Custom Automotive Speaker Grille Cover 0.3mm Etched Stainless Steel Acoustic Mesh Panel

Custom Automotive Speaker Grille Cover — Etched Stainless Steel Acoustic Mesh Panel

This grille cover is produced by photo chemical etching, a process in which the hole pattern is defined photographically and the metal is dissolved from both sides at the same time. Because no cutting tool touches the panel, the aperture edge stays clean and flat, and the front face is not deformed by mechanical force. The result is a thin stainless steel speaker cover that keeps a consistent open area across the whole panel and a surface that can be brushed, polished or coated after etching.

Panels can be delivered as flat sheets or formed into shallow domes with a mounting flange, depending on the room available behind the trim. Hole geometry, wall between holes, outer profile, mounting holes, notch positions and the position of any etched brand mark are all taken from the customer drawing, so the part fits the existing speaker aperture without modifying the interior component around it.

Where the part is used

• Door panel speaker covers on passenger cars
• Dashboard and centre channel grilles
• A-pillar and headliner speakers
• EV cabin audio and infotainment speaker openings
• Aftermarket audio upgrades that reuse the original trim opening

Material and finish options

• Stainless steel SUS304 and SUS316 for interior and higher humidity exposure
• Aluminium 5052 / 6061 where weight matters more than stiffness
• Copper and brass for acoustic design work
• Brushed, polished, anodised, powder coated or PVD colour finish
• Protective peel film on one or both faces for handling before assembly

What the etching process allows

• Hole sizes and hole-to-hole spacing finer than mechanical punching can hold in thin sheet
• Mixed patterns on one panel: round, slot, hexagon or logo shaped openings
• Burr-free aperture edges, so no secondary deburring step is needed before anodising
• No hard tooling dedicated to one pattern, which keeps drawing revisions practical during prototype stages
• Repeated orders produced from the same digital pattern file, so the aperture layout does not drift between lots

Specification

Drawing review before production

Each enquiry starts with a review of the drawing rather than a standard catalogue part. The points that usually need agreement are the minimum wall thickness left between two openings, the smallest hole the sheet thickness can carry, the flatness the panel must keep after forming, and whether the finish is applied before or after forming. When a customer has no drawing yet, we work from the speaker aperture dimensions and the trim geometry instead. Confirmation of the pattern is made on the drawing or on a first article, whichever the project prefers.

Quality checks on the etched panel

• Aperture size and pitch measured against the approved drawing
• Visual check for incomplete etching, etch step and residual film
• Overall dimensions and mounting hole positions
• Flatness check on flat panels; fit check on formed covers
• Finish inspection before packing (colour, gloss, coating coverage)

Ordering notes

Send the drawing, the material and thickness you need, the surface finish, the quantity for the first order and the destination for the shipment. Price and production schedule are quoted per drawing, because hole density, panel size and finish all change the etching time and the handling needed. Nothing in this description is a fixed offer: every part is made to the customer’s own specification.