Injection Moulding Machine for Power Bank and Consumer Battery Pack Housings
Power bank and consumer battery pack housings are made on horizontal injection moulding machines, as two shells or a sleeve with end caps, from flame-retardant PC/ABS, FR ABS or PC. Machine size follows shell length, thin wall flow and cavity count. Stable shrinkage at the ultrasonic weld joint is the process point that matters most.
Selection for these housings focuses on fast fill of thin flame-rated walls, good melt mixing and repeatable shrinkage from shot to shot. Pratishna Engineers supplies horizontal injection moulding machines for power bank housing production and can recommend a configuration for your shells and mould.
Manufacturing Power Bank Housings?
Share your shell drawings, flame-rated grade and joining method, and Pratishna Engineers will recommend a machine.
Machine Requirements for Power Bank Housing Moulding
Battery pack housings hold lithium cells inside thin cosmetic shells that are often welded shut, which brings these requirements:
- Flame-rated PC/ABS or ABS around the lithium cells
- Repeatable shrinkage at ultrasonic weld joint faces
- No regrind in shells that carry the weld joint
- Screw design and back pressure that mix PC/ABS evenly
- Fast injection into long thin walls without short shots
- Gloss or soft texture across the large outer face
Recommended Machine for Power Bank and Battery Pack Housings
Pocket power banks and small pack shells usually run two or more cavities on the E Series (75-180 T). Longer shells, laptop-size packs and family moulds for both halves suit the C Series (140-320 T). The H Series (120-350 T) comes in where the mould is wide or thin walls need more clamp margin.
Not Sure Which Machine You Need?
Send your shell set and grade data sheet 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
Questions power bank and battery pack brands ask their moulders.
Which Injection Moulding Machine Is Used to Make Power Bank Housings?
Pocket power bank shells usually fit the E Series. Larger consumer battery packs and family moulds for top and bottom shells move to the C or H Series, sized by shell length and mould width.Why Is Regrind Avoided in Welded Housings?
Ultrasonic welding needs the joint faces to meet at the same height every time. Regrind changes shrinkage and melt behaviour, so the weld can come out weak or uneven. Virgin material is kept for weld-joint parts.What Causes Pearlescence on PC/ABS Shells?
Pearlescent streaks and weak weld lines appear when the PC and ABS phases are poorly mixed or the melt is sheared too hard. Correct back pressure, screw speed and dry material keep the blend uniform.
Can the Shells Be Snap-Fitted Instead of Welded?
Yes. Some designs use snap fits or screws so the pack can be opened for service. Snap hooks in PC/ABS need enough draft and generous radii, while welded designs depend on stable joint geometry.Can Pratishna Recommend a Machine for My Power Bank Housing?
Yes. Share the shell drawings, grade, joining method, mould dimensions, cavities and monthly volume, and Pratishna Engineers will suggest a suitable machine.Does the Machine Suit Other Consumer Electronics Housings Too?
Yes. Similar machines can mould charger housings, mobile phone housings, UPS housings and router housings, depending on the mould and grade.
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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