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1 Extrusion Dr.
Pawcatuck, CT 06379 US
Study shows that high-speed, single-screw extruder can significantly boost the processing capability of a small-diameter machine for a wide range of applications
Blown film towers may have been scarce, but there was no shortage of new technology aimed at helping to make extrusion processors more profitable.
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.
New, patent-pending design is said to reduce both radiant and convection heat losses.
Long-time extrusion industry executive Sandy Guthrie has started his own recycling equipment company.
By focusing on high-tech, quick-turnaround, turnkey solutions, Putnam Plastics has grown into a leader in the field of medical extrusion.
New twin from Coperion also pumps up output by 30%
Recent upgrades have equipped Davis-Standard's EPIC III extrusion supervisory control system with extensive remote-access capabilities, allowing multiple lines to be monitored via a computer or cell phone from any location.
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.
It was the Fall of 2008.
Green machines may be coming to extrusion.
NPE is typically a competitive display of the biggest, most dramatic equipment machine builders can muster.
Polywood Inc. in Edison, N.J., uses mixed recycled plastics to make fiber-reinforced structural profiles for railroad ties, I-beams, and decks.
The largest cascade reclaim extruder ever built in the Merritt line from Davis-Standard LLC in Pawcatuck, Conn., will be delivered this month to ABC Polymers Inc., a recycler in Stone Mountain, Ga.
Dramatic production demonstrations of cast and blown film set throughput records on the show floor in Dusseldorf.
It’s all about higher speeds and higher outputs at this year’s “K” show in Germany.
On Oct. 30, Chemtura Corp. (formerly Crompton), Middlebury, Conn., sold its majority interest in Davis-Standard LLC, Pawcatuck, Conn., to D-S management and private-equity firm Hamilton Robinson, Stamford, Conn.
An unusual cascade extrusion line for reclaiming large volumes of low-bulk-density polyolefin waste comes from Davis-Standard Corp., Pawcatuck, Conn.
NPE 2006 presented a bevy of features to make film, sheet, pipe, and profile extrusion more efficient.
Throughput capacities are going up for compounding equipment of all types.
Recycling and reclamation are once again hot technologies—this time because of high resin prices.
Injection MoldingSimplified Hot Runners Save Time & CostA new lower-cost hot-runner alternative to valve gating is suited to less critical cosmetic applications where users need predictable and reliable gate opening but not sequential gate operation.
After Davis-Standard Corp. and Black Clawson Converting Machinery merged last year into Davis-Standard LLC, Pawcatuck, Conn., one of their first moves was to unify machine control software and hardware.
Eight years after nine-layer blown films were first introduced, only a handful of processors have mastered the challenges of making them. Machine suppliers are now setting up lab lines that could make entry easier.
There's a new grading system for color concentrates and additive masterbatches.
Machine-direction orientation is still discovering new market opportunities. But the technical difficulties are so great that some big projects never came of age. New equipment could make it easier.
New compounding technologies displayed at K 2004 included some unusual ways to broaden the range of products a twin-screw compounder can make.
The show was packed with new equipment for pipe and profile, including extruders redesigned for higher outputs and/or lower cost, plus new ways to adjust die and calibrator diameters or switch dies and calibrators more quickly.
Silent, space-saving, energy-efficient, and high-torque, a new generation of ring-shaped motors is gaining a foothold in extrusion. A couple of hundred are already in use. Though most machine builders are reacting cautiously, adventurous processors are using them happily.
At K 2004, at least a half-dozen European machine builders will show new direct-drive extruders running gearless—or nearly gearless—drives with substantially higher rpm and output rates than conventional extruders of the same size.
In the hyper-competitive stretch-film market, more layers often mean more market share. Moving from five layers to seven or nine can give an edge through higher performance or reduced cost.
At this year’s NPE, new processes to put wood flour into plastic were virtually everywhere—several even start with undried flour.
For the second straight NPE show, the focus in compounding is on twin-screw machines that deliver more speed and torque—thus more output—than ever before. No fewer than six suppliers of twin-screw compounders are showing such machines. There’s something to see in in-line systems as well. And there’s plenty of news in PVC mixers and pelletizing equipment, too.
NPE will show higher outputs of practically everything, as advances in grooved feeds, servo drives, screw torque, mixing screws, dies, and downstream cooling, cutting, and handling make everything run faster.
New-generation winders for blown and cast film are winding bigger, better rolls at higher speeds and lower tension. They've gotten so fast that cast film lines can now realize their full productive potential.
Gearless extrusion, cryogenic profile calibration, wireless data communications, and automatic start-up of blown film lines are just a few of the new ways to raise efficiency and output that were highlighted at NPE.
Coextrusion is on the increase in tubing for medical uses, with more layers, more exotic materials, and much thinner walls. These require unprecedented levels of dimensional accuracy and flaw detection.