Mantella trailer chassis design in Strenx® 960 Plus steel breaks new ground
May 19, 2021 6 min read
Mantella, the Italian trailer manufacturer, recently redesigned its Stratosphere tipper trailer with Strenx® 960 Plus. The company implemented major advances in body and chassis design in the use of high-strength steels from SSAB. As a result, it revolutionized the design of its innovative Stratosphere tipper trailer and saw the benefits skyrocket.
Body and chassis designed to weigh half a ton less
“Our mission is to reduce vehicles’ tare and increase their capacity, thus lowering fuel consumption and contributing to a more sustainable world. In this sense, we have achieved very interesting results, especially thanks to the technical support that SSAB has always provided. We’ve been able to improve design by optimizing all the benefits obtainable from Strenx® 960 Plus,” says Gregorio Mantella, Plant Director at Mantella.
The trailer chassis, made in Strenx® 960 Plus, is 145 kg (320 lbs.) lighter. And the combined weight reduction of using Hardox® 500 Tuf in the body and Strenx® 960 Plus in the chassis is 510 kg (1,124 lbs.) compared to the previous design. All in all, this translates to an increased payload of 510 kg (1,124 lbs.) on every trip for Mantella’s customers.
New chassis design = higher productivity and performance
Mantella challenged conventions when it decided to produce the longitudinal beams of its tipper trailer chassis by advanced bending of a single flat strip of Strenx® 960 Plus. Instead of making a traditional I-beam by welding flanges and web together, the company used press bending to produce a Z-shaped form without welding.
With the new trailer chassis design, the Stratosphere series weighs in on par with aluminium and possesses all the durability, fatigue strength and production advantages of steel. The Z-beams take about 50% less time to produce compared to welded I-beams. In addition, lateral stiffness is increased by 10% and torsional stiffness by 12%.
In fact, the Z-beams were designed by Mantella engineers together with SSAB’s technical development manager. This type of collaboration is one of the benefits customers like Mantella gain from being a qualified My Inner Strenx® member.