We produce rubber seals for railway expansion joints.
Project Overview
This project involved the production of EPDM rubber seals for railway expansion joints for a customer in Thailand.
The seals were manufactured through EPDM rubber extrusion according to the customer’s profile design and dimensional requirements.
Function of Railway Expansion Joint Seals
Railway expansion joints are used to accommodate thermal expansion and contraction of rail tracks and supporting structures.
Rubber seals installed in these joints help:
- prevent water penetration
- block debris from entering the joint
- maintain flexible movement between structures
Material – EPDM Rubber
EPDM rubber is widely used for outdoor sealing applications because it offers:
- excellent weather resistance
- good UV and ozone resistance
- long service life in outdoor environments
These properties make EPDM suitable for infrastructure projects such as railways, bridges, and road expansion joints.
Material
EPDM
Process
Extruding
Product develop Process
The client supplies the rubber strip sample together with the matched aluminium railway part.
We extrude the profile by the range of the EPDM property table.
After the sample is approved, we begin batch production.
Length requirement
Theoretically, the EPDM extruding profiles could be extruded for unlimited length, but due to the weight problem of packing, we can only extrude the profile by a certain length, the detailed length can be discussed during the production.
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