NEWS | MARCH 2021
KÖPPERN TURNS TO DEMAG FOR ITS HIGHER LOAD CAPACITY
M
aschinenfabrik Köppern & Co. has installed a Demag ZKKW double- girder overhead travelling
process crane, at its factory in Hattingen, Germany, expanding its handling options to meet future needs. The family-owned firm, which
manufactures roller presses for briquetting, compacting and crushing, has five Demag cranes in total, proving support on a common crane runway with
a length of 135 metres and the ZKKW has a type MPW winch unit and a DMR rope hoist as an auxiliary hoist unit. Köppern turned to Demag after
searching for a crane with a higher load capacity for assembly of large-volume and weighty components into ready- for-handover roller presses, which takes place in hall three at its production site. During assembly the cranes are used for transport between the individual production areas in the factory.
Both the assembly of bearing housings and bearings as well as the completion of the rollers in the frame require precise positioning of the respective components and the newly installed Demag ZKKW double-girder process crane is equipped with an optical distancing system, which prevents any collision with adjacent cranes. Precise positioning of heavy loads is
the key to safe and efficient production. Thanks to the ZKKW process crane the MPW open-winch crab combines high load capacity with inverter-controlled precision and its load-dependent lifting speeds enable sensitive and exact positioning, right down to the last millimetre. “The frequency inverters allow a dynamic response with high precision and efficiency when operating the crane. In this way, the cranes ensure gentle handling of the load and reduction of load sway thanks to smooth acceleration and deceleration. The crane operator can efficiently and specifically position the individual components during assembly by means of frequency inverter- controlled lifting and lowering motions,” a Demag spokesman said. Its standard ProHub function enables a 50% higher rated speed and promises greater efficiency. It also comes with a digital and visible display on the end carriage, which visualises the current rated load on the hook for the crane operator.
The electronic load measuring device
protects the supporting structure and the hoist against overloads and the sensor system switches off the hoist in the event of an overload and only allows a lowering motion. ●
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