RAIL SPIKE

CUSTOMIZE DIFFERENT RAILWAY FASTENERS ACCORDING TO DIFFERENT STANDARDS

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AGICO Rail Spike

AGICO manufactures and supplies a wide range of rail spikes for railways. Railway spikes, also known as rail spikes, have high design precision and mature processing technology. After decades of testing, AGICO selects high-quality raw materials for the production of road studs to meet higher quality standards. These products have improved reliability, robustness and effective performance and are used in large-scale railway projects. Railway spikes mainly include screw spike and dog spike.

Types and Specification of Rail Spike

Product Name	Type	Specification	Weight/kg	Surface	Standard
Ss Series Sleeper Screw	Ss 1/130	M22*130	0.451	Natural Zinc Paint Oil According to your needs.	UIC AREMA GB or According to your drawings or samples.
	Ss 1/150	M22*150	0.478
	Ss 2/180	M22*150	0.595
	Ss 5/150	M24*150	0.545
	Ss 6/150	M26*150	0.702
	Ss 7/180	M24*180	0.636
	Ss 8/140	M24*140	0.528
	Ss 8/150	M24*150	0.548

Product Name	Specification	Material	Surface	Standard
Square Head Screw Spike	M22*145	45# 55Q Q235 or According to your needs.	Natural Zinc Paint Oil or According to your needs.	UIC AREMA DIN GB or According to your drawings or samples.
	M22*155
	M22*165
	M22*185
	M22*195
	Other kinds

Product Name

Grade

Material

Mechanical

Surface

Hexagon Screw Spike

4.6

Q235

Tensile strength:

≥ 400Mpa

Yield strength:
≥ 240Mpa

Elongation: ≥22%

Cold bending: 90 degree

Without Crack

Plain (oiled) , Oxide black, Zinc, HDG, Wax, Bitumen, Dacromet, Sherardizing

5.6

35#

Tensile strength:

≥ 500Mpa

Yield strength:
≥ 300Mpa

Elongation: ≥20%

8.8

45#

Tensile strength:

≥ 800Mpa

Yield strength:
≥ 640Mpa

Elongation:≥12%

10.9

40Cr

Tensile strength:

≥1000Mpa

Yield strength:
≥ 900Mpa

Elongation: ≥9%

Product Name	Size	Grade	Raw Material	Surface Treatment
Double-head Screw Spike	23×174	4.6, 5.6, 8.8, 10.9	Q235, 35#, 45#	Plain (oiled), Bluing, Zinc, HDG, etc.

Product Name	Specification	Material	Surface	Standard
Dog Spike	5/8×6	A3, Q235, 45#, 55#, etc	According to customer needs.	According to customer’s drawings or samples
	9/16×5-1/2
	3/8×3-1/2
	1/2×3-1/2
	Other kinds

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About AGICO Rail Spike

Screw spike is medium or large metal screw used to fasten rail base plates or rails, such screw spike is always secured in holes drilled in the sleepers, sometimes with embedded plastic dowel, usually used on rails with wooden sleepers. Screw spike can vary in thread profile, length, diameter and drive head depending on specific geographic requirements. Screw spike can be divided into four types, including Ss series sleeper Screw, square head screw spike, hexagon screw spike, and double-head screw spike.

Dog spike is a large nail with an offset head used to secure rails and base plates to sleepers in the track. dog spike is roughly chisel-shaped with flat-edged tips. The edge and grain of the dog spike is driven in the opposite direction when driven into the sleeper, which provides greater fastening capacity. The main function of the dog spike is to maintain the gauge of the steel rail. Dog Spike provides a strong, simple and affordable solution for securing rails.

Dog spikes and screw spikes are the two most common types of rail spikes produced by AGICO, which are small parts used to secure rail fastening systems. Generally speaking, screw spikes are mainly used for heavy rail applications and dog spikes are used for light rail applications.

The dog spike was first invented in 1832. It is named for its two lugs on both sides, which are shaped like a dog’s head. Its size is similar to that of a spiral spike, with a radius dog nail flange, which can directly fix the rail to the sleeper.

While screw spikes first appeared in 1860, they are more popular than dog spikes because of their greater holding force, about twice that of dog spike, and the ability to combine with spring washers. But even though screw spikes are more expensive to manufacture than dog spikes, screw spikes are less expensive to maintain.

1. The first is to check the shape of the head screw. Mold trial is the most important link in the forming process of screw spike. A good mold is the prerequisite for making good screw spike.
2. The next step is to check the production machine of the screw spike, which is conducive to safe and smooth production.
3. The formed screw spike should be checked for burrs and its exact size should be measured.
4. Thread detection. The detection of thread pitch should also meet the requirements of customers and international standards.
5. The last step is the screw spike shipment inspection. Pick out the unqualified screw spike, and then leave the best quality screw spike to customers.

Corrosion Factors and Protective Measures of Rail Spike

Effect of relative humidity: Relative humidity refers to the humidity of the atmosphere. Generally speaking, the higher the relative humidity, the easier it is for the surface of railway screw spikes to form a water film, and the longer the water film lasts, the more likely it is for atmospheric corrosion to occur.
Effect of temperature: The change of temperature, that is, the existence of temperature difference, has a great influence on atmospheric corrosion. For example, because the rail spike is in an outdoor environment, the temperature changes between hot and cold day and night may cause water vapor to condense on the metal surface to form a water film, thereby accelerating corrosion.
Effect of dust particles: when a train passes by, it increases the presence of dust particles. These dust particles accelerate corrosion when they land on ferrous metal surfaces. When the particles are large, they will form crevices with the iron metal surface, which will also cause crevice corrosion.

Regularly apply a protective coating to rail spike: Severe convective weather, thunderstorm weather, high temperature and high pressure environment and many other conditions will lead to a decline in the quality, shape, strength, durability and other aspects of the screw spike itself.
Regular inspections: it is necessary to set up special personnel to conduct inspections in road sections where the environment changes rapidly. Preventing problems with screw spikes during use. In this way, the role of railway spikes in railway transportation can be better guaranteed.

Why Choose AGICO Rail Spike

With ISO and CRCC certification, AGICO tries its best to save cost for each customer by upgrading our production equipment and testing facilities and quality management system to be more efficient, economical and good quality control ability. Quality and reliability have always been our culture. We will never stop upgrading and developing, and will use our whole life to provide the best quality and service.