Mobile and crawler cranes

7 minutes - magazine 01 | 2025

Full speed ahead across the world’s oceans

Heavy fuel oil is a thing of the past – today, liquefied natural gas is the fuel of choice. With eight LNG hybrid ships currently in its fleet, the Japanese shipping company Nippon Yusen Kabushiki Kaisha – better known as NYK Line – was one of the first companies in the shipping industry to adopt this approach, and continues to champion it.

All of NYK Line’s new ship series – 20 “Pure Car and Truck Carriers” are planned by 2028 – will be fuelled by LNG. With the goal of meeting its customers’ demands for more environmentally friendly logistics, NYK, a long-standing Liebherr partner, offers its customers the greenest possible transport chain.

Welcome on Board: In addition to a tour of the ship, a small Liebherr delegation had the opportunity to observe the loading of both crawler cranes in Bremerhaven in July last year.

“We had revised the delivery schedule for our LR 1700-1.0 at short notice,” recalls dispatch employee Anja Rupp. “Together with an LR 12500-1.0, bound for Denzai Engineering Ltd Co, the 700-tonne crane needed to be shipped to South Korea in July.” No sooner said than done! The shipment was planned together with Matthias Auch, a project manager at NYK Line’s German office in Hamburg, where long-distance freight and transport planning is all in a day’s work.

NYK’s RoRo fleet consists of 122 ships. It is a well-established young fleet, with eight brand new vessels all running on liquid natural gas (LNG). “Whether in the crane industry or shipping – we’re also future-proofing our range of services. With our LNG hybrid ships, we now have the world’s greenest freighters in our fleet, based on the latest engineering standards,” reports Matthias Auch. It was on one of these vessels – the “Sumire Leader”, or “Violet Leader” in English – that the two crawler cranes were transported to their destinations.

Piece by piece: The LR 12500-1.0 and the LR 1700-1.0 were loaded onto the Sumire Leader as 211 individual packages. In the picture: a lattice boom section of the LR 12500-1.0.

Big barges for big cranes

“LNG-powered ships have a major advantage: thanks to their higher load-bearing capacity, they are designed to transport the latest generation of vehicles – namely electric vehicles, which are significantly heavier than those with conventional combustion engines,” explains Matthias Auch. The Sumire Leader was the ideal choice for transporting the LR 12500-1.0, an exceptionally large and heavy crawler crane, along with a 700-tonne crane, across the ocean. “Even when we ship Liebherr cranes to Freeport in the USA, we often use the LNG freighters in our fleet. This simplifies transport significantly, as the overall weight of the cargo is already extremely high due to the cranes alone.” When the project manager started working at NYK Line around 15 years ago, the company only shipped one Liebherr lattice boom crane per year. Over time, the numbers grew: in 2024, 45 crawler cranes were shipped from Ehingen and Nenzing alone – not including mobile cranes.

Matthias Auch, Project manager at NYK Line

To California on a single tank of LNG

Before the LR 1700-1.0 reached its buyer, Hanchang Heavy Equipment Co. – one of South Korea’s largest crane companies – and completed its first lift at the Taebaek Changjuk wind farm east of Seoul, it spent approximately six weeks in transit aboard the Sumire Leader. During this time, the ship made stops at various ports; before arriving in Bremerhaven, it refuelled in Zeebrugge, Belgium. This single LNG refill allowed the vessel to travel as far as the west coast of the United States. “The route is largely determined by two factors: firstly, the automotive industry, which accounts for the majority of our cargo. The second is the infrastructure – there are currently only a few suitable ports where we can refuel with LNG,” explains Matthias Auch. In addition to Zeebrugge and Port Hueneme in California, these are Singapore and two ports on the Japanese mainland.

After the stop in the United States, the Sumire Leader sailed directly to South Korea. In Masan, the LR 1700-1.0 and the LR 12500-1.0 were unloaded – right on schedule! The next leg of the freighter’s voyage then began without delay: it was loaded with new vehicles in China and Japan before heading back to Europe.

Whether in the crane industry or shipping: at NYK, we’re also future-proofing our range of services. By 2028, 20 ships in our fleet will be powered by LNG.

Matthias Auch, Project manager at NYK Line

A logistical powerhouse

By the time the RoRo vessel finished circumnavigating the globe, Matthias Auch and his team had already drawn up the schedules for the next crane shipments. “When we’re dealing with smaller lattice boom cranes or most of the LTM fleet, the transport can be arranged on any of our 122 ships. But with true giants like the LR 12500-1.0 or an LR 13000, an entirely different level of time management is required,” he explains. In these cases, the Tokyo headquarters coordinates what’s possible, which ship is available and when it will arrive in Europe. We’re looking at a time frame of nearly twelve weeks. “These cranes aren’t just big and heavy, they’re a whole different ball game in terms of logistics. We have to carefully plan when the crane will be “lift-ready” at the customer’s site,” he explains. And Anja Rupp adds: “So the planning also requires close coordination between Liebherr and NYK. After all, we want to ensure the customer receives their crane exactly as scheduled.”

From sea level to the mountains: The LR 1700-1.0 completed its first job in the province of Gangwon-do, east of Seoul. The crawler crane was used to erect wind turbines in this mountainous region.

The many years of trustful co-operation between Liebherr and NYK Line speak for themselves. “Beyond this, both companies share the goal of promoting new technologies for our customers and partners to enable a greener future for generations to come,” says Matthias Auch. For the past two and a half years, all of the shipping companyʼs new-build series have been LNG ships. “This puts us on the right path for the next ten to twenty years. There’s also ongoing research into ammonia as a potential fuel, which could be even more environmentally friendly. We’ll see what the future holds.”

LNG:

Global maritime freight traffic is steadily increasing – the global merchant fleet currently consists of around 93,000 ships, transporting over nine billion tonnes of goods every year. However, this growth also contributes to increasing greenhouse gas and pollutant emissions. The environmental advantage of LNG is clear: using gas as a maritime fuel reduces nitrogen oxides by up to 85 per cent and generates 20 per cent less CO₂ than marine diesel. Particulate matter emissions are also reduced by around 95 per cent.

Sumire Leader

  • Year of construction: 2023
  • In service since August 2023
  • Total length: 199.99 metres
  • Width: 38 metres
  • Height: 46 metres
  • Permitted load: 7,000 units
  • Flag: Liberia

This article was published in the UpLoad magazine 01 | 2025.

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