Tailor-made drying solutions

Stronga’s 'International' FlowDrya range delivers energy-efficient, cost-effective industrial drying solutions in a modular, easily transportable configuration. Designed for reliable, long-term performance, these integrated drying systems combine efficiency and value for money.

Every FlowDrya International is engineered on a bespoke, project-by-project basis to meet your specific requirements. By considering your heat source, wet material properties, site location, required throughput and end-product specifications, Stronga develops tailored drying solutions designed to optimise performance, maximise energy efficiency and deliver long-term operational value.

With robust engineering, modular design and a focus on lifetime reliability, FlowDrya International provides a scalable approach to industrial drying, helping businesses process wet materials efficiently while achieving a strong return on investment.

Optimise. Don’t compromise.

At Stronga, we know that you want to get the most of your drying equipment; that’s why we’ve built a dryer that is gentle on the material.

FlowDrya works with temperatures that are perfectly suited to the product while ensuring that the material is carefully handled during the continuous drying process. We do not believe in artificially boosting performance at the expense of output product quality through over-temperature heating of the material. The aim of FlowDrya International is to ensure a high quality, added-value end product, whether that be dry chip for boiler fuel, dry AD fibre for animal bedding, drying SRF for use as an alternative fuel, or other.

Designed simplicity

Robust & reliable. Continuous International-edition flow dryers from Stronga have no belts, chains, sprockets and few moving parts. With simplicity comes reliability and with reliability comes extremely low service costs.

Low energy usage. FlowDrya International has an extremely low electrical energy requirement from soft-start continuous operation offering the lowest kWe cost per ton dried across a range of materials - wood chip, SRF, RDF, digestate fibre and more.

Low labour costs. The powerful combination of high capacity drying with semi-autonomous operation and modern touchscreen controls minimises expensive labour costs.

Transportable intermodal system

Road, rail & sea cargo

Compared to the fully fabricated FlowDrya Green Series, the FlowDrya International range is designed for efficient global transport, with a modular configuration suited to intermodal shipping by road, rail and sea freight. Its transport-friendly design makes it easier to relocate drying equipment between sites, regions and countries, providing greater flexibility to adapt to seasonal demands, changing material types and evolving production requirements.

Contact Stronga to discuss shipping to your site >

Super utilisation potential

While each FlowDrya International dryer is custom-designed for one specific material, the wider range of proven drying solutions can accommodate a diverse selection of wet materials, biomass feedstocks and industrial by-products. Potential applications include wood residues, agricultural by-products, alternatives fuels (SRF and RDF) and other materials, subject to project-specific assessment. Combined with low operating costs and a high duty cycle, FlowDrya offers reliable, efficient drying with the potential for year-round operation.

By tailoring each industrial drying system to the material being processed, Stronga helps businesses optimise drying performance, add value to underutilised resources and maximise the long-term return on their investment.

Easily transportable

Between farms, countries & continents

Simplicity is paramount

The flow drying process, described

Simplicity is paramount in the International-edition FlowDrya which positively moves and agitates wet materials from a separate top-feed hopper onto a lower level, full length, hydraulic-powered drying floor. Material flows at a variable, operator-controlled speed, drying materials evenly from wet input moisture content to the desired target dry output. The unique flow drying process enables materials to naturally mix, blend and agitate in the PulseWave™ action down the drying floor, over a flow of drying quality air (various fuel types and heat sources available).

Interact with the 3D model below to discover the details of FlowDrya International Series. This is just an example dryer; other configurations and arrangements are available.

Airflow zoning

Optimising outcomes

For optimum drying performance, Stronga’s design team carefully "zone" the drying floor according to airflow pressure requirements and the specific properties of the wet material. This includes engineering and manufacturing bespoke airflow baffles within the sub-floor plenum to regulate air distribution and promote consistent, efficient drying.

Key design considerations include material characteristics, heat source, available thermal energy, required throughput and overall processing scale. Stronga works closely with each client throughout the project, providing expert guidance at every critical stage to develop a tailored drying solution that delivers reliable performance and long-term value.

Integrated DryStation™ PLC

Success by controlling

FlowDrya International operations are controlled by the integrated, smart PLC which allows full control over drying operations while self-protection is managed automatically. Intelligent self-protection features include thermal protection for the oil and time-out protection. The illuminated DryStation™ touchscreen is intuitive and easy-to-use while logging of key performance parameters enables operator development and provides instant visual and set-point control of important drying parameters, including:

Strokes per hour ✔; Plenum temperature over time ✔; Material depth on the drying bed ✔; System status ✔; Manual mode operation ✔; Auto mode operation, including moisture metre sensor option (where fitted) ✔

Modern secure remote access

Live viewing in high definition

The modern remote access enabled option allows connectivity and viewing by desktop or smart device while key drying parameters can be adjusted remotely, only by authorised personnel. Since the operation of the flow dryer does not require permanent operator presence, checking the parameters of the dryer remotely can be an extremely useful tool, especially in high-duty situations.

PulseWave™ agitation motion

Delivering evenness of dry output

The PulseWave™ motion on the drying bed thoroughly mixes materials to ensure that every part of the material interacts with the conductive heat from the drying bed and receives an even convective airflow, leading to uniformity of output dryness*. Gentle PulseWave™ agitation is a unique feature of FlowDrya International; no other dryer can offer this level of integrated material agitation.

* Material type, bulk density, location and ambient conditions all affect drying performance. Please contact Stronga to discuss your requirements in detail.

Your wishes, integrated

Energy-efficient drying systems from Stronga offer robustness, unique hydraulically-driven agitation and highly effective thermal conduction and convection drying. Discover the main benefits of the ‘International Series’:

Compact design, easily transportable between sites ✔; Semi-autonomous operation ✔; Flexibility to dry hemp, wood chip, SRF, RDF & more ✔; Long life reliability of a well-proven, hydraulic moving floor drying system ✔; Scalable capacity in length & width, suited to your drying operation ✔; Compatible with various heat sources ✔; Excellent thermal & electrical efficiency ✔; Low operational & labour costs ✔

* Each International FlowDrya is tailor-made. No two projects are the same; we ask for key information about your specific project and material, including a wet material sample, location and preferred heat source. Our technical team can analyse the details before recommending the optimum design dryer.

Upgrade your drying system

Many drying systems still in operation are outdated and inefficient, consuming excessive energy and contributing to unnecessarily high CO₂ emissions. FlowDrya International offers a modern, cost-effective approach to industrial drying, combining efficient moisture evaporation with a competitive initial capital investment. Designed around your specific wet material, heat source and processing requirements, FlowDrya helps businesses optimise thermal energy utilisation, reduce avoidable operating costs and improve overall drying efficiency compared with less efficient alternatives.

Speak to Stronga today to explore a tailored, energy-efficient flow drying solution for your material and application.

Standard Specifications

High capacity top deck in-feed hopper. Loading configuration depends on material to be dried.
Full width, full length PulseWave™ drying bed (hydraulically-operated).
PLC system and DryStation™ smart control console.
Exhaust air opening. Exhaust flue arrangements generally bespoke to the project.
Fines recirculation auger. Small fines that fall through the drying floor are recirculated from the lower plenum onto the drying bed.
Andon - visual operation status display.

Optional Equipment

FI-101
Material moisture sensor (MMS)* with display. Automatic control of dry output material moisture.
*Calibrated for 1 material only
FI-102
Enclosed cross auger module with geared motor and inspection hatch*.
*Design is material dependent
Multiple sizes available, Contact Stronga for more information > Watch video >
FI-103
Inclined discharge auger with gear drive, gear box and inverter for speed control.
Multiple sizes available, Contact Stronga for more information >
FI-104
Anti-corrosion stainless steel package for digestate fibre, sewage cake and other corrosive materials.
FI-105
Remote viewing access for authorised personnel via Ethernet to desktop or mobile.

FlowDrya International is a modular, scalable, tailor-made continuous drying solution. Please enquire using the form below to discuss a suitably scaled solution for your project.