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Cost-effectiveness for lightweight construction

Cost-effectiveness for lightweight construction
Sophisticated machine and mold technology, production processes ready for large series production and groundbreaking lightweight construction: From September 19 - 21 at the Composites Europe Show in Stuttgart, KraussMaffei is presenting solutions for manufacturing fiber-reinforced plastic components (FRP). Thanks to the wide-ranging expertise in the areas of injection molding and reaction process machinery, KraussMaffei is one of the few providers on the market to provide technologies and systems for processing thermoset and thermoplastic matrix systems from a single source.

Automation drives innovation

- The market for composites continues to develop very dynamically. Important drivers of innovation are automated processes that allow manufacturing that is ready for large series production. In light of this fact, we are continually optimizing our systems and processes while expanding our portfolio - says Erich Fries, Head of the Composites/Surfaces business unit with KraussMaffei. The most recent example is the new iPul pultrusion system, the first complete system for continuous pultrusion of straight and curved profiles. Featuring production speeds up to two times faster than the conventional tub or pull-through process, it opens up completely new markets for pultrusion.

In pultrusion, continuous fibers-usually of glass, carbon or aramide-are infiltrated with a reactive plastic matrix and formed to the desired profile in a heated mold. Grippers pull the cured profile continuously and feed it to a sawing unit. The new iPul system by KraussMaffei encompasses this entire sequence and revolutionizes the technology, which has been common for a long time, in two respects. It encapsulates the infiltration of the fibers, which so far mostly takes place in open vessels, in an injection box, which permits the use of fast-reacting systems (epoxy, polyurethane, polyamide 6). And it increases the production speed from the usual 0.5 to 1.5 meters per minute to approximately 3 meters per minute. The new iPul system had its successful live debut during the KraussMaffei Competence Day Pultrusion end of June.

Five different RTM processes

Short cycle times, high reproducibility and a high degree of automation distinguish the five different RTM processes (resin transfer molding) from KraussMaffei. The HP-RTM (high pressure RTM) process (high pressure RTM) allows the manufacture of extremely light structural components, that also withstand requirements such as the load conditions that exist in a car crash. In the C-RTM process (compression RTM), the addition of resin—usually epoxy resin or polyurethane (PUR)-is carried out in a slightly open mold. Fiber content of significantly over 50% is possible in both processes.


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Leading manufacturer of machinery for plastics processing: Injection Molding Machines; Reaction Processing Machinery, Extrusion Lines