SML introduces new PET sheet system

By Bill Bregar
Senior Staff Reporter

Published: April 10, 2013 8:47 am ET

Related to this story

Topics Product News

SML Maschinengesellschaft mbH has introduced a sheet extrusion system for thermoforming, called FlexiPET.

FlexiPET allows the production of virgin PET, recycled PET bottle flake, PET film and sheet regrind and other polymers such as polystyrene, high impact polystyrene and polylactic acid.

The machine can process more than 2,200 pounds of PET an hour, at a maximum sheet width of 36 inches and line speeds of up to 230 feet per minute.

SML has opted for a conical twin-screw extruder design, which the company says incorporates advantages the advantages of both co-rotating twin-screw and conventional single-screw extruders. A high-volume feed section can handle even very low-density, recycled material.

Because conical extruders have a short design, melting takes place in the segment on front of the first barrel venting, so residual water has very little time to break down the PET molecule chains. And according to SML, the combination of that feature with a strong vacuum and a second venting section means the PET suffers only a minimal loss of intrinsic viscosity.

The conical design of the screws results in a low-volume pressure section, so the pressure generated is more like that of a single screw than a parallel twin screw, and you can feed the melt directly into a back-flush filter.

The new line is equipped with a new winder combining the advantages of cantilever and shafts, winder carriages and friction winding.

SML is based in Lenzing, Austria.

Tel. 011 43 7672 912-0, email sml@sml.at.


Comments

SML introduces new PET sheet system

By Bill Bregar
Senior Staff Reporter

Published: April 10, 2013 8:47 am ET

Post Your Comments


Back to story


More stories

Plastics Machinery Group now offering injection presses

September 26, 2014 10:46 am ET

Solon, Ohio-based Plastics Machinery Group is expanding its machinery offerings by adding injection molding machines to its inventory and adding a...    More

Developments in capstocks for appearance, mechanical properties

September 26, 2014 10:40 am ET

Thermoforming Conference attendees learned the latest about capstocks, to improve cosmetics and mechanical properties of sheet.    More

Image

Swiss thermoforming machinery firm WM Wrapping setting up US office

September 25, 2014 2:21 pm ET

Thermoforming industry veteran Kent Johansson has a new gig: Running a U.S. facility for Swiss sheet line and thermoforming machinery maker WM...    More

Thermoformers may benefit from centralized pumps

September 25, 2014 2:02 pm ET

The thermoforming industry has grown up using individual vacuum pumps on each machine for vacuum forming, but companies should consider centralized...    More

Recycled PP gets food contact approval

September 24, 2014 10:36 am ET

KW Plastics reports one of its recycled polypropylene grades has been approved by the U.S. Food and Drug Administration for food contact at levels of ...    More

Market Reports

Plastics in Mexico - State of the Industry Report

This report analyzes the $20 million dollar plastics industry in Mexico including sales of machinery & equipment, resins and finished products.

Our industry analysis highlights macro industry trends and micro trends faced by companies that do business in Mexico. The report also provides key industry statistics and forecasts to anticipate future industry expansion.

Learn more

Plastics Caps & Closures Market Report

The annual recap of top trends and future outlook for the plastics caps & closures market features interviews with industry thought leaders and Bill Wood’s economic forecast of trends in growing end markets. You will also gain insight on trends in caps design, materials, machinery, molds & tooling and reviews of mergers & acquisitions.

Learn more

Injection Molders Market Report & Ranking 2014

This special package contains our 132-page 2014 Market Report on the Injection Molding segment and our exclusive 2014 RANKINGS database of 500+ Injection Molders for a discounted package price.

Learn more

Upcoming Plastics News Events

January 14, 2015 - January 14, 2015Plastics in Automotive

February 4, 2015 - February 6, 2015Plastics News Executive Forum 2015

June 2, 2015 - June 3, 2015Plastics Financial Summit - Chicago 2015

September 16, 2015 - September 18, 2015Plastics Caps & Closures - September 2015

More Events