• Products

    Product categories

    Products

    FILOIL 1500

    FILOIL 1500

    Transformer oil treatment plant

    The compact FILOIL configuration. 1 500 l/h, mineral oil and esters, stationary or mobile, on or off-line transformers.

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    FILOIL 3000

    FILOIL 3000

    Transformer oil treatment plant

    The mid-compact FILOIL. 3 000 l/h, mineral oil and esters, stationary or mobile, on or off-line transformers.

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    FILOIL 6000

    FILOIL 6000

    Transformer oil treatment plant

    The standard FILOIL. 6 000 l/h, mineral oil and esters, stationary or mobile, on or off-line transformers.

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    FILOIL 9000

    FILOIL 9000

    Transformer oil treatment plant

    The high-throughput FILOIL. 9 000 l/h, mineral oil and esters, stationary or mobile, on or off-line transformers.

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    FILOIL 12000

    FILOIL 12000

    Transformer oil treatment plant

    The large-asset FILOIL. 12 000 l/h, mineral oil and esters, stationary or mobile, on or off-line transformers.

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    FILOIL 24000

    FILOIL 24000

    Transformer oil treatment plant

    The flagship FILOIL. 24 000 l/h, mineral oil and esters, stationary or mobile, on or off-line transformers. Configurable in parallel for 48 000 l/h installations.

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    FILOIL 3000 est

    FILOIL 3000 est

    Ester oil treatment plant

    The compact FILOIL for esters. 3 000 l/h, natural and synthetic esters, < 10 ppm water, > 95 kV breakdown. Mobile-friendly design for on-site service of ester-filled transformers.

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    FILOIL 6000 est

    FILOIL 6000 est

    Ester oil treatment plant

    The mid-range FILOIL for esters. 6 000 l/h, natural and synthetic esters, < 10 ppm water, > 95 kV breakdown. Bridges portability and throughput for utility and service-fleet operation.

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    FILOIL 9000 est

    FILOIL 9000 est

    Ester oil treatment plant

    The high-throughput FILOIL for esters. 9 000 l/h, natural and synthetic esters, < 10 ppm water, > 95 kV breakdown. For transformer factories, large service operations, and industrial-scale ester oil handling.

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    REOIL S

    REOIL S

    Transformer oil regeneration plant

    The compact mobile REOIL. For distribution transformers (1-5 MVA) up to 5 000 kg oil capacity. 1 000 l/h, up to 6 adsorption columns, full FILOIL process integration. Built for urban substations, renewable sites, and remote installations.

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    REOIL M

    REOIL M

    Transformer oil regeneration plant

    The mid-range REOIL. For medium and large power transformers (5-100 MVA) up to 30 000 kg oil capacity. 6 000 l/h, up to 10 columns (5×2), optional dual bank, full FILOIL process integration. Continuous online operation on energized transformers.

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    REOIL L

    REOIL L

    Transformer oil regeneration plant

    The high-capacity REOIL. For large power transformers (40+ MVA) up to 100 000 kg oil capacity. 9 000 l/h, up to 24 columns (12×2), dual-bank architecture for uninterrupted regeneration. For transmission system operators and large transformer fleets.

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    REOIL Module

    REOIL Module

    Transformer oil regeneration module

    Mobile adsorption-based regeneration unit, paired with a separate FILOIL plant for full oil restoration. 9 000 l/h, up to 24 columns, automatic in-line sorbent reactivation. For service teams running regeneration campaigns with existing FILOIL equipment on-site.

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    ECOIL 2000

    ECOIL 2000

    Transformer oil purification plant

    The compact ECOIL. 2 000 l/h, mineral oil and esters, fixed configuration, available from stock.

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    ECOIL 5000

    ECOIL 5000

    Transformer oil purification plant

    The mid-range ECOIL. 5 000 l/h, mineral oil and esters, fixed configuration, available from stock.

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    ECOIL 8000

    ECOIL 8000

    Transformer oil purification plant

    The full-capacity ECOIL. 8 000 l/h, mineral oil and esters, fixed configuration, available from stock.

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    VACOIL S

    VACOIL S

    Transformer vacuum equipment

    The compact VACOIL. 200 m³/h primary, 750 m³/h secondary. Lightweight and mobile, for field service and tight spaces.

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    VACOIL M

    VACOIL M

    Transformer vacuum equipment

    The mid-size VACOIL. 300 m³/h primary, 2 000 m³/h secondary. Stationary or mobile, the everyday workhorse.

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    VACOIL L

    VACOIL L

    Transformer vacuum equipment

    The high-capacity VACOIL. 660 m³/h primary, 5 600 m³/h secondary. For transformer factories, large drying ovens, and high-throughput field operations.

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    CABOIL

    CABOIL

    Bespoke dielectric oil treatment

    Custom-built for dielectric oils in non-energy applications — X-ray machines, vacuum pumps, pulse generators, cooling systems. Engineered around the customer's oil and process.

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    SORBOIL

    SORBOIL

    Bespoke sorbent purification

    Industrial-scale sorbent-based purification using activated bauxite. For acidity reduction, sulfur removal, and sorbent reactivation in oil production and recycling.

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    MIXOIL

    MIXOIL

    Bespoke additive blending and dosing

    Precision mixing, dosing, and conditioning of oils with additives, inhibitors, and performance-enhancing agents. Standalone or production-line integration.

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    STOROIL

    STOROIL

    Bespoke intelligent oil storage

    Storage with integrated filtration, real-time quality sensors, heating, and vacuum for de-aeration. Custom-sized to oil type and operational requirements.

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  • Services

    Service categories

    Services

    Transformer oil regeneration Corrosive sulfur removal Transformer oil treatment Transformer oil filling
    Oil treatment plant rental Oil regeneration plant rental
    Spare parts & consumables Technical support

    Full oil restoration to like-new condition

    Restores degraded transformer oil to IEC 60422 specification. Acidity, tan delta, interfacial tension, breakdown voltage, and water content are returned to fresh-oil values. Performed on-site, on live transformers, using Ekofluid REOIL equipment.

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    DBDS and elemental sulfur removal

    Removes corrosive sulfur compounds per IEC 62697 and IEC 62535, including DBDS and elemental S8 sulfur. The oil is simultaneously fully regenerated. Performed on-site, on live transformers.

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    On-site, IEC 60422

    Lowers water content, dissolved gas, and particle contamination to IEC 60422 specification. Performed on-site using FILOIL equipment, with no transformer downtime required.

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    Vacuum filling for new and serviced transformers

    Fills evacuated transformers with treated oil to specification. Vacuum-controlled to prevent moisture and air ingress. Performed on-site for new commissioning or post-service refills.

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    FILOIL on rental terms

    FILOIL transformer oil treatment plants available for short-term campaigns or extended deployments. Equipment delivered, commissioned, and optionally operated by Ekofluid technicians — or handed over to the customer's trained team.

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    REOIL on rental terms

    REOIL transformer oil regeneration plants available for short-term campaigns or extended deployments. Includes sorbent and reactivation capability. Delivered, commissioned, and operated by Ekofluid technicians or handed over to the customer's team.

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    OEM parts for installed equipment

    Genuine OEM spare parts and consumables for Ekofluid FILOIL, REOIL, ECOIL, VACOIL, and Bespoke equipment. Filter elements, sorbent media, vacuum pump components, seals, and consumables. Detailed catalogue available on request.

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    Remote and on-site support for installed equipment

    Remote diagnostics, on-site service visits, operator training, and parts logistics for the global installed base. Multi-language support from the Vienna and Levice teams.

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Ekofluid designs and manufactures industrial oil and fluid processing systems. Headquartered in Vienna, manufacturing in Levice.

Products

  • FILOIL
  • FILOIL est.
  • ECOIL
  • VACOIL
  • REOIL
  • Bespoke

Services

  • Transformer oil regeneration
  • Corrosive sulfur removal
  • Transformer oil treatment
  • Transformer oil filling
  • Equipment rentals
  • Spare parts & support

Company

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Contact

Ekofluid GmbH

Mariahilfer Strasse 36
1070 Vienna

office@ekofluid.com

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