The project supplied custom boxes and trays for reagent storage and transport, with resistance to cleaning chemicals and controlled internal geometry.
The customer’s challenge
Liquid collected in corners, and inaccessible weld crevices made the original box difficult to clean to the customer’s requirements.
Material and fabrication route
1.2 mm 304 stainless steel.
Process route: Laser cutting → bending → welding → electropolishing → passivation → silicone-seal assembly.
Manufacturing changes
Large-radius bends, continuous welds and blended internal corners eliminated crevices. Electropolishing completed the internal surface treatment.
Engineering analysis
The box geometry mattered because cleaning access was limited by corners and weld crevices. Large radii and blended continuous seams changed those surfaces before the final electropolishing step. The recorded disinfection temperature and customer cleaning acceptance describe this box configuration. They should not be expanded into a blanket sterilization or regulatory claim for every tray with the same stainless grade.
Inspection and project results
The customer accepted the cleaning validation. The boxes withstood the reported 121°C disinfection condition with the revised corner and seam construction.
| Project measurement or production detail | Recorded value |
|---|---|
| Internal corner radius | R ≥5 mm |
| Disinfection temperature | 121°C |
| Approximate volume | 5 L |
| Production quantity | 100 parts/month |
These figures describe the project configuration and production scope above. Dimensional, material and production details are identified separately from performance tests. For a new order, the inspection method and acceptance criteria should be agreed against the released drawings.
Planning a similar OEM component
A useful RFQ for this application should make the following interfaces and acceptance requirements clear:
- Box volume and internal radii.
- Cleaning chemicals and temperature.
- Continuous-weld and finish requirements.
- Seal materials and acceptance method.
Include the current drawing revision, mating-component information, quantities and required delivery sequence. Identifying unresolved requirements at quotation stage helps distinguish fabrication work from the equipment-level checks that the project needs.
For related manufacturing support, review our Custom Sheet Metal Boxes & Trays and sheet metal quality capabilities. Use the existing quotation form below to share the drawing package for review.
