Demonstrating an Extrusion Blow Molding Machine on Your Own Plastic
For a 5 L extrusion blow molding machine, insist the demonstration uses your plastic and a representative part, then verify parison control, cycle consistency, and rated capacity against the catalog reference values.
A buyer specifying an extrusion blow molding machine for forming plastic parts up to 5 L should make one decision early: the demonstration must run the buyer's actual plastic and a representative workpiece, not a supplier's standard sample. Ask the supplier to quote a trial using your resin grade and a part close to your intended maximum product volume, and state that acceptance depends on that trial.
In the request for quotation, ask how parison control is adjusted for your material and part, what cycle time the trial achieved, and how scrap and wall-thickness variation were measured. Compare the trial against the catalog reference values: maximum product volume 5 L, maximum PE plasticizing capacity 90 kg/h, clamping force 70 kN, and main screw diameter 75 mm. Treat these as reference figures, not guarantees for a supplied model; confirm the configuration offered matches your material and output needs.
During the demonstration, watch start-up with your resin, parison stability, mold change time, and whether the machine holds consistent parts across a run. Ask for the trial data in writing.
Before requesting a quote, confirm with the supplier which screw and die configuration will be supplied, whether your material was actually run, how trial results will be documented, and what acceptance criteria will apply.