Injection Moulding Machine for AC Grilles
AC grilles, including front panels, discharge grilles and return grilles, are moulded on horizontal injection moulding machines from ABS, HIPS, PP or PC/ABS. Grille footprint sets the tonnage even though the part is light. Venting and gating matter most, because the melt knits around every slot and weld lines decide strength.
Machine selection for a grille focuses on platen area for a wide, flat mould, clamping force for the full footprint and flatness after ejection. For AC grilles, Pratishna Engineers can recommend a horizontal or two-platen injection moulding machine and a configuration to suit the mould.
Manufacturing AC Grilles?
Share your grille size, material, flame rating and mould details, and Pratishna Engineers will recommend the right machine.
Machine Requirements for AC Grille Moulding
A grille is a large, light, perforated part with a visible face that must sit flat on the indoor unit. Selection depends on:
- Clamping force for the full grille footprint
- Platen area and tie-bar spacing for wide moulds
- Venting at every slot to strengthen weld lines
- Class A face without flow marks or gate blush
- Flame-rated grade for indoor unit panels
- Flatness after ejection to avoid rattle and gaps
Recommended Machine for AC Grilles
Smaller discharge and return grilles fit the H Series (120-350 T) or C Series (140-320 T). Wide front panels with deeper frames suit the Two-Platen PHM Series (160-350 T), which gives more mould space. Large frames needing force above these ranges are discussed on request after a review of the mould.
Not Sure Which Machine You Need?
Send your grille drawing and mould size for a tonnage check.
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 KBWhite Goods & Appliances Components & Machine Guide
A guide to White Goods & Appliances components, covering washing machine tubs and panels, refrigerator liners and trays, AC louvres and grilles, fan blades, mixer bodies and appliance housings. It explains large-part moulding, cosmetic finish, flame-retardant grades, and how to match each part to a suitable machine.
Download PDFPDF · 204 KB
FAQs / Buyer Questions
Questions grille buyers bring to our engineers before tooling.
Which Injection Moulding Machine Is Used to Make AC Grilles?
The H, C or PHM Series, chosen by grille footprint and mould size rather than part weight. Smaller grilles sit in the mid tonnage range, while wide front panels may need the upper end or a larger press.Why Are Weld Lines a Problem on AC Grilles?
Melt splits around each slot and rejoins behind it, so a grille carries many weld lines. Poor venting traps air at those joins, leaving weak, visible lines that can crack when the grille is clipped on.Does an AC Grille Need a Flame-rated Grade?
Indoor unit panels are often specified in a flame-rated ABS or PC/ABS. These grades need careful drying and melt temperature control, since overheating can cause burn marks and colour shift on a white face.
How Is Grille Flatness Controlled?
Balanced gating, even mould temperature on both halves and enough cooling time before ejection keep the grille flat. Ejector pins spread across the frame stop the part bending as it leaves the mould.Can Pratishna Recommend a Machine for My AC Grille?
Share the grille drawing or sample, material and flame rating, part weight, mould dimensions and production volume, and Pratishna Engineers will recommend a suitable machine.Does the Machine Suit Other Air Conditioner Panel Parts Too?
Yes. These machines can also produce AC louvres, blower scrolls and fan housings, door handles and exterior trim, and appliance bezels, depending on the 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.
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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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