Injection Moulding Machine for Component Trays and Dunnage Trays
Small component and dunnage trays are moulded from PP copolymer, HIPS, HDPE or conductive ESD PP on horizontal injection moulding machines, usually one tray per mould. Tray footprint sets projected area and tonnage, and pocket depth sets mould height. Flatness after ejection is the functional requirement, since a warped tray will not nest or feed a line.
Tray moulding puts machine selection on even filling of many pockets, stable cooling for flatness and handling of filled ESD grades. Pratishna Engineers supplies horizontal injection moulding machines for tray production and can recommend a configuration for your tray design.
Manufacturing Dunnage Trays?
Send your tray drawing, material grade and nesting needs, and Pratishna Engineers will recommend a machine.
Machine Requirements for Component and Dunnage Tray Moulding
Trays are flat, compartmented parts that must stack, nest and sit true on automated lines. Points to check:
- Balanced cooling so trays stay flat after ejection
- Even fill across every pocket and divider wall
- Injection pressure for higher-viscosity ESD and conductive grades
- Wear-resistant screw for abrasive conductive fillers
- Draft on pockets for clean ejection and nesting
- Clamp and platen size for the full tray footprint
Recommended Machine for Component and Dunnage Trays
Small trays, and multi-cavity tools for parts trays, can run on the E Series (75-180 T). Wider trays with deep pockets usually need the H Series (120-350 T), with the C Series (140-320 T) as the alternative where its platen area and daylight suit the mould. Tonnage follows tray footprint more than tray weight.
Not Sure Which Machine You Need?
Share your tray size and material grade for a recommendation.
Why Choose Pratishna Engineers?
- Application-Based Machine Selection
- In-House Engineering & Manufacturing
- Multiple Machine Series
- Production-Focused Solutions
- End-to-End Technical Support
- Industry-Specific Solutions
- Machine Lifecycle Support
Injection Moulding Machine Buyer Resources
Download practical resources to help you select, size and specify the right machine.
Horizontal Injection Moulding Machine Selection Guide
A step-by-step guide covering the key inputs needed to select the right machine: product weight, projected area, number of cavities, plastic material, required clamping force, shot / injection capacity, mould dimensions, production quantity, cycle time and automation requirement.
Download PDFPDF · 265 KB
How to Calculate Clamping Force for an Injection Moulding Machine
A clear methodology that explains how clamping force is calculated, covering projected area, injection pressure, safety factor, number of cavities and material considerations.
Download PDFPDF · 363 KBMaterial Handling Components & Machine Guide
A guide to Material Handling components, covering crates, bins, milk crates, lids, label holders, castor wheels, pallet feet and dunnage trays. It explains HDPE and PP, large projected areas, stacking strength, recycled material, and how to match each part to a suitable machine.
Download PDFPDF · 203 KB
FAQs / Buyer Questions
Common questions from buyers of tray moulding machines.
Which Injection Moulding Machine Is Used to Make Component and Dunnage Trays?
Tray size decides it. Smaller trays fit the E Series, and wider or deeper trays move to the C or H Series, chosen by footprint and pocket depth.Why Do Moulded Trays Warp, and Why Does It Matter?
Uneven cooling across a flat compartmented part leaves stresses that bend it after ejection. Warped trays will not nest, stack or feed an automated line, so mould cooling and cooling time are set for flatness.Do ESD and Conductive Grades Mould Differently?
Yes. Conductive and ESD PP grades usually flow less freely and carry abrasive fillers. They need more injection pressure, careful gate sizing and a screw and barrel that resist wear.
How Does Tray Design Affect Return Logistics?
The nesting ratio, how far empty trays sit inside each other, decides how many fit in a return load. Pocket draft and wall angles set that ratio, and both are fixed in the mould.Can Pratishna Recommend a Machine for My Dunnage Tray?
Yes. Share the tray drawing, material grade, part weight, mould dimensions and annual volume, and Pratishna Engineers will recommend a suitable machine.Does the Machine Suit Other Material Handling Parts Too?
Yes. Crate and bin lids, small picking bins, bin dividers and label holders can run on the same machines, subject to mould size.
Technical Disclaimer
Disclaimer: The information provided in this webpage is for general informational and educational purposes only. It is based on technical references and industry information available at the time of preparation and may be subject to change. It does not constitute engineering, technical, commercial or professional advice, nor does it constitute a quotation, specification, warranty or contractual commitment by Pratishna Engineers.
Actual injection moulding machine and process requirements vary according to the component design, material, mould, production volume, machine configuration and operating conditions. The information, examples, calculations and recommendations provided should be independently evaluated and verified for the specific application before making any equipment, process or production decision. Information obtained from third-party sources remains subject to the accuracy and limitations of those sources.
Limitation of Liability: Pratishna Engineers makes no representation or warranty, express or implied, regarding the completeness, accuracy or suitability of the information for any particular application. To the extent permitted by applicable law, Pratishna Engineers shall not be liable for any loss, damage, cost or consequence arising from reliance on or use of the information contained in this webpage. Final machine selection, configuration and application suitability should be confirmed with Pratishna Engineers based on complete and accurate project requirements.
Talk to Our Engineers
Planning a New Injection Moulding Project?
Share your component, material, mould and production target. Our engineering team will help you identify the right machine configuration.
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