Leveraging virtual CAD simulations to verify load capacities on any custom industrial lifting equipment.
OHS Risk Elimination
Replacing high-risk manual handling tasks with purpose-built mechanical hoists and support rigs.
Scalable Blueprints
Developing fully costed and validated design packages to keep facility upgrades ready for sudden capital unlocks.