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Strenx for trailers Strenx RUPD
RUPD

STRENX® 960 FOR STRONGER AND SAFER REAR UNDERRUN PROTECTION DEVICES

When quality matters, turning to Strenx® 960 high-strength steel for protection in your heavy-duty vehicles is a good choice. It is ideal in applications like rear underrun protection devices (RUPD), which help lower the risk of fatal injuries in rear-end collisions involving heavy-duty vehicles.

An insufficiently strong RUPD can’t prevent severe damage to a car’s passenger compartment, reducing the survival space for its occupants.

Statistics show that the number of serious or fatal injuries is increasing. To reverse this trend, new regulations from the UN’s Economic Commission for Europe (ECE) are being implemented during 2019–2021 that will oblige truck and trailer manufacturers to roughly double the necessary load-carrying capacity of RUPDs.

The right design using Strenx® 960, which complies with ECE regulations, delivers a better strength-to-weight ratio compared to aluminum.

WEAK

rear underrun protection
RISKS damage in car-to-truck crashes.

full crash

STRONG

rear underrun protection
PREVENTS damage in car-to-truck crashes.
RUPD half crash

HIGHER LOAD CARRYING CAPACITY REQUIRES STRONGER MATERIAL

RUPD cross beam

Standard requirements:

  • The minimum height of the cross-beam should be at least 120 mm.
  • RUPD should sustain:
  1. 100 kN at a point located 300 ±25 mm from the longitudinal plans tangential to the outer edges of the wheels.
  2. 100 kN at a point located at the middle of cross-beam.
  3. 180 kN at a point located 350-500 mm from middle of cross-beam.
  • Maximum deformation, including elastic and plastic deformation, is also specified by the standard and depends on the vehicle type and RUPD installation position.

 

The above points are simplified explanations of the standard requirements. Please refer to the standard for exact details.

Partner in design

SSAB offers cooperation when designing an RUPD. The performance of an RUPD depends on parameters such as material choice, shape and thickness of different parts, distance between supports, and design of connections between different parts.

The combination of different parameters leads to many different designs. An engineering study is necessary to evaluate them to find the one that satisfies cost and performance requirements. SSAB actively cooperates with customers at almost all engineering levels to design an optimal RUPD.

In addition to Strenx® 960 Tubes, sheets and plates for RUPD, SSAB also offer tube sawing and tube laser cutting for more complex shapes as well as cutting and press brake bending for different types of support structures for an RUPD.

BENEFITS OF STRENX® 960

DISCOVER THE POWER OF STRENX® FOR YOUR TRAILERS

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