Injection Blow Moulding

Injection blow moulding is part injection moulding and part blow moulding. Injection blow moulding is generally suitable for smaller containers. Containers that need handles cannot be made with this process.

Injection blow moulding is a three stage process and involves injecting plastic into a preform where it is transferred to a mould. Air is then blown into this preform to force the plastic to take the shape of the form in the mould.

Schaldor Plastics can produce a high volume of injection blow moulded containers on a daily basis. We can produce injection blow moulded containers in HDPE and polyprop. We can make small- to medium-sized containers to suit your requirements.

Extrusion blow moulding

Extrusion Blow Moulding is the simplest type of blow moulding. A hot tube of plastic material is dropped from an extruder and captured in a water cooled mould. Once the moulds are closed, air is injected through the top or the neck of the container, just as if one were blowing up a balloon.

When the hot plastic material is blown up and touches the walls of the mould the material “freezes” and the container now maintains its rigid shape.
Extrusion Blow moulding allows for a wide variety of container shapes sizes and neck openings, as well as the production of containers with handles.

Schaldor Plastics can produce containers in HDPE and polyprop. Our machines are capable of producing pharmaceutical grade containers in small to large sizes. The containers can also be used to hold chemicals and pesticides. We are also able to create custom container shapes for our customers’ specific container needs.