Plastic Cap Sealer Buy a cost-effective, high-quality plastic cap closing machine to seal bottles with airtight, water-tight, and thief-proof caps. plastic cap closing machine are made up of plastic and can easily fit into the glass, plastic, and PE bottles of varying sizes. Sold by Smart Pack, a reliable and trustworthy company that provides complete packaging solutions, the machine works at a speed of a little less than 1200 caps per hour. Suitable for cosmetic, chemical, medical, and beverage industries, the machine is easy to use and delivers its best every time. The plastic cap closing machine weighs about 65kgs and runs on a 220v power supply. The cap diameter turns out to be 25*40 mm.