What fasteners make up a Nabla railway fastener system

The Nabla Fastening System is an safe and reliable system, most widely used in Europe. It can be used in Tram, LRT, Metro, Main Line and High Speed tracks. The special shape of the Nabla blade generates a dynamically stable toe load on the rails when the nut is torqued.

The Nabla clips'hardness of this elastic rail clip is HRC51-55 and all our elastic railway clips have excellent elastic property, with load 2500DaN. After the first two tests, variation of the height after releasing is only 0.45mm and after three more tests, there is only 0.1mm variation of height. The finished Nabla clip can be painted red or other colors, according to the requirement of our client.

Rail insulator, also called railroad insulator, rail insulation, rail nylon insulator, it is installed between steel rail and tie plate, for adjusting rail gauge and electrically insulating railroad rails, rail clips and rail bolts from the interior of a concrete sleeper.

The screw spike is also known as rail screw. As one kind of Rail spike, it is a metal screw for fixing rail fasteners. Screw spike is usually made of NO.3 steel. Because its nail rod surface has thread, so it is called screw spike. The pull-out resistance is 0.5 ~ 1.0 times larger than that of common rail spike, but the thrust resistance is 50% less.

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