When composing various powder or granule mixtures or adding micro-ingredients, the right quantities of each substance must be added. Dinnissen has developed various dosing systems for the precise and safe dosing of solids. Read all about our Dosing Slides, Dosing Screws, Dosing Diverters and Feeding Hoppers below, or view the page on our Feeder Valve and Micro Dosing System.
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It’s important to add each substance at the right time in the right amount, so you can guarantee the quality of each batch. A Dinnissen dosing system ensures extremely accurate dosing, for both large and small quantities of the substance to be added. Which dosing solution fits best depends among other things, on the product to be dosed and the capacity required. We gladly advise you on all possibilities.
Adding micro-ingredients such as fats, enzymes, vitamins, and minerals must be done with precision. Adding too much means wastage and adding too few micro-ingredients means lost effectiveness. At Dinnissen we know every substance is different. To accurately dose a substance, not only secure weighing is important, but also the method of dosing. That’s why Dinnissen has developed various dosing systems, each with specific properties and qualities. With a Dosing Slide or Dosing Screw, you effortlessly let through the right amount of substance and with a Dosing Divider, you separate just the right amount of product from the rest.
The key features of all Dinnissen dosing systems are reliability and accuracy. The way a substance is dosed differs per solution. For example, a sticky substance is not processed in the same way as dry powder. And a micro-ingredient requires different processing than bulk goods. All our dosing systems are designed, developed, and tested in-house. So you are always assured of the best possible quality.
A Dosing Slide dispenses product using sliding valves. The amount of product passed through, is determined by the frequency with which the slides open and the with of the resulting openings. The Dosing Slide can be set up so that exactly a predetermined amount of product passes through within a certain time frame.
A Dosing Screw is - just like the Dosing Slide - extremely suitable for bulk goods. Because of the continuous supply of product, the dosing screw fits well in a continuous process. The dosing screw also works well when adding powders in a vacuum coating process. The screw often has a valve at the end, that opens and closes within a set time. This way products such as powders can be dosed very precisely.
With our Dosing Distributor you don't move your product from A to B, but from A to B and C. The system can dispense dry bulk goods such as powders, pellets and granulates in two separate directions. This can take place simultaneously, as well as in one direction by (temporarily) closing an output with a slide. You can also close both directions, stopping the entire product flow. The amount of product going in a certain direction can be determined very precisely by not opening the slide completely and thereby narrowing the passage.
The Feeding Hopper is the silo in which the product is (temporarily) stored before it is dosed out. Thanks to years of experience and analysis equipment, Dinnissen specialists can determine exactly how well a product flows out of the Feeding Hopper. We design an installation based on product behavior. Based on experience and testing, we develop the right hopper, reducers, and other components needed to dose your product as best as possible.
The operation of a dosing system differs for each solution. The Dosing Slide and the Dosing Diverter work with valves that can open and close and thus determine how much product is passed through. The Dosing Screw delivers a certain amount of product per rotation, but at the same time, it can also be equipped with a valve at the end of the screw. The dosing is determined by weight loss (loss-in-weight) or weight gain (gain-in-weight).
In a loss-in-weight system, you measure a raw material that flows out of a weigh hopper per time unit through a dosing system. Beforehand, a weighing module measures the decrease of this raw material from the weigh hopper per time unit and, in combination with a special weighing and dosing control system, calculates the set point. In this way, the weighing and dosing control determines the final dosing capacity (the amount of raw material that flows out of the weighing hopper per time unit) and also ensures that the weighing hopper is refilled in time. This allows the production process to continue uninterrupted, making the system extremely suitable for continuous processes, for example in ovens, extruders, and continuous mixers.
When weighing a batch, the desired weight is set in advance. In a gain-in-weight system, a split is often made between rough dosing and fine dosing. Whereas in the first phase of the dosing process rough dosing takes place, in the last phase the dosing takes place slowly and in small quantities. Dinnissen developed a self-learning control system to optimally regulate this dosing process and to adjust it automatically where necessary. In short, the dosing process can be adjusted to current product conditions to regulate the correct dosing speed and increase dosing accuracy.
Download our brochure or the datasheet with all options, models and dimensions, or freely contact one of our experts.
Product feeding and weighing are often combined within one solution. In addition to solutions for solid products such as powders, grains and granulates, Dinnissen also offers liquid dosing systems. The amount of product to be passed through can be determined based on the gain-in-weight or loss-in-weight principle, using weighing cells under (temporary) storage.
System integrator Dinnissen optimizes and innovates your production process with tailored solutions: developed, manufactured and tested in-house. From product intake, transport, dosing and weighing, mixing, grinding, sieving and packaging to full automation and control. We maximize the performance and efficiency of your entire process.
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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.
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
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
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
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
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