PTi Super-G High-Speed Extruders

Company: Processing Technologies International, LLC (PTi)

Equipment Snapshot: Processing Technologies International, LLC (PTi), a leading global manufacturer of high-performance sheet extrusion machinery, has entered the high-speed extruder segment with the launch of its Super-G High-Speed Extruders for the processing of polypropylene (PP) and high-impact polystyrene (HIPS) for the packaging market. The Super-G SGHS3000, which comes in two models, delivers significant performance advantages and overcomes the limitations of competitive products.

“Our new high-speed extruder technology sets a new industry standard because of its innovative and unique design and performance,” said Dana Hanson, president of PTi. “This technology offers our customer base a high-speed solution that delivers improved melt quality as a result of our Super-G Lobe screw technology and is offered integrated with all of our advanced G-Series Configurable roll stand configurations.”

The Super-G SGHS3000-36D is equipped with a 500 hp motor and runs at a maximum speed of 1000 rpm while the Super-G SGHS3000-42D has a 600 hp motor and runs at a maximum speed of 1200 rpm. Each is capable of faster speeds, however, PTi establishes the maximum rated speed based on an upper motor load threshold of 85%. For processing of PP, the Super-G SGHS3000-36D has a production output of approximately 3,000 lb/hr.

In addition to delivering excellent melt quality, PTi’s high-speed extruders feature carbide-lined barrels and Colmonoy hard-faced feed screws versus case-hardened screws as featured on competitive models.

The Super-G high-speed extruders boast an oversized feed section which promotes higher regrind feed rates (up to +70 percent) along with a streamlined feed hopper with support, delivery chute, and tramp metal protection. Other key features include feed screw removal out-the-back of the unit, an easy-cleanout vent chamber, and linear bearing barrel glide support (patent pending). Special air-cooled heater and blower assemblies limit the exterior heater temperature for safety and efficiency purposes (< 110°F) versus competitive models which can be as high as 500° F.

The machine is very energy efficient (i.e.; PP 6-7+ pounds per hour per horsepower) and features a compact footprint of 17.5-ft x 4.5-ft (5.3m x 1.4m) for optimal space utilization.

The Super-G High-Speed Extruders are manufactured in the U.S. at PTi headquarters in Aurora, Ill. A Model SGHS3000-36D will be ready later this spring for demonstrations and customer trials at PTi’s newly constructed Technology Development Center. In order to meet customer service needs, PTi offers a comprehensive offering of technical services including installation support, process engineering, and operator training along with an extensive spare parts stocking program.

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