At SIGMA Equipment, our team is here to help you find the right equipment to match your specific packaging needs. Whether you’re looking for a single machine or a full system, we can guide you to the right plastics equipment and support your project with shop services that make it easier to upgrade or build a new production line.
PLASTIC INJECTION MOLDING is a method to obtain molded products by injecting plastic materials molten by heat into a mold, and then cooling and solidifying them. The method is suitable for the mass production of products with complicated shapes, and takes a large part in the area of plastic processing. (pool chemical buckets, aerosol caps, plasticware, legos) BLOW MOLDING is a process for forming plastic objects in which plastic is melted, put in a mold, and then shaped by having compressed air blown into it. (Water bottles, shampoo bottles, orange barrels/cones) EXTRUSION is a process of converting a solid plastic mass, pellet or powder into a melted form where it is pushed through a die into a shape. This shape is then moved through various secondary operations where it is cooled then cut, coiled or experiences a variety of other possible operations. (PVC water and sewer pipes, plastic tubing for oxygen, drinking straws) There is a uniqueness to each primary process. Extrusion is continuous, injection molding is discontinuous and blow molding would also be considered continuous.
Start Your ProjectHave more to sell? Learn about SIGMA's equipment selling solutions, including valuation, safe removal, warehousing, and targeted marketing to maximize your equipment's resale value.