Many briquettes stored in a hall

7 Million Briquettes from Beverage Cartons

300 per hour, 7,200 per day – that’s how many briquettes are regularly pressed from excess cartons and paper dust using a WEIMA TH 714 briquette press at Elopak in Lystrup, Denmark. These briquettes are then used to generate energy in a local heating plant. A sustainable success story that underscores the Scandinavian company’s commitment to environmental protection and circular economy.

Elopak is a global provider of paper-based packaging solutions with a strong focus on sustainable innovations. The special feature: the packaging is mainly made from renewable raw materials such as pulp. 

About ELOPAK

A key focus is on the Pure-Pak® series, which aims to minimize the use of plastic. Elopak is strongly committed to environmental and climate protection by developing packaging that is recyclable and biodegradable. The company works internationally with various industry partners to advance sustainability in the entire packaging industry. 

Briquettes from old cardboard boxes

Briquettes made from old cardboard with a diameter of 80 mm

“We place great importance on reducing plastic consumption and CO2 emissions and support the transition to a circular economy. Our local partner in Lystrup then recommended the briquette press from WEIMA. After a few tests, we were convinced that the press safely and efficiently compacts our beverage carton cuttings,”

says Caspar Bendtzen, Project Manager at Elopak in Lystrup.

WEIMA TH 714 in Aktion

Briquettes with a diameter of 80 mm
Brikettierung von Papierabfällen und -staub mit einer WEIMA TH 714
Eine WEIMA TH 714 Brikettierpresse verpresst Papierabfälle und Papierstaub aus der Produktion von Getränkekartons. Beim Verschließvorgang der Getränkekartons fallen wöchentlich 10-16 Tonnen Produktionsabfälle an, die zu Briketts gepresst werden.
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10-16 Tons of Briquettes per Week

The material residues mainly come from the sealing process, where cartons for liquid food are closed. In this production step, a fine mill is used to shave off excess carton. This inevitably produces kilograms of carton residues as well as fine paper dust. 

 

An auger that transports cardboard cuts to a briquetting press

An auger that transports shredded cardboard boxes to a briquetting press

The cardboard sections are stored in a bunker.

The shredded cartons are stored in a bunker

Energy Supplier from Carton Residues

The WEIMA TH 714 briquette press transforms this material into highly compressed round briquettes with an 80 mm diameter using hydraulic pressure (without adhesives or binders). This results in ten to sixteen tons of briquettes per week. The carton cuttings and paper dust are stored in a bunker and then conveyed via a transport screw and an air extraction system into the feed hopper of the briquetting machine. The finished briquettes then pass through a discharge pipe directly into a container. 

Once the briquettes are pressed, they are delivered to the local heating plant, which uses them to generate district heating. The reason why the briquettes cannot be recycled otherwise is that the beverage cartons contain polyethylene (PE) from production. 

WEIMA briquette press TH 714

WEIMA briquette press TH 714

A real endurance runner from WEIMA for briquetting: The TH 714

“We have been using the machine for a little over three years now, almost continuously, around the clock. The press is reliable and efficient, it works day after day, we have had hardly any maintenance work and thus save a lot of time and capacity,”

summarizes Caspar Bendtzen.

Small cardboard cuttings from beverage cartons

Small cardboard cuttings from beverage cartons

Briquettes with a diameter of 80 mm

Ready-pressed briquettes from cardboard boxes

Many briquettes stored in a hall

Many ready-pressed briquettes stored in a hall

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WEIMA Maschinenbau GmbH

Bustadt 6-10

74360 Ilsfeld

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