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Reliable excavators

Construction equipment by Doosan

Testing the excavator of tomorrow

Trials by global construction equipment giant Doosan in the mountains of South Korea’s South Chungcheong province are aimed at producing a reliable excavator that meets the toughest emissions standards. Scania is playing a key role.

When you’re in the quarrying business, you need heavy machinery that you can depend on. With environmental regulations around the world rapidly becoming tougher, you also need equipment that meets the latest emissions standards.

Bochang Industries’ Scania 13-litre Tier 4 Final powered Doosan DX530LC-5 large excavator easily shifts around 250,000 tonnes daily with the 380 hp (283 kW) engine returning to its 1800 r/min in less than a second under load.

The process of developing just such equipment is now underway in South Korea, where industrial and construction equipment company Doosan is working with Scania and local company Bochang Industries.

In the mountains surrounding the South Korean coastal city of Boryeong-si in South Chungcheong province, the three companies are testing the DX530LC-5, a powerful large excavator featuring a Scania 13-litre Tier 4 final engine. The excavator aims to marry functional engine design and low emissions output to produce a piece of heavy machinery capable of turning rocks into gravel.

Testing ground for Scania Doosan cooperation

Bochang Industries excavates rock that is then crushed into gravel for construction use. It has excavated a long string of hillsides around Boryeong since 1992.

Bochang’s quarry has been a testing ground for Doosan products since 2004. With Doosan and Scania signing an agreement in 2014 to produce Tier 4 final engines for Doosan Large Excavators intended for Europe and North America.

The testing process involves a prototype being put to work, and Scania and Doosan working together with Bochang to rectify any unforeseen problems. So far, the prototype has clocked up 500 hours of operating time.

Scania’s Engineering Project Director in Korea, Ian Hooper, says, the new excavator incorporates significantly higher levels of technology to control emission levels.

Quiet and responsive

Lee Young Woo, an excavator driver with 25 years’ experience, has been testing the Scania-powered excavator and says it is quiet and responsive. “The dynamic characteristics are better than other machines,” he says. “The noise level is lower and the engine response is better. With more engine space, it’s easy to maintain and the ergonomics of the pedals are more functional.

With increased power, Woo easily shifts around 250,000 tonnes daily, with the 380 hp (283 kW) engine returning to its 1,800 r/min in less than a second under load. “This machine lets me utilise all its engine power,” says Woo.

Long relationship with Scania

Having a Scania engine in the quarry is no new experience for Bochang Industries. The company uses a wide array of Scania-powered equipment in its day-to-day operation.

ochang’s manager, Juhun Kwon, began driving Scania trucks. This experience “highlighted the performance and reliability of Scania engines,” he says.

Its relationship with Scania began in 1995 when Bochang’s manager, Juhun Kwon, began driving Scania trucks. He says the experience highlighted the performance and reliability of Scania engines.

“Excellent fuel consumption, durability, and reliability of the engine are the key factors in our choosing Scania engines,” Kwon says. “Importantly, we have access to many service dealers, including Doosan and Scania, and it’s easy to get parts.”