Adjusting plastic cooling temperature in packaging firm creates savings

© bubak282, image #166423032, source:


Energy Carbon
Manufacture of rubber and plastic products
Investment cost:
Low cost
Low cost
Associated cost savings: Energy
Co2 emission reduction:
3.7 tonnes per year
Size of company:
Small (less than 50)
Advancement in applying resource efficiency measures:

Simple measure packs an energy-saving punch

  • Simple temperature reset cuts energy consumption by 72 200 kWh per year
  • No investment costs
  • Generates € 6 200 savings per year

Founded in 1991, DS Smith Ducaplast is now part of the leading packaging group (DS Smith) and specialises in the production of a three-piece foldable container (FLC). The factory is located in Wormhout, Northern France, and employs 49 people.

Producing the plastic that goes into the containers is an energy-intensive job, so with the help of specialists, DS Smith Ducaplast looked into areas where savings could be made. In packaging production, it is necessary to heat the material to a certain temperature, and sometimes to cool it down rapidly to ensure product quality. At DS Smith, the process of cooling material accounted for 28 % of the site’s electricity consumption.

Temperature settings in the cooling process were conservatively low, so DS SMITH experimented with incremental increases in the plastic set point, gradually raising the temperature by 2°C, while ensuring the production quality. The performance of the cold unit has improved, with energy savings up to around 4 %.

Key results

This simple and cost-effective measure reduced energy consumption by 72 200 kWh per year and delivered net savings of € 6 200 for the plant. At the same time, the energy savings are equivalent to 3.7 tonnes less CO2 emissions per year.

Find partners

within our network for partnering or support in transitioning Join the network !