Our axial industrial fans recently stole the show. Our client, one of the worlds largest systems suppliers for the food, drink and pharmaceutical industry won a project to fit cooling to a crab trawler and decided to ask Slingerland for a helping hand!
Our axial fans enabled us to deliver a significant contribution to the project. In many countries, fish and crab are some of the main sources of protein. To secure these important sources of food, a huge fleet of crab trawlers is hard at work out in various oceans. After the crab caught is hauled onto these trailers, it needs to be processed and frozen as soon as possible. As a result, proper cooling is essential, and our hot-dip galvanised axial fans play a major role in this.
Our client was on the lookout for axial fans suitable for operating temperatures between -33 °C to +5 °C for no fewer than three crab trawlers. It goes without saying that these industrial fans needed to be able to cope with the aggressive sea climate and be able to pass the necessary maritime inspections.With that in mind, we rolled up our sleeves!
In the end, Slingerland was able to deliver exactly what our client was looking for. The axial fan casings in question were manufactured to our exact instructions with a panel thickness of 3 mm, an internal diameter of 500 mm and a height of 200 mm. The motor base for the axial fans was fully welded to the casing, with a thickness of 6 mm, and the complete fan casing unit was (fully) hot-dip galvanised.
In addition, a sheet steel inlet cone was fitted to one side of the fan, while a flat flange with a hole pattern was fitted to the other side. The fan impeller was made out of five profiled PAGI impeller blades, ensuring high efficiency and low noise. The hub was manufactured out of cast aluminium and the impeller was fully balanced according to G6.3. All fasteners were made of stainless steel, and our fans eventually proved suitable for temperatures ranging from -40 °C up to +40 °C.
A special finish was required for the motor, as it needed to be suitable for continuous operation at -33 °C in a maritime environment. As such, we fitted our axial fans with a four-pole 2.2 kW motor by leading manufacturer WEG. The motor in question was a 3 x 460 V /60 Hz-IP55 version, suitable for environmental temperatures ranging from -40 °C up to + 45 °C. Finally, the motor came with additional options such as a PTC thermistor per phase, anti-condensation heating, a labyrinth seal, shaft and fastener materials made of Grade 316 stainless steel, an aluminium cooling fan, special lubricant and a C5 painting plan.
Of course, the necessary maritime inspections, such as RMRS and BV, were also arranged. We subsequently assembled the axial fans in-house and tested them extensively. The end result? All the pieces fell into just the right place.
Uiteraard werden ook de nodige maritieme keuringen voorzien, zoals RMRS en BV. Vervolgens assembleerden we de axiale ventilatoren in eigen huis en testten ze uitvoerig. De conclusie? Het plaatje klopte.
Are hot-dip galvanised axial fans the exact solution that your business is looking for? Or have you got a specific project in mind for which you need another type of industrial fan? We’d be happy to sit down to personally run you through the options without obligation! Feel free to contact us any time for more information.
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