Gas Strut Buyers Guide: Which Gas Strut Should I Order? How to Buy the Right Gas Strut
Gas struts are ubiquitous, providing smooth, controlled movement in countless applications, from car boots to kitchen cabinets. However, choosing the right gas strut can be surprisingly complex. This guide will help you navigate the selection process, ensuring you get the perfect strut for your needs.
What Are Gas Struts?
Gas struts, also known as gas springs or gas dampers, are mechanical devices that use compressed gas (typically nitrogen) to provide a controlled force. This force allows for smooth, assisted opening and closing of various components. Unlike traditional springs, gas struts offer consistent force throughout their stroke, preventing sudden jolts or uncontrolled movement. They're ideal for applications requiring a controlled lifting, lowering, or damping action.
The Selection Process: Key Considerations
Choosing the correct gas strut involves considering several crucial factors:
Force (Newtons):
This is the most critical specification. The force rating (measured in Newtons) indicates the amount of weight the strut can lift or support. An insufficiently rated strut will struggle to open the component, while an over-rated strut might slam shut or be difficult to control manually. To determine the correct force, you need to know the weight of the component being lifted and the desired opening angle. For example, a heavy hatch will require a higher Newton rating than a lightweight door.
Stroke Length:
This is the distance the strut extends from its fully compressed to its fully extended position. The stroke length must be sufficient to allow the component to open fully. Measuring the distance the component needs to travel is crucial to selecting the appropriate stroke length. A strut with too short a stroke will not open the component fully, while one with too long a stroke might be unnecessarily large and potentially unstable.
Body Length:
This is the overall length of the gas strut when fully compressed. The body length is important for determining the space available for installation. A strut that's too long won't fit, while one that's too short might not provide enough extension. Accurate measurement of the available space is essential.
Rod Diameter:
The diameter of the piston rod affects the strut's strength and durability. Larger diameter rods generally offer greater strength and are suitable for heavier applications. The rod diameter should be compatible with the mounting hardware.
Mounting Style:
Gas struts come with various mounting styles, including eye-to-eye, clevis-to-eye, stud-to-eye, and more. Ensure the mounting style is compatible with the component and the available mounting points. Incorrect mounting can lead to instability and premature failure.
Material:
Gas struts are available in various materials, such as steel, stainless steel, and aluminum. Steel is the most common and cost-effective option, while stainless steel offers superior corrosion resistance for outdoor or harsh environments. Aluminum struts are lightweight but might not be as strong as steel.
Operating Temperature:
The operating temperature range of the gas strut should be suitable for the intended environment. Extreme temperatures can affect the performance and lifespan of the strut.
Application:
The intended application influences the choice of strut. For example, a strut for a car boot will have different requirements than one for a piece of machinery. Consider factors like shock absorption, speed of operation, and the frequency of use.
Narrowing Down the Right Strut: A Step-by-Step Guide
- Measure Your Existing Strut (if applicable): If you're replacing a broken strut, carefully measure the force (often printed on the strut itself), stroke length, body length, and rod diameter. Note the mounting style. This provides a starting point for your search.
- Determine the Weight and Movement Requirements: Accurately weigh the component you need to lift. Measure the distance the component needs to move to open fully. Consider the desired opening speed and whether you need shock absorption.
- Use Online Calculators and Resources: Many manufacturers provide online calculators to help determine the appropriate force and stroke length based on your measurements. These tools can simplify the selection process.
- Consult with a Specialist: If you're unsure about which strut to choose, consult with a gas strut specialist. They can provide expert advice based on your specific application and help you select the most suitable product.
Types of Gas Struts:
- Fixed Force: These struts provide a constant force throughout their stroke. They are the most common type and are suitable for most applications.
- Adjustable Force: These struts allow you to adjust the force output, providing greater flexibility for fine-tuning the movement. They are ideal for applications where the weight or force requirements may vary.
- Stainless Steel Struts: Constructed from stainless steel, these struts offer superior corrosion resistance and are suitable for harsh environments, such as marine or medical applications.
The Benefits of Choosing a Reputable Supplier:
Choosing a reputable supplier ensures you receive high-quality gas struts that meet the required specifications and are backed by a warranty. A reputable supplier will also offer expert advice and support to help you choose the right product for your application.
Common Applications of Gas Struts:
- Automotive: Boot lids, bonnets, sunroofs, seats
- Industrial Machinery: Access panels, hatches, doors
- Furniture: Beds, tables, chairs
- Marine: Hatches, doors, windows
- Agricultural Equipment: Access panels, doors, hoods
- Medical Equipment: Access panels, trays, lids
- Commercial Vehicles: Access doors, tailgates
- Household Appliances: Lids, doors
Free Gas Strut Design Service:
For complex or unusual applications, a free gas strut design service can be invaluable. A specialist can work with you to design a custom gas strut to meet your exact requirements, ensuring optimal performance and reliability.
Conclusion:
Selecting the correct gas strut involves careful consideration of several factors. By following the steps outlined in this guide and consulting with a specialist if necessary, you can ensure you choose the right gas strut for your application, guaranteeing smooth, reliable, and controlled movement. Remember to always prioritize safety and ensure correct installation to maximize the lifespan and performance of your gas struts.
Gas Strut Free Design Service Shop UK Gas Struts