Injection Moulding Machine for Plastic Buttons
Plastic buttons in ABS, nylon, acrylic (PMMA) and POM are made on horizontal injection moulding machines, usually in high-cavity moulds. Machine size follows the cavity count, the projected area of buttons and runner, and the shot weight. Material route matters first, since polyester and urea buttons are cast or compression moulded rather than injection moulded.
For thermoplastic buttons, machine selection focuses on a repeatable small shot across many cavities, clean colour changes and fine fill at the buttonhole cores. Pratishna Engineers supplies horizontal injection moulding machines for button production and can recommend a configuration for your button range and mould.
Manufacturing Plastic Buttons?
Share your button drawing or sample, material, cavity count and monthly volume, and Pratishna Engineers will recommend a suitable machine.
Machine Requirements for Plastic Button Moulding
Button tools carry many small cavities with fine core pins, so the machine has to hold a small shot steady across all of them. Points to check:
- Fine buttonhole core pins that fill without flash
- Side cores for the sideways hole in shank buttons
- Plating-grade ABS and a polished mould for metallised finishes
- Drying of nylon and PMMA before moulding
- Colour matched to a fabric shade across every lot
- Small, repeatable shot weight across a high-cavity mould
Recommended Machine for Plastic Buttons
Buttons are small, so clamping force is set by the number of cavities and the runner more than by the button itself. Hybrid PH (120-140 T), with electric injection, and the E Series (75-180 T) suit many button moulds. Large hot runner tools, or family moulds carrying several button sizes, can move to the H Series (120-350 T).
Not Sure Which Machine You Need?
Send your button sample and cavity plan for a machine 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 KBGarment & Apparel Components & Machine Guide
A guide to Garment & Apparel components, covering buttons, snap fasteners, zipper parts, cord stoppers, hangers, lingerie hardware, collar stays and tag pins. It explains POM, nylon and PP, high-cavity moulds for small parts, and how to match each part to a suitable machine.
Download PDFPDF · 204 KB
FAQs / Buyer Questions
Questions button makers ask before choosing a moulding machine.
Which Injection Moulding Machine Is Used to Make Plastic Buttons?
A horizontal machine in the smaller tonnage bands is the usual choice. Hybrid PH or E Series machines run many button moulds, and the H Series takes larger hot runner tools where cavity count and runner area push the clamping force up.Can Polyester and Urea Buttons Be Injection Moulded?
No. Polyester buttons are cast into rods or sheets, then cut, drilled and polished, and urea buttons are compression moulded as a thermoset. Injection moulding applies to thermoplastic buttons such as ABS, nylon, acrylic and POM.Which Material Suits Electroplated Buttons?
Plating-grade ABS is the common choice for metallised buttons. The mould needs a high polish, and flow lines, weld lines or gate marks show through the plating, so gate position and melt temperature are set with the finish in mind.
How Is Flash at the Buttonhole Controlled?
Buttonhole pins shut off against the opposite mould half, and wear there leaves thin flash that catches thread. Well-fitted shut-offs, correct clamping force and holding pressure no higher than the button needs keep the holes clean.Can Pratishna Recommend a Machine for My Plastic Button?
Yes. Share your button drawing or sample, material and finish, the sizes in your range, mould dimensions, cavity count and monthly quantity, and Pratishna Engineers will recommend a suitable machine.Does the Machine Suit Other Garment Parts Too?
Yes. Machines in this class can also mould snap fasteners, cord stoppers, lingerie hardware and belt buckles, subject to each mould and material.
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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