Chiller hire keeps news on track

Tremendous heat is generated in web-offset printing presses due to the friction between the various mechanical parts and the friction between rollers, plates, blankets and substrates. Also, heat generation changes with printing conditions. As a press accelerates from idle to a fast printing speed it consumes a lot of energy and generates a lot of heat which requires a considerable amount of cooling. Demand stabilises when the press reaches its production speed.

By using a centralised water supply system, temperature controlled through the on-site chillers, the newspaper print house was able to ensure delivery of a constant, fast flow of cooling water through each of the chill rollers on their multi-press installations.

Temperature control of the water tank was crucial. When the print house began to lose control of the water temperature due to faulty chillers print output was under threat.  In this competitive business, loss of a day’s production can have long term consequences involving lost readership.

With no immediate and speedy repair of its own chiller imminent, the company called upon the services of Andrews Chiller Hire, an organisation renowned for delivering prompt solutions. Its nationwide network of depots and extensive chiller range puts the company in an extremely strong position to deliver viable solutions for virtually any chiller requirement or application.

At the newspaper print house four chillers where supplied and installed in phases to match demand.  Initially two 550kW units were supplied, however as demand for further cooling grew Andrews supplied an additional two 750kW units. These gave a massive boost to the cooling cycle as they are capable of reducing fluid down to -12oC. With all units positioned in-line and interlinked, they created an ultra-fast cooling cycle for many hundreds of litres of water.

During the print process heated water is drawn from the presses and passes directly through the chillers, this in-line combinations helps accelerate the cooling rate, presenting cold water much faster to the main supply tank from where it is drawn back for applying cooling to the printing presses.

The Andrews Sykes Chiller Hire range has been developed to provide a fast and efficient solution for many applications that require high volumes of cooling capacity. An advantage of these high capacity fluid chillers at the print works is that they are air cooled. Since they do not require a permanent water supply it simplifies installation and on-going operational performance.  

The 550kW and 750kW fluid chillers are part of the extensive Andrews Sykes Chiller Hire fleet which includes a complete range of temperature control equipment and ancillaries to satisfy a wide variety of cooling requirements both in commercial and industrial buildings. The company has more than 25 depots and offers client support 24/7.