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      • Published 12 Mar 2024
      • Last Modified 12 Mar 2024
    • 8 min

    Gas Springs: Applications, Types, and Choosing the Right Solution in New Zealand

    Our guide explains everything you need to know about gas springs, how to use them, and the best products.

    Everything You Need To Know About Gas Springs and Gas Struts

    What are Gas Springs?

    Gas springs, also known as gas struts or gas stays, are a type of lifting mechanism that utilises pressurised gas to support, lift, or lower heavy objects. These versatile tools can be found in a wide range of applications, from industrial machinery to everyday household items. In this article, we’ll take a closer look at how gas springs work, their various applications, and the different types available in New Zealand.

    Browse all Gas Springs

    How do Gas Springs work?

    Gas springs operate on a simple yet effective principle. Inside the gas spring, there is a piston and rod mechanism that moves back and forth within a sealed cylinder. This mechanism creates two distinct chambers, one filled with compressed gas and the other with hydraulic fluid.

    When pressure is applied to the gas spring, the piston is forced to compress the gas in one of the chambers. This compression creates a resistance, which is used to counterbalance the weight of the object the gas spring is supporting. As the gas spring is extended, the piston moves, allowing the gas to expand and the hydraulic fluid to flow between the two chambers, providing a smooth and controlled motion.

    Gas springs are available in a range of sizes and pressure ratings to accommodate different loads and applications. They can be customised to provide the precise amount of lifting or supporting force required for a specific task.

    What are Gas Springs used for?

    Gas springs are used in a wide variety of applications, from industrial machinery to everyday items. Here are a few common uses for gas springs in New Zealand:

    Bonnet Struts:

    Gas springs are commonly used to support the weight of a vehicle’s bonnet or hood, making it easier to open and close.

    Canopy Struts:

    Gas springs are often used in the installation of canopies on vehicles or in outdoor settings. They help to support the weight of the canopy, making it easier to open and close.

    Door Gas Struts:

    Gas springs can be used in doors to provide a smooth and controlled opening and closing motion. They are commonly used in hinged doors, sliding doors, and other types of doors.

    Industrial Machinery:

    Gas springs are widely used in industrial machinery to lift and support heavy loads. They can be found in manufacturing equipment, assembly lines, and other industrial applications.


    Gas springs are often used in furniture, such as office chairs and recliners, to provide adjustable support and smooth motion.

    Types of Gas Springs

    Gas springs come in a variety of types and configurations, each designed to meet specific needs and applications. Here are a few of the most common types of gas springs:

    Lockable Gas Springs:

    Lockable gas springs, as the name suggests, have a locking mechanism that allows you to fix the gas spring in a specific position. This is useful for applications where you want the gas spring to hold the load in place without any movement.

    Adjustable Gas Springs:

    Adjustable gas springs allow you to customise the amount of force or pressure within the gas spring. This flexibility makes them ideal for situations where you may need to fine-tune the lifting or supporting force.

    Compression Gas Springs:

    Compression gas springs are typically used in applications where the primary function is to compress or push. They are commonly used in machinery and industrial settings.

    Traction Gas Springs :

    Traction gas springs are designed for applications where a pulling force is required. They are often used in situations where a gas spring needs to assist in opening or closing a door or lid.

    In addition to these common types, there are many other specialised gas springs available, each tailored to specific industries and applications. When choosing a gas spring for your project, it’s important to consider the type that best suits your needs to ensure optimal performance and safety.

    How to Choose the Right Gas Spring

    Choosing the right gas spring for your specific application is crucial to ensure that it operates safely and effectively. Here are a few key factors to consider when selecting a gas spring:

    Load Capacity:

    The most important factor to consider is the load capacity of the gas spring. You’ll need to know the weight of the object the gas spring will be supporting or lifting. Be sure to choose a gas spring with a load capacity that exceeds the actual weight of the object to provide a safety margin.

    Stroke Length:

    The stroke length of a gas spring refers to the distance it can extend and compress. You’ll need to choose a gas spring with a stroke length that matches the requirements of your application.

    End Fittings:

    Gas springs come with a variety of end fittings to accommodate different mounting configurations. Be sure to choose end fittings that are compatible with your specific application.

    Type of Gas Spring:

    Consider the different types of gas springs, such as lockable, adjustable, compression, and traction gas springs, and choose the type that best suits your needs.

    If you’re unsure about which gas spring is right for your project, it’s always best to consult with a gas spring specialist. They can help you determine the correct gas spring based on your specific requirements, ensuring a safe and efficient solution.

    Fitting Gas Springs

    Fitting gas springs, also known as gas strut installation, requires careful consideration of the load, mounting position, and safety precautions. Here’s a basic guide to fitting gas springs:

    Determine the Correct Position: Gas springs should be mounted in a way that allows for a straight, unobstructed path of motion. Consider the weight and size of the object being lifted or supported to determine the correct position for mounting the gas spring.

    Calculate the Force: Gas springs are available in different force ratings. Calculate the required force based on the weight of the object and the desired motion. It’s important to choose a gas spring with a force rating that matches your calculations.

    Safety Precautions: When fitting gas springs, be sure to follow all safety guidelines provided by the manufacturer. This may include using safety cables to prevent the gas spring from falling in the event of a failure.

    End Fittings: Gas springs come with a variety of end fittings for different mounting configurations. Ensure that the end fittings are securely attached to both the gas spring and the object it is supporting.

    Professional Installation: For larger or more complex applications, it’s best to have gas springs installed by a professional. They can ensure that the gas springs are fitted properly and safely.

    By following these guidelines, you can ensure that your gas springs are fitted correctly and operate safely and efficiently

    Gas Springs vs. Compression Springs

    Gas springs and compression springs are both used to store and release energy, but they operate on different principles and are suited to different types of applications.

    Compression springs are made of coiled metal and work by compressing and expanding the spring to store and release energy. They are typically used in applications where a simple up and down motion is required, such as in the suspension of a vehicle or in a door hinge.

    Gas springs, on the other hand, use compressed gas to provide a controlled lifting or supporting force. They are more versatile than compression springs and can be used in a wider range of applications. Gas springs are commonly used in situations where a smooth and controlled motion is required, such as in the opening and closing of a door or in the raising and lowering of a heavy object.

    One of the key differences between gas springs and compression springs is their ability to provide a variable force. Gas springs can be engineered to provide a specific force throughout their range of motion, while compression springs provide a constant force based on their compression or extension.

    Another difference is in the damping capabilities of the two types of springs. Gas springs can provide damping, meaning they can slow down the motion of an object, while compression springs do not have built-in damping capabilities.

    Gas Springs in New Zealand

    In New Zealand, gas springs are widely used in a variety of industries and applications. From automotive to industrial machinery, gas springs provide a simple and effective solution for lifting, supporting, and controlling motion.

    If you’re in need of gas springs in New Zealand, it’s important to choose a reliable supplier that offers high-quality products and expert guidance. Camloc is a leading provider of gas springs and gas spring systems in New Zealand, offering a wide range of products for various applications.

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