The following terms are often used when buying or selling plastic machinery and equipment:
Extruder: A machine that takes raw plastic and melts it down to create long plastic films. Extruders work by adding raw thermoplastic beads into the machine through a hopper. The plastic is melted down and turned by using a large screw. The length of the screw determines how wide the plastic film will be. Extruders are used to produce films, coating, and tubing.
Injection Molders: A machine that forms plastic into shapes by using molding. The plastic is injected in its liquid form into a mold, where it is heated and then cooled. The plastic takes the shape of the mold it is injected into. These machines are used for shaping everything from hair rollers to children’s toys.
Thermoformers: A machine that forms plastic in the shape of a mold. Unlike injection molders, thermoformers heat a strip of plastic until it softens, then place it over a mold using a vacuum. The vacuum forces the plastic to take the shape of the mold. Thermorformers are most commonly used in the food industry, producing plastic cups, utensils, and plates.
Blow Molders: A machine that can create hollow plastic parts. The raw plastic is attached to a tube and heated until it is pliable. Then compressed air is shot through the tube, expanding the plastic and creating an empty area inside. The plastic will take the shape of the mold it is blown into. Plastic bottles are by far the most common objects produced through blow molders.
Producers of plastics make and sell such products for companies that need them. Plastic is a synthetic or processed material that can be formed and molded when soft. It will then set and harden into a variety of objects, such as bottles, bins, and containers. In addition to plastic, companies may also sell sheets, rods, insulation, lights, aluminum panels, tapes, adhesives, PVC materials, cutting machines, parts, synthetics, polyurethane, coatings, resins, polypropylene, polymers, acrylics, foam, and industrial equipment and supplies. Makers of plastic may use a process called injection molding, which produces parts from both thermoplastic and thermosetting plastic materials. How does it work? Molten plastic is injected into a mold at high pressure. Such molds are made from either steel or aluminum. This is the most common method of production, and it's how items like bottles, auto parts and furniture are made. Other processes include microthermoforming and blow molding. In order to make plastics, certain machinery and equipment is needed. Plastics machinery and equipment can include vacuum forming machinery, custom molds, twinsheets, thin and thick sheets, aluminum vacuum molds, blow molding, seals, custom tools, gauge plastics, sheet plastics, pump products, thermoforming equipment, resin transfer molding, injection molding, trim and air systems, hot melt dispensing equipment, and pressure forming custom parts and packaging. You can find companies for your fabrication and engineering needs by looking in your local phone book or by searching online directory listings. Ask others in the business which companies they use and trust for such services and products. Go online to do some research on what plastics machinery and equipment companies typically offer.