TPO Light Housings Vacuum Formed in 5 mm for Truck And Bus

These TPO light housings are thick gauge vacuum formed parts supplied to drawing for truck and bus. They are formed from TPO sheet at 5 mm, trimmed on 5-axis routers and inspected against the drawing before packing. Buyers choose this route where a metal fabrication is too heavy, or where injection moulding tooling cannot be justified for the volume.

Product specification

Key features

• One piece shell replaces a fabrication, so assembly hours drop
• TPO keeps the weight down while stiffness is held through the formed shape
• Pad printed logos finish as standard, further finishes on request
• Trimmed on 5-axis routers, so mounting holes and cut outs match the drawing
• Tooling stored against the part number for repeat and spare orders
• food contact declarations available

Typical applications

• bunk liners
• engine tunnel covers
• interior trim panels
• stepwell panels
• light housings used across general truck and bus builds

How it is made

1. Trimming is done on 5-axis routers or with a dedicated trim fixture to meet the drawing.
2. Sheet is dried when the material needs it, then heated to forming temperature on the machine.
3. Parts are inspected, fitted with inserts or hardware if required, packed and shipped.
4. Drawings are reviewed and a manufacturability report is issued with wall thickness, draft and radii marked up.
5. The sheet is formed over the mould with vacuum and, where the draw is deep, with plug assist.

Material: TPO

TPO sheet is used where the part lives outdoors: it stays flexible in the cold and resists UV without a coating.

Design notes

• hold the draw ratio near 1:1 for deep parts, or specify plug assist
• call out the finish on the drawing: mould texture, paint, or as-formed gloss
• keep a draft angle of at least 3 degrees on vertical walls so the part releases cleanly
• plan the trim line on a flat face so the router can hold tolerance

Finishing and assembly options

• pad printed logos
• silk screened markings
• anti graffiti coating
• Threaded inserts, PEM fasteners and brackets fitted before dispatch
• Mating parts can be trial assembled before the first article ships

Quality

First article inspection covers critical dimensions, wall thickness, colour and texture against the approved sample. Moulds, trim fixtures and programmes are stored against the part number, so a repeat order matches the first batch.

• REACH compliant sheet available
• RoHS compliant grades available
• material certificates with every batch

Packing and delivery

Large panels are crated in made to measure wooden cases with corner protection. Standard lead time to first article is 3–4 weeks, and repeat releases ship against stored tooling without a new proving run.

Frequently asked questions

What quantity can I order?

Sample quantities start at one piece off printed tooling. The process pays back from about 25 pieces a year and runs well into several thousand.

Can you make it in another material?

Any grade in this family can be swapped in. Send the requirement and the material will be quoted with the price difference shown.

How fast is the first article?

Seven to fifteen working days from drawing release for sample tooling, with production tooling in three to four weeks.

Request a quotation

Send the drawing or a photo of the current light housings with the quantity and the finish required. The reply covers material choice, wall thickness, tooling route and price, so the decision is made on a complete picture.