Description
Technical Parameters
Rail Nabla Clips Specifications
| Attribute | Description |
|---|---|
| Product Name | Rail Nabla Clips/∇-type Spring Clip |
| Shape | Resembles an inverted triangle (∇), which is different from the conventional ω-type spring clips. |
| Application | Mainly used in non-passenger-carrying low-speed sections such as the storage tracks and parking tracks of urban rail transit systems like subways and light rails. |
| Material | Usually made of high-strength spring steel, such as 60Si2MnA. |

Nabla Clip vs. Other Fasteners
| Aspect | Rail Nabla Clips (∇-type Spring Clips) | Other Spring Clips (e.g., ω-type Spring Clips) |
|---|---|---|
| Shape | Resembles an inverted triangle (∇), with a distinct triangular profile. | Typically feature an ω-shaped (omega) profile, which is curved and more rounded in appearance. |
| Application Scenarios | Primarily used in non-passenger, low-speed sections such as storage tracks and parking tracks of urban rail transit (subways, light rails). | Widely applied in main lines of various railway systems, including conventional-speed railways, high-speed railways, and mixed passenger-freight lines. |
| Clamping Force | Generally lower clamping force, suitable for low-demand, low-speed track sections. | Higher clamping force (varies by model) to withstand dynamic loads from high-speed trains and heavy freight traffic. |
| Material Hardness | Typically has a hardness range of HRC 51–55. | Hardness varies by type (e.g., Chinese Type Ⅰ/Ⅱ/Ⅲ ω-clips use 60Si2MnA steel) but often falls in a different range tailored to high-stress conditions. |
gnee-professional supplier


Hot Tags: nabla clip fastening, China nabla clip fastening manufacturers, suppliers, factory, rail clip anti corrosion coating, rail clip bending tools, rail clip bolting, rail clip tightening tools, rail fastening clips, railroad clips











