Description
Technical Parameters
Railway Dennik Clip - Technical Data Sheet
| Feature | Specification |
|---|---|
| Product Name | Dennik Clip (Heavy Duty Rail Fastener) |
| System Type | Elastic Rail Fastening System for Ballasted Track |
| Primary Function | To secure the rail base to the tie plate and sleeper, providing high clamping force and rollover protection. |
| Key Characteristic | "Locked-in" Design. The clip is hammered into a pre-formed housing in the tie plate, creating a highly secure, vibration-resistant connection. |
| Material | High-Carbon Spring Steel (e.g., AISI 1065, 1070) or Micro-Alloyed Steel. |
| Surface Treatment | Black Oxide Coating or Phosphating for corrosion resistance and reduced friction during installation. |
| Installation | Installed by driving (hammering) the clip into the tie plate's shoulder housing using a manual or pneumatic hammer. |
| Removal | Requires a special pry bar or removal tool to lift the clip out of its housing. |
| Clamping Force (Toe Load) | Very High, typically in the range of 12 - 16 kN. |
| Application | Primarily used in Heavy-Haul Railways (North America, Australia, mining lines), and in severe-service environments like sharp curves and grades. |
| Key Advantages | • Extremely High Resistance to Loosening from vibration • Superior Rollover Prevention • Robust and Simple Design • Well-suited for Wooden and Concrete Sleepers • Proven performance in extreme conditions |
Comparison with Other Heavy-Duty Clips
| Clip Type | Clamping Force | Installation Method | Typical Application |
|---|---|---|---|
| Dennik Clip | Very High (12-16 kN) | Hammering / Driving | Heavy-Haul, Sharp Curves, Mining |
| Nabla Clip | Very High (11-14 kN) | Stretching / Tensioning | High-Speed Rail, Ballastless Track |
| e-Clip (Pandrol) | High (9-11 kN) | Pressing / Leverage | Universal Mainline, Mass Transit |
| Fastclip | Medium-High (9-11 kN) | Pressing / Compression | Mainline, Mass Transit |
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