Graham Engineering Corporation’s American Kuhne, Welex to demonstration innovations, custom solutions at NPE 2015

New modular extruder design for medical processing that reduces job changeovers to a matter of minutes

Extrusion and blow molding innovations that substantially reduce downtime, save energy, and enhance automation will be on display at the NPE2015 exhibit of Graham Engineering Corporation (Booth W3142). One highlight will be a demonstration of a new modular extruder design for medical processing that reduces job changeovers to a matter of minutes while preserving clean-room integrity.

Graham Engineering Corporation is a convergence of leading technologies and expertise in extrusion, comprising three leading brands: American Kuhne extruders and extrusion systems, Welex sheet extrusion systems, and Graham Engineering extrusion blow molding systems. The company’s focus at NPE2015 is on innovations that enable custom extrusion solutions designed to meet or exceed the specific needs and requirements of a particular customer. Innovations on display will include:

American Kuhne Modular Quick-ChangeTM extrusion system. This system radically reduces change-over time in the clean room and removes the dirty activity from the environment by hot-swapping the barrel, screw, and die head. The modular extruder design allows the removal of the barrel and its replacement by a pre-heated barrel with pre-mounted tooling, all within a few minutes. The process will be a live demonstration at the show.

American Kuhne SMED Quick-ChangeTM design options. These extruder design options minimize change-over time and maximize production availability. Design options displayed on the energy-efficient American Kuhne E3 extruder at the show will include: rapid screw change via quick-mount pusher; fast material change via rotary hopper design; and instant tooling change via dual-hinge design.

Welex XSL Navigator® control system. An example of the synergy across the brands, XSL Navigator® is adapted from the award-winning XBM Navigator® control system, which Graham Engineering has used on its blow molding systems for nearly a
decade. The XSL Navigator now offers intuitive navigation on a Welex line that makes it easy for the operator to set up quickly and work easily with the machine. Built on a ‘soft’ industrial PC, the system also enables processors to integrate data from a machine or line to an ERP system using client-server architecture. Features of XSL Navigator® will be illustrated on the roll- stand of a Welex sheet line.

Welex Converge CTSTM & Welex Hercules® sheet lines. Company representatives will also be available to take visitors through presentations of Welex Converge CTSTM, dryer-less Conical Twin Screw technology for processors running PLA and PET, and Welex HerculesTM industrial sheet lines. Welex Converge CTSTM provides energy savings potential and superior IV retention versus parallel twin screw designs due to its reduced dwell time. In its trial of the Welex Converge CTSTM system, NatureWorks measured virtually no loss of molecular weight through eight passes of its Ingeo® PLA resin.

Graham Revolution MVPTM rotary wheel extrusion blow molder. NPE 2015 marks the commercial launch of the next generation of the flagship Graham wheel technology, Graham Revolution MVPTM, that features an all-new, Modular clamp design as well as a Variable Pitch option. These innovations enable flexibility and configurability to allow a range of package sizes to be manufactured on a single platform. And the modular clamp enables offline maintenance, repair, or replacement of a single clamp station to minimize downtime. The modular clamp design will be exhibited on the Graham High Speed wheel and the variable pitch feature will be demonstrated live at the show.

Graham Engineering Accumulator Head one-hour color or material change-over. The innovative design of Graham Engineering’s spiral flow diverter head enables it to be lifted for easy cleaning. This enables color or material change-over to take place within one hour, saving material vs. conventional change-over that requires multiple, large shots, as well as valuable production time. Visitors can see the spiral flow diverter head in its retracted position as well as a short video of a live change-over.


About Graham Group

The Graham Group acquired majority interest in American Kuhne in 2012, followed by Graham Engineering Corporation’s acquisition of Welex in June 2013. Together, Graham Engineering, American Kuhne, and Welex create a convergence of leading technologies, people, and capabilities in extrusion. Graham is a privately held company headquartered in York, Pennsylvania, USA.

About Graham Engineering

Graham Engineering is the global standard in wheel and industrial extrusion blow molding solutions, with 400 installations in 20 countries. Graham Engineering offers package design, product development and processing expertise, along with monolayer, multilayer, and barrier extrusion blow molding equipment and technology upgrades.

About American Kuhne

American Kuhne is the preferred provider of engineered solutions for plastics, rubber, and silicone extrusion. American Kuhne solutions comprise standard and custom single screw extruders, feed screws, extrusion systems, and specialized turnkey systems for laboratory, medical tubing, narrow web, wire and cable, pipe, tubing, and profile applications.

About Welex

Welex is the global standard in high performance sheet extrusion solutions, with over four decades of leadership. Welex solutions are installed in more than 3,000 customer locations in 69 countries. The company’s innovations include co-extrusion and multi-layer methods that lead the industry as well as dozens of barrier lines installed globally.


Graham Engineering, press release, 2015-01-26.


American Kuhne Inc.
Graham Engineering Corporation
Graham Group Ltd.
NatureWorks LLC
NPE The International Plastics Showcase
Welex Extruders


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