Damper Railway Suspension System

Product Overview

A hydraulic railway damper is a device designed to absorb and reduce shock impulses incurred when a railcar is in motion. Dampers also help reduce noise and track wear. They operate on diesel and electric locomotives, passenger mainline coaches, and diesel and electric multiple-unit trains. It can be divided into 4 categories. Primary Vertical damper, Secondary vertical/lateral damper,Yaw damper and Coupling damper. For here it is primary vertical damper(axle box damper),used to control vertical movement between axle box and bogie. I.E nodding vibration.

Product specification

Product advantage

· CRCC approved

· Meet TB/T1491-2015 and EN13802-2015

· Applied to train speed max to 160km/h

· More than 100 various size, and customzied is available.

· be able to withstand attack of sand, rain, snow, strong sunlight, corrosive air, salt atmosphere and ozone

· Good endurence to low frequency of 5*10⁶and high frequency 6*10⁶

Main Structure

1.rubber bush  2. Tube  3.Piston rod  4. Nut  5.Nut  6.Retainer  7.corrugated oil seal  8.Guide cover

9.Inner tube    10.Seat valve             11.Tube       12.o-seal 13.Piston 14.Piston ring 15.Bellow pot

Drawing of hydrauulic damper

Type

Connecting method

Application

Related products

There are other 3 categories as below:

Primay oil damper

it consists of vertical and lateral oil damper, which aims to control nodding vibration and bouncing vibration between carbody and bogie.

Yaw damper

Yaw dampers are a special feature of rail vehicles. They control the sine wave effects of the bogie, increasing safety at medium and high speeds.

Coupling damper

A coupling damper improves the quality and precision of your braking when towing by assisting with the gradual applying of the brakes both on and off.