Blocked blow molding system offers energy savings

Jessica Hobrook

Published: February 27, 2012 6:00 am ET

Related to this story

Topics Packaging, Sustainability, Materials, Blow Molding, Molds/Tooling, Product News, NPE 2012

LAS VEGAS (Feb. 27, 12:05 p.m. ET) — With rising energy and material prices, many companies are looking for ways to cut costs without sacrificing quality.

KHS Corpoplast GmbH recently introduced its blocked blow molding system — a combination blower, filler, and capper unit that can be used in PET applications.

The InnoPet Blofill blocked system is designed to increase efficiency and cut costs, said Bj"ern von Lengerke, general sales manager for KHS, during a presentation at The Packaging Conference.

“You can blow your own package and you can fill it right away in line. By doing so, you can reduce the packaging costs and increase the advantages on the logistics side,” he said in a Feb. 7 presentation at the Las Vegas conference.

The system connects the blower directly to the filler and capper unit, cutting out the air conveyer, bottle rinser and other components. Instead, a multi-functional star wheel conveys the bottles from blower to filler by way of a transfer block. The block separates the dry blow molder from the wet filler and includes an airlock with constant air flow.

“You make sure the wet side, the humid side from the filling side isn’t entering the stretch blow molder, because the stretch blow molder doesn’t like that,” von Lengerke said.

The base system can be used for water or other non-carbonated soft drinks and can make up to 72,000 bottles per hour.

With some modification, the system can also be used for carbonated beverage applications and hot fill applications at 185-190° F.

A cooling system – a star wheel equipped with a set number of spray nozzles – can cool bottles bases from approximately 167° F to 131° F. This eliminates the risk of stress fracturing, which is a common deterrent to using blocked systems, von Lengerke said.

“There are less and less arguments against blocked systems like this,” he said.

The cooling system can be modified based on production needs, is efficient and has low water consumption, he added.

The Blofill blocked system can make several bottle types at maximum speed, giving users a flexibility that was not available with previous blocked models, von Lengerke said. New heating technology also cuts down on start up time and reduces pre-form losses.

Temperature restrictions can make the system difficult for some hot fill applications in the US, but with some adjustments can be used for a variety of juices, teas, and other drinks, he said.

Because blocked systems like the Blofill eliminate the traditional air conveyer, they have several advantages over standard systems, von Lengerke said.

The machine can handle delicate light-weight pre-forms, even in hot-fill applications. The design also saves space and uses less energy, an important consideration in plants in Europe and Asia, and companies can save on human resources costs because the system only requires one operator, he said.

The blocked blower and filler unit may be less efficient than separate blower and fillers, but standard lines are limited by their least efficient component – often the air conveyer, von Lengerke said. In these cases, blocked systems can be more efficient than traditional ones.


Comments

Blocked blow molding system offers energy savings

Jessica Hobrook

Published: February 27, 2012 6:00 am ET

Post Your Comments


Back to story


More stories

Red Wave machine helps sort 4,000 metric tons of mixed plastics recycling

July 30, 2014 11:00 am ET

Redwave, the Austrian manufacturer of optical sorting machines for recycled plastics, supplied a line for the IMOG sorting facility in South West...    More

Herbold system removes foreign materials from recycling machine

July 30, 2014 10:55 am ET

Herbold Meckeshneim GmbH has developed an affordable, simple solution to remove foreign material that enters recycling machine, such as metal parts...    More

Image

EMS Chemie wins Norma Group's first global recognition award

July 30, 2014 10:11 am ET

Norma Group a Maintal, Germany-based maker of engineering joining technology, bestowed its first-ever Global Recognition Award for 2014 to EMS Chemie ...    More

Nitrofreeze launches dry ice deburring

July 30, 2014 10:09 am ET

In this steamy summer weather, here comes Nitrofreeze Cryogenic Solutions from Worcester, Mass., a maker of cyrogenic plastic deflashing and dry ice...    More

Software helps design heater band needs

July 30, 2014 10:07 am ET

You can use 3-D CAD drawings to design your heater band needs, at Heat and Sensor Technology in Lebanon, Ohio.    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