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  • Steel compression spring for locomotive
  • Steel compression spring for locomotive

Steel compression spring for locomotive

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The secondary suspension system is a suspension system that links the frame and the car body. It also includes springs, damping, and positioning mechanisms. At the same time, it also restricts the side turning of the car body. 

There are two main types of suspension systems used in trains, both of which are involved with springs. 


The primary suspension consists mainly of a normal spring damper system which supports the structural suspension of the carriage and entire train. These damper systems are present in every bogie existing between the axle box and the bogie.


  • Description
  • Specification
  • Benefits
  • Drawings

The secondary suspension system is a suspension system that links the frame and the car body. It also includes springs, damping, and positioning mechanisms. At the same time, it also restricts the side turning of the car body. 

There are two main types of suspension systems used in trains, both of which are involved with springs. 


The primary suspension consists mainly of a normal spring damper system which supports the structural suspension of the carriage and entire train. These damper systems are present in every bogie existing between the axle box and the bogie.


The primary springs link the axle box to the bogie frame.It reduces forces and vibrations and help to prevent derailment.


Railway coil bogie spring


Parameters
Wire diameters(d)12-70mm
Coil diameters(D) 60-500mm
Free height(L0) 180-1000mm
Weight(Kg) 4-160
Number of active coil(N)3-12 or depend on drawing
ElementsInternal spring and external spring
Materials60Si2Mn, 60Si2MnA, 60Si2CrVA,  60Si2CrVAT,50 CrV4, 51CrMoV4 and so on
CertificationsISO 9001,UIC 822 DIN 2096,EN 13298.
Usage Bogie of K2, K4, K8, Y25 with axle load of 21t, 22.5t, 25t etc.
Export destinationWe have exported to Vietnam, Pakistan, Namibia, Venezuela, Burma, Thailand, Angola,Sudan, Australia, etc.

Springs can be manufactured according to customer's requirement.

Railway coil bogie spring

Railway coil bogie spring


The primary springs link the axle box to the bogie frame.It reduces forces and vibrations and help to prevent derailment.

Railway coil bogie spring

Railway coil bogie spring

Wire diameters(d)Coil diameters(D)Free height(L0)Weight(Kg)Number of active coil(N)
12-70mm60-500mm180-1000mm4-1603+

Railway coil bogie spring