Pioneering design and engineering expertise – creating high-performance systems for every bulk-handling requirement

The technical expertise, flexibility and ingenuity of the Portasilo design and engineering teams enable us to create bulk storage and handling systems that are tailored precisely to your needs.

It’s our design experience, problem-solving capabilities and diverse engineering specialisms that set Portasilo apart in the bulk-handling industry, giving customers in many sectors the assurance that their systems will be precision-engineered to deliver optimum performance when handling their specific materials. Our engineering specialists work closely with sales teams to ensure that system designs are carefully scoped from the outset. By providing engineering input and advice at the proposal stage, any technical issues can be addressed early on, allowing an accurate initial proposal to be developed for every project.

Advanced 3D design capabilities

Our design teams use sophisticated 3D design software to create detailed system and product designs on screen before any manufacturing work begins. The software enables designs to be manipulated and configured to create intricate models that can be scrutinised, reviewed and agreed between the customer and Portasilo ahead of the manufacturing phase. Take a look at our pioneering configurator tool, which is helping to automate and streamline the silo design process. 

Portasilo design experts are split into three areas:

1. Process engineering

This team is responsible for engineering our handling systems, ensuring each one is purpose-designed for the demands of each material and site. The team has vast experience of designing handling systems for large complex plants.  Our engineers carry out detailed calculations for each system and devise control philosophies and guidance for each plant. They specify all components, including Portasilo and third-party equipment. The team specialises in pneumatic conveying systems, using our full-scale test rig combined with technical knowledge to design efficient lean and dense-phase systems for conveying diverse materials over long distances.

2. Structural engineering

Our structural capabilities include silos, support structures, buildings, foundations and civils. We can design silos from small-diameter factory-built vessels to vast site-built silos up to 15m in diameter. Our silo design capabilities include, design for mass or core flow using advanced shear cell lab technology, a suite of automated structural calculations combined with finite-element analysis which allows us to predict the stresses and buckling failure modes, induced from complicated flow profiles. Our advanced capabilities in this area put Portasilo at the forefront of silo design and manufacture.

As an example of structural innovation, Portasilo devised a part-bolted assembly method for the large silos installed at Drax power station. Traditionally, such large silos were welded together on site, but the bolted system enabled individual parts to be manufactured and the entire silo pre-assembled at the Portasilo factory. Once assembled, the silos could simply be dismantled, taken to site and very quickly reassembled – dramatically reducing build time on site.

3. Product engineering

Our in-house product engineering team is responsible for designing the range of market-leading Portasilo discharge and conveying products, including the advanced Rotoflo discharger, precision-metering units (PMU’s), fluid cones and the Superflo dense-phase conveying system.


For any more information about our products and services, contact us here

OR CALL +44 (0) 845 6011 276

By sector


We have experience of handling every type of biomass material, including wood pellets, dried sewage sludge, meat and bone meal, draff, chopped straw and charcoal.

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Chemical Sector


Bulk handling solutions for challenging and hazardous chemicals. Specific expertise in paint powders, sealants & adhesives, fertilisers, petrochemicals, plastics and rubbers.

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Nuclear Sector


The types of material we handle for this sector include iron oxide, magnetite, cement, pulverised fly ash, blast furnace slag and have particular expertise in encapsulation and grout handling.

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Construction Sector


For more than six decades, Portasilo has been designing and manufacturing robust, durable and versatile storage and handling systems for a wide range of building products for the construction, mining and quarrying industries.

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Food Sector


Specialists in optimising productivity and minimising waste, experience in supplying economical, ATEX-rated food handling systems. We can design systems to handle every type of foodstuff, from dusty granules to moist pelletised products.

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Water icon


Portasilo manufactures storage and handling systems for every dry bulk material used for water treatment, from hydrated lime and powder activated carbon (PAC) to polymers and soda ash.

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© Portasilo Limited 2015 Portasilo Head Office: New Lane, Huntington, York, YO32 9PR +44 (0) 845 60 11 276 Company Registration No 525808 (England & Wales)

Portasilo, Porta, Rotoflo, Rotoframe, Siloflo, Augerflo, Osciflo, Oscibar, Superflo, Ashflo and Vibrocone are trademarks.