SP4 - 4" Single Point

Robust spring suspension for on- and off-highway trailer applications

Our SP4 suspensions are designed to perform on- and off-highway in the most demanding applications. Its proven durability and performance make it ideal for dump, logging, refuse, port operations, agricultural, and heavy load trailer applications.

Features and Benefits

SPRING-TRAC ™ alignment system
Straddle mount or trunnion mount
Custom trunnion lengths available
Available as suspension kit or as an assembly with axles
Custom axle tracks available
Applications: End Dump, Side Dump, Belly Dump,
Logger, Container Chassis and more
Capacity: 50,000 lbs. Parabolic / 50,000 – 70,000 lbs. Multi-Leaf

Specifications

Available Models:

Trunnion Mount or Straddle Mount
Overslung or Underslung

Spring Capacities:

- Parabolic: 50,000 lbs. – 4 leaf

- Multi-Leaf: 50,000 lbs. – 7 leaf

60,000 lbs. - 8 leaf

70,000 lbs. – 9 leaf

Common Applications: End Dump, Side Dump, Belly Dump,
Logger, Container Chassis and more