Name: China Nabla Clips For Railway Fastener Manufacturers Suppliers Factory - Gnee Steel
Brand: GNEE
SKU: 296340517

Nabla Clips For Railway Fastener

Railway Clip is used to fasten the rails to the underlying base plate together with the concrete sleeper. A variety of different types of heavy-duty clips are used to fasten the rails to the underlying baseplate or Sleeper, one common being the E Clip, which is shaped like a stubby paperclip. Another one is the SKL Tension Clamp, which is also the most widely used type all over the world. Others like KPO Clamp and Nabla Clip, also used in different situations.

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Description

Technical Parameters

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Rail Nabla CLIP Fastening System

The Railway Nabla Clip is a triangular-profile elastic fastening component that generates clamping force through torsional deflection of its spring steel legs. Named after the Greek letter ∇ (nabla) for its distinctive shape, it creates a three-dimensional restraint system that simultaneously secures the rail vertically, laterally, and longitudinally while maintaining electrical insulation through integrated composite components

Technical Specifications:

System Component	Material Specification	Quantity Per Rail Seat	Key Performance Indicator
Nabla Clip	60Si2MnA / 60Si2CrA Spring Steel	2	42-47 HRC / 3M cycle fatigue life
Insulator	Reinforced Nylon 66 (30-35% GF)	2	≥1×10⁸Ω insulation resistance
Screw Spike	Grade 5.6: 35# Steel	2	≥500 MPa tensile strength
Spring Washer	ML08Al Steel	2	18.25×34×78mm dimensions
Height Adjustment	-	-	-8mm to +4mm range
Lateral Adjustment	-	-	±7.5mm per rail seat

Installation & Maintenance Perspective:

Functions as part of a complete fastening assembly including insulators, screw spikes, and spring washers .
Available in 4mm or 4.5mm thickness variants for different load requirements .
Manufactured from 60Si2MnA or 60Si2CrA spring steel with hardness of 42-47 HRC .
Compatible with reinforced nylon 66 insulators containing 30-35% glass fiber content .
Designed for use with UIC54, UIC60, 50kg, and 60kg rail profiles .

Maintenance & Operational Perspective

Delivers toe load of approximately 11 kN with spring deflection of 9mm .
Provides static stiffness of 70 kN/mm for consistent track support .
Achieves fatigue life exceeding 3 million cycles without failure .
Offers exceptional resistance to lateral load wear through deep post insulator design .
Maintains electrical insulation resistance of ≥1×10⁸Ω for track circuit compatibility .