With the development of modern manufacturing, the precision requirements for rubber, plastic, and die-casting products have increasingly heightened, rendering traditional manual deburring methods insufficient to meet the needs for efficient and high-precision production. Against this backdrop, the cryogenic deburring machine, as an advanced deburring equipment, is gradually becoming an essential post-process equipment in the rubber, plastic, and die-casting industries.

The cryogenic deflashing machine, fully named the automatic spray-type cryogenic deflashing machine, operates on the principle of utilizing the ultra-low temperature freezing effect of liquid nitrogen to embrittle rubber, plastic, or zinc-magnesium-aluminum alloy products. During this process, the embrittlement speed of the flash (or burrs) is faster than that of the product itself. Therefore, when the flash is embrittled while the product remains unembrittled, high-speed sprayed polymeric particles (i.e., shots) are used to impact the burrs of the product, thereby enabling high-quality and efficient removal of the burrs. This equipment not only maintains all the physical properties of the product itself unchanged but also significantly improves the deburring accuracy and intensification level of the product.

The origin of the cryogenic deburring machine can be traced back to Europe and America in the 1970s, and it was later improved and widely applied in Japan. Today, this equipment has become an indispensable post-processing deburring and burr removal device for precision rubber and plastic products and die-casting enterprises. It can handle small rubber and plastic products, zinc-magnesium-aluminum alloys, and other materials of any shape, particularly suitable for replacing manual deburring of rubber molded parts, precision injection molded parts, and die-cast products.

In practical applications, the cryogenic deburring machine demonstrates numerous advantages. Firstly, it is easy to operate, and ordinary workers can proficiently operate the machine after just half an hour of training. Additionally, an advanced automatic control system prevents misoperations by workers. Secondly, it boasts high production efficiency, with one cryogenic deburring machine capable of handling the equivalent of 50-80 skilled workers’ deburring workload per day. Furthermore, it offers high deburring precision, capable of removing very small and concealed flashings, without being limited by product shape, resulting in a high pass rate and stable deburring quality. More importantly, the cryogenic deburring machine does not damage the surface of the products, improving their appearance quality and service life.

However, the cryogenic deflashing machine also has certain limitations. For example, due to the capacity limitation of the basket, it is not suitable for large parts with a diameter of ≥200mm. At the same time, the need to repeatedly consume liquid nitrogen for each batch change and startup increases costs. To address these issues, improved cryogenic deburring machines, based on the third generation, incorporate auxiliary equipment for automatic filtration and automatic drying of the spray media, making them even more convenient to use.

With the continuous advancement of technology, cryogenic deburring machines are also undergoing constant innovation and improvement. For instance, companies such as Nanjing Zhaoling Precision Machinery Co., Ltd. have achieved remarkable results in the research and production of cryogenic deburring machines, not only enhancing the performance and efficiency of the equipment but also reducing operational costs. Additionally, these enterprises actively promote the application of cryogenic deburring machines, infusing new vitality into the development of the rubber, plastic, and die-casting industries.

Overall, cryogenic deburring machines, as one of the essential equipment in the rubber, plastic, and die-casting industries, have gained widespread market recognition for their high efficiency, high precision, and environmental friendliness. In the future, with continuous technological innovation and market expansion, cryogenic deburring machines are expected to play a greater role in more fields, contributing further to the development of the manufacturing industry.