What is railway spikes:
Railway spikes, also called railroad spikes, rail spikes, are common fixtures on railways. It is mainly used to fix rail tie plates on wooden or concrete sleepers, or to fix steel rails on sleepers.
Classification of railway spikes:
Railway spikes are mainly divided into rail dog spikes and rail screw spikes. They are all used in railway fastening systems. It is mainly to ensure that the position of the rail in the sleeper is stable and does not move.
Dog Spikes and Screw Spikes:
Railway dog spike, also called cut track spike , are usually used in wooden railway fastener systems. Its top is square or round, while the bottom is a square wedge-shaped nail without sharp points. When installing the slide rail claw nails, it will be parallel to the cable ties on both sides of the slide rail.
Dog spikes are named after the two lugs on both sides. They look like dog heads. They are similar in size to screws and have the same function. The screw body of screw spikes is threaded, which greatly increases the production cost of screw spikes, but also increases the tightening capacity of screw spikes. Screw spikes are generally used on turnouts and heavy rails that require high track gauge. Dog spikes have low cost and excellent fastening effect. A large number of them are laid on the light rail. Both railroad spikes are mainly used for wooden sleepers. Screw spikes are also used in concrete sleepers together with plastic dowels embedded in the concrete sleepers.
Dog Spikes Specifications:
In order to meet the different requirements of spike penetration length, dog spikes are available in various sizes. For smaller rail parts, 5/8" * 6" and 9/16" * 5-1 / 2" are the most common types of dog spikes. They are usually packaged in the form of 200 lbs/barrel or 50 lbs/barrel. barrel.
Size: 5/8×6 inches, 9/16×5-1/2 inches, 3/8 inches×3-1/2 inches, 1/2×3-1/2, etc.
Material: A3, Q235, 45#, 55#, etc.
Surface: ordinary (oiled), oxide black, etc.
Standard: 3/8" 1/2" 9/16" 5/8" M16x16 M22 customized according to customer drawings or samples
Grade: 4.6 / 4.8 / 5.6 / 5.8 / 6.8 / 8.8 / 10.9 / 12.9
The manufacturing process of dog spikes
1. Raw material 2. Wire drawing 3. Shearing 4. Head forming 5. Rolling line 6. Heat treatment 7. Surface treatment 8. Inspection 9. Finished product 10. Packaging
Classification of Rail Screw Spikes:
According to the thread profiles, lengths, diameters and drive heads, rail screw spikes can be divided into: Ss series sleeper screws, square head screws, hexagon screws and double head screws
1. Ss series sleepers screw spikes
Ss series sleeper screws are the most commonly used screw spikes. The following are the dimensions of Ss series sleeper screws:
or according to
or according to
2. Square head screw spikes
Like her name, this type of railroad spike has a square head on one side and a thread on the other side.
3. Hex screw spikes
Hexagon screws include several different sizes, such as: M22 * 145, M22 * 155, M22 * 165, M22 * 185, M22 * 195 and so on. The following are the parameters of the hexagonal screw:
Tensile strength: Tensile strength:
|Elongation: ≥ 22%||Elongation: ≥ 20%||Elongation: ≥ 12%||Elongation: ≥ 9%|
|Cold bending: 90 degree|
|Surface||Plain (oiled) , Oxide black, Zinc, HDG, Wax, Bitumen, Dacromet, Sherardizing|
4. Double-head screw spikes
Like its name, the double-headed screw has two heads on both sides. Double-head screw spikes are very popular in Africa, mainly used in Nabla clip rail fastening system. In order to meet strict bending requirements, after bending at an angle of 30 degrees or more, straightening is applied by correcting special raw materials without any cracks.
|Grade||4.6, 5.6, 8.8, 10.9|
|Raw Material||Q235, 35#, 45#|
|Surface Treatment||Plain (oiled), Bluing, Zinc, HDG, etc.|
The manufacturing process of screw spikes:
Raw material → wire drawing → rod cutting → head forming → edge cutting → thread rolling → heating treatment → surface treatment → final inspection → packaging → shipment