Injection Moulding Machine for Plastic Bins
Plastic storage and small parts bins are made on horizontal injection moulding machines from PP copolymer, HDPE or flame-retardant PP, in single or multi-cavity moulds by size. Bin projected area, depth and wall rib layout decide the tonnage and mould height. The open front lip is the main warp risk, so cooling matters.
Bin moulding puts the focus on even cooling, a clamp sized to the base and walls, and enough opening stroke to strip a deep body. Pratishna Engineers supplies injection moulding machines in horizontal and two-platen designs for storage bins, and can suggest a configuration to suit your bin sizes.
Manufacturing Plastic Bins?
Send your bin sizes, material, mould details and monthly volume, and Pratishna Engineers will recommend a machine.
Machine Requirements for Plastic Bin Moulding
Bins are deep, thin-walled boxes with a long unsupported front edge, so flatness and stacking fit drive the machine set-up. Points to check:
- Ribbed front lip that stays straight after ejection
- Even cooling across all walls rather than shortened cooling time
- Nesting and stacking fit checked on moulded bins
- Opening stroke long enough to strip a deep bin
- Clamp force matched to base and wall projected area
- Screw suited to PP copolymer, HDPE and flame-retardant PP
Recommended Machine for Plastic Bins
Mid-size storage bins usually suit the H Series (120-350 T) or C Series (140-320 T), with tonnage taken from base area and depth. The PHM Series (160-350 T) helps when the mould is tall or wide for a toggle machine. Large stacking bins, and bigger sizes run in multi-cavity moulds, need more tonnage and are handled on request.
Not Sure Which Machine You Need?
Send your bin drawing and mould size 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
Points bin makers raise most often with our engineers.
Which Injection Moulding Machine Is Used to Make Plastic Bins?
Bin size decides it. Smaller and mid-size bins often run on the H or C Series, and taller moulds can go on the PHM Series. Large warehouse bins move past these ranges and are discussed on request.Why Does the Front Lip of a Picking Bin Warp?
The open front is a long edge with no fourth wall to support it, so uneven cooling bends it. Ribbing the lip works better than thickening it, which adds sink and cycle time.Can Cooling Time Be Cut to Speed Up Bin Production?
Only with care. Bins ejected too hot often warp and then fail stacking or nesting checks. Gains usually come from the mould cooling layout rather than from a shorter cooling stage.
Are Label Holders and Dividers Moulded in the Bin Tool?
Usually not. Label holders, card holders and dividers are separate small mouldings, often run in multi-cavity tools on a smaller machine than the bin itself.Can Pratishna Recommend a Machine for My Plastic Bin?
Yes. Share the bin drawing, size range, material, part weight, mould dimensions and monthly volume, and Pratishna Engineers will recommend a machine.Does the Machine Suit Other Material Handling Parts Too?
Yes, subject to mould size. Plastic crates, crate and bin lids, dunnage trays and louvre bins can run on the same class of machine.
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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