Mantsinen has launched its ‘Dualpower’ cranes, which combine electric motors and a diesel engine utilising twin engine technology.
The first customer for a Dualpower materials handler is Engbergs, which operates at Östrand pulp close to Sundsvall port on the Swedish East Coast. It recently acquired a regular diesel Mantsinen 120R crawler-mounted crane and a second 120R fitted with Dualpower.
Engbergs has been a Mantsinen customer for more than 20 years. The company mostly handles imports of roundwood and woodchips and recently started bark handling.
“Mantsinen Dualpower combines the best features of electric motors and diesel engine, resulting in a union of mobility, productivity and advanced environmental friendliness,” stated Mantsinen.
Regular mobile harbour cranes are frequently now provided with electric drives and cable reel management systems so they can save use of the diesel generator set or diesel hydraulic drive when they can plug into shore power. Mantsinen is saying that this has not been done before with hydraulic boom/jib cranes.
Kjell Arne Engberg, CEO of Engbergs, said: “I am very open to development of new technology. We purchased one diesel Mantsinen 120 and one Mantsinen 120 with Dualpower. The reason for the machine renewal was that the pulp mill decided to increase production by 100% and we needed to solve the logistics accordingly.
“In all our investments, we look to the possibility of reducing carbon emissions. We wanted this solution because it combines two benefits: when you reduce emissions, you also reduce costs. It is a win-win situation.
“However, we still needed a diesel driven machine, too, because we could not access electrical power all around the pulp mill area. The pulp mill was luckily very interested in helping us build the power grid solution.”
According to Mantsinen, one of the benefits of the Dualpower is easy maintenance. The technology is based on standard components, allowing easy service and normal spare parts availability. Pairing this technology with the Mantsinen Insight remote monitoring system allows smooth operation and less unexpected surprises.
“The materials handler works well, and it has reduced the need for maintenance,” said Kjell Arne Engberg. “I believe that the maintenance in these kinds of machines will be more and more remote. Mantsinen Insight lets the machine tell you if something is not right. In the future I think we could even solve some problems remotely and not on the site.”
In addition to maintenance needs, Mantsinen Insight also records all main data on performance and efficiency. Engbergs has achieved the production increase they wanted with the help of the Mantsinen 120 Dualpower. “Looking at the last seven days, we have lifted 23 000 tonnes mainly running on electric motor. Our production has been in average 435 tonnes per hour,” said Kjell Arne Engberg.
“The speed of development is very interesting. This is mostly seen in cars, but also in industrial machines, there is a need to get away from fossil fuels. Even in the financial markets, there will be a trend of environmental friendliness, for example interest rates depending on how much your investments affect the environment; also reusing material and components will develop further.”
Other suppliers were considered during the procurement process, as Engbergs always carries out background investigations before seeking quotes. “With our investigation looking into the investment, it was very clear to us what we needed from the machine. It seems this materials handler with both diesel and electric drive is the right solution for us. We have reduced emissions enormously,” Kjell Arne Engberg concluded.