Axles & Suspension Spring Kits Leaf Springs

Springs Only (pr) 1750kg Zinctech 8 leaf

NZ $245.19 excl GST
SKU: 60005
Sorry, the selected product is currently out of stock. Sorry, there are only 14 of this item currently in stock. the selected product is not available.

Description

These 8-leaf, 1,750 kg-rated trailer springs are built for serious heavy-duty applications, offering superior load support and durability for trailers carrying substantial weight.

Made from high-tensile steel with 50 mm wide, 6 mm thick leaves, these progressive springs feature longer second leaves for added durability and anti-rattle leaves for a smoother, quieter operation. Each spring comes pre-fitted with hard-wearing nylon bushes and finished in a Zinctech coating for long-lasting protection against the elements.

Key Features

  • Rated for 1,750 kg per axle (pair)
  • 8-leaf construction for maximum strength and load stability
  • Longer second leaf reinforces spring structure and reduces stress on the main leaf
  • Progressive compression improves ride comfort and handling under varying loads
  • Built-in anti-rattle leaves for noise reduction and improved wear resistance
  • 50 mm wide, 6 mm thick high-tensile steel leaves
  • Zinctech coating for long-term corrosion protection
  • With pre-installed hard-wearing nylon bushes

Applications

  • Ideal for high-capacity single or tandem axle trailer builds and upgrades
  • Machinery and plant trailers
  • Construction and equipment hauliers
  • Agricultural transport
  • Commercial and fleet trailers
  • High-load tandem axle setups
  • Suitable for custom trailer manufacturing and replacements

Specifications

  • Trailer Spring Type: Eye-to-slipper leaf spring
  • Number of Leaves: 8 per spring
  • Width: 50 mm
  • Leaf Thickness: 6 mm
  • Bushes: Nylon bushes pre-installed
  • Load Capacity: 1,750 kg per pair
  • Spring finish: Zinctech anti-corrosion coating
  • Inclusions: One pair of springs

FAQs

Q: What is progressive spring compression?

A: Unlike linear springs that compress at a constant rate, a progressive spring features leaves designed to increase stiffness as they compress. This design allows the trailer spring to provide a smoother ride under light loads while offering greater support under heavier loads. As a result, it delivers better control across varying conditions and helps prevent excessive sag. This dual-rate behaviour allows your trailer to handle a wider range of load conditions without sacrificing control, ride quality, or safety. It also helps reduce wear on other suspension components and minimises the risk of bottoming out under heavy loads.

Q: What is Zinctech coating?

A: Zinctech is a specialised corrosion-resistant zinc coating applied to steel components. It offers strong protection against rust, extending the life of springs and hardware in outdoor environments.

Q: Why is the second leaf longer?

A: A longer second leaf supports the main leaf, reducing stress on the eye area and extending the trailer spring's service life.

Q: What are anti-rattle leaves?

A: Anti-rattle leaves are designed to minimise movement and noise in a leaf spring suspension system. At the slipper end, the spring leaves are spread out (or "fanned") rather than stacked tightly together. This creates a snug fit inside the slipper, which helps reduce rattling, wear, and vibration during towing.

Q: Can I get axles with this kit?

Yes. You can add ready-made axles or custom fabricated axles to your order.

To get axles made to your specifications, please visit: https://www.treadway.co.nz/Resources/Axle-Fabrication.html

Q: Does this kit include mounting hardware?

A: This listing includes one pair of springs only. Mounting components like bolts, hangers, and slippers are sold separately, but spring sets with mounting components are also available here at Treadway.

Visit this page for spring sets with different load ratings: https://www.treadway.co.nz/shop/components/Trailer+Suspension.html?range=0-24

For individual accessories: https://www.treadway.co.nz/shop/trailer-accessories.html

Specifications

Brand: Treadway
Load Rating: 1750kg
Type/Finish: Zinctech
Width: 50mm

Questions?

In order to assist us in reducing spam, please type the characters you see:

You might also be interested in ...