▪ Railway goods quality certification(Certification Number: NO.31)
▪ Material: Spring steel(SPS7)
▪ Used to fasten sleeper and rails in railway
▪ Various kind of rail fasteners can be developed due to the technology of line spring
▪ Type of Coil spring: For Wood Sleeper(e2001), For PC/RC Sleeper(e2007)
- Possible to supply stable price and timely delivery. Because of develop and manufacture various kinds of rail fastening such as W clip and Q clip are possible.
▪ Displacement elastic: ±0.50mm from 13mm fastened to the rail.
▪ Clamping force test: When the elasticity range of 13mm is given by the load tester, the clamping force of the clip is 10.8 ~ 13.7kN
▪ Applied sleeper
★ Product in eco-friendly manufacturing facility by applying electric induction heating method for the first time in Korea
- The method has propagated domestic at late 90s, and using in advanced countries such as Europe.
- Ensures high fatigue strength due to a thin decarburized layer
- Ensures uniformity of quality due to easy temperature control
- Possible to maintain clean workplace without pollution
▪ KRRI( Korea Railroad Research Institute) "Test Reports"