This patent-pending innovation delivers unmatched structural stiffness and energy absorption for bus body applications. Compared to S420 carbon steel, STALA Ultimate provides very higher stiffness and toughness in static and drop tower opening/closing test scenarios with significantly improved load transfer and bending resistance. Designed for maximum protection, it redefines safety and durability in lightweight stainless-steel structures.

Redefining Rollover Safety with Unmatched Stiffness and Energy Absorption

STALA Ultimate is a breakthrough solution for next-generation bus body frames where superior rollover protection and structural reliability are essential.

Test Type

Result

Static tests for opening scenario

up to 2.5x stiffer and 2.5x tougher

Static tests for closing scenario

up to 2.0x stiffer and 1.7x tougher

Drop tower tests (opening/closing)

up to 2x stiffer, 2.2x more load transfer, 1.9x higher bending resistance

These results confirm that STALA Ultimate ensures ultimate stiffness, superior energy absorption, and enhanced bending resistance under real-world conditions. Combining stainless steel strength with advanced design principles, it enables safer, lighter, and longer-lasting bus structures.

By combining Stala Ultimate with Stala Smart Solution products, you can enhance both load bearing and energy absorption capacity, while still contributing to a lightweight and cost-efficient design.

Ask us more

Jori Määttänen

Sales DirectorHollow sections & profiles, Transport IndustryStalatube Oy (Finland)

Emrah Dutkun

R&D ManagerStalatube Oy (Finland)

Technical support, Transport industry