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Light-Metal Rerailing Systems

Assorted MFD Products

   The oil-hydraulic rerailing equipment of light-metal alloy with re-pressure system

Hegenscheidt-MFD rerailing system - high safety and ease of operation.

    For more than 100 years Hegenscheidt-MFD has been a reliable partner to railway organizations.  The acknowledged high level of Hegenscheidt-MFD railway technique is based on continuous and close co-operation with the leading railway organizations in the world.  Due to its intensive dedication to the search for solutions to overcome problems occurring with railway traffic 1962 developed rerailing equipment has become the basis of current rerailing technique all over the world.

    Today Hegenscheidt-MFD rerailing equipment renders its contribution to the maintenance of railway traffic in more than 70 countries in the world.

    The double-acting re-pressure system, which has already been well proved in the field of industrial hydraulics, is also incorporated in the Hegenscheidt-MFD rerailing equipment.  Thus all operations of lifting, lowering, pushing and pulling can be completely controlled accurately to the millimeter and corrected so that the maximum level of safety is achieved.

    The individual components of the Hegenscheidt-MFD rerailing system are adapted to each other in relation to their size, lifting height, carrying capacity and power in such a way that they meet the latest trends of railway technique.   Consequently, as a result, a method has been found to connect rescue devices and air bags to the Hegenscheidt-MFD rerailing system by means of newly developed pressure intensifiers and hydraulically driven air compressors.

    The design of the system is such that according to the composition of the components all types of rail vehicle (trainways, underground and mainline railways, locomotives and power cars, steelworks cars including the heaviest torpedo ladle cars) can be raised and rerailed.  Additionally this system is particularly suitable for raising and displacing bridges and other heavy loads.

    Hegenscheidt-MFD rerailing equipment can be used on both single and multi track lines.  In the case of multi tack lines the secondary track is not blocked and, moreover, it is not necessary to remove the contact wires of electrical lines.

    Hegenscheidt-MFD rerailing system is subject to the highest safety requirements which is proved by its characteristic features such as ease of operation, simple handling, stable design and stability under load.

Re-Railing Process

Special Features:

  • double-acting hydraulic re-pressure system (300 bar)
  • fully controllable operations of lifting, lowering, pushing and pulling accurately to the millimeter
  • high stability of the jacks under load due to integral bottom flange
  • hydraulically releasable return valves to secure the load against accidental lowering in case of pressure loss(e.g. hose severance)
  • protection of the jacks against overload or misoperation by means of two integral overload valves per jack
  • jerk-free operation of the jacks even under full load
  • reduced wear due to roller-burnished and hard-anodized contact surfaces
  • computer calculated designs and use of high-strength light-metal alloy
  • extensive integrated jack programme covering all normally occurring modes of application
  • reliable and safe operation covering a wide temperature range of -40°C up to +70°C
  • easy and quick connection of the individual components by means of manually screwed hose couplings with positive colour coding
  • no oil leakage during coupling or uncoupling of the jacks
  • coupling/uncoupling also possible under load
  • light rerailing bridges manufactured from profile sections which have been computer calculated and optimized as to static and dynamic properties
  • operation of the entire system by one operator from the control desk so that workers need not enter the load area
  • possibility to use rescue devices by means of pressure intensifiers
  • possibility to use pneumatically operated air bags by connecting a special hydraulically operated air compressor
  • all system components are weight-optimized to ensure easy portability

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