Shredder
Shredders are particularly suitable for reducing soft and tough products. Available in various types of material, Dinnissen shredders are fitted with one or two rotors with hardened, wear-resistant, and easily replaceable blades.
Shredder
Available on request
Process:
Milling & Grinding
Dinnissen shredders were developed for the safe and quick shredding of various products in both the food and feed industry and in other industries such as the recycling industry. The shredders contain one or two rotating rotors with blades attached. The distance between the blades and the housing is adjustable and determines the product fineness.
- Uniform product reduction
- Adjustable cutting speed
- Easily changeable knives
Uniform and efficient product downsizing
To achieve exactly the desired grind fineness, the clearance between the directly driven rotor and the housing is accurately adjustable. Thanks to the modular configuration and the frequency-controlled variable rotor speed, Dinnissen shredders ensure accurate and uniform product reduction over and over again. The shredders can be used for such purposes as the reduction of leafy herbs, chili peppers, gelatin, and cellulose sheets, as well as plastic and rubber reduction.
In addition to the space between the directly driven rotor and the housing, the clearance between the blades is also very important for the desired product fineness. This is usually below 0.3 mm. Because the blades are mounted diagonally, the shredded product does not accumulate behind the knives and the product can be shredded continuously and efficiently.
- Variable rotor speeds
- Divergently mounted cutting plates
- Suitable for many different products and industries
- Safe and reliable
- In-house production, quality control, and testing
Key features, options, and models
Our shredders are available in various types of material. The blades mounted on the rotors are hardened and wear-resistant, but also easily replaceable. Additional stator blades are present in the grinding chamber. The blades move through the product at a high speed, causing product reduction. Over time, the blades become less sharp, as a result of cutting. For this reason, all Dinnissen shredders contain a simple and fast blade change system.
The effectiveness of reducing a given product depends on the product properties, the geometry of the blades and the cutting speed. The cutting speed can be diversified because the speed of the rotors is adjustable. The built-in air circulation system ensures low energy consumption at low capacities. If desired, the shredder can be designed to be completely gas-tight. This makes the shredder excellently integrable in closed-loop process lines, which must be completely inert.
How does a shredder work?
A shredder works because of shear forces. The material is divided into pieces when the maximum shear stress in a material is exceeded. This happens because the sharp blades in the shredder exceed the maximum shear stress in the material. The shredder works based on the blades moving through the product at high speeds.
The product is in a grinding chamber and usually, two rotating rotors in opposite directions are present, to which the blades are attached. In this process, product reduction occurs through the rotation of the blades attached to the rotors.
There is also another way in which a shredder can operate. In fact, in other types of shredders, the product passes through a stationary ring of sharp blades in a rotating grinding chamber. The blades cut off some of the product particles passing by at a high speed. With this principle, the blades do not move and cut through the material, but the material itself moves against the blades.
More information about our shredders?
Download our brochure or the datasheet with all options, models, and measurements, or freely contact one of our experts.
MORE SOLUTIONS FOR MILLING & GRINDING
From hammer mills and shredders to grinders and breakers. In addition to shredders, we can achieve your desired grain or product size with various grinding and crushing solutions, together.
Solutions for your entire process
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.
We are proud that these companies rely on Dinnissen
What customers say about us
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
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.
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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