Molded medical parts on show at SHI open day

Published: September 11, 2012 6:00 am ET

Related to this story

Topics Medical

SCHWAIG, GERMANY (Sept. 11, 8 a.m. ET) — Injection molding of medical vials was a feature at an open day for Sumitomo (SHI) Demag’s customers which took place at its Schwaig headquarters in Germany in May, attracting more than 400 visitors.

The German-Japanese company demonstrated the application on an all-electric IntElect 50 machine in a four cavity mold from Zahoransky Formenbau of Germany. Four transparent vials were created per shot, each made of a cyclic olefin copolymer (COC) from Topas with a part weight of around 1.2 g in a cycle time of 11 s.

The molding was done in a production cell with integrated six-axis robot. A laminar flow module from Max Petek of provided the quality of air required for category 7 clean rooms.

Sumitomo (SHI) Demag said the need for process consistency, precision and parts quality was met by its technology modules called activeLock, activeDynamics and activeFlowBalance.

ActiveLock is a switchable non-return valve technology which minimizes shot weight fluctuations to enhance quality and precision. Quality also benefits from the activeFlowBalance function, which balances multi-cavity mold filling behavior.

The activeDynamics function has been installed as standard on all IntElect machines since April this year. It is designed to ensure perfectly synchronized motors, frequency converters and machine controls, and so achieves short scanning times of the axle controllers.

The company says it has moved the scanning, which is usually carried out by the machine control, directly into the converter, which forms a unity with the motor.

It said: “This has meant a precisely synchronized unified high-speed communication system has been created which ensures extremely quick and absolutely reproducible reactions by the injection molding machine.”

Sumitomo (SHI) Demag product manager Peter Gladigau said: “The maximum injection speed which can be achieved is frequently referred to as a criterion with regards to electric machines. Yet precisely in the cases of thin-walled precision, smallest or micro-parts with their short injection times, much more crucially important factors apply, such as how steep the acceleration ramp is, that is how quickly the screw can be accelerated so as even to be able to fill certain parts completely.


Comments

Molded medical parts on show at SHI open day

Published: September 11, 2012 6:00 am ET

Post Your Comments


Back to story


More stories

Image

Two medical device makers add specialty products through acquisitions

July 28, 2014 3:02 pm ET

The medical merger mania continues this summer as two more medical device manufacturers are swallowed up by bigger competitors.    More

Image

RxFiber developing new generation of medical fibers

July 23, 2014 1:38 pm ET

Increased concern about patient safety is creating a business opportunity for biomaterial fibers maker RxFiber LLC.    More

Market Reports

Plastics Recyclers Data Report & Directory

This exclusive MS Excel database contains all the companies from Plastics News' ranking of top North American Recyclers and Brokers by reprocessed volume and also includes a directory with materials processes, services offered and company contact information. Data is based on primary research by PN editorial staff.

Learn more

2014 Injection Molding Industry Report

GROWTH, OPPORTUNITY IN SIGHT FOR INJECTION MOLDERS IN 2014

In the wake of the economic turbulence earlier in this decade, molders today find themselves in much better shape. Molders are gaining a competitive advantage by investing in people, equipment and seeking inroads into new markets on a global scale.

Growth in the injection molding industry is going to be driven by low financing costs and a continued move to reshore some business.

Learn more

Shale Gas Market - Analysis of North American Region

This report highlights the impact of shale-based natural gas on the North American plastics market and features an in-depth analysis of production trends in the United States during 2013 and a forecast for 2014 and beyond.

Learn more

Upcoming Plastics News Events

September 10, 2014 - September 12, 2014Plastics Caps & Closures 2014

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

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

More Events