Boynes Springs is a trusted extension spring manufacturer in Perth, producing custom springs for various applications and industries. With over 50 years of expertise, we specialise in crafting high-quality extension springs designed to withstand demanding environments and provide consistent performance.

What Are Extension Springs?

Extension springs are tightly coiled springs engineered to resist stretching forces. Unlike compression springs, which work under a compressive load, extension springs operate by extending to hold components together. These springs feature hooks, loops, or other forms of attachment at both ends to connect the spring to various mechanisms.

Applications of extension springs include:

• Trampolines: Providing the bounce by stretching and retracting between the mat and frame.
• Garage doors: Assisting in smooth and balanced opening and closing.
• Farm machinery: Managing operational tension for heavy-duty tasks.
• Levers and toys: Ensuring tension and controlled movement.
• Industrial equipment: Securing components under tension.

Customised Extension Springs

At Boynes Springs, we manufacture custom extension springs to your exact specifications. Whether you need a single prototype or a bulk order, our team ensures precision and durability.

Key Features of Our Extension Springs:

• Wire Sizes: From 0.25mm to 26mm in spring steel and up to 13mm in stainless steel, catering to diverse requirements.
• Materials: Premium stainless steel and spring steel for maximum durability and corrosion resistance.
• End Configurations: Choose from hooks, loops, or specialised attachments tailored to your application.

Why Choose Boynes Springs for Extension Springs?

As a leading extension spring manufacturer and supplier, we combine state-of-the-art technology and experienced craftsmanship to produce springs that meet the highest standards.

Our advantages include:

• ISO-quality manufacturing standards ensure consistent quality.
• Fast turnaround times to minimise downtime.
• Expertise in producing springs for industrial, commercial, and domestic use.

Extension Spring Variations

We manufacture a range of extension spring types, including:

• Small extension springs: Designed for compact, precision-based applications.
• Heavy-duty extension springs: Engineered for industrial use.
• Drawbar extension springs: Ideal for added strength and durability.
• Custom extension springs: Made to match your exact dimensions and tension requirements.

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As the leading drawbar spring manufacturer in Australia, our springs are designed to handle heavy loads while preventing overstretching. They consist of a main compression spring with drawbars (long steel loops) passing through its center and hooking around the opposite end. When a load is applied, the main spring compresses as the drawbars extend, allowing the assembly to withstand loads exceeding the spring’s normal capacity.

Key Features of Drawbar Springs:

• Overload Protection: The design ensures that even if the spring reaches its maximum compression, the drawbars provide a positive stop, preventing damage from overstretching.
• Durability: Constructed from robust materials like stainless steel, drawbar springs offer high tensile strength and resistance to corrosion, making them suitable for various environments.
• Versatility: Commonly used in applications such as mooring boats, drawbar springs are also referred to as boat springs due to their prevalent use in marine settings.

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