Tube Filling & Sealing Machine Suppliers & Manufacturers

Tube filling and sealing process and applications

A tube filling and sealing machine fills product into collapsible tubes and seals the open tail end. The standard tube-filling process: empty tubes (pre-printed, pre-shouldered with cap already applied) are loaded into the machine's tube holders with the open tail end upward; each tube is filled through the open tail with a measured dose of product from a piston or gear-pump dosing system; the open tail is then sealed by one of several sealing methods; a batch code, production date, or lot number is embossed or printed on the sealed tail. Tube materials and compatible sealing methods: aluminium tubes — the classic tube for pharmaceutical ointments, cosmetic creams, and art paints; aluminium tubes are sealed by mechanically folding and crimping (double or triple fold) the soft aluminium tail; no heat required. LDPE (low-density polyethylene) plastic tubes — the standard for toothpaste, hand cream, and food condiments in modern production; the plastic tail is heat-sealed using hot jaws or ultrasonic sealing. Laminate tubes (ABL or PBL — aluminium-barrier laminate or polymer-barrier laminate) — multi-layer tubes with aluminium or polymer barrier for premium cosmetics, sensitive pharmaceutical products, and food products requiring oxygen barrier; sealed by hot jaw or ultrasonic sealing. Products commonly filled in tubes include: toothpaste and oral care gels; pharmaceutical ointments, eye creams, wound treatments; cosmetic face creams, hand creams, anti-ageing serums; hair colour cream, hair conditioner, styling products; food products — tomato purée, mustard, anchovy paste, mayonnaise in tubes.