Chemical Etched Smoke Detector Mesh Micro-Hole Stainless Steel Insect Screen for Fire Alarm Sensor Protection
Xinhaisen’s precision-etched smoke detector mesh is designed to allow optimal smoke entry while blocking insects, dust, and electromagnetic interference. Manufactured using high-accuracy photochemical etching, our meshes ensure consistent hole size, burr-free edges, and excellent flatness for reliable smoke detector performance.
Material cleaning – Remove oil and contaminants from metal sheets.
Lamination & exposure – Apply photoresist and transfer the mesh pattern via high-precision film.
Development – Remove unexposed photoresist to reveal the etching area.
Spray etching – Use acid etchant to dissolve unprotected metal, forming micro-holes.
Stripping – Remove remaining photoresist.
Inspection & packaging – 100% optical inspection before shipment.
Ultra-fine holes – Minimum aperture down to 0.03mm.
Fine line width – As narrow as 0.015mm.
High uniformity – Tolerance within ±0.01mm.
Burr-free & smooth – No mechanical stress or edge deformation.
Material options – SUS304, SUS316, brass, nickel, etc.
Thickness range – 0.02mm – 1.5mm.
Custom shapes – Round, square, hexagonal, or slotted holes.
| Parameter | Specification |
| Material | Stainless Steel 304 / 316 |
| Thickness | 0.02mm – 1.5mm |
| Open area ratio | 30% – 60% |
| Mesh shape | Round / square |
| Tolerance | ±0.01mm |
| Hole diameter | 0.03mm or customized |
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Ionization & photoelectric smoke detectors
Heat and CO alarms
Fire alarm systems (residential/commercial/industrial)
Air quality monitoring devices
Sensor protection covers
High precision – ±0.01mm uniformity for critical safety devices.
Fast turnaround – Prototype in days, mass production without tooling costs.
Flexible orders – From small R&D batches to millions of pieces.
Wide material range – Exotic metals available upon request.
Proven track record – Serving communications, medical, automotive, and aerospace sectors.


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