Dog spike, mainly used to connect the steel rail or rail plate with the rail sleeper. The cross section of each side is 16mm, and length is 165mm. The surface of the rod should be smooth and bright, flying edge shall not be more than 2mm. There shall be no crack in the joint of the head and the rod. The cutting edge shall not have burr and folding.

Dog spikes are a vital component in the railway industry used to secure rails to sleepers and maintain track stability. They are also known as railroad spikes, rail spikes, or coach screws and come in different types, sizes, and materials. Dog spikes have been in use for over a century and remain a popular choice for railway engineers and contractors due to their durability, strength, and ease of installation.

Production quality control to rail spike

We pay much attention to the quality control and management to the dog spike production, strictly in accordance with ISO9001-2008 QS. In addition, our rail spikes are approved by China's Ministry of Railways. What's more, our production base is equipped with full sets of inspection facilities to ensure the spike quality in order to meet our clients' requirements.
For the quality control from supplier to finished products, we operate following standard procedures:

Test the raw materials on production batch No, chemical compositions, physical properties, etc.

The quality controller selects samples from time to time for inspection and quality report issuance.

Depending on different requirements, we work out chemical or physical inspection accordingly. If the result disobey our requirement, we refuse the materials, till satisfied finally.

For the semi-finished products or outsource parts, we often organize quality control coordination meetings on technical assistance and guidance, aiming to ship qualified products to our customers.

Dog spikes play a crucial role in the railway industry as they help to maintain track stability and prevent derailments. They are designed to withstand the pressure and impact of heavy trains, extreme weather conditions, and environmental factors. Proper installation and maintenance of dog spikes are critical to ensuring the safety and efficiency of railway systems.