Manufacturer of ion exchange systems, water softeners and filter technology for industrial water treatment
Leyco Wassertechnik GmbH
Föritztal (Hönbach), GermanyNew on Amplifa
Water treatment from Sonneberg – since 1992
Leyco Wassertechnik GmbH is a medium-sized manufacturer of industrial water treatment systems based in Föritztal (Sonneberg district, Thuringia). Founded in 1992, the company develops and produces regenerable ion exchange cartridges, pressure vessels, water softeners, filter technology, accessories and conductivity meters for industry, commerce, medicine and engineering. In-house, the systems are configured, filled and tested; exhausted ion exchangers are reprocessed in the company's own regeneration plant using cascade regeneration – including third-party products such as commercially available exchanger types, drum goods and tanks. The cartridges are made of stainless steel (1.4571, 1.4404) or plastics such as PP, PU, POM and PC. Customers come from laboratories, medical technology, the optical industry, the automotive industry, the energy sector (including hydrogen production), building services, gastronomy, wholesale and OEM. With over 2,000 products, around 6,000 customers and 25+ employees, Leyco supplies customers throughout Germany, with cartridge replacement within 24 hours.
- Site
- Föritztal
- Processes
- Regeneration of ion exchangers (mixed bed resin), Full demineralization with mixed bed resin (demineralization/deionization), Partial demineralization for carbonate hardness (H⁺ exchange), Water softening (Na⁺ resins, DVGW/UBA certified), Ultrapure water treatment for laboratory, pharma and microelectronics, Manufacture/configuration of ion exchange cartridges (resin + pressure vessel, ready to install), Filter technology (filtration), Conductivity measurement (electrical conductivity of liquids)
- Materials
- Stainless steel 1.4571, Stainless steel 1.4404, Polypropylene (PP), Polyurethane (PU), POM, PC (polycarbonate), Mixed bed resin (ion exchange resin), Polycarbonate (PC)
- Certificates
- ISO 9001, ISO 14001, Certified specialist operation under the WHG (German Water Resources Act), DVGW/UBA-certified water softeners, TÜV, DVGW/UBA certification (water softeners)
- Founded
- 1992
- Employees
- 25+
- Industries
- Laboratories, Medical practices & medical technology, Optical industry, Automotive industry, Energy companies (hydrogen production), Plumbers / building services
- 01
Application analysis and technical consulting
- 02
Configuration of resin and pressure vessel
- 03
In-house manufacture/filling of the ion exchange cartridges
- 04
Quality inspection with batch and test report
- 05
Shipping or 24h cartridge exchange
- 06
Cascade regeneration of exhausted resins (also third-party products)
- 07
Return shipping and reuse
Materials & Processes
Stainless steel 1.4571
Material for pressure vessels, distribution systems and electrodes of ion exchange cartridges and measuring cells.
Stainless steel 1.4404
Electrode material in conductivity meters.
Polypropylene (PP)
Food-safe plastic for the PV-PP vessel series and measuring cell bodies.
Polyurethane (PU)
Impact-resistant cladding (HLA-PU) for stainless steel inner vessels at mechanically stressed locations.
POM
Housing and measuring cell material of compact conductivity meters.
Polycarbonate (PC)
Splash-proof housing material (IP 65) for conductivity meters.
Mixed bed resin (ion exchange resin)
Cation exchangers (H⁺) and anion exchangers (OH⁻) for full and partial demineralization, softening and ultrapure water.
Sites
Föritztal (Hönbach)
DEHeadquarters: production, administration, regeneration plant, warehouse
- Materials
- Stainless steel 1.4571/1.4404, PP, PU, POM, PC, ion exchange resins
- Regeneration plant for ion exchangers (cascade regeneration)
- Photovoltaic system (248,004.10 kWh feed-in 2026)
Products & Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Regeneration of ion exchangers (mixed bed resin)Surface | – | – | – | – | Mixed bed resin, Cation exchange resin (H⁺), Anion exchange resin (OH⁻) |
| Full demineralization with mixed bed resin (demineralization/deionization)Surface | – | – | – | – | Strongly acidic cation exchange resin (H⁺), Strongly basic anion exchange resin (OH⁻) |
| Partial demineralization for carbonate hardness (H⁺ exchange)Surface | – | – | – | – | Ion exchange resin |
| Water softening (Na⁺ resins, DVGW/UBA certified)Surface | – | – | – | – | Na⁺ ion exchange resin |
| Ultrapure water treatment for laboratory, pharma and microelectronicsSurface | – | – | – | – | High-performance resins (specially regenerated) |
| Manufacture/configuration of ion exchange cartridges (resin + pressure vessel, ready to install)Assembly | – | – | – | – | 1.4571 stainless steel, PP, PU, Ion exchange resin |
| Filter technology (filtration)Surface | – | – | – | – | – |
| Conductivity measurement (electrical conductivity of liquids)Testing | – | – | – | – | 1.4571 stainless steel, 1.4404 stainless steel, PP, POM, PC |
| Cascade regenerationSurface | – | – | – | – | – |
| Regeneration of third-party products (commercially available exchanger types, third-party drumSurface | – | – | – | – | – |
2 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Regeneration plant for ion exchangers (cascade regeneration) | – | – | – | – | Föritztal (Hönbach), Germany |
| Photovoltaic system | – | – | 248,004.10 kWh feed-in (2026) | – | Föritztal |
Additional services
Quality & Certification
Every ion exchanger is tested before shipping; batch and test reports are available. The company is certified to ISO 9001 and ISO 14001 and is a certified specialist operation under the German Water Resources Act (WHG); water softeners are DVGW/UBA certified.
| Evidence | Föritztal (Hönbach) |
|---|---|
| ISO 9001 | |
| ISO 14001 | |
| Certified specialist operation under the WHG (German Water Resources Act) | |
| DVGW/UBA certification (water softeners) | |
| TÜV |
Company History
- 1992
Foundation of Leyco Wassertechnik GmbH in the Sonneberg district of Unterlind.
- 2002
Relocation to the new Hönbach industrial estate; the building combines production and administration.
- 2008
Extension of the building to include today's warehouse.
- 2014
Leyco becomes part of FORUM Family Office; planning of a new site with a modern regeneration plant.
- 2026
Photovoltaic system at the Föritztal site feeds 248,004.10 kWh into the grid (approx. 171,120 kg CO₂ reduction).