In this video, an operator is using the ST™ capping machine with the optional PST-100ECX capping machine support stand to tighten 28mm closures. The ST™ hand held capping machine is constructed of 316 stainless steel, making it easy to clean, and highly corrosion resistant. For these reasons, it is very well suited for use in laboratory and pharmaceutical bottling operations, where 316 stainless steel is the material of choice. The ST™ capping machine is also well suited for bottlers that package highly corrosive products, such as acids, as 316 stainless steel is one of the few materials that holds up well to acids and other harsh chemicals.