Railway Dog Spikes
|
Model |
Overall Length |
Shank Diameter |
Head Type |
Shank Type |
Material |
Surface Treatment |
Anchoring Depth |
Pull-Out Force (Min.) |
Applicable Scenario |
Compliance Stds |
|
DS-100-L |
100mm |
16mm |
Square Head |
Smooth Shank |
Q235 Carbon Steel |
Hot-dip galvanizing (≥85μm) |
80mm |
8kN |
Light Rail (Tram) |
GB/T 152-2019, EN 13684-1 |
|
DS-125-M |
125mm |
18mm |
Round Head |
Ribbed Shank |
Q345 Carbon Steel |
Electro-galvanizing (≥25μm) |
100mm |
12kN |
Mainline (Passenger/Freight) |
GB/T 152-2019, AREMA 30 |
|
DS-150-HD |
150mm |
20mm |
Hex Head |
Threaded Shank |
45# Carbon Steel |
Dacromet (≥8μm) + Zinc Plating |
120mm |
18kN |
Heavy-Haul (Mining/Port) |
GB/T 152-2019, AREMA 30 |
|
DS-90-Metro |
90mm |
14mm |
Countersunk Head |
Smooth Shank |
Q235 Carbon Steel |
Epoxy Coating (≥60μm) |
70mm |
6kN |
Urban Metro (Wooden Sleepers) |
GB/T 152-2019, TB/T 3395.2 |
|
DS-110-HS |
110mm |
17mm |
Square Head |
Ribbed Shank |
35# Carbon Steel |
Hot-dip galvanizing (≥100μm) |
90mm |
10kN |
High-Speed Rail (Auxiliary) |
GB/T 152-2019, TB/T 3395.3 |
Performance & Durability Inspection Checklist
|
Management Stage |
Key Item |
Test/Operation Method |
Acceptance Criterion |
Sampling/Execution Rule |
Tool/Reference |
|
Incoming Inspection |
Material & Dimension |
Handheld PMI + Digital Caliper |
C: 0.17–0.24% (Q235); Length Deviation ≤±2mm; Diameter Deviation ≤±0.3mm |
5 pcs/batch; 10 pcs/batch |
Portable PMI Analyzer; 0.01mm Caliper |
|
Installation |
Anchoring Fit & Torque |
Mock Anchoring + Torque Wrench |
Fits Sleeper Hole Without Gap (>0.5mm); Driving Torque (18mm Shank: 35–50N·m) |
15 pcs/100m track |
Sleeper Hole Gauge; Adjustable Torque Wrench |
|
In-Service Check |
Pull-Out Force & Rust |
Pull-Test Machine + Salt-Spray Test |
Pull-Out Force ≥80% of Min. Value; No Rust After 400h Salt-Spray (Hot-Dip Galvanizing) |
3 pcs/km quarterly |
Digital Pull-Test Machine; Salt-Spray Chamber |
|
Durability Test |
Fatigue Resistance |
Vibration Test Bench |
No Loosening After 1×10⁶ Vibration Cycles (10Hz) |
2 pcs/batch |
Vibration Tester (1–50Hz Adjustable) |
|
Batch Audit |
Head Integrity |
Impact Test + Visual Inspection |
No Head Cracking After 10J Impact; No Deformation |
2% of Batch (Min. 3 Pcs) |
Charpy Impact Tester; 10× Magnifier |
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