In the production and processing of rubber components, Chloroprene Rubber (CR) is widely applied in the manufacturing of seals and damping parts due to its outstanding weather resistance and oil resistance. Nevertheless, its high inherent toughness creates persistent difficulties in flash removal, which has long troubled numerous manufacturers. Traditional manual trimming with cutters is time-consuming and labor-intensive. It results in continuously high labor costs, carries high risks of scratching product bodies, and makes defect rates hard to control, acting as a bottleneck restricting production capacity growth.
To tackle the common industry challenge of removing mold parting lines and edge burrs on CR products, STMC provides proven cryogenic deflashing solutions. The core principle of cryogenic deflashing is to rapidly embrittle surface flash on rubber products under low-temperature conditions. High-speed media blasting then breaks thin flash for automatic separation, while fully preserving the original performance and appearance of the rubber substrate.
Compared with conventional manual trimming, this process delivers remarkable advantages. For highly tough CR chloroprene rubber, fine burrs and raised mold parting lines can be thoroughly removed in a single run, eliminating the inefficiency of manual trimming with cutters. It supports large-volume automatic processing, greatly shortening production cycles and steadily cutting product defect rates. CR seals processed via cryogenic deflashing feature smooth and neat contours with drastically improved consistency, bringing stronger market competitiveness in surface quality.
STMC has specialized in the cryogenic deflashing industry for over 25 years, focusing on burr removal technology for rubber, plastic and alloy workpieces. Our equipment and process solutions serve thousands of manufacturers worldwide, with products exported to more than 20 countries. Apart from chloroprene rubber, the cryogenic deflashing process can handle flash removal for workpieces made of EPDM, TPU, silicone, zinc-aluminum-magnesium die castings, plastic injection moldings and many other materials.
If you are plagued by low efficiency and high reject rates when removing burrs and parting lines on rubber goods, you are welcome to send samples for testing to witness the automatic flash removal performance of cryogenic deflashing.
For more information about cryogenic deflashing machines or to book a free sample test, please contact us:
Post time: Aug-04-2026
