Axles & Suspension Spring Sets Single Axle Kits

Spring Set Single Axle 1000kg Zinctech Inc ubolts & plates to suit 50mm axle

NZ $255.90 excl GST
SKU: 61052
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Description

This all-in-one kit includes 4-leaf slipper springs with Zinctech coating, precision-fit mounting hardware, and axle connection components for a secure, reliable setup.

Engineered to handle up to 1,000 kg GVM, this progressive trailer spring set features anti-rattle leaves to minimise noise and wear, and a longer second leaf for improved eye support. Pre-installed nylon bushes and robust bolts ensure a smoother installation and longer service life.

Key Features

  • Progressive spring compression for a more stable ride whether laden or unladen
  • Zinctech-coated trailer springs for superior corrosion resistance
  • Anti-rattle leaf design for quieter operation
  • Longer second leaf for improved spring durability
  • Bushes pre-installed for easy fitment
  • Includes U-bolts and axle plates for 50 mm square axles
  • Complete bolt-on solution for new builds or upgrades

Applications

  • Domestic and commercial trailers
  • Box trailers
  • Equipment and general-purpose trailers

Specifications

  • Trailer Spring Type: Eye-to-slipper
  • Number of Leaves: 4 per spring
  • Spring Width: 50 mm
  • Leaf Thickness: 6 mm
  • Load Rating: 1,000 kg per axle (pair)
  • Spring finish: Zinctech coating

Kit Inclusions

  • 60002 Springs Only 1,000 kg Zinctech 4 leaf (1 pair)
  • 60023 Galvanised U-Bolt 123L x 51W M12 suits 50 mm box (4 pieces)
  • 60016 Galvanised Axle Plate to suit 50 mm axle (1 pair)
  • 60014 Spring Hanger Bolt M16 x 95 mm (1 pair)
  • 60015 Spring Hanger Nut M16 Nyloc (1 pair)
  • 60013 Spring Hanger 16 mm eye suits 50 mm spring (1 pair)
  • 60012 Spring Slipper suits 50 mm spring (1 pair)

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

Questions?

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