f r e i g h t

H i g H b r a k i n g p e r f o r m a n c e

H i g H S a f e t y L e v e L

p r o v e n W H e e L D e S i g n

Valdunes Mountain SafetyVMSTM

OVer 200’000 wheelS i n s e r v i c e i n t h e w o r l d w w w . V A l D U N e S . C O M

VMS™ IS AN eXClUSIVe MG-VAlDUNeS’ PrODUCT

wheel especially designed

and developed for operations

under high thermal stresses.

low stress level in the rim

and reduction of rim deflection.

Decreased maintenance downtime through increased

wheel life and quality impovements.

100 % conformity with

new european standards:

eN 13979-1, eN 13262

and wAG TSI.

f r e i g h t

VMSTM

Valdunes Mountain Safety

VMS 630 mm ≤ o ≤ 1000 mm

o u r b u s i n e s s s p i r i tinnovAtion & perForMAnce

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mg-vaLDUneS - rue Gustave Delory - 59125 - Trith Saint léger - France - Tel: +33 (0)3 27 23 62 62 - e-mail: info@VAlDUNeS.com - www.valdunes.com

BACkGrOUND

Due to high tensile residual stresses on the tradi-

tional Ore freight wheel rim, failures appeared,

especially after drag braking on mountain lines.

The VMSTM concept was developed to solve

the problem and thus increase safety levels.

SOlUTIONS

New low stress geometry designed using

CAD & FeA. (From 630 to 1’000 mm diameter).

TSI approved and railway technical qualification.

Efficiency checked on bench and field testing.

Safety improvement: toughness level under

control.

reSUlTS

30% greater resistance against catastrophic

brittle fracture.

50% reduction of the lateral rim displacement.

Absorbed braking power up to 50 kw for 45 min.

Noise reduction with the use of a composite

brake shoes.

BeNeFITS

Improved safety.

Increased wheel life.

reduced downtime.

reduced life cycle cost.

Improved and controlled braking performance.

Noise reduction available.

OUr MAIN reFereNCeS:

SNCF (France), SNCB (Belgium), DB (Germany),

SBB (Switzerland), Ferronor (Chile), ONCF (Mo-

rocco), Transnet (South Africa), DSB (Denmark),

renfe (Spain), ÖBB (Austria), Comilog (Gabon)…

Main private fleet owners.