Injection Moulding Machine for LED Bulb Housings and Lamp Bodies
LED bulb housings and lamp bodies are made on horizontal injection moulding machines, often in multi-cavity moulds, from FR PC, PBT or thermally conductive PC and PA compounds. Machine size follows cavity count, shot weight and mould size. For heat-sink housings the critical point is the abrasive conductive compound, which runs hotter and wears screw and barrel faster.
Machine selection for bulb bodies centres on barrel wear, mould temperature control and complete filling of thin cooling fins around the driver space. Pratishna Engineers supplies horizontal injection moulding machines for LED bulb housings and can recommend a configuration for your body, cap or heat-sink design.
Manufacturing LED Bulb Housings?
Share your housing drawing, resin grade and monthly volume, and Pratishna Engineers will recommend a suitable machine.
Machine Requirements for LED Bulb Housing Moulding
A bulb body combines thin fins, a cap seat and a resin that must survive years of driver heat. Points to check when choosing a machine:
- Wear-resistant screw and barrel for thermally conductive compounds
- Higher melt and mould temperatures for conductive PC and PA
- Complete filling of thin fins without short shots
- Dimensional control at the cap seat and diffuser lip
- Drying of FR PC and PBT before moulding
- Separate moulds and machines planned for cap, diffuser and body
Recommended Machine for LED Bulb Housings
Bulb bodies are small parts, so the E Series (75-180 T) handles many single and multi-cavity body moulds, along with the separate cap and diffuser tools. Larger lamp bodies and higher cavity counts can move up to the C Series (140-320 T), and the heaviest family tools to the H Series (120-350 T), with the screw and barrel specified for the conductive compound.
Not Sure Which Machine You Need?
Send your housing drawing and resin datasheet 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 KBElectrical, Electronics & Lighting Components & Machine Guide
A guide to Electrical, Electronics & Lighting components, covering LED bulb housings, driver enclosures, lenses, reflectors, terminal blocks and lamp holders. It explains flame-retardant PC, optical clarity, heat-resistant grades, and how to match each part to a suitable machine.
Download PDFPDF · 201 KB
FAQs / Buyer Questions
Questions lamp makers ask us about moulding bulb bodies and heat-sink housings.
Which Injection Moulding Machine Is Used to Make LED Bulb Housings?
Bulb body moulds usually fit a horizontal machine in the E Series, since the parts are small. Higher cavity counts, larger lamp bodies and family moulds can need the C or H Series. The choice rests on mould size, shot weight and the compound used.Do Thermally Conductive Compounds Wear the Screw and Barrel?
Yes. The fillers that carry heat are abrasive, so a plain screw and check ring wear faster than on unfilled PC. A bimetallic barrel and a wear-resistant screw are usually specified, and the screw is inspected more often.Which Resin Grade Suits a Bulb Body?
FR PC suits plastic bodies on lower-wattage lamps, PBT suits parts that see more heat, and thermally conductive PC or PA can replace the aluminium heat sink in retrofit lamps. Judge the grade on heat-aged properties, since the body sits against the driver for years.
Are the Cap, Diffuser and Body Moulded in One Mould?
No. They are three separate moulds, usually in different resins: the diffuser in a light-diffusing PC grade and the body in FR PC, PBT or a conductive compound. Each mould is matched to its own machine size.Can Pratishna Recommend a Machine for My LED Bulb Housing?
Yes. Share the body drawing or a sample, resin grade and datasheet, part weight, mould size, cavity count and monthly volume, and Pratishna Engineers will recommend a machine and screw and barrel specification.Does the Machine Suit Other Lighting Parts Too?
Yes. The same class of machine can mould LED driver housings, lenses and reflectors, terminal blocks and lamp holders, subject to the mould and the resin.
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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