Oat Processing
Tietjen hammer mills are used worldwide for grinding oat flakes, kernels and husks. They stand out for their reliable, efficient, and cost-effective grinding performance.
The Challenges of Oat Grinding
Grinding oat flakes and husks poses a particular challenge due to
- their high fat and protein content
- and fibrous husks.
Tietjen offers complete grinding systems for the gentle, efficient and hygienic processing of oats – robust, easy to clean and optimised for every product.
Our Customers
Tell Us about Your Challenge. We´ll Find the Right Solution.
Briefly describe your requirements to us – we will listen, ask the right questions and develop a customised Tietjen solution for your application.
We Grind the Following Oat Products
- Grinding of oat flakes and oat kernels for the production of oat flour and oat milk
- Grinding oat husks for animal feed production
Why Fat Content is a Challenge
Challenge: Compared to other types of grain, oats have a significantly higher fat content. During grinding, heat generated by friction can cause the fat to be released more quickly, which leads to faster contamination of the screens and can impair process reliability. It is therefore important to process the material as gently as possible with low heat generation in order to ensure a stable and trouble-free process.
Solution: Tietjen not only supplies a hammer mill, but also the entire grinding system, including aspiration, which is optimally matched to the product and heat generation and works gently but efficiently. In the mill itself, heat generation can be reduced through the optimal design of the screen perforation, speed control and aspiration.
How to Face Sticking and Caking of Oat Meal?
Challenge: The relatively high protein content of oats influences the texture of the ground material. This can lead to sticking and caking in the mill, which makes cleaning and maintenance more difficult and can impair process stability.
Solution: Tietjen hammer mills in stainless steel design are used for grinding oat flakes. The beaters and screen configuration optimised for oat flakes reduces sticking and caking and allows the grinding result to be adapted to customer requirements. Aspiration and feeding are also adapted to oat processing. Oat products are often used directly for human consumption.
How to Face Fibre-Rich and Hard Structures of Oat Husks
Challenge: Oat husks are particularly high in fibre and contain a lot of cellulose and lignin, which makes them significantly harder and more resistant than many other cereal components. This structure leads to increased wear on the beaters and requires more robust milling technology and more frequent maintenance.
Solution: Tietjen stands for “Made in Germany” quality and manufactures particularly robust and resistant mills. At the same time, we specialise in hammer mills and can provide you with optimal advice on oat husk grinding: dosing, beater and screen configuration are adapted to the product.
How the Mill Remains Hygienic
Challenge: Oat products are often used directly for human consumption. Residues and caking in the mill and throughout the entire module are undesirable.
Solution: Tietjen’s stainless steel hammer mills are easy-to-clean and have mill designs with good accessibility, removable screens and beaters.
Further Questions
In addition to hammer mills, crushing roll mills are also used for grinding oats, especially when a coarse and fibrous structure is desired. In this case, the grains are crushed rather than broken, resulting in a different particle structure than with a hammer mill.
- Hammer mills are more flexible in oat grinding, as they can grind both oat flakes and oat kernels in the same mill. The grinding of oat husks for the animal feed industry is also a typical application for hammer mills.
- The hammer mill’s smaller footprint compared to the roller mill makes it a significantly more cost-effective investment in a mill.
- Due to its small footprint, the hammer mill can be integrated into an existing plant more easily than a roller mill.
- Compared to the roller mill, the hammer mill is a relatively easy-to-operate and easy-to-maintain grinding system, resulting in lower operating costs than the roller mill.
Tietjen is a specialist in grinding and also in the associated explosion protection. The vast majority of customers invest not only in a mill, but in a complete grinding system with integrated explosion protection. Learn more about our expertise in explosion protection.
Typical Next Steps
- Clarify requirements: We analyze your requirements and general conditions together
- Technical center trial: Trial grinding in our technical center with your material
- Project planning & quotation: Development of an individual plant concept and quotation
- Implementation: Delivery, installation, and commissioning by our experts
- After sales: Long-term support, spare parts, and maintenance with guaranteed availability
Tell Us about Your Challenge. We´ll Find the Right Solution.
Briefly describe your requirements to us – we will listen, ask the right questions and develop a customised Tietjen solution for your application.