Würth International AG, based in Chur, Switzerland, has commissioned Kardex Mlog to refurbish a high bay warehouse at its logistics centre in Landquart. The project will focus on the two stacker cranes supplied by Kardex Mlog, which have been operating reliably since 2008.
Some of the machine components of the stacker cranes have now been discontinued by the manufacturer and can no longer be sourced. To ensure plant availability in the future, the goal is to sustainably upgrade to state of the art machines. The project will be carried out and completed within a very short timeframe between October and December 2025.
The two stacker cranes of type ecoMAN RE-1200 are approximately 22m tall and can each carry loads of 1,000kg. The load handling device is a telescopic fork for single deep storage and retrieval. The refurbishment of the machines includes reprofiling the rails, renewing the control and drive technology, as well as replacing the conductor line.
The installed Siemens controls of type S7-315-2PN/DP were discontinued as of 2020. These will be replaced by on-board, programmable logic controllers (PLC) of type S7-1515 F. In addition, decentral input and output modules of type ET200SP from Siemens will be installed. These Profinet-compatible assemblies record the lift carriage sensors and forward all signals onto the higher-level PLC.
To optimise the drive behaviour of the stacker cranes, the drive controls are also being updated. The same applies to the gear motors, which have also been discontinued. With the replacement of the drive technology in both the chassis and lift units alongside the telescopic forks, the machines will be state of the art.
Kardex Mlog, with head office in Neuenstadt am Kocher, Germany, is a specialist in integrated material flow systems and high bay warehouses. The company has more than 50 years of experience in the planning, implementation and maintenance of fully automated logistics solutions.
Having spent a decade in the fastener industry experiencing every facet – from steel mills, fastener manufacturers, wholesalers, distributors, as well as machinery builders and plating + coating companies, Claire has developed an in-depth knowledge of all things fasteners.
Alongside visiting numerous companies, exhibitions and conferences around the world, Claire has also interviewed high profile figures – focusing on key topics impacting the sector and making sure readers stay up to date with the latest developments within the industry.
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