OEM and custom fabrication is where PET acoustic factories actually differ. Anyone can quote a stock 2440×1220×12mm sheet. What a factory can cut, match, label, and repeat six months later is the real capability.
This guide sets realistic expectations for CNC cutting, custom colours, private labeling, and prototyping when you source directly from a Chinese PET panel manufacturer.
What CNC can actually do
Standard work is V-groove and U-groove, perforation, and simple die-cut silhouettes. Repeatable alignment across a wall of panels is the skill — not a one-off logo. Send a CAD file with groove spacing, depth, and panel map. We quote, cut a sample, and wait for approval before the bulk run.
- V-groove / U-groove on 12–25mm stock
- Round or slot perforation with a stated open area
- Custom outlines from a 2D drawing (not every 3D sculpture)
Deep 3D carving, furniture-grade edges, and mixed-material assemblies are possible but they are not “sheet price plus a little CNC.” Ask for a sample of the actual machining, not a brochure photo.
Custom colour
Stock libraries are large; custom dye lots are not free-flow. Typical custom colour MOQ is in the hundreds of square metres, with a lab dip and a production sample before bulk. Reorder matching six to twelve months later is a process, not a promise — keep leftover chips and the batch code.
Private label and packaging
Carton marks, your logo on packing lists, and neutral (unbranded) packaging are normal for export. Printing a full brand story onto every panel face is a different job. Say what the carton must show for customs and what the site team must read on opening.
Prototyping speed
A5 colour chips are fast. A CNC sample panel is slower because it occupies a machine and needs a drawing. A full pre-production sheet from the actual colour lot is the right gate before a large order — not a skippable courtesy.
What to send: drawing or reference, thickness, quantity, colour (stock code or target), fire rating, and whether this is a one-off feature wall or a repeatable OEM part. Vague “can you do custom?” emails get vague answers.