Key Tips: Food-Grade Stainless Steel for Cap Making Machine Contact Parts

When producing metal packaging caps like threaded aluminum caps and anti-theft caps, hygiene compliance is never an optional choice, especially for food and pharmaceutical packaging lines. As a direct cap making machine manufacturer, we've seen so many export orders stuck due to unqualified material selection, so we'd like to share practical material standards for buyers.

All parts that directly touch metal caps must adopt 304 or 316L food-grade stainless steel, this is the basic requirement for global market access. Compared with ordinary carbon steel, these two stainless steel materials effectively reduce 99% of rust risks, completely avoid heavy metal precipitation and product contamination, and ensure long-term stable operation without material deterioration.

Ordinary carbon steel contact parts are prone to corrosion after 2-3 months of continuous use, which not only pollutes the caps but also makes it impossible to pass FDA, CE and international food safety certifications, directly leading to the failure of export product inspections.

At Yantai Kunpeng Packaging Equipment, all our cap making machines adopt full food-grade stainless steel contact structures, fully complying with international and national food safety standards. Our equipment is perfectly suitable for packaging production of liquor, medicine, edible oil and other food-grade products, helping you smoothly pass various export inspections and avoid unnecessary production and certification risks.