Platform for the Food Industry – Case Study
Hygienic processing environments leave no room for compromise. In a close design collaboration with MNA Solutions, our team engineered a next-generation stainless steel maintenance platform for a leading Australian pet food manufacturer. Designed to integrate into a running facility, this project prioritized complex hygienic geometry, modular component design, and zero-contamination boundaries to secure safety compliance while cutting plant downtime.
Executive Summary
project intent & outcomeIndustrial food processing plants must balance mechanical system access with strict sanitation protocols. To improve maintenance accessibility for a prominent Australian pet food producer, we co-designed a robust, food-grade structural platform. The legacy access systems carried high rust risks and contained biological accumulation pockets that made cleaning difficult. Our design solution replaced old frame joints with a highly modular, 100% stainless steel framework featuring rounded edges, anti-slip textures, and self-draining slopes. Though budget restrictions temporarily paused final physical rollout, the completed 3D designs established an important technical baseline for safety-compliant, washdown-ready manufacturing platform designs.
Every weld, corner, and surface plane must actively shed moisture and washdown fluids. Eliminating horizontal surface pockets stops biological accumulation before it starts.
- Employ modular structural panels to minimize on-site welding and plant downtime.
- Incorporate continuous-radius rounded edges to prevent bacterial breeding zones.
- Optimize material use to match plant load standards while remaining cost-effective.
Visual Knowledge Map
hygienic design methodologyDesigning curved joint geometry and modular frame connections in a unified virtual space.
Core Concepts
food-grade engineering definitionsHygienic Radii
Designing all internal and external corners with minimum 3mm smooth curves to prevent organic materials from nesting in sharp crevice joints.
Modular Fabrication
Pre-building platform sections off-site so they bolt together quickly, cutting down on-site installation work and assembly errors.
Corrosion Resistance
Selecting premium stainless steel (Grade 304 or 316) to withstand aggressive, hot washdown chemicals and high humidity.
Self-Draining Slopes
Angling all support profiles and panel sections at minor slope gradients to ensure washdown water runs off completely.
Anti-Slip Safety
Using diamond-textured or raised-pattern steel sheet-metal to keep walking areas slip-resistant during wet sanitations.
- Exceeds industrial safety codes
- Maintains high wash cleanability
Stitch-Weld Elimination
Replacing standard structural stitch welding with fully sealed, continuous welds to eliminate hollow crevices.
Ergonomic Clearance
Designing step rises, platform widths, and handrail heights to keep maintenance teams safe and comfortable.
Stakeholder Feedback
Running interactive design iterations with MNA Solutions and the client to refine platform paths and avoid pipe blockages.
Frameworks & Models
materials & stress trackingDynamic Safety & Cost Balance
By achieving 80% of our safety objectives through clean, structural shapes, we reduced the material footprint, helping to lower fabrication costs without compromising load limits.
Platform Contamination Risk Map
Organic Buildup
Prevented via continuous smooth fillets
Pool Stagnation
Eliminated via 2-degree drainage slopes
Chemical Attack
Neutralized with 304/316 Stainless Steel
Microbial Nesting
Prevented with continuous-weld joints
Platform Design Economics
| Specification Category | Standard Industrial Platform | Hygienic Modular Platform |
|---|---|---|
| Material Base | Structural Carbon Steel (Painted) | 304/316 Food-Grade Stainless Steel |
| Sanitation Cycle Speed | Slow (Needs deep scrubbing on welds) | Fast (Direct washdowns; zero-nest shapes) |
| On-Site Assembly Time | High (Days of welding and grinding) | Low (Fast bolt-together sections) |
| Tolerances to Shifts | Poor (Rigid frame adjustments require cuts) | High (Modular sections adapt to fit changes) |
Hygienic Design Validation Loop
System Variables: washdown flow paths · dead legs · corner radius bounds · fastener accessibility.
Process Flow
sequential engineering design processSite Analysis
Map the active factory layout and check structural clearances.
Rule Mapping
Define food safety and OSHA guidelines for the layout.
Sizing Draft
Model the primary stairs and deck access platforms.
Modularity Slice
Divide the platform into compact, transportable modules.
Shed Validation
Slope horizontal members and add continuous radius curves.
Material Check
Verify stainless steel gauge specs to reduce material weight.
Design Review
Coordinate final check with MNA Solutions and client teams.
Release Pack
Package assembly drawings and flat-pattern weld specs.
Relationship Diagram
system feedback loopDependencies & Interactions
mechanical design boundariesSanitation times depend on hygienic weld designs — fully continuous welds prevent biological nesting and cut down cleaning times.
Platform lifespan depends on stainless steel grade selection — high chemical corrosion resistance preserves structures through aggressive washes.
Installation schedules depend on modular segment sizes — compact, pre-fabricated modules speed up on-site assembly.
Worker safety depends on anti-slip textured panels — slip-resistant patterns protect operators on wet factory floors.
Manufacturing cost depends on mass optimization checks — reducing structural weight cuts material cost without losing load capacity.
Operational space fits depend on site coordinate checks — accurate spatial models prevent clashes with existing factory pipework.
Key Takeaways
critical project insights- Continuous radii stop bacteria — designing all corners with smooth, 3mm curves prevents biological buildup.
- Modular structures cut down shutdowns — off-site fabrication lets teams bolt modules together quickly on site.
- Sloped panels ensure dry runs — adding minor gradients to flat surfaces stops stagnant pools from forming.
- Clean metallurgy is vital — food-grade stainless steel stands up to hot washdown chemicals without corroding.
- Design around existing pipes — modeling the platform alongside existing structures prevents installation clashes.
- Texture keeps workers secure — raised patterns maintain safe footing in wet washdown environments.
- Simplify joints to ease cleanings — eliminating stitch welds removes hard-to-reach niches where bacteria multiply.
- Collaborative checks speed up designs — working closely with MNA Solutions ensured full compliance with regulatory codes.
Revision Sheet
high-impact review- The Task: Design a safe, easy-to-clean maintenance platform for a leading Australian pet food manufacturer.
- The Method: Use modular, food-grade stainless steel assemblies designed with continuous curved joints.
- The Value: Fast washdowns, zero water pooling, and quick on-site assembly times.
- Materials & Geometry: 304/316 stainless steel with 3mm hygienic joint radii and 2-degree self-draining slopes.
- Modular Mechanics: Bolted, pre-fabricated frame modules that assemble quickly without hot-work field welding.
- Safety Integration: Textured anti-slip step treads, continuous handrails, and rounded protective bumper corners.
- Compliance Track: Direct matching with AS 4674 food facility specs, validated through 3D SolidWorks simulations.
Quick Reference Table
design specifications| Design Focus | Hygienic Concern | Applied Engineering Solution | Value Yield |
|---|---|---|---|
| Structural Framework | Bacteria nesting in open crevices | Continuous, fully sealed stainless steel welds | Eliminates biological growth pockets |
| Walking Steps & Deck | Slip hazards and stagnant pools | Textured, raised treads with drain slopes | Maintains safe footing and stops water pools |
| Access Handrails | Dirt buildup on corner brackets | Smooth, continuous-bend rail designs | Makes handrails fast and easy to wipe down |
| Frame Fasteners | Rust and contamination on joints | Flanged dome nuts and hygienic silicone seals | Prevents corrosion and traps at bolt connections |
Frequently Asked Questions
clarifying the design choicesWhy use stainless steel over painted mild steel?
Mild steel paint can chip and contaminate food products. Mild steel also rusts under wet washdowns, whereas stainless steel maintains a clean, rust-free surface through thousands of wash cycles.
How do modular platform designs lower installation downtime?
Instead of cutting and welding steel on the factory floor, modular components are pre-assembled off-site. On-site crews simply bolt the segments together, reducing plant shutdown times.
What does 'cleanable geometry' mean for weld designs?
It means replacing skip/stitch welding with continuous, smooth welds. This removes deep crevices where raw food particles and water can get trapped and grow bacteria.
How does the platform handle wet washdowns without pooling water?
All flat platform panels have a 2-degree slope, and the structural supports are angled. Gravity pulls washdown water off the platform, keeping it dry and clean.
How do rounded edges improve plant safety?
Rounded profiles prevent painful impact injuries for workers moving around the plant. They also stop food particles from catching on sharp corners during production.
Why did this platform design remain at the concept stage?
While the 3D models were fully approved, budget reallocations at the facility delayed the physical build, though the design remains ready for future rollout.
Memory Hooks
engineering tagsRound out every corner to prevent bacteria from nesting.
Angle all flat surfaces to shed washdown water instantly.
Assemble pre-built segments to slash onsite shutdown times.
Use food-grade stainless to resist strong chemical washdowns.
Practical Applications
industrial use-casesPet Food Processing
Providing safe, sanitary maintenance access above mixers and extrusion cookers.
Dairy & Liquid Plants
Installing rust-proof access stairs over dynamic piping arrays and storage tanks.
Cleanroom Corridors
Using fully sealed, non-outgassing metal platforms inside high-care sterile rooms.
Hygienic 3D Audits
Using digital assemblies to spot and remove biological traps before building equipment.
Fast-Clean Systems
Applying curved surface guidelines to other processing machinery to speed up washing cycles.
Modular Upgrades
Building bolt-together platforms to safely upgrade legacy plants without performing hot work.