What Is Web Converting?

Web converting equipment is automated technology that utilizes control systems for high-capacity production — and it has become an essential part of today’s manufacturing processes. Custom converting equipment reduces labor costs and increases production output to help companies meet the challenges of today’s growing marketplace. This article answers the question, “What is web converting?” and discusses common materials and applications that utilize this diverse manufacturing practice.

Web converting is the process of combining materials into intermediate or finished products. Web converting machinery is highly automated and used in conjunction with conversion technology that allows manufacturers to perform essential functions such as coating, printing, laminating, film sealing and roll-to-roll processing. Proper web alignment and tension control are essential to maintain during manufacturing.

Dozens of industries use web converting equipment to create hundreds of different products. Everything from plastic bags to pharmaceutical equipment and electronics uses web converting machinery during manufacturing. There are hundreds of possibilities for your custom converting line. Here are four typical stages of the web converting process for material goods: Laminating, slitting, die-cutting and finishing.

Let’s take a deeper dive into web converting machinery by looking at two of the more common web converting processes: Laminating and coating.

Laminating is a common material converting process where layers are bonded to create a more finished product. In the classroom, a simple form of laminating involves heating plastic and placing a thin layer of it over paper or poster board to give it additional protection and durability. On the other hand, industrial lamination can involve dozens of layers made from several different materials and substrates. Laminating in web converting often occurs at the beginning of the process before materials are cut, printed and finished.

Coating is a similar process where converting equipment applies a protective layer or “skin” onto a product to give the material additional properties that the base product does not have. Coating usually involves a viscous or dry material combined with a liquid to create a protective layer. Powder coating, paints and enamels are good examples of coating products. These are generally applied using a spray nozzle or some other medium at the very end of the manufacturing process. Afterward, the coated product is dried or cured in a prescribed manner.

Both of these processes require rigorous controls to ensure quality and efficiency. Web converting equipment provides that through two main implementations: tension control and web alignment.

Controls are put in place to keep the material at the desired tension as it is fed into the machine for further processing. Without these tension controls, imperfections and inconsistencies would arise during manufacturing. Web alignment is also necessary to keep the materials uniform as they move through the converting equipment. Manufacturers rely on custom converting solutions to handle unique applications or those that require higher levels of regulation and control.