Our hot-dip galvanised fans recently proved to be the perfect investment to meet the high standards of mushroom cultivation. In this industry, it is crucial for the perfect circumstances to be created in order to facilitate optimal growth of crop. Read all about how our hot-dip galvanised centrifugal fans effectively helped out our client below.
The Slingerland hot-dip galvanised fans were recently deployed for mushroom cultivation. Growers of greenhouse crops and mushroom farms face complex ventilation challenges. Proper indoor climate control is key to their revenue. That is why fan systems in such growth installations must promote healthy and disease-free growth of crop under the most optimal circumstances.
Accurate control of temperature, air humidity, CO2-levels and air circulation is key. Combined with the need for low energy consumption and low maintenance costs, these requirements pose a serious challenge. Both the quality and performance of these ventilation systems are subject to strict requirements. Luckily, Slingerland is the place to be for high-quality industrial ventilation systems, in this case hot-dip galvanised fans.
Mushroom cultivation is a delicate process with many stages that requires perfect balance and timing from start to finish. Only then can successful results be achieved. Regular mushrooms need perfect circumstances and controlled growth to allow the farmer to meet market demand in time and at the lowest possible cost. The associated challenges depend on the installation setup and the farmer’s individual preferences. In addition to different process fans, the ventilation designs may contain functionalities such as heat recovery, ammonia washers, biofilters and even aroma treatment.
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With no less than 96 large axial fans, we recently contributed to the construction of a pig slaughterhouse in Mexico. More specifically, it involved a freezing tunnel where carcasses would be stored. Our customer was looking for a bespoke solution for their construction and found it in the axial industrial fans by Slingerland. Read all about it below.
Our axial fans recently proved to be the ideal solution for an important project. Our client, one of the world’s largest systems suppliers for the food, beverage and pharmaceutical industry won a project in Mexico. The project? Build a large pig slaughterhouse including axial fans for a freezing tunnel to freeze carcasses.
The challenge was to find large axial fans that could be wall mounted. After all, they would pull the air over a cooler block and blow it into the freezing tunnel with no less than 96 fans.
Eventually, we found the perfect solution for this client which we completely assembled in-house. A metalworking company specialised in the flange rolling of casings up to 2400 mm in diameter produced axial fan casings on our specific request.
These axial fan casings had a thickness of 4 mm, an internal diameter of 800 mm and a length of 300 mm. The motor mount was entirely welded onto the casing and had a thickness of 6 mm. Everything consisted of standard steel that was hot-dip galvanised afterwards.
The fan casing was fitted with an inlet cone on one side and a flat flange on the other. Since all fixing materials were also hot-dip galvanised, the axial industrial fans were suitable for temperatures between -30°C and + 40°C.
The impeller of the axial fan was made of 3 profiled impeller blades of PAG and fully balanced according to G6.3. The impeller hub consisted of untreated cast aluminium and was fitted with a shaft hole of Ø28H7.
The motor of these hot-dip galvanised axial fans was a custom design as well. These axial industrial fans were fitted with a four-pole 4.5 kW motor of the brand WEG. This was a 3x460V 60Hz motor fitted with a B3 terminal box IP55 and insulation class F bearings.
The motor of these axial fans featured idle heating, PTC sensors for each phase and was resistant to the aforementioned operating temperatures. Finally, it boasted a Labyrinth Taconite shaft seal (for a temperature of -30°C), with Aeroshell 22/Mobil Polyrex EM low-temperature grease.
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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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Our customer has extensive experience with HVAC systems for the offshore industry; an industry often dealing with extreme weather, tropical environments with high temperatures and humidity levels to extremely cold conditions with very low temperatures. In this case, it was a project in the North Sea. The fans that we supplied were used to cool the transformer rooms and ventilate the other rooms.
At Slingerland, we work with our customer to develop tailor-made solutions for any type of vessel, construction or facility. We have extensive experience on board almost all types of ships. We are not afraid to think outside the box and include customer specifications in custom offshore fans, no matter how demanding.
In this case, a combination of free-running centrifugal fans and axial fans with both short and long housings was chosen. A number of models are made in ATEX.
Our axial fans were constructed from materials suitable for an offshore application. Housing for the fan and the motor foundation are made of stainless steel 316, pickled and passivated. The very solid and efficient plastic impeller is equipped with an anodized aluminum hub which is then provided with a maritime coating. Operating points for these fans vary from 70 m³/h, 150 pascals to 41,000 m³/h, 500 pascals. Diameters range from ø310mm to ø1000mm.
The fans with the size ø1000mm are intended for the main transformer room, they are provided with special reinforcements for horizontal installation on vibration dampers. All flange connections are customer-specifically produced according ISO15138, for easy connection to the ductwork. Fans are provided with stainless steel 316 mesh grille, mounting material in stainless steel 316, motor support thickness of 6mm, fan housing thickness of 4mm. Suitable for temperatures from -15°C to +50°C. The fans are equipped with motors varying between 0.12kW-4p and 15kW-4p in marine version with a special C5/CX coating system, stainless steel 316 shaft, space heaters, stainless steel 316 mounting materials, adapted terminal box, PTC sensors, and executed according to DNV-GL with mention on stainless steel type plate.
Our free-running centrifugal fans were completely made of stainless steel 316, both the impeller and the motor base frame. The entire construction is afterwards shot blasted. Furthermore, the suction cone is provided with a measuring point. The fans are suitable for operating temperatures from -10°C to +45°C. The operating point in this case is 10,000 m³/h, 1434 pascals. Fans have a flexible connection with stainless steel 316 flanges. Furthermore, the fans are equipped with a 7.5kW motor in marine version with a special C5/CX coating, stainless steel 316 shaft, space heaters, stainless steel 316 mounting materials, adapted terminal box, PTC sensors, and executed in accordance with DNV-GL with indication on stainless steel name plate.
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Our customer develops machines for the food industry. In the food industry high demands are placed on the material properties of the parts and components.
Robust, corrosion-resistant and easy to clean materials are required, which do not change either the taste or the color of the products on contact with food. Corrosion-resistant stainless steel possesses these properties. Therefore, stainless steels such as 1.4401 or 1.4404 are widespread and popular materials in the food industry.
A factory specialized in the development, production and marketing of high quality pet food for utility, sport and companion animals needed an extra production line for pet food.
In the production process, ingredients are mixed in mixers and cooked after which they are transported to a drying line to be cooled by air before they are packaged. In the past they used plastic drying fans with a standard steel coated motor. Because of the intensive cleaning cycles of the machines, the motors had to lead heavily and the lacquers started to come loose. These lacquers straightened out in the process and as a result they rejected the final product.
The customer was therefore urgently looking for a solution to this problem.
For this customer we have developed a fan completely made of stainless steel. So not only the fan housing, bolts and nuts are in stainless steel. Also the motor is complete in stainless steel. A beautiful result that fully complies with today’s strict standards in the food industry.
In general, stainless steel fans are often used in sectors such as pharmaceuticals and the food industry, where corrosion must be avoided. Hygiene is the main reason for this. We have an extensive range available in stainless steel. Contact us for advice without obligation on + 31 (0)33 465 13 92 or use the contact form.
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