This customer required a plastic diffuser for use in its floor ventilation system. Of somewhat complicated design, the diffuser presented several engineering challenges including heavy point load requirements, flame retardant specifications and multiple undercut features at extreme angles.

Multiple Action Molds

Our Challenge

Our Solution

Working from the diffuser's existing design, Melet's engineering team fine-tuned the part for injection molding, ensuring that it maintained it's specifications for strength. We then identified the best specialty engineering resin for the client's flammability and mechanical specifications.


HVAC Manufacturer


Plastic Diffuser



About the Project

Design of the tool provided the biggest challenge, as it required no less than 16 external slide actions and 32 internal multi-angle lifter mechanisms for completion. The mold assembly itself was manufactured entirely in Melet's toolroom relying heavily on our advanced CNC wire EDM technology capabilities.



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34 DeBaets Street
Winnipeg, Manitoba Canada R2J 3S9
Tel: (204) 667 6635
Fax: (204) 663 9345

401 27th Street North
Fargo, North Dakota USA 58102
Tel: (701) 364 2844
Fax: (701) 364 2846

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