Dinnissen specializes in the design, implementation, testing, and installation of a wide range of innovative sifting solutions. The product offering includes centrifugal sifters, rotary drum sifters, and vibrating sifters. These sifting solutions are specifically designed for the efficient and reliable sifting of powders, granules, and pellets. A sifting solution can be used to separate products based on various fineness levels or to remove foreign substances that do not belong in the process from the product being processed. The best-suited sifting solution depends on the characteristics of the product to be sifted, the desired capacity, and the final particle size to be achieved.
On this page, you can read more about:
- Sifting your product
- Our sifting and screening solutions
- Applications of sifting and screening
- Ensuring quality
- The process as part of the total solution
Sifting your product
When your product has varying particle sizes, it may be beneficial to filter based on the size of each particle. The best solution for this depends on the product. A product can be sifted using centrifugal force, where the product is pressed against the drum wall by the rotating motion, allowing smaller particles to pass through the drum wall. Alternatively, slower rotation can be used, where particles small enough fall through the openings in the rotating drum. Finally, sifting can also be done using vibration, which moves the product and allows smaller particles to fall through the sieve.
Dinnissen's sifting solutions can be used for both smaller quantities and processing tons of products per hour. Depending on the product's fragility, the desired mesh size in a sieve deck or drum, and the required level of fineness, Dinnissen will advise on the most suitable solution. A sifting solution can also be used as a quality control step to separate foreign substances from the product. Sometimes, a simple sieve deck is sufficient, but in other cases, a magnet or metal detector can be added to ensure that even smaller metal particles are prevented from entering the rest of the production process.
Our sifting and screening solutions
Centrifugal Sifter
The Centrifugal Sifter works, as the name suggests, using centrifugal force. The product to be sifted sits in a static sieve basket and is agitated by a rotating shaft with blades. The centrifugal force presses the product against the sieve basket, allowing only particles small enough to pass through the drum wall. This solution is ideal for processing fine, non-porous products such as sugar and flour, and can handle anything from a few kilos to up to 60 tons of product per hour.
Rotary Drum Sifter
For slightly coarser and more breakable products, Dinnissen's Rotary Drum Sifter provides the solution. Since the sifting drum rotates more slowly, the risk of product damage is minimized. A lower speed doesn't necessarily mean a lower processing rate; this machine can handle large quantities of product and is designed for maximum efficiency. The product is rolled towards increasingly finer perforations in the slanted drum, utilizing gravity and rotation, resulting in optimal separation and throughput capacity.
Vibrating Sifter
The Vibrating Sifter can be used as a control sieve or to separate the product into different particle sizes. By vibrating the sieve deck horizontally, smaller particles are sifted through the perforations while larger particles remain. A key advantage of the vibrating sifter is the ability to stack multiple sieve decks, allowing precise selection of various particle sizes.
Curious which solution best fits your production process? Dinnissen is happy to work with you and provide tailor-made systems based on your specific product and process needs.
Applications of feeding and weighing
FOOD
In the food industry, sifting solutions are used for products such as flour, sugar, milk powder, spices, and (coarsely ground) coffee. A sieve can be used to sort the product based on particle size, filter clumped product from the product flow, or serve as an additional check to ensure food safety. In the food sector, where hygiene is crucial, the Wingdoor Sifter is often chosen. This version of the centrifugal sifter comes with extra-large inspection hatches for quick and safe inspection and maintenance work.
fEED & PETFOOD
In the feed and pet food industries, Dinnissen's sifting installations are commonly used to separate pellets or coarser products from products reduced to powder, or to check for foreign substances that do not belong in the product stream. Thanks to their robust design and high processing capacity, Dinnissen's low-maintenance machines ensure efficient throughput in your production process.
Ensuring quality
Dinnissen stands for reliability. The world’s leading producers place their trust in Dinnissen’s solutions. Our ISO 9001 certification demonstrates that our processes meet international standards for systematically delivering products and services that comply with relevant laws and regulations. Additionally, the entire organization is ISO 14001, 27001, and 45001 certified, showcasing that our environmental management system, cybersecurity, and labor conditions meet internationally accepted standards.
Upon request, we provide solutions that meet the EHEDG guidelines. Hygienically designed machines prevent contamination in the products being produced or processed, allowing food producers to use our solutions with confidence. The machines are built with stainless steel that is treated in such a way that nearly no product residue remains. The easy accessibility for cleaning also ensures long-term quality assurance of the machines. Many of Dinnissen’s machines are available in ATEX versions, making them safe to use even in environments with explosion risks.
Process as part of the total solution
Looking for more than just a single machine? As a system integrator, Dinnissen delivers complete production lines from A to Z. Taking a holistic approach, we evaluate the entire production facility and optimize layout, setup, and system architecture. The goal: maximum output, efficiency, and minimal downtime in the smallest possible space. Dinnissen integrates all machines and systems for every step of the process into one complete production line, in a highly automated system wherever possible. From specification to service. From product intake to packaging. And from machines and systems to full control and automation. To ensure a well-functioning and robust production line, Dinnissen keeps as much as possible—from engineering to production and from control to commissioning—in-house.
Do you have a question about your process?
- Over 75 years of experience in your industry as a system integrator
- Everything in-house: engineering, production, testing, installation, control, and service
- Always a tailor-made solution for your entire process
We are proud that these companies rely on Dinnissen
What customers say about us
Process specialists unafraid to push boundaries
Dinnissen possesses expertise distinct from our in-house capabilities. They are process specialists unafraid to push boundaries and set limits.
Raymond Nolet- Founder - MiFood
World player in process technology
To realize production processes of the best quality, we work closely with Dinnissen: One of the strongest players in the world in process technology and hygienic design.
Gerben Koopmans- Project Engineering Manager - Nestlé
Quadrupled production capacity
In collaboration with Dinnissen, we have quadrupled our production capacity from 3 to 12 tons per hour.
Harald Schmalwieser- Managing Director - Solan
Technicians, not salespeople
Dinnissen's representatives strive for the best solutions. They are engineers first and salespeople second.
Frans van Zutven- Founder and Director - Van Zutven
Collaboration based on mutual respect
Our collaboration with Dinnissen is based on mutual respect and trust. We challenge each other to continuously innovate and improve
Stefan Kuijpers- Director - Vitelia
Mixing time of 60 seconds per batch
Previously, we had standard times in the mixing process of 14 - 15 minutes. With the Pegasus® mixer we achieve a mixing time of 60 seconds per batch.
Lothar Pixa- Director - Planta
Filled three complete factories
Dinnissen has filled an entire factory for us with a complete production line, on three different occasions. They just get it right: from mixers and sifters to sampling and automation.
Erik Schut- Managing Director - Jonker & Schut
Drastically improved feed-quality
90% of our customers with laying hens have already switched to the new feed produced using the Pegasus® mixer and the Thermidor® system.
Kurt Egli- Former manager - Egli Mühlen
Didn't consider any other option than Dinnissen
When the mixers needed replacement and Dinnissen could do a one-on-one replacement, we really didn't consider any other option than Dinnissen.
Elmar Flach- Technical Specialist - Voergroep Zuid
High-quality vacuum coaters
We chose to work with Dinnissen because they supply high-quality vacuum coaters that fit exactly within our production lines.
Arnold Balledux- Global Technical Head Animal Feeds & Vice-president Animal Feed & Protein - Olam Agri
Service on weekends
One day there was an important issue and one of Dinnissen's engineers immediately took action during the weekend. I have never seen other foreign partners do this.
Mr. Kimio Aono- Founder - APTe Japan
Customized mixers
Dinnissen thought along with us from start to finish. For example, they used existing drawings for these new mixers to save us costs in the engineering phase.
Pieter Gorter- Project Manager - ForFarmers
Tailor-made solution for every problem
What charmed us most about Dinnissen was that they responded perfectly to our questions each time: they jumped right in and quickly came up with a tailor-made solution to each problem.
Jos Falvay- Project manager - Perstorp
The importance of hygiene and safety requirements
Dinnissen fully understood the importance of hygiene and safety requirements in our industry. They went the extra mile by providing us with all the necessary documentation, all ATEX drawings, and full traceability.
Anton Vleeshouwers- Project Director - DSM
Unique in preliminary work
What really makes Dinnissen unique, is the preliminary work. You can literally count every bolt and nut in the drawing.
Kenneth Gijzen- Maintenance & Engineering Manager - AAK Rotterdam
Supplied entire installation
Dinnissen is the first company we've worked with that delivers a total package. Because Dinnissen supplied the entire installation, including platforms and safety installations, the entire line is CE-certified.
Michel Kliphuis- Manager - Steinweg Amsterdam
Easily and safely changing sieve basket
The ease and safety with which the sieve basket can be changed were decisive factors in our choice for a Dinnissen sifting machine.
Mr. Kreuzer- Company Manager - Südstärke
Six-fold increase of total production
Production has gone from 3-5 tons per day to 30 tons per day. That's a six-fold increase in total production.
Michiel de Boer- CEO - Nöll & Co.
Fully automated sampling
We considered several machine developers, but the high quality of the Dinnissen machines and the competence and commitment of the employees were decisive for us.
Arjan van Dijk- Project Manager - Ausnutria
Mixers have been running 30 years
Dinnissen machines may not be the cheapest in terms of purchase price, but in terms of value for money, there are none better. Our Dinnissen mixer has been running extremely reliably for 30 years.
Adwin van der Vorst- Directeur - VDV Group
Flexibility, cleaning, short mixing time, and a homogeneous end product
We also considered other options but on the points we considered most important - flexibility, cleaning, short mixing time, and a homogeneous end product - Dinnissen scored best.
Sam Dimassi- Owner - Nutri-Dynamics
Choice based on trust, feeling, and price
We made a choice based on trust, feeling, and price. In this total package, Dinnissen came out best.
Marcel van den Oetelaar- Proces Technologist - Vobra
No challenge is too big
At Dinnissen, they think in terms of challenges, not problems. They don't give up and keep going until there is a solution that satisfies all parties.
Martin Sonneveld- Production Director - United Petfood Waalwijk
Increased capacity despite using 17 fewer mixers
The amazing part is that we managed to increase the capacity, despite using 17 fewer mixers.
Edward Depre- Project Manager - Group Depre