Long experience
EXAMPLE 2. HYDRAULIC SYSTEMS Setrab has worked with vehicle heat exchangers, and coolers for industrial applications, since the late 1970s. The competence gained always comes to the benefit of the customer. Our extensive knowledge regarding cal-
culations, dimensioning and choice of production method means that you can always turn to Setrab to discuss ideas and possibilities. A hydraulic system wor-
king at elevated oil tempe-
ratures is subject to unne-
cessary wear. Leakage may occur leading to decreased efficiency which in turn leads to higher operating and maintenance costs and de creases the life expectan-cy of the system. Customer-specific solutions Setrab works actively and close to its customers. We care-
fully study the environment in which the cooler shall work, and for new applications we perform follow-ups in order to document how the cooler is affected.
This working method gives us large experience on the conditions imposed in a number of different installations and is an aid in the continuous development of our coolers.
EXAMPLE 3. INDUSTRIAL COMPRESSORS, AIR COOLING The aim of com-
pressing air is to increase the ability of the air to perform work. This ambition is counteracted by the temperature in- crease of the air during the com-
pression phase. This is true whether it is an industrial com-
pressor or a compressor for a car.
When the air is cooled, its density increases and hence its ability to perform work. The efficiency of the system is increased and thus better operating economy is achieved. Small and medium-sized series Sometimes innovative thinking is required to advance with a design/engineering solution.
In sectors of industry with highly specific conditions, a solution with custom-made coolers can be both technically correct and cost-effective. Numerous application areas By using coolers for engines, hydraulic systems, trans-
missions, compressors and electronics, the durability and efficiency of the system increase as all components can work at their optimal operating temperature.
Brazing process and surface treatment for demanding environments
EXAMPLE 1. ENGINES Setrab has long experience of the brazing process accor-
ding to the Nocolok® method and our coolers are brazed as complete units in computerised
industrial furnaces.
This brazing technique is particularly suitable when a cooler has to be provided with a permanent vibration- and pulse-resistant brazing joint in order to endure in demanding applications. The brazing technique is a further reason why we can produce small and medium-sized series of cost-effective coolers.
To achieve high flexibility in our production we work with several furnaces. An advantage is that we can adjust the environment in the furnace to each cooler size.
In addition to the brazing process, which by itself provides a very good internal and external surface tre-
atment, our coolers receive an epoxy coating to further enhance the outer corrosion resistance and to give the coolers a high surface finish. The task of the oil is to lubricate, to seal, to cool and to protect against corrosion. If the properties of the oil
deteriorate, the consequence is wear and reduced life expectancy. An engine working at excessively high oil temperatures can, if the worst comes to the worst, be subject to engine failure when the properties of the oil are completely or partially deteriorated.