| Customization: | Available |
|---|---|
| After-sales Service: | Returns and Exchanges |
| Warranty: | 1 Year |
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What is Nabla blade?
Nabla Clip is also known as Nabla blade, Nabla plate. It is an important component of the Nabla rail fastening system which is extensively used on French TGV High-Speed lines. The Nabla Clip generates its clamping force by tightening the nut in a controlled degree. Shape of Nabla chip
The Nabla blade's special shape creates a stable toe load on the rails when the nut is torqued. It is shaped like a thick trapezoidal shovel with a round hole in the middle.
Raw material and performance of Nabla clip
Material: 60Si2MnA
Surface: Red painting
MOQ: 5000PCS
Packing: Plastic bags and wooden pallets or according to clients' requirement.
The hardness of this elastic rail clip is HRC51-55 and 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. It is according to the requirement of client.
We produce high quality of these insulators and supply both for imports and exports.
The system has been largely used in tram applications, for ballasted track or slab track with concrete ties. Nabla fastening system offers improved electrical insulation and lateral force absorption. The unique use of glass-reinforced material in the lateral insulator also offers increased mechanical strength.
| Item Name | Rail Nabla Clip | |||
| Type | E clip (e1809, e2006,e2007,e2009,etc) | |||
| Skl clip (skl1,skl3,skl12,skl14) | ||||
| Or the type by customers' drawings | ||||
| Material | 60Si2MnA | 60Si2CrA | 55Si2Mn | 38Si7 |
| Chemical composition(%) | C:0.56-0.64, Mn:0.60-0.90, Si:1.60-2.00, Cr:≤0.35, P:≤0.03, S:≤0.03 | C:0.56-0.64, Mn:0.40-0.70, Si:1.40-1.80,Cr:0.70-1.00 P:≤0.03, S:≤0.03 | C:0.52-0.60, Mn:0.60-0.90, Si:1.50-2.00,Cr:≤0.35 P:≤0.03, S:≤0.03 | C:0.35-0.42, Mn:0.50-0.80, Si:1.50-1.80, P:≤0.03, S:≤0.03 |
| Hardness | For e clip: 44-48HRC For skl clip: 42-47HRC |
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| Fatigue life | for Dia.18 is 3 millions cycles without breaking for Dia.20 is 5 millions cycles without breaking |
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| Surface | plain (oiled), Oxide black, color painting, HDG, Zinc Plating... | |||
| Standard refers | DIN17221, BS970, GB/T1222 |
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