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PC Industrial Dunnage and Handling Trays Cost Breakdown for electronics and electrical: Where the Money Goes

2026-10-02 Plastic News 3 views

Unit price in thermoforming is dominated by material, cycle time and freight. Here is the full cost structure and the levers that actually move the number.

This guide is written for engineers, purchasers and project managers who need a practical answer, not a resin data sheet.

Product Overview

This category covers a family of products rather than a single item. In practice a buyer defines industrial dunnage and handling trays by three things: the base resin, the format or dimension, and the performance or certification level it has to meet. Typical options in this category include ESD and conductive grades; returnable and reusable designs; stack and nest geometry. Materials most often specified are High Density Polyethylene, Polycarbonate, Polypropylene, Acrylonitrile Butadiene Styrene, and the choice between them changes stiffness, temperature resistance, chemical behaviour and price.

In the electronics and electrical sector the decision is usually driven by ESD protection and dimensional accuracy, with cleanliness as a secondary requirement. Typical end uses include connector carriers, component trays, device inserts.

Key Material Properties

Typical values for a general purpose grade are listed below; filled, stabilised and speciality compounds will differ.

MaterialDensityTensile strengthService temperature
Polypropylene0.90-0.91 g/cm³25-40 MPa-10°C to 100°C
High Density Polyethylene0.94-0.97 g/cm³20-32 MPa-50°C to 80°C
Polycarbonate1.20 g/cm³55-70 MPa-40°C to 120°C

Polycarbonate is frequently the default selection here: PC replaces glass where impact safety matters, but it needs a hard coat for abrasion resistance.

Where the Cost Comes From

Understanding the cost structure makes supplier quotations comparable.

  • Cavity layout: more cavities per sheet cut both cycle time and skeleton waste.
  • Secondary operations: printing, labelling, sealing and packing add labour that is easy to underestimate.
  • Order consolidation: fewer, larger runs reduce changeover scrap and stabilise sheet purchasing.
  • Nesting and stack height: shallow, nestable designs cut freight cost per piece dramatically.
  • Sheet gauge: material is the biggest cost driver, so reducing gauge by 10% often beats a price negotiation.
  • Skeleton regrind: trimmed web can be reground and re-extruded if the material and the customer allow it.

Ask your supplier to quote two gauges and two cavity layouts; the difference shows which lever is worth optimising for your volume.

Common Grades and Variants

  • Polypropylene based: lowest density among commodity plastics
  • Acrylonitrile Butadiene Styrene based: high impact toughness
  • Polyethylene Terephthalate based: excellent barrier to CO2 and moisture
  • High Density Polyethylene based: high impact strength even at low temperature

Beyond the base resin, most suppliers offer UV stabilised, food contact, flame retardant, anti-static and recycled content versions of the same product. Ask which additive package is included, because it is often the difference between a part that lasts three years and one that lasts ten.

Processing and Finishing Options

Each step below has its own control points, and skipping one of them is where most defects start.

  • Thick gauge thermoforming
  • Twin sheet forming
  • Assembly
  • Welding

Secondary operations such as printing, welding, machining and assembly are often cheaper to do in the same factory, and they reduce the risk of mismatch between components.

How to Specify Industrial dunnage and handling trays Correctly

Work through these points in order and most specification mistakes disappear.

  1. define the number of returnable trips expected
  2. specify ESD grade if electronics are handled
  3. design locating features that survive repeated use
  4. validate washing and drying resistance
  5. check stack load and conveyor compatibility

Send this list to your supplier with the drawing and you will receive comparable quotations from every factory you contact.

Frequently Asked Questions

How do you control colour consistency?

Colour is controlled with a masterbatch reference approved by the customer, and every production lot is checked against the approved sample under standard lighting before shipment.

How long does tooling and sampling take?

A new tool typically takes 25 to 45 days depending on cavity count and complexity, followed by T1 samples within one week. Existing tools can usually start production within 10 to 15 days of order confirmation.

Which certifications can you provide?

We can provide ISO 9001 quality system documentation, material certificates, RoHS and REACH statements, and where applicable food contact, flame retardancy or drinking water approvals. Tell us your target market and we will match the document set.

Do you offer samples?

Yes. Standard samples are normally free of charge and shipped within three working days; custom samples are charged at cost and credited against the first production order.

What packing and shipping options are available?

Standard packing is export cartons on fumigation-free pallets, with custom labelling, barcode and retail packing available. We also handle consolidated containers and door to door delivery.

Conclusion

Share your specification and quantity with us and we will recommend the most cost effective material, tooling route and packing method for your market.

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