Q235 Steel Plain Washer Nabla System for Cost-Effective Regional Rail Projects

• Customization: Available
• Warranty: 1-3years
• Customized: Customized
• Model NO.: Nabla
• Certification: ISO14001, ISO9001
• Transport Package: Woven Bags & Pallets
• Specification: Nabla
• Trademark: SUYU or customized
• Origin: China
• HS Code: 73029090
• Production Capacity: 100000PCS/Per Day
• Package Size: 100.00cm * 150.00cm * 200.00cm
• Package Gross Weight: 5.000kg

Product Description

The Nabla fastening system, a remarkable innovation in railway technology,

The Nabla fastening system, celebrated for its superior design, is renowned as a safe and reliable railway fastening system, extensively utilized across Europe, North America, and Africa, representing the pinnacle of global railway safety.. Generally, the Nabla fastening system finds its application in Tram, LRT, Metro, Main Line, and High-Speed tracks. The unique configuration of the Nabla blade induces a dynamically stable toe load on the steel rails when the rail nut is torqued, ensuring optimal performance.

Each complete set comprises 4 Nabla clips, 4 Nabla insulators, 4 screw spikes, 4 flat washers, and 4 screw dowels, providing a comprehensive solution for secure rail fastening.



 

Product Description

The Nabla Rail Fastening System, featuring the resilient Nabla Spring Clip, is designed to securely fasten UIC DIN Standard Rail. This rail fastening system integrates rail pads, clips, and insulating concrete sleepers, all of which are single-type to streamline maintenance procedures. This pre-assembled fastening system means that the sleepers arrive on-site with all components already assembled, resulting in faster and more efficient track laying. It is designed to deliver unparalleled ride quality for passenger traffic.

A screw spike, or rail screw (also known as a lag bolt), is a substantial (~6 in or 152 mm length, slightly under 1 in or 25 mm diameter) metal screw used to secure a tie plate or fasten rail. These screw spikes are embedded into pre-bored holes in the sleeper, ensuring stability.
A tie plate, also known as a baseplate or sole plate, is a steel plate used on rail tracks between flanged T rail and the crossties. It enhances the bearing area and maintains the correct gauge, secured to wooden ties using spikes or bolts through the plate's holes.
A Rail Pad is a resilient insulating material positioned between the rail foot and either the sleeper or the baseplate surface.
A Spring Clip is a robust metal fastener crafted from spring steel, designed to firmly clamp the rail foot to the
sleeper or baseplate, ensuring a secure connection.

Technical Parameters

Part name	Type	Material	Finish	Remark
Nabla clip	Thickness 4mm or 4.5mm	60Si2MnA, 60Si2CrA	Plain oiled, red color painting, or the other required by customers	Hardness: 42-47HRCFatigue life: 3 millions cycles without breaking Standard: DIN17221, GB/T1222
Insulator	UIC54, UIC60, S49 rails	Reinforced Nylon 66 (PA66)	Black, blue, yellow, green or other colors	Different designs are available.
Double end screw spike	UIC54, UIC60, 50kg rail, 60kg rail	Grade 5.6: 35#	Plain oiled, black oxide, galvanized, hot dip galvanized	Bending at 30 degree without crack.
Special spring washer	18.25×34×78mm	ML08Al	Plain oiled, black oxide, galvanized, hot dip galvanized	For protecting the thread of the double end screw spike
Hex nut	As ordered	Grade 5: 35#	Plain oiled, black oxide, galvanized, hot dip galvanized	Standard: DIN985
Plain washer	As ordered	Q235	Plain oiled, black oxide, galvanized, hot dip galvanized	Standard: DIN125

 

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