cryogenic deflashing

Cryogenic Deflashing for Molded Parts


Cryogenic deflashing for molded parts removes mold flash from hard-to-reach areas such as cross-holes, blind holes, and other difficult geometries. During the plastic or rubber molding process, flash or flashing can occur anywhere that metal meets metal – especially as mold tooling wears. Plastic and rubber molders can remove these surface defects through hand or manual deflashing, but cryogenic deflashing offers important advantages for higher volumes of parts and more complex parts.

Protecting Surface Quality

Cryogenic deflashing uses gaseous nitrogen to freeze your parts while they are tumbled and blasted with plastic media. This cryogenic treatment embrittles the flash for ease-of-removal but does not change the physical or mechanical properties of your parts. The plastic media, a cryogenic-grade polycarbonate, comes in different lengths and diameters to allow processing without impacting critical tolerances or surface finishes. Except for the removal of flash, your parts will look the same as they did before.  

Comparing Costs

Cryogenic deflashing doesn’t just protect dimensional tolerances and surface finish characteristics. Its advantages can also include a significant cost savings. Hand deflashing is used commonly with lower volumes and simpler parts, but this manual process can require a small army of workers for higher volumes and more challenging geometries. By the end of the fiscal year, the cost of manual deflashing may exceed what a rubber molder would have paid for cryogenic deflashing with the Nitrofreeze® process.   

Ensuring Consistency

Unlike manual deflashing, cryogenic deflashing is a semi-automatic process. An operator loads and unloads the parts basket, but parts deflashing is automated. This ensures the consistent removal of flash from part to part. In other words, molders can eliminate variability across workers, shifts, and even days of the week. Because Nitrofreeze® defines and stores the optimal recipe for removing flash from your molded parts, we can also offer repeatable results with each order that you send us.      

Choose Nitrofreeze® Cryogenic Deflashing

Do you mold high volumes of plastic parts or rubber parts? Do you need to remove flash from cross-holes, blind holes, and other difficult geometries? Watch this video to see how the Nitrofreeze® cryogenic deflashing process works. Then contact the experts at Nitrofreeze® to review your requirements and, if your part is a viable candidate, we can perform sampling to demonstrate the process. The consultation is free of charge. To learn more, contact us at the phone number and email listed below.

(508) 459-7447 x109