Specification data for 4 mesh food dehydrator stainless mesh tray to FDA 21 CFR / EU 1935/2004 food contact: aperture and micron rating, standard and alternative wire diameters, open area, weight per square metre, and the applications this fineness is commonly used for.
4 Mesh Specification Row (FDA 21 CFR / EU 1935/2004 food contact)
| Mesh count | Wire diameter (mm) | Aperture (mm) | Micron rating (u00b5m) | Open area (%) | Tray (mm) |
|---|---|---|---|---|---|
| 4-Mesh | 0.900 | 5.450 | 5450 | 72.0 | 400 u00d7 400 |
4 Mesh to Micron & Aperture
| Openings per inch | 4 |
|---|---|
| Aperture (opening width) | 5.35 mm |
| Micron rating | 5350 µm |
| Standard wire diameter | 1 mm |
| Open area | 71 % |
Aperture = (25.4 mm ÷ mesh count) − wire diameter. The micron rating equals the aperture in micrometres; actual retention also depends on particle shape and cake formation.
Wire Diameter Options at 4 Mesh
| Option | Wire dia | Aperture | Micron | Open area | Weight (SS) |
|---|---|---|---|---|---|
| Heavy wire | 1.300 mm | 5.050 mm | 5050 µm | 63.2 % | 3.48 kg/m² |
| Standard wire | 1.000 mm | 5.350 mm | 5350 µm | 71.0 % | 2.06 kg/m² |
| Fine wire | 0.750 mm | 5.600 mm | 5600 µm | 77.8 % | 1.16 kg/m² |
Heavier wire adds strength and abrasion life but closes the aperture; finer wire opens the aperture and raises throughput at the cost of durability. Specify mesh count AND wire diameter to fix the aperture unambiguously.
Open Area & Flow at 4 Mesh
The standard 4 mesh weave presents an open area of about 71%. At this count the mesh presents little flow resistance; selection is normally driven by particle retention and mechanical strength rather than pressure drop.
4 Mesh Cloth Weight
Standard 4 mesh stainless cloth weighs approximately 2.06 kg/m² (density 7.93 g/cm³ basis; brass and copper weave roughly 10% heavier, aluminum about one third). Use this figure for roll handling and freight estimation.
Typical Applications for 4 Mesh Food Dehydrator Stainless Mesh Tray
4 mesh food dehydrator stainless mesh tray is commonly specified for coarse screening and grading, safety guarding, animal enclosures, plaster and render reinforcement, and support layers behind finer filter cloth.
Plain, Twill or Dutch Weave at This Rating?
Plain square weave is the standard at this count: every opening is a true square of the stated aperture, retention is absolute for hard spherical particles, and the cloth is easy to clean.
What Food Dehydrator Stainless Mesh Tray Does
Drying fruit, vegetables, jerky, herbs and pet treats on stainless mesh trays that let warm air pass evenly through every layer of a dehydrator or drying room.
Fitting & Care
- Space pieces so air can pass between them.
- Wash trays in hot soapy water or the dishwasher after use.
