SPECIFICATION
How Blow Molding Technology Works
There are three types of blow molding processes: extrusion blow molding (EBM), injection blow molding (IBM), and injection stretch blow molding (ISBM). Plastic blow molding typically starts with a parison, a tube-like preform element that is blown up like a balloon to assume the shape of the mold, such as for a plastic container.
An injection blow molding machine uses a double-station process as the preform has to be molded in a separate stage. However, with extrusion blow molding systems, raw materials are heated and extruded into a continuous tube from which the final products are formed. This single-station approach results in faster cycle times and lower overall cost.
Our blow molding machines are designed for numerous raw materials, including:
Polyethylene (PE) – the most common plastic
Polypropylene (PP) – slightly harder than PE but part of the same family of plastics
High-density polyethylene (HDPE) – petroleum-based polyethylene thermoplastic
Other materials
At Shenghe Machinery, we offer equipment with accumulator heads for high output as well as advanced control systems for optimizing production parameters like extruder speed, plasticization, pressure, clamping force, wall thickness, and surface finish.
