Weizhi Hardware delivers high-precision sheet metal enclosures, internal optical chassis, surgical instrument trays, and fluidics bracket assemblies for medical diagnostic instruments, IVD analyzers, and cleanroom lab equipment. Utilizing medical-grade 304 and 316L stainless steel alongside AL 5052/6061, we guarantee zero-burr laser finishing, flush cosmetic welds (TIG/Laser), passivation (ASTM A967), and strict particulate-free packaging compliant with ISO 9001:2015 quality assurance.
1. Medical & Lab Metal Component Spectrum
| Equipment Application | Typical Metal Components | Material Selection | Surface Finish & Secondary Operations |
|---|---|---|---|
| In-Vitro Diagnostic (IVD) Analyzers | Chassis base plates, reagent cooling brackets, pump mounting manifolds | 304 Stainless Steel, AL 6061-T6 (Electroless Nickel Plating) | CNC Precision Milling (±0.02 mm), Chemical Passivation, Bead Blasting |
| Hospital Surgical & Sterilization Trays | Perforated sterilization baskets, instrument holders, autoclave lids | 316L Marine/Surgical Stainless Steel | Electropolishing (Ra <0.4 μm), Burr-free deburring, Laser etching |
| Diagnostic Imaging & Laser Housings | Exterior cosmetic covers, EMI shielded controller chassis, cable raceways | Aluminum 5052-H32, Galvannealed Steel | High-gloss medical white powder coat (Anti-microbial, bleach resistant) |
| Fluidic & Peristaltic Pump Brackets | Motor mounting brackets, valve manifolds, sensor alignment clamps | 304 Stainless, Precision Cold Rolled Steel | Vibration dampening studs, PEM press-fit hardware, black anodizing |
2. Cleanroom Finish & Surface Quality Standards
Medical devices demand exceptional hygiene and cosmetic perfection. Weizhi enforces strict manufacturing controls:
- 100% Burr-Free Edge Finishing: Every laser-cut and punched edge undergoes automated vibratory finishing and manual edge-rounding (R ≥ 0.2 mm) to prevent cable chafing and technician injury.
- Electropolishing & Chemical Passivation (ASTM A967 / ISO 16048): Removes free iron from the surface, creating an enriched chromium-oxide passive layer resistant to aggressive hospital disinfectants (isopropanol, chlorine, hydrogen peroxide).
- Seamless TIG & Laser Welding: External corner seams are blended and grain-matched to simulate a seamless monolithic enclosure with zero crevice traps for bacteria.
3. Dimensional Verification and Full Traceability
- Full Material Certifications (EN 10204 3.1): Every batch of stainless steel and aluminum includes chemical composition and mechanical test mill reports.
- CMM Inspection & FAI Reports: Coordinate Measuring Machine (CMM) verification ensures hole concentricity and mounting datum alignment within ±0.05 mm.
- Clean Assembly & Packaging: Parts are degreased, ultrasonic cleaned, and double-poly bagged to ensure cleanroom readiness upon arrival at your assembly facility.
Frequently Asked Questions (FAQ)
Can you achieve aesthetic seamless corners on medical white powder-coated covers?
Yes. We laser weld external corner joints and sand them flush using progressive grit abrasive belts before applying high-durability medical-grade polyurethane powder coating. The resulting finish is visually seamless with no visible weld lines.
What documentation is supplied with medical component shipments?
Each shipment includes: (1) Certificate of Conformance (CoC), (2) Raw Material Mill Test Certificates (EN 10204 Type 3.1), (3) Full Dimensional First Article Inspection (FAI) Report, and (4) Passivation / Coating Thickness Certification.