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ADG Solutions showcases new self-cleaning screen changers

By: Heather Caliendo 25. March 2015

Sandy Guthrie, founder and president of ADG Solutions, notices a big change from three years ago at NPE2012.

 

“There is much more awareness of reclaim,” he told Plastics Technology at NPE2015 (W-6754). “Compared to three years ago—even a year ago—it’s a much stronger year.”

 

At NPE2015, the company is featuring its Fimic APR 500, which is a continuous, self-cleaning screen changer that has new control programming as well as a 6” Davis-Standard ram stuffer. Also featured at the booth are separation and washing systems from Tecnofer, shredders from Weima America and densification systems from Promeco SpA. ADGS also announced the first installation of a Promeco system in North America.

 

“We are presenting NPE visitors with new and innovative approaches to reclaiming plastics scrap,” Guthrie said. “It doesn’t matter if it is post-industrial, post-commercial or post-consumer, plastic waste is valuable and it becomes more valuable when you process it correctly.”

 

The Fimic model APR 500 continuous, self-cleaning screen changers, with new control programming, are ideal for contaminated reclaim extrusion streams. In operation, the melt-filtration unit is positioned at the extruder outlet so that it retains contaminates as small as 150 microns. As contamination builds up on the upstream side of the screen, inlet pressure increases to set point (set on the pressure control), triggering a scraper that removes contamination from the face of the screen filter.

 

The new Fimic units store the contaminants from up to six scrapings and discharge all the accumulated contamination at once. This system can cut the amount of resin wasted in the cleaning process by half or even two-thirds.

 

In addition, the new laser-cut screen plates that ensures extremely long life. With a large open area, back pressure is minimized, even at such fine filtration levels. A continuous-scraping mode is available to prevent pressure instability by immediately removing contaminants that can quickly blind the screen.

 

Ram stuffers, similar to the Davis-Standard unit display in the ADG booth, can be added to an extruder to handle a wide variety of plastic feedstock sizes and types. The super-size feed throat maximizes in-feed for consistently high extruder output even when processing low-bulk-density scrap material including fractional-gauge films.

Specialty Olefinic TPE For High-End Cast Power Pre-Stretch Films

By: Lilli Manolis Sherman 25. March 2015

The newest grade in the Vistamaxx metallocene-catalyzed specialty olefinic TPEs from ExxonMobil Chemical is designed for high-performance cast power pre-stretch (PPS) films and makes its debut here at NPE.

 

            When used in the functional layer of cast PPS films, Vistamaxx 6000 is said to provide outstanding ultimate stretch, excellent holding force and tear propagation resistance even at thin gauge. This reportedly contributes to the secure transportation of goods, while helping to reduce waste and cost from damaged products.

 

            “Although the functional layer of stretch film comprises only about 10-15 percent of the total film composition, the intrinsic properties of the material used in that layer are key to performance. Vistamaxx 6000 has been designed to improve stretch film performance in response to market trends,” says global development manager Bill Ramsey. One such trend is the emergence of more mechanized and automated logistics chains, and the growing use of pallets to transport goods. Cost-efficient logistics operation can be made possible by combining the advantage of high-performance films and high-speed wrapping equipment,

 

            End-users are also moving to higher stretch or thinner gauge high-performance films, which can ultimately result in less film weight for the same pallet stability. “In the functional layer of cast PPS films, Vistamaxx combines high stretch with high holding force, exceptional toughness and easy processability for high output. It creates a very versatile film that adds value for both the extrusion and wrapping operation,” says Ramsey.

 

            European stretch film producer Ergis S.A., with a market presence in the PPS segment, has been running Vistamaxx 6000 in the functional layer of a high-performance PPS film. “We are impressed by the film’s excellent processability. Vistamaxx 6000 demonstrates flow right to the edges of the die resulting in excellent web stability and film roll appearance. Also, the film’s properties—ultimate stretch, stretch force and puncture—measured at 300% pre-stretch, were outstanding. The excellent tear propagation resistance provided by Vistamaxx 6000 clearly enables smooth, high-speed wrapping operations,” says Ergis’ managing director Grzegorz Kedzierski.

 

Want to find or compare materials data for different resins, grades, or suppliers? Check out Plastic Technology’s Plaspec Global materials database.

 

 

Transparent Nylons That Can Also Be Used As Additives

By: Lilli Manolis Sherman 25. March 2015

A line of highly versatile semi-aromatic nylons with a unique combination of performance, cost-effectiveness and recycled content were launched by Invista, Wilmington, Del. Moreover, these Novadyn DI/DI transparent polymers can also be used as differentiated blend additives to improve traditional nylon performance. They targeted to bring value to users who require parts that are both transparent and chemically resistant.

 

            “We developed Novadyn DI/DI nylon for transparent applications where polycarbonate struggles with chemical resistance or where more costly transparent polymers may be over-specified. The nylon world in not ‘dry as molded’. In humid environments, Novadyn nylons can boost traditional nylon properties, enable thinner parts, and enhance light-weighting initiatives,” says Allen Reihman, director of new business development for Invista.

 

            As a blend additive for traditional nylons, Novadyn DI/DI nylon significantly improves conditioned mechanical properties for nylons 6/6 and 6, including up to 43% improvement reported in conditioned flexural strength and stiffness.

 

Want to find or compare materials data for different resins, grades, or suppliers? Check out Plastic Technology’s Plaspec Global materials database.

 

At NPE: New ‘Ultra-Fast’ Robots

By: Matthew H. Naitove 24. March 2015

Yushin America, Cranston, R.I., is introducing two Cartesian robots boasting “ultra-high speed” at booth W763. One is the HST-150S (photo), derived from the HSA high-speed models. It’s designed for less than 1-sec takeout times at a “very affordable price.” At the show it demolded 16 packaging frames in less than 0.5 sec for an overall cycle under 4 sec.

 

A brand-new introduction at the show is the HST-600DS robot, making its world premiere. It’s aimed at thin-wall, high-speed, stack-mold applications, and Yushin promises blazing speed.

At NPE: Toshiba Adds New Electric & Servo-Hydraulic Models

By: Matthew H. Naitove 24. March 2015

Toshiba Machine Corp., Elk Grove Village, Ill., kept its NPE plans under wraps until almost show time, but you can have a look at three new machines in booth W1563. One is a new 30-ton size of its high-performance, “super-fast” all-electric ECSX line. The EC30SX is running connectors on a 1.8-sec cycle.

 

Also new are two energy-efficient servo-hydraulic models (with pumps driven by servomotors), the 110-ton TiA220S (photo) and 390-ton ISGS390N. “We plan to roll out a complete lineup of servo-hydraulics later this year,” said U.S. and Canada sales manager Steve Cunningham.

 

All three machines sport the new V50 controller with touchscreen interface and up to 40 optional user-programmable outputs for customizing molding cells without additional OEM programming.




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