
Development, production and distribution of tailor-made polyurethane systems as well as filling of cleaning and disinfection agents

RÜHL AG & Co. Chemische Fabrik KG
Friedrichsdorf (Head Office / PU Systems) · Friedrichsdorf/Köppern (Cleaning + Disinfection) · Taicang, China · North America near DetroitNew on Amplifa
About the RÜHL Group
RÜHL AG & Co. Chemische Fabrik KG is a family-owned mid-sized corporate group headquartered in Friedrichsdorf near Frankfurt am Main, with a tradition of more than 80 years in the production of chemical products. The subsidiary RÜHL PUROMER GmbH has been developing and producing tailor-made polyurethane systems for more than half a century and is one of the leading independent PU system houses in Central Europe. The portfolio covers flexible foam, integral foam, rigid foam, rigid integral foam, fiber composite systems (LFI, RTM, wet pressing), compact and RIM systems, coating and skin-forming systems as well as PU high-performance elastomers. The formulations are produced on demand in batch sizes from 50 to 20,000 kg; sample parts, prototypes, zero and small series are produced in the company's own machine pilot plant. The second business unit, Cleaning + Disinfection, handles the filling, capping and labeling of liquids in containers from 1 to 190 liters, also as contract production for medical devices. Customers include, among others, the automotive, rail vehicle, aircraft, construction, medical and furniture industries. Sales and service offices in Taicang (China) and North America near Detroit complement the global offering.
- Site
- Friedrichsdorf
- Processes
- PU flexible foam systems (puroflex®), PU integral foam systems (puroflex®), PU rigid foam systems (purotherm®), PU rigid integral foam systems (purodur®), PU fiber composite systems / composites (puropreg®) - spray, wet pressing and RTM processes, LFI, PU compact systems (purocast®) for casting and spray technology, PU RIM systems (purorim®) - Reaction-Injection-Moulding, PU coating systems (puroclear®) for Direct Coating / ColorForm / clearmelt / CCM/CLEARRIM / In-Mold
- Materials
- Polyurethane (PU/PUR), puroflex® flexible foam (polyether flexible foam), puroflex® integral foam, purotherm® rigid foam, purodur® rigid integral foam, puropreg® fiber composite system (PU composite), Glass fibers (rovings, mats, fabrics, multiaxial fabrics), Carbon fibers
- Certificates
- ISO 9001:2015, EN ISO 13485:2016 + AC:2018 + A11:2021, EN ISO 13485:2016, GMP-qualified filling systems
- Founded
- über 80
- Employees
- ca. 100 (RÜHL
- Industries
- Automotive, Rail vehicle construction, Aircraft construction, Construction industry, Furniture and leisure industry, Medical technology
- 01
Application engineering / technical consulting
- 02
Material development at the purovation Center
- 03
Pilot plant: prototypes, zero and pre-series (LFI, RTM, clearmelt)
- 04
Production of tailor-made PU systems (batches 50–20,000 kg, on demand)
- 05
100 % outgoing goods inspection
- 06
Direct delivery (canister, drum, container, tank truck)
Locations

Friedrichsdorf (Färberstraße 1)
DEHead office and production site PU systems (RÜHL PUROMER GmbH)
- Lot size
- Batches 50–20,000 kg · prototypes to small series in the pilot plant
- Materials
- PU systems (foam, compact, RIM, coating, elastomers)
- Low-pressure machines for casting materials and PU elastomers
- High-pressure machines for foam, compact and spray applications
- Fiber composite center for LFI and spray technology
- RTM system
- Injection molding/PU high-pressure combination machine (clearmelt/ColorForm)
- ZwickRoell universal testing machine
- Atlas Xenotest 440 UV weathering device
- Shore indentation hardness test bench
- NIR spectroscopy

Friedrichsdorf/Köppern (Quellenweg 5)
DEFilling production Cleaning + Disinfection, also contract production for medical devices
- Lot size
- Filling 1–190 L (core system 2–10 L)
- Materials
- Cleaning and disinfection agents
- Rotary filler with 10 load-cell-controlled filling stations
- Digital conveyor belt scale
- Fully automatic labeling system (one-/three-side, booklet, RFID)
- Camera inspection system for container labels
- Capping technology with adjustable torque and metrology
Taicang
CNSales and service office China (RÜHL PUROMER (CHINA) CO., LTD.)
North America (near Detroit)
USSales and service office
Products and Components










Inside the production




Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| PU flexible foam systems (puroflex®)Plastics | – | – | – | – | Polyether flexible foam (PU), PU filled with barite, PU filled with chalk, Liquid CO2-blown PU foam |
| PU integral foam systems (puroflex®)Plastics | – | – | Molded part density 220 kg/m³ – Molded part density 600 kg/m³ | – | PU integral foam, PU with bio-polyols |
| PU rigid foam systems (purotherm®)Plastics | – | – | Density 35 kg/m³ – Density 120 kg/m³ | – | PU rigid foam (water-, pentane- or physically blown), PU with recycled and bio-polyols |
| PU rigid integral foam systems (purodur®)Plastics | – | – | Molded part density 220 kg/m³ – Molded part density 900 kg/m³ | – | PU rigid integral foam, PU with bio- and recycled polyols |
| PU fiber composite systems / composites (puropreg®) - spray, wet pressing and RTM processes, LFIPlastics | – | – | Molded part density 450 kg/m³ – Molded part density 1100 kg/m³ | – | PU matrix system with glass fibers, PU matrix system with carbon fibers, PU matrix system with natural fibers (hemp, sisal and, Paper honeycomb, Plastic honeycomb, Aluminum honeycomb, purotherm® rigid foam cores |
| PU compact systems (purocast®) for casting and spray technologyPlastics | – | – | Molded part density from 1000 kg/m³ | – | Compact PU (without blowing agent), FDA- and food-approved PU |
| PU RIM systems (purorim®) - Reaction-Injection-MouldingPlastics | – | – | – | – | Microcellular PU, PU filled with short glass fibers, PU filled with wollastonite, PU filled with barite |
| PU coating systems (puroclear®) for Direct Coating / ColorForm / clearmelt / CCM/CLEARRIM / In-MoldSurface | – | – | Coating thickness 0.2 mm – Coating thickness 10 mm | – | PU coating (transparent or colored), biobased PU coating (puroclear® ECO, 25 % by weight) |
| PU skin-forming systems (puroskin®) - SkinForm® process and classic skin formingPlastics | – | – | – | – | Aromatic, water-blown 2K casting elastomer system (PU), Aliphatic PU system (UV-resistant) |
| PU high-performance elastomers (purovib®) - low- and high-pressure machines, open processing andPlastics | – | – | Molded part density 450 kg/m³ – Molded part density 1050 kg/m³ | – | PU elastomer (Shore A 50-85), Flame-retardant-modified PU (DIN 4102 B2, EN 13501-1 E) |
| Production of tailor-made polyurethane formulations (batch sizes 50 kg - 20,000 kg)Plastics | – | – | 50 kg – 20,000 kg | – | Polyurethane systems |
| Pilot plant: processing technology for the entire PU product portfolio (sample parts, prototypes,Plastics | – | – | – | – | Polyurethane systems |
| Filling of liquids (rotary filler, 10 filling stations, containers 2L-10L; additional stationsAssembly | – | – | Container size 1 l – Container size 190 l | – | Cleaning and disinfection agents |
| Capping with individually adjustable torque incl. metrology/gasket ring inspectionAssembly | – | – | – | – | – |
| Fully automatic labeling (one-/three-side labeling, booklet labels, RFIDs,Assembly | – | – | – | – | – |
| Camera inspection of containers (1D/2D codes, label position, closure caps)Inspection | – | – | – | – | – |
| Contract production on customer order for cleaning and disinfection agentsAssembly | – | – | – | – | Cleaning and disinfection agents |
| Material and component testing (tensile strength, compression set, tear propagation resistance,Inspection | – | – | – | – | Polyurethane |
15 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Rotary filler with 10 load-cell-controlled filling stations | – | 1 | Containers 2L-10L; additional filling stations for 1L-190L | – | Friedrichsdorf/Köppern (Quellenweg 5) |
| Digital conveyor belt scale | – | 1 | – | – | Friedrichsdorf/Köppern |
| Fully automatic labeling system (one-/three-side, booklet, RFID) | – | – | Containers 2–10 l and round bottles | – | Friedrichsdorf/Köppern |
| Camera inspection system for container labels | – | 1 | – | – | Friedrichsdorf/Köppern |
| Low-pressure machines for casting materials and PU elastomers | – | – | – | – | Friedrichsdorf (pilot plant purovation Center) |
| High-pressure machines for foam, compact and spray applications | – | – | – | – | Friedrichsdorf (pilot plant) |
| Processing technology for filled systems | – | – | – | – | Friedrichsdorf (pilot plant) |
| Fiber composite center for LFI and spray technology | – | – | – | – | Friedrichsdorf (pilot plant) |
| RTM system (Resin Transfer Moulding) | – | – | – | – | Friedrichsdorf (pilot plant) |
| Combination solution injection molding/PU high-pressure machine for integrated surface refinement | – | – | – | – | Friedrichsdorf (pilot plant) |
| Universal testing machine with pneumatic specimen holder | ZwickRoell | 1 | Tensile strength, compression set, tear propagation resistance, compression hardness, bending | – | Friedrichsdorf (purovation Center) |
| Shore indentation hardness test bench | – | 1 | – | – | Friedrichsdorf (purovation Center) |
| Xenon weathering device | Atlas Xenotest 440 | 1 | UV weathering | – | Friedrichsdorf (purovation Center) |
| Ball Rebound Tester (ball rebound elasticity) | – | 1 | – | – | Friedrichsdorf (purovation Center) |
| NIR spectroscopy | – | 1 | – | – | Friedrichsdorf (purovation Center) |
Additional services
Reference customers
Quality
The RÜHL Group has been ISO 9001 certified since 1997 (currently ISO 9001:2015, since August 2018); the Cleaning + Disinfection business unit is additionally certified to EN ISO 13485:2016 for medical devices, and the filling systems are GMP-qualified. A 100 % outgoing goods inspection as well as comprehensive material testing (tensile strength, Shore hardness, UV weathering, fire behavior, NIR spectroscopy) accompany production.
| Evidence | Friedrichsdorf | Friedrichsdorf/Köppern |
|---|---|---|
| ISO 9001:2015 | ||
| EN ISO 13485:2016 | ||
| GMP-qualified filling systems |
History
- ca. 1948
Sale of the first product “double carbonated soda” in a 35-gram bag for 10 pfennigs; start of the more than 80-year tradition in the production of chemical products.
- 1997
First certification of the quality management system to ISO 9001, certified continuously ever since.
- 2018
Re-certification of quality management to ISO 9001:2015 (since August 2018).
- 2019
Launch of the sustainability project “PUrer Honig” with bee colony sponsorship.
- heute
RÜHL PUROMER is one of the leading independent PU system houses in Central Europe; sales and service offices in Taicang (China) and North America.