Extreme Duty System

INTRAAX Extreme Duty 30K

To meet the grueling demands of logging, forestry, mining and construction operations, Hendrickson designed the INTRAAX® Extreme-Duty (ED) system. Available in both top-mount and low ride height/liftable models, this INTRAAX system delivers the first integrated 30,000-lb. structural-and-axle-capacity system for severe-duty and heavy-hauling operations.

Rugged features of the INTRAAX Extreme-Duty system include low-pressure air springs with steel pistons and full bottom plate coverage; high-damping, extended-service shock absorbers; newly-designed, heavy-duty TRI-FUNCTIONAL® Bushings, and a 30,000-pound capacity axle. Heavy-duty options include rear-mount shock absorbers and chain down-stops for maximum suspension damping and control. Approved for loggers, chip vans, dumps, tankers, straight- and drop-deck platforms and specialty trailers.

Hendrickson recommends reviewing our application guide when choosing the suspension that best meets your needs.  
 L707 Application Guide

INTRAAX Extreme Duty 30K

Features and Benefits

  • Available in a suspension capacity of 30,000 lbs. per axle
  • Ride heights range from 14 to 19 inches for the top mount (AAEDT 30K) and from 9 to 17 inches for the low ride height/liftable (AAEDL 30K)

Low Maintenance and Convenience Save Time and Money

  • Maintenance requirements minimized
  • Simple, functional design with fewer parts — that means fewer parts to wear out
  • QUIK-ALIGN® — fast and easy axle realignment requires no welding or special tools
  • TRI-FUNCTIONAL® Bushings — proven technology for mile after mile of trouble-free service
  • Single source for comprehensive technical support, training and warranty

Performance Plus

  • Low spring rates deliver superb ride quality
  • Rigid trailing arm, solid axle connection proven to be the most stable design
  • TRI-FUNCTIONAL Bushings optimize ride softness and control
  • Large bore shocks with greater fluid volume, premium seals and bonded bushings for extended life
  • High-capacity air springs with low-operating pressures for rapid air-up
  • Quality-controlled assembly, including ABS sensor testing

Responsive and Consistent Stopping Power

  • Industry's only standard Cam Tube System enhances S-cam alignment and extends life
  • 10-in. S-cam eliminates windup and reduces bushing wear
  • Up to a half inch less stroke required
  • Provides more braking reserve and increases safety — without the cost of long-stroke chambers
  • Lower air consumption, critical for ABS performance
  • Faster application and release cycles
  • Heat treated components for greater durability

Superior Axle Design

  • Neutral-toe axle improves mileage and tire life
  • Advanced axle wrap and window weld for optimal structural integrity
  • Brake hardware welded to trailing arms rather than axle, minimizing axle stress
  • Spindle and spider mounting surfaces machined after friction welding to ensure precise brake geometry and wheel positioning for maximum brake life and efficiency
  • Wall thickness to match application demands

Worry-Free Integrated Systems From a Single Source

  • 10-year/1,000,000-mile warranty on axle/beam connection
  • 5-year/500,000-mile structural warranty
  • Supported by OEMs, dealers and designated distributors nationwide
  • Backed by Hendrickson's outstanding technical support staff
  • Damaged axles can be quickly replaced, with no grinding or welding
  • Off-the-shelf replacement parts


New Model Reference
Old Model Reference
Capacity (LBS.)
Axle Rating1(LBS.) Ride Height2 (IN.) Base Model Weight
AAEDT 30K AA300EDT 30K 30K 14, 15, 16, 17 682
AAEDL 30K AA300EDL 30K 30K 9, 12, 14, 15, 16, 17, 19 662

1. Axle structure rating only. Brakes, wheels and tires rated separately.

2. Suspension ride heights must be set within Hendrickson specifications in order to provide load equalization among axles and to ensure proper suspension performance. Failure to maintain proper ride height settings can lead to suspension, axle or trailer damage.


File Name Rev. Date Size

Need Help? Call 1-855-RIDE-RED or Contact Us