Injection Moulding Machine for Glue Stick Barrels and Screw Mechanisms
Glue stick barrels and screw mechanisms are made on horizontal injection moulding machines, in multi-cavity moulds, from PP or PS for barrel and cap and POM for the screw and carrier. Cavity count and small shot weights set machine size. Shrinkage control on the thread and carrier matters most, as the carrier must still wind freely after warm adhesive fill.
Selection for glue stick parts centres on repeatable small shots across many cavities and stable shrinkage on the POM thread parts. Pratishna Engineers supplies horizontal and hybrid injection moulding machines for these mouldings and can recommend a configuration for each part in the set.
Moulding Glue Stick Parts?
Share drawings of the barrel, cap, screw, carrier and base with your cavity plan, and Pratishna Engineers will recommend suitable machines.
Machine Requirements for Glue Stick Barrel and Screw Moulding
A glue stick is a set of mating mouldings, and the twist action depends on how well they fit. The main machine points are:
- Repeatable small shots across multi-cavity moulds
- Tight shrinkage control on POM screw and carrier threads
- Barrel bore held to size for a smooth carrier stroke
- Virgin material in the screw and carrier, no regrind
- Clean filling of thin barrel walls without short shots
- Tooling plan for barrel, cap, screw, carrier and base
Recommended Machine for Glue Stick Barrels and Screw Mechanisms
Each glue stick part is small, so cavity count drives machine size more than part size. The Hybrid PH Series (120-140 T) suits multi-cavity screw and barrel moulds where injection repeatability matters. Many cap, carrier and base tools fit the E Series (75-180 T). Larger barrel moulds with more cavities go to the C Series (140-320 T), with the H Series (120-350 T) as an alternative at similar tonnage.
Not Sure Which Machine You Need?
Send the full glue stick part set 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 KBStationery Components & Machine Guide
A guide to Stationery components, covering pen barrels, caps, refills, markers, rulers, sharpeners, clips, ID card holders and desk tools. It explains high-cavity hot runner moulds, clear parts, small mechanisms, and how to match each part to a suitable machine.
Download PDFPDF · 204 KB
FAQs / Buyer Questions
What glue stick makers usually ask before they buy a machine.
Which Injection Moulding Machine Is Used to Make Glue Stick Barrels and Screw Mechanisms?
For multi-cavity glue stick tools, the Hybrid PH Series or E Series is a common starting point. Barrel moulds with high cavity counts are sized up into the C or H Series by their projected area.Why Is POM Used for the Glue Stick Screw and Carrier?
POM gives a low-friction, wear-resistant thread that keeps its shape. The carrier has to travel up and down through sticky adhesive, so a stable, slippery material keeps the twist light.Why Does a Glue Stick Become Stiff to Twist?
Usually the screw, carrier or barrel bore is out of size. Uneven cooling, a changed holding pressure or regrind in the POM parts shifts shrinkage, and the carrier then binds once adhesive is filled.
Can Regrind Be Used in Glue Stick Parts?
Barrels, caps and bases can often take controlled regrind. Screw and carrier parts are better moulded from virgin POM, because regrind varies shrinkage and a stiff mechanism comes straight back as a return.Can Pratishna Recommend a Machine for My Glue Stick?
Yes. Share drawings or samples of each part, the materials, cavity counts, mould sizes and target output, and Pratishna Engineers will suggest machines for the set.Does the Machine Suit Other Stationery Parts Too?
Yes. These machines can also run pen caps, pen refill parts, marker bodies and badge reel housings, depending on the tool.
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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