Location	Kirchmöser, Bahntechnikerring 74
Use	Roller rig for investigating wheel/rail contact
Focus	Wheel/rail wear Out-of-round wheels Wheel tread damage due to rolling contact fatigue Influence of wheel material Influence of wheel profile Validation and parametrisation of wheel/rail simulation models Testing Wheel materials Wheel profiles New developments for non-destructive testing or diagnostic systems Friction modifiers Acoustic measurements Rolling noise Curve squeal Influence of wheel noise absorbers
Wheelset	Non-driven and powered wheelsets Wheel diameter: 400 to 1,250 mm Material and profile: variable
Rail roller	Underfloor arrangement Diameter 2.1 m Rail material: R260 Rail profile/inclination: 60E2 / 1:40
Parameters	Axle load: up to 340 kN (34 t) Lateral force: up to 30 kN Speed: up to 300 km/h Curves: from 300 m radius up to ∞ Lubrication or moistening/irrigation possible
Equipment	Concentricity measurement Cross-section measurement Axle box accelerometers NDT for crack detection

Location	Kirchmöser, Bahntechnikerring 74
Use	Linear test rig for investigating wheel/rail contact
Focus	Wheel/rail wear Cross-section wear Rolling contact fatigue (head checks) Influence of rail material Influence of wheel/rail profile Weld joints Common crossings / frogs Validation and parametrisation of wheel/rail simulation models Qualification of rails as per DBS 918 254 Testing Rail materials Rail profiles New developments for non-destructive testing or diagnostic systems Friction modifiers
Wheel	Wheel diameter: 800 - 920 mm Material and profile: variable
Parameters	1,000 load cycles/h 20,000 gross tonnes/h with 20 t axle load Axle load: up to 40 t Lateral force: up to 20 kN Curves: from 300 m radius up to ∞ Lubrication or moistening/irrigation possible
Equipment	3D geometry measurement NDT for crack detection

Location	Kirchmöser, Bahntechnikerring 74
Use	Linear test rig for investigating wheel/rail contact when applying longitudinal forces
Focus	Wheel/rail wear Cross-section wear Rolling contact fatigue (head checks, squats) Influence of wheel/rail material, material pairing Influence of wheel/rail profile, profile pairing Weld joints Validation and parametrisation of wheel/rail wear simulation models Testing New rail materials Wheel and rail profiles, profile pairing New developments for non-destructive testing or diagnostic systems Friction modifiers
Wheel	Wheel diameter: from 640 – 1,250 mm Material and profile: variable
Rail	Length: 1.2 to 1.4 m Material and profile: variable
Parameters	5,000 load cycles/h 100,000 gross tonnes/h at 20 t axle load Axle load: up to 40 t Longitudinal force: up to 34 kN Lateral force: up to 60 kN Curves: from 120 m radius up to ∞ Lubrication or moistening possible
Equipment	Thermography 3D geometry measurement NDT for crack detection

Location	Kirchmöser, Bahntechnikerring 74
Use	Roller rig for wheel and wheelset constructions
Focus	Rolling contact tests under real loads New wheel constructions, also rubber-sprung New wheelset constructions Variable-gauge wheelsets Crack propagation tests on axles Testing new developments for non-destructive testing or diagnostic systems
Wheel seat	Non-driven and powered wheelsets Wheel diameter: 600 to 1,200 mm Profile: cylindrical Material: variable
Rail roller	Underfloor arrangement Diameter 2.1 m Rail profile: cylindrical
Parameters	Axle load: up to 340 kN Lateral force: up to 80 kN Speed: up to 160 km/h Programmable load spectrums
Equipment	Telemetry for strain gauge measurements Thermography for rubber-sprung wheel constructions

Wheel/rail contact