Develops and manufactures hydraulic shock absorbers and hydro-pneumatic suspension systems for automotive, rail transport, offroad and defense
KONI B.V. (Teil von ITT Motion Technologies)
Oud-Beijerland (NL) · Hebron, Kentucky (US) · Railway Service Centers: Czech Republic · China · North America (US)New on Amplifa
About KONI
KONI B.V. is a shock absorber and suspension system manufacturer specializing in chassis technology, headquartered in Oud-Beijerland, Netherlands. Founded in 1857 and part of the US industrial group ITT (NYSE: ITT) since 1972, the company developed the first adjustable hydraulic shock absorber and the patented FSD technology (Frequency Selective Damping), a purely mechanical, frequency-selective valve mechanism without electronics; over 70 million FSD valves have been delivered to OEMs. The product portfolio includes dampers for passenger cars, motorhomes, offroad vehicles (including EXPLORER in 2-inch aluminium monotube design), commercial vehicles, motorsport, rail vehicles (Type 05 up to 15 kN, Type 06 up to 25 kN, each with a service life of ≥1.5 million km) as well as hydro-pneumatic HYDRORIDE suspension systems for defense vehicles up to 75 tonnes with nitrogen spring and rhms vehicle level control. Production takes place in Oud-Beijerland and Hebron, Kentucky (USA); three IRIS-certified Railway Service Centers in the Czech Republic, China and North America offer damper refurbishment (ReUse, RePair, ReFurbish, ReCycle) with a maximum lead time of four weeks. Every production damper undergoes a 100% performance test of the force-velocity characteristic before delivery.
- Site
- Oud-Beijerland
- Processes
- Manufacture of shock absorbers (vibration dampers), FSD valve technology (Frequency Selective Damping, mechanical valve technology), HYDRORIDE hydro-pneumatic suspension systems (nitrogen spring, RHMS, anti-roll control), First Article Inspection of dampers (dimensions and force-velocity characteristic), 100% performance test of every production damper before delivery, EXPLORER offroad damper (2-inch aluminium monotube design with FSD), OEM manufacturing of dampers and valves (over 70 million valves delivered), Railway service and damper refurbishment (ReUse, RePair, ReFurbish, ReCycle)
- Materials
- Aluminium, Nitrogen, Steel, FSD valve technology (Frequency Selective Damping), HYDRORIDE hydro-pneumatic suspension
- Certificates
- ISO 9001, ISO 14001, OHSAS 18001, IATF 16949, IRIS (International Railways Industry Standard), IRIS
- Founded
- 1857
- Industries
- Automotive (passenger cars, motorsport), Offroad/Overlanding, Recreational Vehicles / Motorhomes, Commercial Vehicles / Heavy Duty, Rail Transport (Rolling Stock), Defense (tracked and wheeled vehicles up to 75 t)
- 01
Engineering & damper characteristic tuning (incl. FSD tuning)
- 02
Valve and component manufacturing
- 03
Damper assembly (monotube/tube design)
- 04
First Article Inspection
- 05
100% performance test of every production damper
- 06
Railway service & refurbishment (ReUse, RePair, ReFurbish, ReCycle)
Materials & Processes
Aluminium
Material used for the monotube cylinders of offroad dampers (e.g. EXPLORER 2-inch aluminium monotube) and HYDRORIDE systems.
Steel
Material component in damper manufacturing according to production process information.
Nitrogen
High-pressure gas spring medium of the hydro-pneumatic HYDRORIDE suspension with progressive spring rate.
FSD valve technology (Frequency Selective Damping)
Patented, purely mechanical frequency valve with a parallel oil flow path that automatically distinguishes between low and high excitation frequencies.
HYDRORIDE hydro-pneumatic suspension
Integrated system combining damping, load support and level control with nitrogen spring, anti-roll control and RHMS.
Locations
Oud-Beijerland
NLHeadquarters and production (incl. HYDRORIDE, railway dampers, OEM)
- Materials
- Aluminium, steel, hydraulic oil, nitrogen
- Test machines for force-velocity characteristics (networked with central system)
Hebron, Kentucky
USProduction (KONI North America, HYDRORIDE, Defense)
- Materials
- Aluminium, steel, hydraulic oil, nitrogen
- Test machines for force-velocity characteristics (networked with central system)
Railway Service Center Czech Republic
CZIRIS-certified Railway Service Center for damper refurbishment
Railway Service Center China
CNIRIS-certified Railway Service Center for damper refurbishment
Railway Service Center North America
USIRIS-certified Railway Service Center for damper refurbishment
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacture of shock absorbers (vibration dampers)Assembly | – | – | – | – | Aluminium, Steel, Hydraulic oil, Nitrogen |
| FSD valve technology (Frequency Selective Damping, mechanical valve technology)Engineering | – | – | – | – | – |
| HYDRORIDE hydro-pneumatic suspension systems (nitrogen spring, RHMS, anti-roll control)Engineering | – | – | – | – | Nitrogen |
| First Article Inspection of dampers (dimensions and force-velocity characteristic)Testing | – | – | – | – | – |
| 100% performance test of every production damper before deliveryTesting | – | – | – | – | – |
| Assembly | – | – | – | – | – |
| Assembly | – | – | – | – | – |
| Assembly | – | – | – | – | – |
| EXPLORER offroad damper (2-inch aluminium monotube design with FSD)Assembly | – | – | – | – | Aluminium |
| OEM manufacturing of dampers and valves (over 70 million valves delivered)Assembly | – | – | – | – | – |
1 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Damper test machine (force-velocity characteristic, networked with central system) | – | – | – | – | – |
Additional services
Reference customers
Quality & Certifications
Every new damper type undergoes a first article inspection (dimensions and force-velocity characteristic); every production damper is subjected to a 100% performance test before delivery. The test machines are networked with a central system containing all test data and tolerance bands; all test diagrams are recorded and available on request.
| Evidence | Oud-Beijerland |
|---|---|
| ISO 9001 | |
| ISO 14001 | |
| OHSAS 18001 | |
| IATF 16949 | |
| IRIS |
History
- 1857
Founded as a small local business; over 150 years of engineering tradition.
- 1900er
Invention of the world's first adjustable hydraulic shock absorber, revolutionizing the industry.
- 1972
KONI became part of ITT (NYSE: ITT), a globally diversified industrial company.
- 1980er
Development of the patented FSD technology (Frequency Selective Damping); over 70 million valves delivered.
- 2025
Railsponsible Supplier Award at the Railway Forum in Berlin (KONI, part of ITT Motion Technologies).