The special printing plant D.E.S. - a label specialist in the German town of Landau - produces high-quality labels for wine bottles, spirits and cosmetics - a total of 110 million units per year. The offset and digital printing machines in the 2000m2 production hall require a room climate that is as stable as possible, regardless of the time of year. Tolerance range: +/- 2.5°C. This is the only way to guarantee top quality printing.
Following a change of ownership, the printing plant expanded its production capacity from one to three machines. The reliable air conditioning of the production hall is decisive for high print quality: if the printing rollers heat up excessively, the ink liquefies too much and runs; if the air humidity is too high, the printing paper quenches and warps. Production at the company takes place around the clock, five to six days a week, depending on capacity utilisation. Therefore, the new cooling solution had to be installed as quickly as possible.
On a 150m2 gallery, the heating and air-conditioning company Lehnerts & Müller (Wittlich) installed four cooling units, which cool water to 5°C using air cooling.
The water is distributed via a ring pipe on the ceiling of the production hall to two circulating air coolers and to the machines working with plate heat exchangers.
For the main distribution pipe COOL-FIT 2.0 was chosen with a diameter of 63mm and a total length of around 250m. This solution provides a year-round room temperature of 26°C (+/- 2.5°C) and a constant humidity in the range of 40 to 50%.
In addition, manually-operated ball valves type 546 with insulation and flexible hoses were used for connection to the machines, which allow quick installation during ongoing operations.
The customer's need for safety was met by the corrosion-free, steam- and humidity-resistant solution as well as 30% improved energy efficiency. The cooling solution is visually well integrated into the production premises and complies with the desire of D.E.S. for a visually-attractive system.
COOL-FIT 2.0 provides this reliability as part of the cooling solution while helping the company reduce energy costs.
- Reliable room cooling allows high product quality and employee satisfaction.
- Fast installation to ensure the start of production without unnecessary delays.
- Clean installation and permanently visually-appealing solution.