Every so often, a project arrives that doesn't fit any standard catalog. A cryogenic storage facility requiring wheels that maintain elasticity at -80°C. A semiconductor cleanroom where particle shedding must be near-zero. A medical device requiring biocompatible materials and sub-decibel operation.
These are the projects that remind us why we maintain an in-house engineering team rather than outsourcing design work.
The Custom Development Process
Our bespoke wheel development follows a structured six-phase process:
- Constraint Analysis — We document every operating parameter: temperature range, chemical exposure, load profile, duty cycle, noise limits, cleanliness requirements, and regulatory standards.
- Material Screening — Using our compound database of 200+ formulations, we identify candidate materials that meet the constraints. When no existing compound suffices, we engage our polymer partners for custom formulation.
- Finite Element Analysis — Before cutting steel, we model stress distribution, heat buildup, and deformation under expected loads. This virtual prototyping typically identifies 2-3 design issues that would only surface in physical testing.
- Prototype Fabrication — We produce 3-5 prototype units using rapid tooling methods. Turnaround time is typically 2-3 weeks.
- Validation Testing — Prototypes undergo accelerated life testing under simulated operating conditions. We document performance against specification and iterate as needed.
- Production Release — Once validated, designs transfer to our production team with full QC protocols.
Case Study: Cryogenic AGV Fleet
A pharmaceutical client required AGV wheels for a -70°C storage facility. Standard polyurethane becomes brittle at -40°C, rendering it unsuitable. Our engineering team developed a specialized silicone-polyurethane hybrid compound that maintains 85% of room-temperature elasticity at -70°C.
The solution also incorporated ceramic bearings with cryogenic-rated grease, preventing seizure at extreme temperatures. The client has now operated 47 AGVs on these wheels for 18 months without a single wheel-related failure.
When Custom Makes Sense
Custom engineering isn't always the right choice. For 90% of applications, our standard product lines deliver optimal performance at competitive pricing. Custom development is justified when:
- Operating conditions exceed standard product specifications
- Regulatory compliance requires specific materials or certifications
- Total fleet size justifies amortizing NRE costs
- Application-specific performance requirements cannot be met with catalog products
Conclusion
Custom wheel engineering bridges the gap between standard catalog products and extreme operating requirements. With a structured development process, advanced simulation tools, and deep polymer expertise, we deliver solutions that perform reliably where off-the-shelf products cannot survive.