At a large biogas plant in Belgium, the process air had to be removed and then reused in a subsequent drying process. These 2 fans were placed between the chemical air scrubber and a biobed.
We were recently asked by a customer if we could provide a solution for an installation to extract process air from a chemical air scrubber into a drying process. From the biogas plant, they were extracting the hot air and later wanted to use it to dry liquid digestate fermented out on a belt dryer into a dry organic manure pellet.
These heavy-duty centrifugal fans are partly made of stainless steel 304 sheet material, only the motor seat is made of normal steel and is coated. The customer was looking for a fan that could move 80,000 m3/h of air with a back pressure of only 800 pascals. The process air temperature could reach a maximum of 30° Celsius. The fan is equipped with a split housing to allow easy maintenance. The fan features backward-curved profiled blades. This high-efficiency impeller enabled us to use an electric motor of only 45kW and realise a power consumption of only 31kW.
Below is a brief description of the technical design of the fan:
WEG E-motor 45kW – 6p
Fan is frequency controlled
Fan housing fitted with an inspection hatch
Fan housing fitted with condensation drain 1″
Fan scroll external chain glass
Product contact parts made of stainless steel 304
Motor base made of steel S355J2
Class III impeller made of stainless steel 304
Impeller with backward profiled blades
Coating system motor seat A120 RAL5012 T°C <120
Minimum/maximum mechanical medium temperature: -10 to 40°C
Fan incl. motor provided with IIA declaration
Fixing materials SS304
Impeller balanced according to G2.5 including balance report
Discharge position: 1x RD270 1x LG270
Maintenance and operating instructions in Dutch language
Fan is delivered in transportable parts
Slingerland Techniek understands that it is difficult for companies to indicate exactly what they are looking for. To provide companies with the best possible service, we look at the business situation together. The possible solutions are then discussed so that we can solve your business problem in full consultation.
Do you recognize yourself in this problem and would you like to discuss your own situation with our specialists? Then contact us today!
Industrial fans are used in a variety of applications. In this case we describe fans used in the industrial furnace industry. There are many different types of furnace applications, think of: Annealing furnaces up to 800°C, tempering furnaces up to 300°C, forging furnaces up to 1200°C. Furnaces can be heated electrically or with burners. In electric ovens, radiation elements or convection elements can be used. For burner ovens, natural gas, propane or oil burners can be chosen. Slingerland Techniek also offers many different solutions for this industry, such as plug fans for recirculation or centrifugal fans with special cooling fans or high-quality temperature-resistant paint.
In this case, the customer designed a furnace installation to powder coat materials. The temperatures here could reach 350°C. They needed a total flow rate of 8300 cubic meters per hour and had to be able to build up a static pressure of 296 pascals.
In this case, we offered a belt driven centrifugal fan with a fully insulated housing. The design is belt driven so that the motor would definitely not come into contact with the extreme temperatures. The black coating is special for the high temperatures. Furthermore, the fan is equipped with a graphite seal and the impeller is manufactured from corten steel.
Slingerland Techniek understands that it is difficult for companies to indicate exactly what they are looking for. To provide companies with the best possible service, we look at the business situation together. The possible solutions are then discussed so that we can solve your business problem in full consultation.
If you have any questions, we are happy to help. You can reach us at +31 (0)33 465 13 92 or by filling in the contact form.
Our integrated centrifugal ventilators, version 5, recently proved to be indispensable in the production process of dust filters. Several crucial factors had to be taken into account, and in such cases, there is no better point of contact than Slingerland! Read here how we successfully resolved a challenge for a satisfied customer with our exceptional industrial ventilators.
With our centrifugal ventilators, we recently assisted a customer with a highly respected name in the production of dust filters. This company had over 70 years of experience in the agro, wood and recycling industry and offered innovative quality solutions for industrial dust extraction. The key factors? Unparalleled sustainability, high efficiency and low operating costs. With our integrated centrifugal ventilators, version 5, we could certainly deliver!
In close cooperation with the customer, Slingerland searched for high-efficiency centrifugal ventilators that could also be installed quickly and efficiently. This saved time during the construction of their filter systems, namely when the horizontal centrifugal ventilators were mounted in the clean side of the filter. Easy to assemble, easy to maintain and high quality!
The horizontal centrifugal ventilators we selected were equipped with B5 motors, which could be easily mounted on the ventilator housing with a flange. In addition, we equipped this version 5 centrifugal ventilator with a frame on the underside so that it could be easily mounted via the top of the filter.
The customer then provided its own cone, which connects the inlet of the integrated centrifugal ventilators directly to the filter section below the clean air side. There, the horizontal centrifugal ventilators could draw in the air through the filter sleeves, thus filtering the air from the process. In addition, these horizontal centrifugal ventilators were all frequency-controlled and of excellent quality.
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Today, Slingerland’s heat-resistant centrifugal ventilators represent true added value in numerous industrial sectors. Did you know, for example, that these ventilators even play a major role in the application of professional powder coatings? Find out more about our recent contract for oven ventilators for a professional powder coating line here!
How our custom centrifugal ventilators are beneficial in such a powder coating installation? As follows: A powder coating installation or powder coating line generally consists of one or more sub-processes, always starting with proper pre-treatment. In a market that is becoming increasingly demanding, a growing number of companies are coming to the conclusion that an additional process, such as KTL/ATL or galvanisation, is necessary. This is the only way to meet the high-quality requirements.
After this type of pre-treatment, it is always necessary to use a drying oven. Afterwards, an even layer of powder coating is applied in the powder room. This hardens in the curing oven into a wear-resistant, hard protective layer.
In other words, the powder coating process is a series of processes, each of which needs to be perfectly coordinated. In these various steps, it is therefore essential that the air management is correctly implemented. Slingerland’s centrifugal ventilators are efficiently deployed for this task!
The customer who recently approached us for centrifugal ventilators was an OEM company that had been manufacturing powder-coating systems for decades. To regulate their air management, the company used various types of oven ventilators, depending on the customer’s quality requirements. They offered an affordable solution of a B-brand and a high-quality solution of a German A-brand. However, there was a demand for a mid-range solution, where the quality was comparable to that of the German manufacturer but the price was closer to that of a B-brand. And of course, at Slingerland, we were able to provide just that solution!
This customer required various types of ventilators for its processes, which would provide the air management in the drying and oven processes. We therefore supplied the following ventilators to Slingerland:
Each of these centrifugal ventilators had a heat-resistant, silicone-free coating. In addition, they were equipped with a cooling fan and a special mounting profile for mounting certain oven parts.
The unique feature of these heat-resistant centrifugal ventilators was that they were custom-made, so that the oven did not have to be modified. For the customer, this meant that he could keep his existing design and still use new, alternative ventilators. A great advantage!
Are you also in search of heat resistant centrifugal or other ventilators for the air management in your company or for a specific customer? Please do not hesitate to get in touch with us: we will be pleased to discuss the possibilities with no obligation on your part!
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Our PP centrifugal fans recently proved to be the perfect solution for a major Dutch installer who had been tasked with replacing fans at a hospital. It was extremely important for these fans to be 100% airtight, as not a single particle can be allowed to escape from a sensitive environment of this nature. Read on to find out how we tackled this problem at Slingerland!
Slingerland’s plastic centrifugal fans recently proved to be the missing piece in the puzzle at LUMC, or Leiden University Medical Centre. This is because this research institute hosts several laboratories, at which valuable and special research is performed. To be able to carry out this research in the best possible conditions, a reliable and high-quality extraction system was required. And that’s exactly what we were able to offer!
One of the laboratories at the Leiden institute was due a new set of fans. In answer to their question, we supplied six RMV250 2D PP-welded plastic fans, as well as one RMV225 welded fan for external installation.
This plastic RMV250 centrifugal fan can handle an extraction rate of 400 m³/h at 600 pascal of negative pressure, plus a rate of 1500 m³/h at 1300 pascal of negative pressure at a second operating point. These industrial centrifugal fans are also fitted with 2.2 kW ABB electric motors. The shaft seals are fitted with a plastic seal with an extra chamber for negative pressure. This negative pressure is created via a bypass to the inlet of the fan.
These robust pp centrifugal fans come fully welded and are extremely solidly built as a result. The customer used this solution to replace the existing fans in the technical room at the hospital and is now set for many years to come. That’s why we do what we do!
Without exception, our plastic centrifugal fans serve as a solid solution for anyone who needs high-quality extraction in a complex environment. If you’re also on the lookout for centrifugal or axial fans for your business premises, feel free to contact us for more information or to discuss things in person, without any obligation. We’re happy to help!
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Our plastic centrifugal fans recently came in very handy for an urgent replacement of old fans in the education sector. Read all about how we helped a school in Deventer restart their thorough laboratory research with our PP centrifugal fans here.
Plastic centrifugal fans play an important role in many sectors including education. We recently experienced this in collaboration with our customer. Saxion Hogeschool in Deventer believes in preparing students for a role in a dynamic society. The educational institution for students therefore offers a wide range of courses for IT and economy. In addition, they offer a broad Life science, Design & Technology course. This makes the ability to perform biological and medical laboratory research at school essential and plastic centrifugal fans turned out to be the perfect solution.
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Optimise dust extraction at your company with high-quality centrifugal fans, such as those by Slingerland. Sometimes this is very much needed, as was the case in the situation below. Read all about how we made a different with our pressure surge-resistant fans for a large seed producer here.
We used these pressure surge-resistant centrifugal fans to compose a bespoke solution in various diameters. We will briefly clarify the 2 largest ones:
All centrifugal fans were executed with pressure surge-resistance up to 0.7 bar. The casings were fitted with strengthening ribs and adjusted plate thickness and the fan casings were fully welded. Finally, all these industrial fans were fitted with inspection hatches, condensate drainage and NBR shaft seals.
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Our stainless steel industrial centrifugal fans have recently been put to good use at a mushroom sector company with ambitions to fully commit to circular agriculture and sustainable processes. Slingerland held extensive consultations with the client in question to arrive at the perfect final solution. Continue reading to find out all about it.
Slingerland’s stainless steel centrifugal fans have recently been put to good use to contribute to circular agriculture in the mushroom supply chain. Our client, already one of the most high-tech mushroom growers in the world, had the ambition to modernise its processes even further. Their aim is to grow mushrooms in a more environmentally conscious way, and they’re doing so by finding high-quality applications for the residual flow of the growing process via mushroom compost, in addition to generating their own energy. To achieve that ambition, the company started building a biomass plant and mushroom compost drying facility, at which our industrial fans play a crucial role.
At this mushroom compost drying facility, our stainless steel centrifugal ventilators are used to work alongside a conveyor belt dryer. During this process, the mushroom compost is dried before being turned into pellets. These pellets can then be used as a sustainable substitute for artificial fertiliser, which completes the cycle in a really neat way! The energy for the drying facility is provided by a biomass plant that supplies heat and electricity generated from regional wood cuttings obtained from sustainable woodland management.
For this project, Slingerland supplied eight stainless steel centrifugal ventilators, each with a capacity of 150,000 m3/h at 1200 Pa at 60°C. These industrial fans come equipped with a 110kW six-pole WEG motor. The parts that come into contact with the airflow are made of grade 304 stainless steel, and the motor bracket, which is made of normal steel, has a special coating. The fans are manufactured to ATEX standard with EX inlet cones suitable for use in Zone 22.
The Class III stainless steel impeller is fitted with backwards-curved blades, including counter blades on the rear side to create negative pressure at the shaft passage and to reduce dust build-up at the shaft seal. In addition, these stainless steel centrifugal fans are fitted with a copper-ring shaft seal suitable for ATEX situations and resistant against high temperatures. The fans are also equipped with aluminium cooling fans for extra motor cooling.
Finally, two inspection hatches are fitted to the fan casing to allow for regular inspection and cleaning. An IFM EX speed sensor has also been fitted to provide extra protection against overspeed. The fan casing is manufactured in three sections for easier transport and is simple to maintain. An FAT test was performed upon delivery, including a running test at maximum RPM. We delivered the fans with balancing reports, material certificates, coating certificates and a sensor function test.
Our grade 304 stainless steel centrifugal ventilators offered the perfect solution to this unique situation. They’ve also found another fantastic application in fibre drying (see this similar project), and they were the perfect fit for this animal feed drying installation. If you’ve got a project or company at which our industrial fans can lend a helping hand, we’d be happy to sit down run through the options during a no-obligation appointment!
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An industrial fan made from 304 stainless steel is the ideal solution if you’re struggling with poor extraction, especially in humid environments with higher temperatures. We have all kinds of fans on our range at Slingerland. Read here how we helped a Dutch company optimise its production process with industrial stainless steel fans.
304 stainless steel centrifugal fans are mainly used in the pharmaceutical and chemical industries and, as is the case here, the food industry. For example, one of our customers – an industrial processes service provision company from Eindhoven – recently received a request from a client. This innovative, leading European pet food company produces branded products for pets and private-label products for retailers. They wanted a solution for their steam tunnel extraction in the production process. Our customer came to us with this request, and together we looked for a suitable solution, which turned out to be our industrial stainless steel fan.
What problem does this industrial stainless steel fan need to resolve, exactly? To prepare the pet food – specifically for dogs in this case – ground offal is cooked in steam tunnels. Highly contaminated steam vapours (approx. 90°C), which also contain fats, are released during this process, and therefore cannot be easily extracted. Our customer initially enquired about plastic fans, but we recommended they should opt for industrial stainless steel fans because of the higher temperatures and the humidity levels in the room.
Once the decision had been made for industrial stainless steel fans, our customer installed extraction hoods above the pet food company’s steam tunnels. The vapours then had to be extracted before they could be removed by the hoods. We provided two different types of fans for this – supplying 3x BPR 352C with a 0.25kW WEG motor and 3x BPR 632C with a 1.50kW WEG motor. As you can see, Slingerland is all about versatility!
Our centrifugal fans are manufactured entirely from 304 stainless steel and include:
We’re also supplying:
These industrial centrifugal fans are usually installed in a fairly dirty environment, so we provide an additional coating on the motors. In our warehouse, we also fit an isolating switch on the fans, including connection for the motors with an EMC cable and fittings. Delivered ready to plug in!
Do you also struggle with inadequate extraction of troublesome vapours in your company? Then don’t hesitate to contact us for expert advice with no obligation. As well as industrial stainless steel centrifugal fans, we also have numerous other fans and will be happy to go through your options with you. Speak soon!
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Need to find the best fan for extraction in a blasting and conservation hall? You’re in the right place with Slingerland! Read here how we helped a manufacturer of blasting and spraying booths with the ideal medium-pressure centrifugal fans, so their customer could carry out their work with ideal air management.
We make a difference every day at Slingerland, with top-quality industrial fans. In this case study, a leading company in the Netherlands, which specialises in spraying XL products in mega coating halls, was looking for an all-in solution for blasting and spraying products. Products of this size are usually blasted and sprayed in separate halls, which of course means a lot of time is taken up with transportation.
The company in question made an enquiry to our client – a manufacturer of blasting and spraying booths, powder coating installations and pre-processing lines – who built a fantastic installation, exactly in accordance with their customer’s requirements. They used Slingerland’s efficient medium-pressure fans, designed specifically for industry, so that the entire air management system functions exactly as required.
This company’s challenge was to choose the right industrial fans, not just with the desired flow rate and pressure, but which were also explosion-proof. They also needed to be suitable for outdoor use.
The solution? Type TR 1121 directly-driven centrifugal fans. These high-pressure centrifugal fans have an extra external coating, which makes them 100% weatherproof. We’ve also added an extra layer to the centrifugal fans’ WEG motors, so they’re the ideal fans for extraction in a blasting hall!
These medium-pressure fans can each extract air at 32,000 m3/h, with a static pressure capacity of 4110 pascals at 15°C. With a power consumption of 47.6kW, we were therefore able to select a fan with 83.8% efficiency and a very low noise level. We ticked all the boxes one by one, resulting in a happy customer!
Are you also experiencing problems with the air management in your company, and you’d like to meet us with no obligation to see what we can do for your business process? At Slingerland, we’re happy to invite you for a personal consultation, in which we run through which centrifugal or other industrial fans would be suitable for your project. Contact us here for an appointment. Speak soon!
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