Rail fastening System

Rail fastening System production of our complete control according to the ISO9001-2008 quality system, we have obtained the production license of the Ministry of Railways Railway products China. We have a full set of testing equipment to ensure that all of our bolts product quality, meet customer requirements. All processes are in accordance with the ISO quality management system requirements, from the supplier's quality control to the finished product, we are in accordance with the standard procedures for the operation of suppliers, we have a strict quality control system:
1, the inspection and testing of raw materials, we ask the supplier to provide production batch number, chemical composition, mechanical properties, such as the detection index.
2, our quality control inspectors to control in the process of testing samples detected by sampling and batch and provide raw materials certificate and other means.
3, according to the different requirements of the product, we make the corresponding physical and chemical testing and testing. If the result does not meet our requirements, we will refuse to accept, only the material to meet our standards to receive.
4, for the production of semi-finished products and their manufacturers, we often organize quality control and coordination meetings, and provide technical support and guidance. Ensure that the products are delivered to our customers before shipment.
Our company produces various kinds of subway/metro fasteners or light rail fasteners, including types of DT Ⅲ fastening system, DT Ⅳ fastening system, DJK5-1 fastening system, DJK6 and so on.

DJK5-1 fastening system
It applies to 50 kg/m rail and is indirect spring system with Gauge Adjustment range: +8～-12mm.




Type DTVI2 Fastening System
It applies to 60 kg/m rail of sleeper without shoulder and is indirect spring system with Gauge Adjustment range: +8～-12mm.



DTⅣ1 fastening system
It applies to 50 kg/m rail and is indirect spring system with Gauge Adjustment range: +4～-8mm.



DJK6 fastening system
It applies to 60 kg/m rail of sleeper without shoulder and is indirect spring system with Gauge Adjustment range: +8～-12mm.
DT Ⅲ & DT  Ⅳ  fastening system
DT Ⅲ applies to 60 kg/m rail and DT Ⅳ applies to 50 kg/m rail. This system’s top adjustment height  is 10mm and Gauge Adjustment range: +8～-12mm.