Injection Moulding Machine for Mobile Phone Housings
Mobile phone housings, the mid-frame and back cover, are made on precision horizontal injection moulding machines with fast injection, in PC, PC/ABS, glass-filled PC or glass-filled PA6. Very thin walls need high injection pressure and speed. Many mid-frames are insert moulded over a metal frame, so insert placement and shrinkage over metal decide yield.
Machine selection for phone housings centres on injection speed and pressure response, shot repeatability and how inserts are loaded. Pratishna Engineers supplies horizontal and hybrid injection moulding machines for mobile phone housing parts and can recommend a configuration for your mould.
Moulding Mobile Phone Housings?
Share the mid-frame or back cover drawing, material, insert details and cosmetic grade, and Pratishna Engineers will suggest a machine.
Machine Requirements for Mobile Phone Housing Moulding
Phone housings combine thin walls, metal inserts and a show surface that buyers inspect closely, so the machine needs:
- Fast injection and high pressure for very thin walls
- Accurate insert loading over metal frames and antenna carriers
- Gate and vent design that avoids blush and burn marks
- Weld line placement away from the cosmetic back face
- Drying of PC and PC/ABS to prevent splay
- Mould temperature control for gloss and low stress
Recommended Machine for Mobile Phone Housings
The Hybrid PH Series (120-140 T), with hydraulic clamping and electric injection, suits back cover moulds that need repeatable fast fill. The E Series (75-180 T) covers smaller single and two-cavity tools. Mid-frame insert moulds with larger mould bases, or multi-cavity covers, step up to the C Series (140-320 T), with the H Series (120-350 T) for the biggest mould bases.
Not Sure Which Machine You Need?
Send your phone housing mould details for a recommended machine and setup.
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 phone housing moulders ask about machines and process.
Which Injection Moulding Machine Is Used to Make Mobile Phone Housings?
A precision horizontal press with fast, repeatable injection. Hybrid PH machines lead for back covers, E Series machines suit small tools, and larger insert moulds move to the C or H Series.How Is a Metal Mid-Frame Insert Moulded?
The metal frame is placed in the mould, often by robot, and plastic is moulded around it. Insert location, preheating and the different shrinkage of plastic and metal must be controlled to avoid stress and warp.What Causes Rejects on a Phone Back Cover?
Weld lines, flow marks, gate blush and splay from undried PC. Gate position, venting, mould temperature and injection profile are set to keep these off the show face.
Why Use Glass-Filled PC or PA6 for Mid-Frames?
Glass fill adds stiffness for a thin frame that carries the screen and battery. It needs a wear-resistant screw and barrel and careful gate design to control fibre orientation and warpage.Can Pratishna Recommend a Machine for My Mobile Phone Housing?
Yes. Share the part drawing, material, wall thickness, insert details, mould dimensions, cavity count and volume plan, and Pratishna Engineers will recommend a suitable machine.Does the Machine Suit Other Electrical and Electronics Parts Too?
Yes. Similar machines can mould charger housings, wearable components, remote control housings and power bank 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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