Injection Moulding Machine for Sport Goggle and Eyewear Frames
Sport goggle frames for ski, MX and swim use are made on horizontal injection moulding machines, often two-shot, with a soft TPU face seal on a rigid lens carrier. Frame size and cavities set tonnage, and the lens is a separate part. Cold flexibility matters most, since a frame that stiffens in the cold can crack on impact.
Machine choice depends on whether seal and carrier are moulded together or separately, then on frame size. Where both come from one machine, the process needs a special purpose machine, which Pratishna Engineers builds to application. Single-material frames run on its horizontal machines, and a configuration can be recommended.
Manufacturing Sport Goggles?
Share your frame design, seal and carrier materials, and lens fixing method, and Pratishna Engineers will recommend a machine.
Machine Requirements for Sport Goggle Frame Moulding
A goggle frame has to seal on the face, hold the lens and survive cold knocks. Moulding points to check:
- Bond between TPU seal and rigid carrier grade
- Dried TPU and PC, as both take up moisture
- Lens groove dimensions held for a secure lens fit
- Vent slots filled cleanly without flash at shut-offs
- Low-temperature impact grades for ski and MX frames
- Strap clip and buckle parts on separate small tools
Recommended Machine for Sport Goggle Frames
Two-shot frames with a moulded face seal need a machine built to application, a special purpose build that Pratishna Engineers offers. Single-material frames, lens carriers and strap clips fit the E Series (75-180 T), and larger MX or ski frames in multi-cavity tools can run on C Series (140-320 T) and H Series (120-350 T) machines.
Not Sure Which Machine You Need?
Send your goggle frame design for a machine suggestion.
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.
Special Purpose Injection Moulding Machine Selection Guide
A step-by-step guide covering the key inputs needed to specify a machine built to application: component and process, 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 KBSports & Safety Components & Machine Guide
A guide to Sports & Safety components, covering helmet shells, visors, shin guards, mouthguards, padding, sports goods parts and fitness equipment parts. It explains impact grades, optical PC, two-material parts, and how to match each part to a suitable machine.
Download PDFPDF · 205 KB
FAQs / Buyer Questions
Questions goggle makers ask before choosing a moulding machine.
Which Injection Moulding Machine Is Used to Make Sport Goggle Frames?
Two-shot frames, where seal and carrier are joined in one cycle, need a special purpose machine. Single-material frames and carriers suit the E Series, and larger frames or multi-cavity tools can move to the C or H Series.Is the Goggle Lens Moulded with the Frame?
No. The lens is a separate optical part, moulded in PC or cut from sheet depending on its curvature, then fitted into the frame groove. Frame and lens tools are planned separately.Why Does Cold Flexibility Matter for Ski and MX Frames?
A frame that stiffens in cold weather can crack when knocked. Choose TPU and carrier grades with low-temperature impact data, dry them properly, and test frames cold before approving a new grade.
Are Swim Goggle Seals Made the Same Way?
Swim goggles with TPE or TPU seals can follow the same route. Silicone seals use a different process, liquid silicone moulding, which needs its own machine built to application.Can Pratishna Recommend a Machine for My Sport Goggle Frame?
Yes. Share the frame drawing or sample, seal and carrier materials, part weights, cavity count, mould size and monthly volume, and Pratishna Engineers will suggest a machine.Does the Machine Suit Other Sports Eyewear and Helmet Parts Too?
Yes, with the right mould. Helmet visors, helmet vent and pivot hardware, knee and elbow guard strap hardware and mouthguard frames are close relatives that suit similar machines.
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.
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