Corvaglia neck finish uses less PET resin
In the race for weight savings in PET bottles, every gram counts - including material used in the bottle neck.
Corvaglia AG, an Eschlikon, Switzerland, maker of caps, closures and related molds, has designed the "PCO Corvalgia," a preform neck finish that saves 1.5 grams of PET resin in the bottle neck finish. In addition, the material on the cap itself is between 0.7 and 1.2 grams.
The company claims it is the only short neck finish that maintains the distance between the neck ring and the tamper band. That means existing grippers can be used on the filling line.
The PCO Corvaglia is the same height as the three-start, 1-inch "Alaska" finish, which reduces the cost of adapting existing machinery on a filling line.
Also, the company claims the PCO Corvaglia is the only short neck finish with a thread that incorporates more than two full turns, giving better sealing performance than other caps that may have only one full turn.
Corvalgia makes closures and caps for carbonated and still beverages, water, juices, dairy products and edible oil. For the short neck finish design, the company makes three different caps: a 1.8-gram cap for still water and other still beverages, a 2-gram cap and a 2.3-gram cap for carbonated beverages.
Tel. 49-23-5929-96-0, fax 49-23 5929-96-10, e-mail [email protected]
Kreyenborg process cuts energy usage
Kreyenborg GmbH said its infrared drum, or IRD, technology does efficient heating, crystallization and drying of PET resin, with a low level of stress to the material.
The short waves of infrared drying heats up the material from the inside, which cuts energy consumption, Kreyenborg said.
Now, the company has rolled out a new dryer with a new infrared module. Individual infrared radiators use an integrated reflector of aluminum oxide. The lining of the air-cooled module is made of ceramics.
The improvements should increase the reliability and lifespan of the module, Kreyenborg said.
For the controller, the machinery maker is working with control maker BSG Bruckmann Steuerungstechnik GmbH. The controller is an intuitive touch-screen unit with optimized temperature control.
Kreyenborg of Munster, Germany, is targeting the dryer and crystallizer to PET and polylactic acid. The company has sold four IRD machines to PLA producers.
Tel. 49-251-21405-856, fax 49-251-21405-665, e-mail [email protected]
W&H's Easy Change reconfigures quickly
Windmoeller & Hoelscher Corp. of Lincoln, R.I., said its Easy Change job-setting system automatically configures new job parameters much faster than a manual changeover.
Easy Change is designed for use with W&H's Varex blown film extrusion machinery. It adjusts four parameters: film width, film thickness/layer distribution, output and cage height.
W&H ran a demonstration at its Extrusion Technology Center that performed a product change in less than three minutes, vs. 15 minutes needed for a manual changeover.
Tel. 401-333-2770, fax 401-333-6491.
Hellweg granulator handles waste edges
Hellweg Maschinenbau GmbH & Co. KG offers an RC 180 universal strip granulator that cuts into short pieces the waste edge strips from cast film and plastic-coated paper.
The cuttings can be conveyed to another area for downstream processing or disposal.
The double-blade rotor granulator is connected directly by a flange to an extraction pipe, which pulls the edge strips by vacuum.
Hellweg mills the rotor from solid material, so it is balanced while running. That enables precise setting of cutting gaps, so that even very thin edge strips can be processed.
The rotor can run at 3,000 revolutions per minute, to match the high speeds of the fed sheet.
Hellweg is based in Roetgen, Germany.
Tel. 49-24-71-42-54, fax 49-24-71-16-30, e-mail [email protected]
Machine recycles 'fluff' into oil, gas
Global Resource Corp. of West Berlin, N.J., has developed what company officials call a 100 percent emission- and pollutant-free green machine to recycle automotive plastics and foam - shredder residue, or "fluff."
The Hawk 10 uses high-frequency microwave technology to convert fluff - textiles, foams, plastics, rubber and light metal parts from scrap cars - into oil and gas.
The microwaves gasify the materials and convert them into 80 percent light combustible gases and 20 percent oil. The gas then is cycled in a closed-loop system to fuel the next round of material breakdown, without emitting harmful waste, according to Global Resource.
Global Resource said the Hawk 10 also can produce oil and gas from coal, oil shale, bitumen and tar sands.
Tel. 856-767-5661, [email protected]
Stedman's device lessens extra plastic
The Stedman division of Eagle Crusher Co. wants to clear the bases with its Grand Slam Model 3030H, a safer alternative to a band saw for reducing large pieces of rejected plastic parts to go into a granulator.
Model 3030H features an inlet opening of 15 inches by 31 inches, to handle feed sizes up to 25 inches by 18 inches by 9 inches.
The impactor design incorporates both primary and secondary aprons, eliminating the need for grate bars and discharge screens that can clog. A two-stage crushing action reduces more material on first pass, with reduction ratios up to 30:1.
Air cannons and apron heaters are optional.
Stedman, based in Auuroa, Ind., makes vertical and horizontal shaft impactors, case mills, lumpbreakers and fine grind mills.
Tel. 800-262-5401, fax 812-926-3482, [email protected]