The rail fastening system of SB W3-type is a next modification of SB-type rail fastening system, where all of the rail mounting elements are designed and produced by Plastwil. The technological innovation has been applied to the construction and characteristics of electro-insulating hold-down part of WIW type and rail pad of PWE type. This system is characterized by the optimized parameters responsible for the way rail is fastened.
The SB4-type rail clip can be used alternative to other SB-type rail clips.
The unique bending technology and high quality material guarantee that the product ensures the required pressure of the rail to the sleeper, as well as the possibility of resilient deformation of the rail in a horizontal plane by the action of lateral forces.
- the construction of SB4-type rail clip effects on smaller change of the clamping force as a result of exposure to repeated loading
- guaranty of stability of SB4-type rail clip during the longterm service (without the risk of disconnection by itself)
- improved quality of SB4-type rail clip, favorable stress distribution in the arms of the rail clip
- WIW-type electro-insulating hold-down part of WIW-type reduces the utility costs without loss of performance parameters, thanks to the reduced weight and its asymmetrical shape
- the used combination of PWE-type rail pad and SB4-type of rail clip allows to obtain a very high ability to attenuate impact loads of 61,2%
