Please visit: Cumberland Engineering Corp.
Mailing Address:
2900 S 160th St.
New Berlin,
WI
53151
US
Phone:
262-641-8600
Toll-Free:
800-299-2919
Fax:
262-641-8653
Designed to handle PVC, PE, or PP pipe up to 47 in. diam. with no pre-cutting.
Torque levels and output capacities of corotating twin-screw compounders coming to NPE are higher than ever.
Ability to be reconfigured for changing needs is one major design concept behind the new T500 Series central granulators from ACS Group, Schaumburg, Ill., parent of the AEC/Nelmor, Cumberland, Sterling, and Colortronic brands, all of which will offer the new models.
A new generation of rugged single-shaft shredders can handle large purgings, fibers, carpets, and other heavy-duty waste.
Many granulators on display at the K 2007 show in Dusseldorf last October were big models—150 to 200 hp—to enable higher throughputs or reclaiming larger parts and chunks. For example, Rapid Granulator from Sweden brought out the 600 model, the largest in its “open-hearted” series, which allow fast access to all internal components. It has a 600-mm-diam. rotor, 100 mm more than the next largest size.
NPE was full of new equipment and systems for recapturing valuable in-plant scrap and post-consumer/post-industrial plastic waste. Recovery of PET packaging and film or fiber waste were particular areas of emphasis, as were lots of new granulators, from the world’s biggest to micro-size and even ‘clean-room’ models.
When Nadim Bahou headed Envipco’s West Coast business of granulating PET bottles through “reverse vending machines” in the early 1990s, he saw there was a shortage of PET grinding capacity in the region.
Recycling and reclamation are once again hot technologies—this time because of high resin prices.
Recent trends to-ward multi-material molding, hard/soft overmolding, and dual-durometer coextrusion create growing volumes of scrap that is difficult or impossible to reuse.
Recycled Resin Prices Flatten OutNew systems to process mixed plastic waste and to upgrade it with fiberglass or wood flour were prominent at last June’s show in Chicago.
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.
Processors with scrap to grind must have noticed the prominence of screenless granulators with distinctive hooked “S-rotor” blades at the NPE show in Chicago.
While most of the new granulators shown at NPE 2000 last month were beside-the-press models, there was also an accent on larger units with an appetite for tough hunks of large-diameter PVC pipe, bundles of textile fibers, and wads of molten bottle flash. Many are configured for “difficult” resins from engineering types to soft TP elastomers.
A batch of new press-side and central granulators introduced at K'98 are designed to cut cleaner and faster. Also new are a washer/dryer for dirty waste and a repelletizer for tough films and fibers.