Post-Extrusion Processing

Post Extrusion

A wide variety of additional processes can be applied to rubber extrusions. Some of these operations may be completed by standard or custom devices added inline to the extruder. Alternatively, post-extrusion processes can be performed offline by people and/or additional equipment at the extrusion facility. Common examples of post-extrusion processes include:

  • Punching – holes and slots of assorted shapes and sizes can be punches in extruded parts for fasteners, venting and alignment.
  • Cutting – extrusions are cut to a specific length, either finished product length or for convenient shipping purposes. Tighter tolerances can be achieved as well as angles or mitres with an offline cut. Fly cutters and guillotines can be used to cut smoother or shorter lengths of extrusion very quickly.
  • Printing – printing numbers inline offers traceability options. Identifiers such as websites, phone numbers, time and date, lot/batch, patent I.D. numbers and in some cases, barcodes can be added to the parts.

Additional post-extrusion processes that are carried out at Walker Rubber are:

  • Drilling – like the punching process, holes and slots can be drilled into extrusions. This method is capable of handling thicker materials than the punching process.
  • Moulding corners – joining extrusions to produce corners for applications such as container door seals and window seals.
  • Riveting – specific extrusions can be riveted to other materials to produce specialist products, such as our roll out bank ladder.
  • Grinding – extrusions can be grinded to achieve a specific surface finish and to add custom features.
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