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| 3D Blow Molding Machines
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3D Blow Molding Machines for three-dimensional, convoluted Pipes
Conventional extrusion blow molding of heavily convoluted, three-dimensional tubular shapes, such as fuel tank filler pipes, automotive air ducts, tubes used in household appliances, etc., inevitably results in welding seams at the pinch areas causing potentially large amounts of flash at the mold parting line.
In extreme cases, flash can weigh multiple times the weight of the molding itself. Moreover, very long pinch areas require high clamping forces.
The Kautex Maschinenbau 3D blow molding technologies offer minimum flash production achieving significant savings in material, energy usage, cycle times and, last but not least, in capital spending.
In 3D blow molding, a parison sized according to the article diameter is manipulated by special devices directly into the cavity of the blow mold avoiding pinch areas and welding seams on either side of the article and minimizing overall material usage. The remaining welding seams are reduced to a minimum at both article ends.
As the pioneer in 3D blow molding, Kautex Maschinenbau benefits from many years of experience in this field. Depending on the shape and complexity of the article, Kautex Maschinenbau offers different technologies for small and large volume production of convoluted, threedimensional tubular shapes.
Advantages of the 3D Technology
Higher part quality due to the elimination of welding seams, resulting in:
More uniform wall thickness distribution
No decrease in mechanical properties because material accumulation and/or notches at welding seams are avoided
Use of materials, which do not bond sufficiently at the pinch areas
Processing of short glass fiber reinforced materials, where welding seams could present a problem
Lower regrind content reducing the risk of degradation of thermally sensitive materials and break down of fibers in reinforced materials
Lower flash weight, resulting in:
Lower capital investment because of the use of smaller extruders, lower clamping forces, simple deflashing systems, smaller granulators, smaller blenders and conveyors as well as smaller chillers
Lower operating costs due to the reduced amount of material being processed lowering the power usage of drive motors and heating systems
3D blow molded parts
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