Why Has My Gas Spring Stopped Working?

1. Loss of Gas Pressure

One of the most common reasons a gas spring stops working is the loss of gas pressure. Gas springs are filled with compressed gas (usually nitrogen) that creates the force needed to lift or support an object. Over time, seals can wear out or become damaged, allowing the gas to escape. This loss of pressure results in a significant reduction in the spring’s lifting capacity, making it ineffective.

Signs of Loss of Gas Pressure:

• The gas spring feels weak or does not hold the weight of the object.
• The object falls or drops unexpectedly when the gas spring is released.
• The gas spring extends or retracts slowly.

2. Seal Damage

The seals in a gas spring are crucial for maintaining pressure. If these seals become damaged due to wear and tear, exposure to extreme temperatures, or chemical exposure, they can allow gas to escape. Additionally, dirt and debris can accumulate around the seals, leading to further damage.

Signs of Seal Damage:

• Visible oil or gas leakage around the seals.
• Difficulty in extending or retracting the gas spring.
• Unusual noises, such as hissing or popping, when the gas spring is in use.

3. Corrosion and Environmental Factors

Gas springs are often exposed to various environmental conditions, including moisture, salt, and extreme temperatures. Corrosion can weaken the metal components of the gas spring, leading to structural failure. Additionally, exposure to harsh chemicals can degrade the materials used in the gas spring, further compromising its functionality.

Signs of Corrosion:

• Rust or discoloration on the gas spring.
• Physical deformities or pitting on the surface.
• Reduced performance in extreme weather conditions.

4. Overloading

Every gas spring has a specified load capacity. If the gas spring is subjected to a weight that exceeds its rated capacity, it can lead to premature failure. Overloading can cause the seals to rupture, the gas to escape, or even structural damage to the spring itself.

Signs of Overloading:

• The gas spring struggles to lift or support the intended weight.
• Visible deformation or bending of the gas spring.
• Unusual noises or resistance when operating the gas spring.

5. Manufacturing Defects

While rare, manufacturing defects can occur in gas springs. These defects may include improper sealing, incorrect gas filling, or substandard materials. If a gas spring fails shortly after installation, it may be due to a manufacturing issue.

Signs of Manufacturing Defects:

• Immediate failure upon installation.
• Inconsistent performance compared to similar gas springs.
• Lack of warranty or support from the manufacturer.

6. Age and Wear

Like any mechanical component, gas springs have a finite lifespan. Over time, the materials can degrade, leading to reduced performance. Regular use can also contribute to wear and tear, making it essential to monitor the condition of your gas springs.

Signs of Age and Wear:

• Gradual loss of lifting capacity over time.
• Increased difficulty in operation.
• Changes in the gas spring’s appearance, such as cracks or discoloration.