5 mm UV stabilised HDPE Hoppers Manufacturer for Marine And Boat Building

These UV stabilised HDPE hoppers are thick gauge vacuum formed parts supplied to drawing for marine and boat building. They are formed from UV stabilised HDPE 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
• UV stabilised HDPE keeps the weight down while stiffness is held through the formed shape
• Hot stamped accents 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
• material certificates with every batch

Typical applications

• battery box liners
• hatch covers
• console shells
• seat bases
• hoppers used across general marine and boat building builds

How it is made

1. The sheet is formed over the mould with vacuum and, where the draw is deep, with plug assist.
2. The part cools on a jig so the shape is held while the material stabilises.
3. Tooling is cut: aluminium for production volumes, composite or printed moulds for samples and first articles.
4. Sheet is dried when the material needs it, then heated to forming temperature on the machine.
5. Parts are inspected, fitted with inserts or hardware if required, packed and shipped.

Material: UV stabilised HDPE

UV stabilised HDPE is the standard answer for outdoor tanks, agricultural hoppers and marine hardware that see direct sun.

Design notes

• use corner radii of at least three times the sheet thickness to avoid thinning
• keep a draft angle of at least 3 degrees on vertical walls so the part releases cleanly
• avoid sharp steps in the mould, which show as chill marks on the finished surface
• add ribs or returns instead of increasing sheet thickness to save weight and cycle time

Finishing and assembly options

• hot stamped accents
• UV stabilised as formed
• anti static coating
• Threaded inserts, PEM fasteners and brackets fitted before dispatch
• Mating parts can be trial assembled before the first article ships

Quality

Sheet thickness is checked on the formed part at the points shown on the drawing, and the readings go into the report. Batch releases carry a dimensional report, material certificate and, where agreed, PPAP or ISIR documentation.

• RoHS compliant grades available
• PPAP or ISIR on request
• dimension reports with every release

Packing and delivery

Each part is bagged, edges protected with foam, then cartonised for container loading. Standard lead time to first article is 2–3 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.

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.

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.

Request a quotation

Send the drawing or a photo of the current hoppers 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.