Solutions · Semolina Storage
Semolina sits between grain and flour: coarser than flour, finer than kernels – and every grind behaves differently. PW Silo Systems designs aluminum and stainless steel semolina silos with mass-flow discharge, discharge aids, and blending for your specific grind.
Semolina Storage at a Glance
A semolina silo stores coarse-ground products such as durum wheat semolina, rice semolina, or corn grits close to production – for pasta, couscous, desserts, baby food, or polenta. It protects the semolina from moisture and contamination and feeds it in a controlled way to mixers, presses, or packaging.
Particle size and fines content decide how semolina flows. PW Silo Systems designs silo geometry, wall material, and discharge equipment around your grind and your process.
Why Semolina Is Demanding
Semolina quality depends on a consistent particle size. Every challenge below affects your pasta, couscous, or end product.
Semolina contains coarse and fine particles. A uniform product at the outlet matters for pasta and couscous quality.
Semolina absorbs moisture from the air and can cake, especially with a high share of fines.
In coated carbon steel silos, flaking paint and steel particles can end up in the semolina.
Fine semolina dust is combustible. Filling and conveying release dust into the silo and its surroundings.
Deliveries differ, and a silo filled in batches forms horizontal layers of different quality.
Food plants often handle several semolinas side by side – including allergen-relevant or specialty products.
Silo Materials
Aluminum and stainless steel silos are widely used for flour, sugar, starch, and other food ingredients. Both materials offer high corrosion resistance, good hygiene, and a long service life.
Carbon steel is not an option for us: its coating is the only protection against corrosion. Once it wears, paint particles and steel can get into the product. Which of our two materials fits your semolina silo depends on your product, your process, your cleaning requirements, and your site – we review it with you.
Your Semolina Silo System
Silo, discharge, blending, filtration, and safety equipment are engineered as one system. That means fewer interfaces for your team and components that are designed to work together.
Storage
Concentric mass-flow discharge without asymmetric flow zones – as standard, site-assembled, indoor, or multi-compartment silos.
Learn moreBlending
Gravity blending and homogenizing with four technologies, including PW ConeBlend with a hopper that is quick to clean.
Learn moreDischarge
Air fluidization for uniform discharge of poorly flowing products – prevents bridging and can be retrofitted to existing silos.
Learn moreDischarge
Vibration from unbalanced motors breaks up cohesive forces, resolves caking, and keeps the outlet clear.
Learn moreFiltration
Dust separation during filling and conveying, in a hygienic design for the food industry.
Learn moreSafety & Monitoring
Rupture discs or explosion vents for combustible dust, level measurement for reliable monitoring of the silo content.
Learn moreSemolina Types
Grain, grind, and fines content change how semolina flows. All products below are on our list of bulk materials tested in our lab.
Tested in our lab
Wheat semolina, durum semolina, cream of wheat
Durum wheat semolina is the raw material for pasta and couscous. Mass-flow discharge supports a uniform product at the press.
Tested in our lab
Rice semolina, ground rice, rice grits
Rice semolina is used in desserts, baby food, and gluten-free recipes. A dedicated silo keeps it apart from wheat products.
Tested in our lab
Spelt semolina
Spelt semolina is a specialty product for pasta and baked goods. Storage and discharge are designed for its grind.
Tested in our lab
Corn grits, polenta, hominy grits
Corn grits range from fine polenta to coarse grits for snacks and brewing. Silo and discharge are matched to your grind.
Tested in our lab
Millet semolina, millet grits
Millet semolina is a gluten-free grind for porridge and baby food. Separate storage avoids mixing with wheat semolina.
Tested in our lab
Semolina, grits
General semolina and grits for food production. We design the silo around your particle size and process.
Also tested in our lab:
These products are not on our tested list yet. Send us your material data and we will review the right solution with you:
Semolina Check
Type in your semolina or any other bulk material to see whether it has already been tested in our lab. The list covers 287 bulk materials.
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Service in the U.S.
With more than 40 years of experience in silo engineering, we support your semolina silo project from the first design discussion to commissioning. We deliver to every U.S. state and install with our own qualified personnel.
FAQ
Answers to the questions plant managers, engineers, and buyers ask most often about storing semolina in silos.
These products are on our list of bulk materials tested in our lab:
Couscous, barley grits, oat grits, and buckwheat grits are not on our tested list yet. We review them with you based on your material data.
Both. Aluminum and stainless steel silos are widely used for semolina and other food ingredients because they offer high corrosion resistance, good hygiene, and a long service life. Which material fits your project depends on your product, your process, your cleaning requirements, and your site. We review the options with you.
In a carbon steel silo, the coating is the only protection against corrosion. If it wears or flakes off, paint particles and steel can end up in your semolina. That is why we build silos exclusively in aluminum and stainless steel.
In funnel flow, coarse and fine particles can leave the silo unevenly. Our PW StoreLine silos use concentric mass-flow discharge without asymmetric flow zones, so the entire silo content moves evenly toward the outlet.
In mass flow, the entire silo content moves downward when material is discharged – not just a channel in the center. Your semolina leaves the silo in the order it came in (first in, first out), and no product is left behind in dead zones where it could age or cake. Our PW StoreLine silos are designed for concentric mass-flow discharge without asymmetric flow zones.
Fine semolina dust is combustible, and many bulk solids carry an explosion risk. For combustible bulk solids we supply explosion-protected silos designed in accordance with applicable codes and regulations. Venting devices – rupture discs or explosion vents – are selected for your silo, your product, and your application. Integrated filters and dust collectors reduce dust during filling and conveying.
Deliveries vary, and a silo filled in batches forms horizontal layers of different quality. PW BlendLine gravity blending silos homogenize the content so your production receives a consistent product. We offer four blending technologies; the right one depends on your semolina and on whether you operate continuously or in batches.
Hygiene starts with the materials: aluminum and stainless steel offer good hygiene and corrosion resistance. In addition, our flat-roof designs support high cleanliness standards, PW SpeedBlow uses high air flow for cleaning, and the PW ConeBlend blending silo has a hopper that is quick and easy to clean – well suited to frequent product changes.
The right size depends on your daily consumption, delivery intervals, the number of products, and the space available at your site. PW StoreLine silos are available in a wide range of sizes and diameters, and silos too large for road transport are assembled on site. We size the system with you – without oversized investment.
Yes. We deliver to every U.S. state and support your project with silo transport, field assembly, silo installation and supervision, and site relocation of existing systems.
Very likely. Our silo systems are designed for nearly all free-flowing, granular, and powdered bulk solids. Send us your material details, and we will review the right storage and discharge solution with you.
Tell us about your products, required storage capacity, how the silo is filled and discharged, and your site conditions. Based on this, we work out the material, silo type, and configuration with you and send you a detailed quote.
Your Project
Whether you need a single semolina silo, several silos for different products, or a complete system with blending and discharge, tell us about your requirements. We'll develop a solution that fits your product, your process, and your site.
Send a Request NowWhat Happens Next
Tell us about your bulk material, your process, and your site conditions.
We work with you on material, silo type, and configuration – based on a bulk material analysis if needed.
You receive a custom-engineered solution with a detailed quote.
