Injection Moulding Machine for Charger Housings
Charger housings, the two-part adaptor shells around a power supply, are made on small horizontal injection moulding machines in multi-cavity moulds, from FR PC, FR ABS or PC/ABS. Cavity count and shot weight size the machine. Steady shrinkage matters more than gloss, because the halves are ultrasonically welded and must meet evenly.
For adaptor shells, selection focuses on shot-to-shot repeatability, mould temperature control and clean energy-director edges. Pratishna Engineers offers hybrid and horizontal injection moulding machines suited to charger housing production and can recommend a configuration for your shells.
Manufacturing Charger Housings?
Share both shell halves, the material grade and output target, and Pratishna Engineers will recommend a machine.
Machine Requirements for Charger Housing Moulding
Charger shells must weld closed, pass flame and heat checks, and look clean, so the machine should give:
- Repeatable shrinkage so shell halves weld without gaps
- Sharp, flash-free energy director along the weld joint
- Flame-rated grades handled without overheating in the barrel
- Drying of FR PC and PC/ABS before moulding
- Heat deflection checked at the real internal temperature
- Balanced filling across multi-cavity shell moulds
Recommended Machine for Charger Housings
Hybrid PH Series (120-140 T) machines suit multi-cavity shell moulds where electric injection gives steady shot weight. Smaller adaptor tools run well on the E Series (75-180 T). Family moulds for large laptop adaptor shells, or high-cavity tools, need a bigger press: C Series (140-320 T) first, H Series (120-350 T) where the mould base is wider.
Not Sure Which Machine You Need?
Share your adaptor shell drawings 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 Components & Machine Guide
A guide to Electrical & Electronics components, covering switches, sockets, MCB and RCCB housings, plug tops, meter boxes, solar connectors and electronic housings. It explains flame-retardant and glass-filled grades, thermoset parts, dimensional control, and how to match each part to a suitable machine.
Download PDFPDF · 202 KB
FAQs / Buyer Questions
Answers for charger and adaptor makers planning shell moulding.
Which Injection Moulding Machine Is Used to Make Charger Housings?
Hybrid PH machines lead for multi-cavity adaptor shells, and the E Series runs smaller tools. Bigger laptop adaptor shells and high-cavity family moulds may need C or H Series tonnage.Why Do Charger Shells Fail Ultrasonic Welding?
Shrinkage varies between shots or cavities, or the energy director is rounded or flashed. Both leave weak or uneven welds. Steady moulding conditions and a well-kept parting line fix many cases.Which Material Suits a Fast Charger Housing?
FR PC handles the heat of compact fast chargers well. FR ABS and PC/ABS suit cooler designs, and heat deflection should be checked at the actual inside temperature, not a datasheet value.
Does FR PC Need Drying Before Moulding?
Yes. FR PC and PC/ABS absorb moisture, which causes splay, brittle shells and weak welds. Dry the grade as its supplier advises and keep it dry in the hopper.Can Pratishna Recommend a Machine for My Charger Housing?
Yes. Share the shell drawings, material, part weight, mould dimensions, cavity count and monthly quantity, and Pratishna Engineers will recommend a suitable machine.Does the Machine Suit Other Electrical and Electronics Parts Too?
Yes. Similar machines can mould power bank housings, remote control housings, electric plug tops and mobile phone housings, subject to the specific mould.
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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