How to remove a screw spike?

Screw spikes are essential components in railway construction and maintenance, providing a secure connection between the rail and the sleeper. However, there are times when you need to remove a screw spike, whether for track repair, replacement, or other maintenance tasks. As a leading screw spike supplier, I understand the importance of proper removal techniques to ensure the integrity of the track and the safety of railway operations. In this blog post, I'll share some effective methods on how to remove a screw spike.

Understanding the Structure and Function of Screw Spikes

Before delving into the removal process, it's crucial to understand what screw spikes are and how they work. Screw spikes are designed with a threaded shank and a head, which is usually square or hexagonal. They are screwed into pre - drilled holes in the sleeper, creating a tight fit that holds the rail firmly in place. Over time, due to factors like vibration, weather conditions, and heavy traffic, the screw spikes may need to be removed and replaced.

Tools Required for Screw Spike Removal

To remove a screw spike, you'll need the following tools:

1. Screw Spike Puller: This is the most common and specialized tool for removing screw spikes. It is designed to grip the spike firmly and apply the necessary force to pull it out.
2. Wrenches: Depending on the type of spike head, you may need a square or hexagonal wrench to loosen the spike if it is not too tightly fixed.
3. Hammer: A hammer can be used in combination with other tools to help break the bond between the spike and the sleeper, especially if the spike has been in place for a long time.
4. Safety Equipment: Always wear safety goggles, gloves, and appropriate footwear to protect yourself during the removal process.

Step - by - Step Guide to Removing a Screw Spike

Step 1: Inspection

Before starting the removal process, carefully inspect the screw spike and the surrounding area. Check for any signs of damage, corrosion, or deformation. If the spike is severely damaged or corroded, it may require special handling. Also, ensure that there are no other components nearby that could be affected during the removal process.

Step 2: Loosening the Spike

If the screw spike is not too tightly fixed, you can try to loosen it using a wrench. Place the appropriate wrench on the spike head and turn it counter - clockwise. Apply steady and even pressure to avoid damaging the spike or the sleeper. If the spike is stuck, you can tap the wrench gently with a hammer to help break the initial resistance.

Step 3: Using a Screw Spike Puller

If loosening the spike with a wrench is not successful, it's time to use a screw spike puller. Here's how to use it:

1. Position the puller: Place the puller jaws around the screw spike head. Make sure the jaws are firmly attached and centered on the spike.
2. Apply force: Use the lever mechanism of the puller to apply upward force. Start slowly and gradually increase the force until the spike begins to move. Be patient and avoid using excessive force, as this could damage the sleeper or the puller.
3. Remove the spike: Once the spike starts to move, continue applying force until it is completely removed from the sleeper.

Step 4: Cleaning the Hole

After removing the screw spike, clean the hole in the sleeper. Use a brush or compressed air to remove any debris, dust, or rust that may have accumulated inside the hole. This will ensure a proper fit for the new spike if you plan to replace it.

Special Cases and Considerations

Corroded Screw Spikes

Corrosion can make screw spike removal extremely difficult. In such cases, you can try applying a rust - penetrating oil to the spike. Let the oil soak in for a few hours or overnight to help loosen the rust. Then, follow the steps mentioned above to remove the spike. If the corrosion is severe, it may be necessary to use more aggressive methods, such as cutting the spike with a saw. However, this should be done with caution to avoid damaging the sleeper.

Damaged Screw Spikes

If the screw spike is damaged, such as having a broken head, it may be more challenging to remove. In some cases, you can use a pair of pliers or a special extraction tool to grip the remaining part of the spike and pull it out. If the spike is broken below the surface of the sleeper, you may need to drill out the remaining part carefully.

Alternative Methods for Screw Spike Removal

In addition to the traditional methods, there are some alternative techniques that can be used in certain situations:

1. Hydraulic Removal: Hydraulic tools can provide a high amount of force for removing stubborn screw spikes. These tools are often used in large - scale railway maintenance projects.
2. Heat Application: In some cases, applying heat to the screw spike can help expand the metal and loosen the bond with the sleeper. However, this method requires special equipment and should be used with extreme caution to avoid damaging the sleeper or other components.

Related Railway Accessories

As a screw spike supplier, I also offer a wide range of related railway accessories, such as 60Si2CrA Rail Clip, Fish Bolt, and Welded Rail Clip. These accessories play important roles in railway track construction and maintenance, working in conjunction with screw spikes to ensure the stability and safety of the railway system.

Conclusion

Removing a screw spike is a task that requires proper tools, techniques, and safety precautions. By following the steps outlined in this blog post, you can effectively remove screw spikes without causing significant damage to the sleeper or other components. Whether you are a railway maintenance professional or involved in a DIY railway project, understanding how to remove screw spikes is an important skill.

If you are in need of high - quality screw spikes or any of our other railway accessories, please feel free to contact us for more information and to discuss your procurement needs. We are committed to providing the best products and services to meet your requirements.

References

1. Railway Track Maintenance Handbook.
2. Technical Guidelines for Railway Construction and Maintenance.