Description

This 3,000 kg trailer spring set is a high-performance suspension solution for medium to heavy-duty tandem axle trailers. The 6-leaf Zinctech-coated springs feature progressive spring compression that adjusts to variable loads, while the anti-rattle leaves and longer second leaves provide enhanced ride quality and durability. This kit comes with pre-installed nylon bushes and all the components needed for an efficient installation.

Key Features

  • Heavy-duty 6-leaf Zinctech-coated springs resist rust and corrosion
  • Anti-rattle spring design helps minimise noise and extend spring life
  • Anti-rattle slippers fit snugly around the springs to further reduce movement and wear
  • Progressive spring compression enhances comfort under light loads and support under heavy loads
  • Springs are constructed with 50 mm wide and 6 mm thick leaves, with extended second leaves that curl around the eye area for strength and reliability
  • With easy-align hangers and anti-slip bolt lugs for quicker and easier rocker installation
  • Includes all essential hardware to complete installation

Applications

  • Tandem axle trailers up to 3,000 kg
  • Equipment transport trailers
  • Agricultural, trade, and commercial trailers
  • General-purpose haulage

Specifications

  • Load capacity: 1,500 kg per pair (3,000 kg total)
  • Trailer spring type: 6-leaf slipper springs
  • Spring width: 50 mm
  • Leaf thickness: 6 mm
  • Spring finish: Zinctech anti-corrosion coating

Kit Inclusions

  • 60004 Springs Only1500kg Zinctech 6 Leaf (2 pairs)
  • 60007 Tandem Rocker Arm Hanger (2 pieces)
  • 60006 Tandem Rocker Arm Eye/Slipper Type (2 pieces)
  • 60014 Spring Hanger Bolt M16 x 95mm (4 pieces)
  • 60015 Spring Hanger Nut M16 Nyloc (4 pieces)
  • 60008 Tandem Rocker Arm Centre Bolt M20 x 195mm (2 pieces)
  • 60009 Tandem Rocker Arm Centre Nut M20 Nyloc (2 pieces)
  • 60011 Tandem Rocker Arm Slipper Nut M10 Nyloc (2 pieces)
  • 60010 Tandem Rocker Arm Slipper Bolt M10 (2 pieces)
  • 60013 Spring Hanger 16mm eye suits 50mm Spring (2 pieces)
  • 60012 Spring Slipper suits 50mm Spring (2 pieces)

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

Specifications

Brand: Treadway
Load Rating: 3000kg
Type/Finish: Zinctech
Width: 50mm

Questions?

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