Microwave Oven Door Shield Screen is used for blocking microwave energy at the oven door while users can still see the food, using a perforated metal screen whose 1–2 mm holes are far smaller than the 12 cm wavelength. 21 CFR 1030.10 is the reference cited for it on drawings, datasheets and purchase orders.
What 21 CFR 1030.10 Means for Microwave Oven Door Shield Screen
The dimensions in the table below are supplied to suit 21 CFR 1030.10. Where the standard sets requirements for the finished appliance, device or system, compliance testing of that assembly stays with its manufacturer; we supply the metal mesh part to the drawing and can provide material certificates and dimensional reports with the shipment.
Microwave Oven Door Shield Screen Dimensions
| Size | Hole diameter (mm) | Pitch (mm) | Thickness (mm) | Open area (%) | Material |
|---|---|---|---|---|---|
| 20 L door | 1.5 | 2.2 | 0.4 | 42.2 | Cold-rolled steel, black |
| 25 L door | 1.5 | 2.2 | 0.4 | 42.2 | Cold-rolled steel, black |
| 32 L door | 1.6 | 2.4 | 0.5 | 40.3 | SS430 |
| Built-in combi | 1.2 | 2.0 | 0.5 | 32.6 | SS304 |
Specifying Microwave Oven Door Shield Screen Beyond the Standard
- Hole diameter & pitch: 1.2–1.6 mm holes keep leakage well under the 5 mW/cm² limit when the door is correctly sealed.
- Open area: Higher open area improves visibility; balance it against shielding margin.
- Material & finish: Black-coated cold-rolled steel for contrast; SS430 for premium doors.
When Microwave Oven Door Shield Screen Is Not the Right Choice
Not a DIY part — door repairs must be leakage-tested by qualified service technicians.
