SRF Dryer Manufacturer in Spain
See how we dry SRFLooking for SRF dryers manufacturers in Spain? STRONGA builds FlowDrya lines to order at its Hertfordshire works and supplies them to Spain — see the regulatory and economic context below.
FlowDrya SRF dryers are built to order at STRONGA's Hertfordshire works and supplied to producers here, with no commissioned line on local soil yet. Solid recovered fuel is the graded, specified cousin of RDF, classified under EN ISO 21640 on net calorific value, chlorine and mercury so it can be traded and burned consistently in cement and lime kilns. That grading only holds if the moisture is low and repeatable: a damp, variable feedstock cannot be classified, whereas conditioning it below 15 per cent moisture lifts the net calorific value above 20 MJ/kg and lets the fuel be sold against a documented class. Ley 7/2022, which taxes burial and caps municipal landfilling, is steering exactly this combustible fraction toward recovery.
Supplying Spain
We supply Spain from our Hertfordshire works — we have no documented SRF installation in Spain yet.
Regulatory context
Ley 7/2022, de 8 de abril, de residuos y suelos contaminados para una economía circular is the backbone of Spanish waste law. It transposes EU Directive 2018/851, entrenches the waste hierarchy — prevention, preparation for re-use, recycling, other recovery including energy, and disposal last — and sets binding targets: at least 55 per cent of municipal waste prepared for re-use and recycled by 2025, rising to 65 per cent by 2035, with no more than 10 per cent of municipal waste sent to landfill by 2035. Drying a wet residue into a fuel or a soil product is a recovery route ranked above burial, and it helps operators meet those diversion goals.
Source: https://www.boe.es/buscar/act.php?id=BOE-A-2022-5809 · checked 2026-08
Since 1 January 2023 Spain applies a state tax on the deposit of waste in landfill and on its incineration and co-incineration (impuesto sobre el depósito de residuos en vertederos, la incineración y la coincineración de residuos), created by Ley 7/2022 and ceded to the autonomous communities, which may raise the rates. The state rate for non-hazardous municipal waste sent to landfill is 40 euros per tonne; municipal waste incinerated is taxed at 20 euros per tonne for disposal or 15 euros per tonne for energy recovery; waste co-incinerated in cement kilns and similar plants is taxed at 0 euros per tonne. The structure deliberately rewards diverting a prepared fuel to co-processing over burial.
Source: https://www.juntadeandalucia.es/organismos/economiahaciendayfondoseuropeos/areas/tributos-juego/tributos/paginas/imp-residuos.html · checked 2026-08
Compost and other organic amendments sold to farmers in Spain must comply with Real Decreto 506/2013 sobre productos fertilizantes, which fixes the permitted raw materials, the pathogen limits and the heavy-metal classes A, B and C, and requires registration in the Registro de Productos Fertilizantes before a product can be placed on the market. A dried, stabilised material holds those quality limits far more readily than a wet, actively degrading feedstock.
Source: https://www.boe.es/buscar/act.php?id=BOE-A-2013-7540 · checked 2026-08
Applicable standards: EN ISO 21640, EN ISO 17225-4, EN ISO 18134, Real Decreto 506/2013 fertiliser-product classes.
Economic context
The waste tax makes disposal the expensive option and co-processing the cheap one. Burying a tonne of non-hazardous municipal waste carries a state charge of 40 euros, while a tonne co-incinerated as fuel in a cement kiln is charged 0 euros — before an autonomous community adds its own surcharge. Every tonne of wet residue turned into a dried, kiln-ready fuel therefore side-steps a growing burial cost while creating a saleable product.
Source: https://www.juntadeandalucia.es/organismos/economiahaciendayfondoseuropeos/areas/tributos-juego/tributos/paginas/imp-residuos.html · checked 2026-08
Spanish cement kilns are a large and growing outlet for waste-derived fuel. Oficemen data reported by the sector show it substituted 40.9 per cent of its fossil fuel with alternative fuels in 2023, recovering about 1.08 million tonnes of waste as fuel and avoiding roughly 1.2 million tonnes of CO2 — yet Spain still trails the leading northern-European producers, leaving substantial room for more co-processing. A dried, specification-consistent fuel with a low, even moisture is exactly what those kilns will accept.
Source: https://www.cicconstruccion.com/texto-diario/mostrar/5700687/sector-cementero-espanol-recupero-23-millones-toneladas-residuos-como-materias-primas-2023 · checked 2026-08
Conversion cost matters. Eurostat data put the price of electricity for medium-sized Spanish industrial consumers at about 0.12 euros per kilowatt-hour, so boiling water off with resistance heating is uneconomic; a dryer that runs on recovered process, exhaust or kiln heat and very little electrical power is what keeps drying viable.
Source: https://tradingeconomics.com/spain/electricity-prices-non-household-medium-size-consumers-eurostat-data.html · checked 2026-08
Heavy industry also pays for carbon under the EU Emissions Trading System, where allowances traded around 80 euros per tonne of CO2 in late 2025 (83.79 euros on 15 December 2025). Every tonne of coal or petroleum coke a dried waste- or biomass-derived fuel displaces in a kiln avoids a real and rising per-tonne carbon cost on top of the fuel saving.
Source: https://carboncredits.com/eu-carbon-prices-hit-2025-highs-as-2040-climate-target-tightens-the-market/ · checked 2026-08
Worked illustration (assumptions stated):
The economics rest on a documented grade. A tonne of non-hazardous municipal waste buried is taxed at 40 euros, a tonne co-incinerated at 0 euros, so a producer who dries and grades the fuel avoids the burial charge and gains a saleable product. Cement kilns substituted 40.9 per cent of their fossil fuel with alternative fuels in 2023 and want the tightest, most consistent fuels first – a graded SRF earns a firmer offtake than a crude shred. Displacing coal also avoids an EU allowance near 80 euros per tonne of CO2. Because industrial power runs near 0.12 euros per kWh, the honest way to reach a low moisture is recovered kiln or exhaust heat, never resistance heating. Assumptions: chlorine limits, class targets and heat source govern the payback.
Figures are indicative and were last reviewed August 2026; energy and disposal prices move — contact us for a current assessment.
SRF Dryer Manufacturer in Spain — FAQ
Do you supply SRF dryers here?
Yes, from our Hertfordshire factory. We hold no commissioned SRF line on local soil yet and will not imply one; the platform is the same continuous-flow FlowDrya proven on our British reference sites.
What is the difference between SRF and RDF?
SRF is a graded, specified fuel classified under EN ISO 21640 on calorific value, chlorine and mercury; RDF is a cruder, more heterogeneous shred. FlowDrya dries both, but SRF's tighter specification makes a low, repeatable moisture essential.
What moisture and calorific value does SRF need?
Buyers want a low, consistent moisture – typically below 15 per cent – so net calorific value can hold above 20 MJ/kg. FlowDrya is configured to the moisture the fuel class demands.
How does the waste tax help the SRF business case?
Landfilling non-hazardous municipal waste is taxed at 40 euros per tonne while co-incineration is taxed at 0 euros, so drying and grading the combustible fraction avoids the burial charge and creates a product a kiln will buy.
Does the FlowDrya handle variable SRF feedstock?
Yes. The deep-bed moving floor mixes and conveys a non-homogeneous feed evenly, drying it to the steady moisture a graded fuel requires.
How is an SRF plant shipped and commissioned from the UK?
Each dryer is fully assembled and factory-tested at our works, then dismantled for freight. On arrival it is reassembled, connected to the site's heat supply and brought online through a structured start-up, shutdown and supervised trial before handover.