Refurbish four process cranes operated by Imperial Logistics International using a comprehensive package of measures

Demag Service will refurbish four process cranes operated by Imperial Logistics International using a comprehensive package of measures.

The cranes have served a steel coil store at its location in Bochum, เยอรมัน, for 16 years.

Besides storing steel coils that are delivered to them by a shuttle, the cranes, which operate on two parallel runways, ensure that coils are staged in time for further transport by truck or rail.

The double-girder overhead travelling cranes, which are manually controlled from a cab, have a load capacity of 36t. The four cranes handle some 2.7m tonnes of steel every year.

Following a detailed review by the Demag modernisation experts, a package of measures was defined for the crane installations. There will be a replacement of the 35m-long crane bridges, which are rated for a higher loading group classification (H3 B5). End carriages will be replaced with corner-bearing end carriages and frequency inverter-fed drives.

There will also be an installation of a complete new crane electric equipment including the control system, which now meets the requirements of Performance Level d and Safety Category 3 to DIN 13849-1.

Demag Service will equip the four process cranes with synchronised control, which will significantly reduce mechanical wear on the travel wheels and the crane runway.

The magnet equipment, the crabs with their 36t open winch units (MPW), the control cabs and the crane lights of the existing cranes will be kept and installed on the new crane bridges.

As part of the preparation work, the crane runways were surveyed with the Demag laser measuring system (LMS). The results indicated that more needed to be refurbished. Imperial Logistics awarded the contract to replace the entire crane runway, which measures 574m in length, to Kranservice Rheinberg, a Demag Service Company.

Holger Hausmann, senior project manager at Imperial Logistics International said: “Process reliability and on-time delivery are key elements of our business model, which our customers can rely on. That is why our crane installations need to have a high level of availability, since they work around the clock. With its modernisation package, Demag Service made us a good offer that will enable us to support our customers with reliable and efficient contract logistics also going forward.”

Carolin Paulus, vice president global services and marketing at Terex Material Handling said: “Demag service technicians have been looking after the crane installations operated by Imperial Logistics at their Bochum plant for years.

The level of quality that we provide there persuaded our customer Imperial also to award a contract to Demag Service for the maintenance of the cranes at their location in Wolfsburg. We are pleased about the confidence placed in us and we will use our expertise to quickly implement these modernization measures so that our customer can concentrate fully on his core business.”

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