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On many networks, passenger train operators have transitional couplers to allow the towing of immobilized vehicles. These transition couplings must be handled by a minimum of 3 agents and meet many technical requirements to ensure the function of traction members safely.

In Asia, an LAF customer uses emergency transitions requiring 3 agents for handling and setting up. Given the operational constraints, this obligation to use 3 people posed a serious problem in the event of a breakdown and had a negative impact on performance.

LAF's technical teams have therefore developed a transition solution where the mass has been reduced by 33% and which makes it possible to use only 2 people while maintaining the required characteristics.

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LAF renews its participation as an exhibitor at Innotrans 2018, the most important International Exhibition of Rail Industry to be held from 18 to 21 September 2018 in Berlin. For this occasion, LAF will be pleased to welcome you in hall 3.2, stand 301 E. You will also find our parent company CIM (www.cimgroupe.com), one of the sponsors of the French Pavilion Innotrans 2018, as well as another division of our group - SEG Sogema Engineering (www.sogema-engineering.com).

It should also be noted that LAF is nominated for the International Development Award of the French Rail Awards 2018 organized by Business France and whose 2nd edition will take place on September 18, 2018 in Berlin.

For any information, get in touch with the company or make an appointment at the show, you can contact us directly via our email: cim@cimgroupe.com.

 

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Following many months of technical negotiations, LAF has been awarded a contract by a Chinese manufacturer for the supply of retractable buffers and drop-head knuckle couplers with integrated hook. to equip flat wagons that will be delivered in 2019, to the operator of one of Europe’s major urban networks.

These associated products enable the wagons to be used in two particular ways. The hook-type configuration , when the coupler head is down, is associated with the non-retracted buffers, enabling operation with UIC model hooks / screw couplers / buffers. A special feature of these products is to offer a small footprint while respecting the client's specifications.

The knuckle coupler configuration requires the buffers to be in the retracted position. By design, this coupler allows angulation of more than 25 ° which provides the operator with the possibility to use the wagons on tighter curves on the network.

The technical challenges were multiple (reduced radii of curvature, shock absorber with reduced space, self-centering, ... ..) and all them were energetically overcome by the LAF team.

LAF has once again demonstrated its ability to adapt to the constraints of its customers, in order to provide them with the best possible solution.

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On 30th January, LAF received a delegation from the end user as well as from the wagon manufacturer to test the first automatic pneumatic connection systems intended to equip breakable bars.

These tests consisted of validating cases of angulation and vertical as well as horizontal offsets in the most critical cases, utilising a test bench specifically developed for the occasion by the LAF design office.

The aim was to ensure a perfect connection, without loss of pressure.

The tests proved to be conclusive and these first systems will therefore be delivered to the customer to be installed on dedicated shuttles, following which the next tests will be undertaken in full operating conditions.

A great success for the LAF team !

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In order to simplify, speed up and secure operations, LAF has successfully developed and integrated a self-coupling pneumatic connection on a drawbar for wagons.

LAF has acquired the necessary skills in the pneumatic field to be able to offer its customers, solutions adapted to their needs.

 

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Contact us
  • Christophe SAUVAN
  • +33 (0) 1 69 11 93 26
  • c.sauvan@cimgroupe.com

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