For the production of rubber, rubber-plastic and precision die-cast components, parting-line flash and burrs in inner corners are persistent pain points that undermine finished-part yield and production efficiency. Particularly for FKM (fluororubber), a high-performance special rubber, manual trimming often causes workpiece damage due to its material properties, while conventional polishing struggles to balance efficiency and quality.

STMC cryogenic deflashing equipment adopts liquid-nitrogen-powered ultra-low-temperature technology. It delivers one-stop flash and burr removal for rubber-plastic parts, injection-molded components and zinc-alloy die castings. Compatible with FKM, nitrile rubber, silicone and many other rubber materials, it provides a high-efficiency automated deburring solution for precision-component manufacturing.

The cryogenic deflashing principle works by embrittling part flash under ultra-low temperature, then stripping excess flash precisely via high-speed pellet blasting. The deflashing process will not damage workpieces or alter original material physical properties. It thoroughly cleans burrs on complex-geometry parts, including intricate profiles, inner holes and recessed blind corners.

As demonstrated in FKM sample comparison tests, molded connected blanks processed by cryogenic deflashing feature clean separation, smooth and flat parting lines with zero residual flash. Part contours remain intact without tearing, whitening or material loss. Fully-automated processing supports high-volume continuous production with stable batch-to-batch quality. It greatly minimizes quality fluctuation caused by manual trimming, helping manufacturers cut production costs and lift product competitiveness.

Process Advantages

✅ Complete flash & burr removal without workpiece damage or change to inherent material performance

✅ Handles complex-geometry parts, including irregular profiles, inner holes and recessed blind corners

✅ Automated mass-production with consistent yield and reduced manual dependency

✅ Wide application scope: FKM and other rubber grades, rubber-plastic injection-molded parts, automotive alloy die-cast components

If you are troubled by flash and burr issues on rubber-plastic, injection-molded or alloy die-cast products, feel free to send us samples for free process testing. We will verify real deflashing performance and recommend customized machine solutions for your application.