ULTRAA-K® UTKNT 40K

Lightweight Tandem Slider Technology

ULTRAA-K Lightweight Tandem Slider Technology for Dry Van Reefer

Hendrickson introduces the latest in air slider technology with the ULTRAA-K® axle suspension system – the next generation VANTRAAX® air slider system for the van and refrigerated trailer markets. Building on proven VANTRAAX air slider design expertise, the ULTRAA-K system is engineered with an optimized strength-to-weight ratio making it stronger than comparable standard and heavy duty 40K slider models in the market today. It is the lightest slider system in the industry by nearly 100 pounds.

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

ULTRAA-K Lightweight Tandem Slider Technology for Dry Van Reefer

Features and Benefits

Improved Air Spring Supports

  • Increases strength and durability
  • Easier access to air spring mounting studs
 

Diagonal “K” Bracing

  • Prevents racking
  • Increases strength and slider life
 

Overlapping Frame Brackets

  • Stronger attachment
  • Improves durability and hanger life
 

Optimized Slider Rail

  • Optimized structural geometry
  • Stronger than VANTRAAX 40K HD model
  • Reduces weight
 

Hat-Section Cross Members and Gussets

  • More rigid design
  • Longer slider life
 

Height Control Valve Mounting

  • Ensures more accurate ride height settings
  • More secure location protects against road debris
 

Exclusive ZMD™ “Shockless” Ride Technology

  • Uniform damping levels over life of the trailer
  • Reduces overall suspension maintenance
  • Superior ride quality and driver comfort
  • Enhances cargo protection
  • Reduces risk of roadside tickets and CSA violations
 

Pivoting Mud Flap Brackets

  • Helps prevent mud flap damage
  • Reduces component maintenance
 

New SURELOK® System Design

  • Eliminates stop bolt
  • Less component wear

Specifications

Model Axle Spacing
(in.)
System Capacity
(lbs.)
Axle Rating (lbs.) Axle Dia.
(in.)
Box Width
(in.)
Ride Height
(in.)
Base
Model Weight
(lbs.)
ULTRAA-K 49 40K 20K LDA 48 16 1290

Literature

File Name Rev. Date Size

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