Injection Moulding Machine for Inhaler Actuators and Spacer Components
Inhaler actuators and spacer components are made on horizontal injection moulding machines, from PP, HDPE, POM or PBT, in multi-cavity moulds for actuators and larger tools for spacer chambers. Cavity count and part size set the clamp. The moulded spray orifice matters most, since its bore controls the plume and the delivered dose.
Machine selection for inhaler parts focuses on steady injection that fills the orifice region the same way every shot, and on close mould temperature control near the orifice pin. Pratishna Engineers supplies horizontal injection moulding machines for actuator and spacer moulding and can recommend a configuration for your parts.
Manufacturing Inhaler Actuators?
Share the actuator or spacer drawing, resin and volume, and Pratishna Engineers will recommend a suitable machine.
Machine Requirements for Inhaler Actuator and Spacer Moulding
An actuator carries a micron-scale spray orifice, while a spacer is a much larger chamber, so needs differ by part:
- Repeatable injection around the orifice core pin
- Flash-free stem block seat for the canister valve
- Antistatic or conductive grades for spacer chamber walls
- Venting at the orifice to prevent short shots
- Platen space and stroke for deeper spacer chamber moulds
- POM and PBT shrinkage control for inhaler mechanism parts
Recommended Machine for Inhaler Actuators and Spacers
Actuators are small and run in multi-cavity tools, so many actuator moulds fit an E Series (75-180 T) or Hybrid PH Series (120-140 T) machine. Spacer chambers and their end pieces are larger and deeper, and those tools often need the platen size and opening stroke of the C Series (140-320 T) or the H Series (120-350 T).
Not Sure Which Machine You Need?
Send the actuator or spacer drawing with cavity plan 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 KBMedical Sector Components & Machine Guide
A guide to Medical Sector components, covering syringes, IV set parts, luer fittings, connectors, pipette tips, petri dishes, test cassettes and device housings. It explains medical-grade materials, clean moulding area needs, dimensional control, and how to match each part to a suitable machine.
Download PDFPDF · 206 KB
FAQs / Buyer Questions
Questions respiratory device makers bring to us before tooling.
Which Injection Moulding Machine Is Used to Make Inhaler Actuators?
A small horizontal machine for the actuator, usually a Hybrid PH or E Series model running a multi-cavity tool. Spacer chambers are bigger parts and move to the C or H Series depending on mould size and stroke.Why Is the Actuator Orifice So Critical?
The orifice bore shapes the spray plume and sets how much drug reaches the patient. A fine core pin forms it, so pin wear, venting and fill consistency are checked cavity by cavity during validation.Which Materials Are Used for Actuators and Spacers?
PP and HDPE are common for actuator bodies and spacer parts. POM and PBT suit mechanism parts that slide or click. Spacer chambers may use antistatic or conductive grades, because static on the wall holds drug particles back.
What Resin Records Do Drug-Contact Parts Need?
Buyers usually ask for each resin lot to be traceable, with a certificate of analysis and extractables and leachables data, because the part touches the formulation. Plan material storage and dryer labelling so lots are never mixed at the machine.Can Pratishna Recommend a Machine for My Inhaler Actuator or Spacer?
Yes. Share the part drawings, resin for each part, cavity counts, mould dimensions and annual volume, and Pratishna Engineers will recommend a suitable machine.Does the Machine Suit Other Drug Delivery Parts Too?
Yes, subject to the mould. The same machines can run autoinjector components, droppers, dosing cups and pharma vial closures, each with its own 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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