1203 Eden Rd.
York, PA 17402 US

A brand of Graham Engineering Corporation


As Seen In Plastics Technology

What's New in Extrusion at K 2019

K 2019 Preview: Green's the Theme in Extrusion & Compounding
Themes of sustainability and the Circular Economy will be visible at the booths of many suppliers of extrusion and compounding equipment—film, in particular.

Aerial view of rPlanet Earth

Under One Roof: Innovative Recycler Closes the Loop
rPlanet Earth looks to disrupt the plastics recycling industry by creating a truly sustainable, closed-loop system for recycling and reuse of post-consumer plastics, with reclaim, sheet extrusion, thermoforming and preform making all in the same plant.

rPlanet Earth Co-Ceos

rPlanet Earth Opens Vertically Integrated Recycling Plant In California
Among a range of reclaim and polymer processing systems in place at the Vernon plant are three Welex sheet lines supplied by Graham Engineering Corp. and equipped with EDI extrusion dies and BKG melt delivery components from Nordson Corp.

Impact Plastics Welex extrusion line

Making an Impact In Thin-Gauge Sheet
Creating a ‘virtually integrated supply chain’ that connects it with suppliers and customers has helped Impact Plastics add value to a wide range of sheet products, with a growing emphasis on PP.

Extrusion Veteran Jim Nissel Retires from Welex
James Nissel grew up in and around Welex since its inception in King of Prussia, Penn. in 1966.

EXTRUSION AND COMPOUNDING NPE: Flexibility, Speed and Quality
Extrusion processors need more—of everything—to compete. And suppliers responded in force in Orlando.

As in speed, power, quality, flexibility, layers, and efficiency. Those are the trends across all extrusion processes.

Extrusion/Compounding at K 2013: Having It All
Extrusion processors no longer need to chose among speed, quality, and flexibility, based on exhibits at K 2013.

K 2013 Preview: Extrusion, Compounding, Recycling
Across all extrusion technologies, expect to see new standards in speed, quality, flexibility, and efficiency in both energy and material usage.

Graham Expands Into Sheet with Welex Purchase
Machine building to move to York, Pa.

IML Groundbreaker Adds Sheet Extrusion
In-house sheet production allows Tech II to vertically integrate to hasten product development, control costs.

New Option for No-Dry PET, PLA Sheet
New twin-screw system is based on a conical design.

Packaging Powerhouse Does It All
Materials formulation, cast and blown film extrusion, sheet extrusion, printing, and laminating come under one roof at this processor.

Extrusion & Compounding at NPE: Advances Push Efficiency Envelope
Blown film towers may have been scarce, but there was no shortage of new technology aimed at helping to make extrusion processors more profitable.

Extrusion & Compounding at NPE: More Output, More Flexibility, Less Energy
There won't be many blown-film lines running, but there is still much in the way of innovation going on in extrusion and compounding.

Rolls and Cut Sheet
Whether producing mono- or multi-layer sheet, many sheet extrusion systems produce rolls of finished sheet, or stacks of sheet that has been cut-to-length.

Sheet Extrusion Line
A sheet extrusion line consists of an Extruder (single or twin screw), equipped with a Screen Changer and a Gear Pump, followed by a Static Mixer (sometimes feeding a Coextrusion Feedblock that is preceded by one or more additional extruders sets as described above), feeding a flat sheet die.

K Show Report: Nanos Are The Rage
Flat film and sheet toolmakers are focusing on technologies for nanolayer systems.

Thermoset polyimide medical tubing

Industry & Technology News - December 2010
Novel TPE/Polyimide Medical Tubing Through a special manufacturing process, TPE tubing with one or more lumens is being extruded inside thermoset polyimide medical tubing.

EXTRUSION & COMPOUNDING: Five-Layer Film Structures Set to Supplant Three Layers?
In blown film, equipment and material suppliers have come together to push five-layer technology into non-barrier applications previously held by three-layer films.

Cullom's Convac System

Extrusion at NPE 2003
NPE is typically a competitive display of the biggest, most dramatic equipment machine builders can muster.

Product Categories of Welex

Coextrusion Dies, Feedblocks
Multiple-screw Extruders
Sheet Take-off Systems
Single-screw Extruders
Web Slitters
Web Winders, Unwinds, Rewinds

Trade Names

Welex Converge CTS(tm) Sheet Lines
Welex Evolution® Sheet Systems
Welex Hercules® Industrial Lines
Welex XSL Navigator® controls