Customer case

Meeting vehicle weight limits, exceeding customer expectations

June 22, 2022 6 min read

A sleek semitrailer tipper body with the Hardox® In My Body sign of quality.

Case details

Product Hardox 500 Tuf
Country Japan
Company Takahashi Body
Industry Trailers and body builders
Brand program Hardox® In My Body

Higher payload plus tougher vehicle weight limits is an equation that doesn’t seem to add up. But with Hardox® 500 Tuf, Takahashi could lightweight its trailer bodies and take more payload.

How to save weight with Hardox® 500 Tuf in tipper trailers

The Japanese truck and trailer body builder Takahashi Body has been relying on Hardox® wear plate for over two decades in semitrailer bodies and containers. So when SSAB launched Hardox® 500 Tuf, they were eager to see what a switch from Hardox® 450 to the new tougher steel could bring. Their goal? To increase load capacity by 100 kg (220.5 lbs.) for its semi-trailer tippers measuring 7,500 mm (24.6 ft.) long.
“When we calculated the weight of a semi-trailer tipper we could reduce the weight by as much as 130 kg (286.6 lbs.) by replacing 6 mm (0.236”) thick Hardox® 450 with 5 mm (0.197”) thick Hardox® 500 Tuf in the bottom plate. This allowed for more payload, which is a big benefit for the customer,” says Masataka Takahashi, sales director at the company.

In the end, higher hardness for longer service life in combination with a toughness equal to Hardox® 450 opened up for lighter products.

A semi-trailer tipper in Hardox® 500 Tuf steel made by Takahashi Body bodybuilders.

Takahashi Body’s new semi-trailer tipper in Hardox® 500 Tuf is 130 kg (309 lbs.) lighter than the previous design.

Case details

Product Hardox 500 Tuf
Country Japan
Company Takahashi Body
Industry Trailers and body builders
Brand program Hardox® In My Body

No design changes, and easy to cut, bend and weld

Takahashi Body uses the same design as with its dumper bodies in Hardox® 450. The company had no production issues when switching to Hardox® 500 Tuf. Cutting, bending and welding could be performed with the same workshop equipment and techniques as for Hardox® 450.

A white semi-trailer with body made in Hardox® 500 Tuf steel.

More upgrading, more recognition, more business

Takahashi Body plans to upgrade more of its dump trailer bodies and containers to Hardox® 500 Tuf. To improve the production process, the company is looking to invest in bending equipment capable of handling 12 m (39.4 ft.) long plates. This will reduce the need for welding and result in an even stronger product. 

“I feel that Hardox® 500 Tuf is a promising material for Japanese customers who need to follow stricter road regulations. With the higher hardness of Hardox® 500 Tuf, we can meet and even exceed our customers’ demands. Hardox® wear plate is a material that is highly recognized in Japan. And our membership in Hardox® In My Body really supports our reputation and sales. Customers can trust that we meet their expectations, which creates a very good relationship between us and our customers,”- Takahashi concludes.

Masataka Takahashi, sales director at Japanese Takahashi Body, proudly standing in front of a Hardox® In My Body certified tipper.
A strong yet lighweight green waste container made in Hardox® 500 Tuf steel.

When building the latest containers for transporting iron scrap, Takahashi Body replaced 6 mm (0.236”) Hardox® 450 with 5 mm (0.197”) Hardox® 500 Tuf. This reduction in thickness makes the steel plates used 17% lighter.


For more than 50 years, the Japanese company Takahashi Body has been designing and manufacturing truck bodies. Since 2000 it has been using Hardox® wear plate for its tipper bodies and containers. In 2010, the company became a qualified member of Hardox® In My Body, SSAB’s quality program for companies that use Hardox® wear plate in products that are designed and manufactured according to the strictest quality requirements.

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