Extrusion molding machines for plastic are used to create plastic objects with a fixed cross-sectional profile. A single screw extrusion molding machine has a rotating screw within a heated barrel. Plastic pellets are fed in through the hopper, and the friction of the rotating screw in addition to the heating elements melts the plastic as it is pushed forward and eventually exits in a unique shape through the die on the other end.
Different types of downstream components may be added to create an extrusion that fits your needs. These include water baths for cooling, puller, cutters, pelletizers for forming plastic pellets of uniform size and shape, etc. Machinery Center offers many types and sizes of extrusion molding machines to create any type of extruded product with any unique profile you may require.
From Wikipedia, “Extrusion molding is a manufacturing process used to make pipes, hoses, drinking straws, curtain tracks, rods, and fibre. The granules melt into a liquid which is forced through a die, forming a long ‘tube like’ shape. The shape of the die determines the shape of the tube. The extrusion is then cooled and forms a solid shape. The tube may be printed upon, and cut at equal intervals. The pieces may be rolled for storage or packed together. Shapes that can result from extrusion include T-sections, U-sections, square sections, I-sections, L-sections and circular sections. One of the most famous products of extrusion molding is the optical fiber cable. Extrusion is similar to injection molding except that a long continuous shape is produced.”
For more information on Injection molding Machines or other machines you might need please see our article about What Type of Plastics and Metal Machinery do I Need?
We strive to offer a variety of extruders with different specifications; so whether you need an air-cooled or water-cooled barrel, temperature readouts, pressure sensors, tachometers, or other readouts for fine-tuning your individual process, or other desired characteristics, we have the equipment to match your needs. We carry a variety of new and used 1″ to 6-1/2″ Extruders from manufacturers including Davis Standard, Toshiba, Farrel, HPM, and NRM.
Interested in Injection Molding Machines? Get more information at Injection Molding Machines Guide
Interested in Blow Molding Machines? Then get more information at What are Blow Molding Machines?