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World’s Biggest Dump Truck BelAZ 75710 Made from Advanced High-Strength Steel

Steel News - Published on Tue, 21 Jan 2020

Image Source: worldsteel.org
Worldsteel wrote that the BelAZ 75710, Able to carry loads of 450 tonnes, is the biggest dump truck on the planet and is built on advanced high-strength steel. Running at USD 6 million a piece, these massive 360-tonne haulage vehicles are six times as powerful as an F1 racing car and are more than 20 metres in length. The BelAZ 75710 is 20.6m long, 8.16m-high and 9.87m-wide. Run by two 16 cylinder, four stroke diesel engines that each have 2,300 horsepower and produce electricity to power four electric motors, they can reach maximum speeds of 64kph. Moving massive payloads is a fuel intensive process, and diesel consumption for the 75710 is estimated at 1,300 litres per 100km but can be run on a single engine when not loaded to save on fuel.

The manufacturer BelAZ created this gigantic vehicle with the aim of increasing the efficiency of quarry and mine production. By designing a truck with a payload capacity that is 25% larger than conventional dump trucks, they were able to keep fuel consumption to a minimum, resulting in lower costs per load.

Around 70 per cent of a conventional dump truck’s payload sits on the rear axle, so to increase the carrying capacity this weight would have to be evenly distributed across the truck’s frame. To achieve this the 75710 has four tires at the front and at the rear, with a moveable axle system that allows for adjustments based on payload characteristics.

Due to the extreme physical requirements of a 450-tonne load, advanced high-strength steel was chosen for the production of the swivel carriage that forms part of the suspension system connecting the frame and axle. The steel used in the axle suspension system is SSAB’s Weldox 700F, allowing for reduced thickness while retaining the ability to handle huge loads. Weldox combines its extreme strength with high weldability, meaning the parts could be prefabricated by SSAB in Sweden and then assembled at BelAZ’s site in Belarus. The truck’s frame is formed of a welded structure of Hardox 450, another of SSAB’s high-strength steels, giving the body extreme resistance to abrasive wear, fatigue and impact damage.

Source :

Posted By : Rabi Wangkhem on Tue, 21 Jan 2020
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