Custom Double Eye Leaf Spring Series 4 (7×50×710 7-Leaf Pack)
World's first dual-certified (DOT 1093 + ADR62/03) single axle system. Modular design (3-7 leaves adjustable) adapts 750-3000KG loads. ZnAl coating + PU protection layer for North American winter & Australian outback.
World's first dual-certified (DOT 1093 + ADR62/03) single axle system. Modular design (3-7 leaves adjustable) adapts 750-3000KG loads. ZnAl coating + PU protection layer for North American winter & Australian outback.
Dual-Standard Specifications
| Parameter | Spec | US Standard | AU Standard |
| Base Thickness | 7mm | 7.5mm±0.3 | 6.8-7.2mm |
| Coating System | 55μm ZnAl+PU | ASTM A123 | AS 4534 |
| Temp Range | -22°F~140°F | DOT Winter | ADR Summer |
Cross-Market Solutions
US Configurations:
✓ 5-Leaf: 3300lbs RV park towing (RVIA compliant)
✓ 7-Leaf: 6600lbs farm equipment hauling
AU Configurations:
✓ 4-Leaf: 2200lbs outback caravans
✓ 6-Leaf: 5500lbs mining logistics
Global FAQ
How to meet both standards in one product?
ZnAl coating (anti-icing) + PU elastomer layer (anti-red dirt) passed -30°C/140°F cyclic tests.
Our Dynamic Stress Distribution Technology auto-adjusts inter-leaf pressure to satisfy DOT & ADR simultaneously.
Climate adaptation mechanism?
ZnAl coating (anti-icing) + PU elastomer layer (anti-red dirt) passed -30°C/140°F cyclic tests.
