Our client provides customised solutions for production lines in the potato, fruit and vegetable sector. They integrate and streamline machines in every step of the production process. In this industry, hygiene and quality are very important. High demands are also placed on finishing.
Developing a new machine is not easy and needs to be tailor-made for a process. Our client had a request to develop a machine to automatically remove the crown from strawberries. The strawberries were placed on a belt and had to be sucked with their crown into a small hole. Several strawberries on a belt until it was full and then a knife would automatically run under it and top the strawberries. It was not easy to determine the suction here. But thanks to our engineering department, we were able to go on site and measure what would be needed in terms of suction power. This enabled us to select a suitable fan for our customer.
In the end, we designed very high-quality stainless steel centrifugal fans with a pull-out system to remove the impellers for easy cleaning. As we use robust impellers, the hinges naturally had to be sufficiently heavy duty. We therefore provided two mounting brackets on the swing-out system and the motor plate was equipped with three quick-release fasteners. We also provided a condensation drain with G½” internal thread. This stainless steel fan was equipped with a 5.5kW 2-pole WEG motor. The fan was manufactured entirely from stainless steel 304, after which it was shot-blasted to give all welds a perfect finish. The fan was fully TIG-welded, which is also very important in the food industry.
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.
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A customer of our client wanted to install a new spray booth to be able to finish their products with the latest technology again. Here, of course, it is important to use a suitable ventilation system, such as double-inlet fans. To develop a good ventilation system, several factors need to be considered. One of these factors is the size of the spray booth and the volume that needs to circulate through it. The ventilation system must be able to effectively remove the air pollutants produced, such as paint mists and toxic gases, while ensuring air quality. Because of the toxic gases, the solution also had to comply with Atex guidelines. This is why we chose double-inlet centrifugal fans. Read more about this under the heading “solution”.
Our client is a company that specialises in providing energy-efficient solutions for commercial and industrial facilities. Their offerings include energy-efficient HVAC systems, lighting systems, building automation systems and renewable energy solutions. Their goal is to help companies reduce their energy consumption and costs, improve indoor air quality and promote sustainability. By offering a wide range of energy-efficient solutions and services, they help their customers create more comfortable and efficient buildings while reducing their impact on the environment.
As a solution, we offered the customer three different double-inlet fans. Namely the VTZ 500, 560 and 710. They comply with T1A ATEX3GZ2. These double-inlet centrifugal fans are specially designed for use in explosive environments and comply with the ATEX guidelines for zone 2 (II 3 G c). The fan housing is welded and coated with 40h RAL5015 for extra protection.
The fans feature a corner frame with block bearings and a discharge flange for easy installation. An inspection hatch is also provided for easy maintenance, as well as a condensation drain to prevent moisture from sticking in the fan housing.
The maximum fan speed is 1820 rpm, 1700 rpm and 1230 rpm, respectively, and the maximum available power is 12, 17 and 22kW. The discharge position is RD/LG90 and grilles are present on both the suction and discharge sides.
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.
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One of our customers, Herding filtertechniek, a specialist company of dedusting systems for various industries, received a request from a producer in the salt industry.
In a salt tablet manufacturing process, there was a need for a dedusting system in which our customer could provide a solution by means of a Herding sinter-plate filter and Slingerland Techniek’s centrifugal fan.
Due to the high salt load in the process and the environment, a centrifugal fan and motor with a high-quality coating system were chosen that are suitable for this salt load. The casing was also adapted to this environment by being made of stainless steel 316 panels and aluminium profiles with a suitable coating system.
Volume: 5000m3/h | Static pressure: 4500Pa
Manufactured from S355J2 steel
High-efficiency impeller with backward-curved blades
Fan casing fully welded
Equipped with special Doublezinc coating system
Fan housing fitted with inspection hatch
Fan housing with condensation drain
Stainless steel fixing materials
WEG E-motor 11kW-2p-IE3
Motor fitted with special coating system
Fan installed vibration-free in casing by means of flexible connection sleeves and vibration dampers
Dimensions: LxWxH = 1200x1200x1400mm
Stainless steel 316 panels
Stainless steel 316 inspection door with lock and handles
Aluminium profiles with 3-layer powder coating system
Connection suction and discharge side ut RVS316, with collar connection
Akotherm acoustic insulation
Interior suction box with acoustic insulation
Suction and discharge grilles made of 316 stainless 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.
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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.
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In many industries, heat is needed for the production process. For this purpose, industrial ovens are often built. Think of furnaces to bake glass sheets, furnaces to bake bricks. Even the picture tubes of the first TVs were made in ovens.
A fan completely customized for our customer so they do not have to modify their installation. Our customer had a fixed concept of furnaces for several years and always sells this complete concept. So his wish was to leave it as it is because it has been working well for years. So we worked with him to design a complete custom solution.
Together with the customer, we ended up designing 10 pieces of free-running plug fans for his industrial furnace. Each fan does 50,000 m³/h at 1390 pascals. The fans are equipped with 37kW, 4 pole WEG motors. The plug fans have reinforced steel impellers, profiled backward curved blades. Includes aluminum cooling impeller with protective cover. Furthermore, they have an insulated mounting plate with 100mm insulation. The fans are suitable for a maximum medium temperature of 240 degrees.
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.
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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.
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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 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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