Description

Engineered for trailers with a gross axle mass of up to 1,500 kg, the Zinctech-coated trailer springs incorporate progressive spring compression, anti-rattle design, and a longer second leaf for greater strength and load support around the eye. This complete kit includes mounting hardware and axle connection components for a straightforward fitment - ideal for new builds or replacing worn-out trailer spring systems.

Key Features

  • 6-leaf Zinctech-coated springs for long-lasting durability
  • Anti-rattle leaves reduce vibration and wear
  • Progressive spring compression improves load handling
  • Longer second leaf for increased durability around the eye area
  • Includes all required hardware for 50 mm axle fitment
  • Pre-installed nylon bushes for easy installation

Applications

  • Heavy-duty domestic trailers
  • Commercial and equipment trailers
  • Agricultural and rural transport trailers

Specifications

  • Load Rating: 1,500 kg gross axle mass (pair)
  • Trailer Spring Type: Eye-to-slipper
  • Number of Leaves: 6 per spring
  • Spring Width: 50 mm
  • Leaf Thickness: 6 mm
  • Spring finish: Zinctech coating
  • Bushes: Nylon, pre-installed

Kit Inclusions

  • 60004 Springs Only 1,500 kg Zinctech 6 Leaf (1 pair)
  • 60024 Galvanised U-Bolt 133L x 51W M12 suits 50 mm box axle (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

What is progressive spring compression?

Unlike linear springs that compress at a constant rate, a progressive spring features leaves designed to increase stiffness as they compress. This allows for a smoother ride under light loads and greater support under heavier loads, improving trailer control and reducing component wear.

What is Zinctech coating?

Zinctech is a corrosion-resistant zinc coating applied to steel parts to extend life and reduce rust, especially useful in coastal or wet conditions.

Why is the second leaf longer?

A longer second leaf helps support the main leaf and reduces stress around the eye area, increasing durability and spring life.

What are anti-rattle leaves?

Anti-rattle leaves reduce movement and noise. They're fanned at the slipper end to fit snugly in the hanger, minimising vibration and wear while towing.

Can I get axles with this kit?

Yes. We offer both ready-made and custom-fabricated axles. Visit Axle Fabrication for more information.

What's included in the 1,500 kg spring kit?

Two 6-leaf trailer springs, pre-fitted nylon bushes, U-bolts, spring plates, and galvanised hangers—everything needed for single axle suspension setup.

Is this suitable for a tandem axle trailer?

No. Our tandem axle spring kits include additional mounting hardware and hangers that are essential for safe operation. We recommend choosing a tandem spring kit if your trailer has dual axles.

Specifications

Width: 50mm
Length: 106 eye to end
Load Rating: 1500kg
Fixing: U-bolts (50mm)
Material: Steel
Brand: Treadway
Type/Finish: Zinctech

Questions?

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