High load capacity combined with wide spans ZKKE double-girder cranes A solid investment in handling efficiency and performance Our double-girder overhead traveling cranes offer exceptional load capacity for a low deadweight. Their outstanding crane geometry also provides for extremely good travel characteristics, which minimizes wear on the end carriages and crane runway. The load hook can be raised between the two crane girders, which allows large lifting heights to be achieved. Further strengths? High long and cross-travel speeds thanks to high-performance double-girder design Low deadweight reduces investment layout Crane girders can be adapted to building structure requirements Minimum approach dimensions thanks to compact traveling hoist design Crane control to meet application requirements: via radio control, control pendant or cab control (optional) Maintenance platform and accessible crab facilitate maintenance of building interior fittings (optional) Your Contact Demag Cranes & Components GmbH Postfach 67 58286 Wetter Germany Phone: +49 (0) 2335 92-0 Fax: +49 (0) 2335 92-7676 Email: [email protected] Contact Product information The benefits at a glance Highly cost-effective Low deadweight reduces investment layout – crane girders made of computer-optimized box sections Connections between the main girder and end carriages manufactured to mechanical engineering tolerances for minimum wear Increased efficiency thanks to DR rope hoist with extended service life due to Demag 2m+ classification (1,900 hours of service at full load) Favorable travel characteristics and minimum wear of the crane runway and travel wheels thanks to low-maintenance drives Travel wheels of highly wear-resistant GGG 70 spheroidal-graphite cast iron with self-lubricating properties Reduced construction and operating costs thanks to optimized designs Strong performance Particularly high performance thanks to double-girder design for high long and cross-travel speeds Optimum utilization of the available height and space thanks to compact traveling hoist design (minimum approach dimensions and large hook path) Particularly high lifting height, as the load hook can be raised between the two crane girders End carriages of torsionally rigid, welded box-section design Power supply to the crab by means of highly flexible flat cable with protective earth conductor Reliable monitoring and preventive maintenance thanks to CAN Bus technology to meet tomorrow's demands for high data transmission reliability (category 3 to DIN/EN 954) Control pendant suspended for separate travel on the crane girder with display for installation monitoring Great versatility Optional maintenance platform and accessible crab – for even easier crane maintenance as well as fast and safe access to building interior fittings (lights, radiators, supply lines) Optional radio control with display and proportional pushbuttons Optional radio control with power and signal transmission via energy chain system Large number of fittings can be installed Cab control Technical data Load capacity up to 50 t Track gauge up to 35 m Long-travel speed up to 40 m/min Cross-travel speed up to 25 m/min Lifting speed up to 12.5 m/min Design variants Variants for optimum adaptation to the building design Equipment options With our wide range of equipment options, we match our universal cranes to the individual requirements of your application: automatic height adjustment of the control pendant to facilitate load attachment control by pendant switch control via bi-directional radio control with proportional pushbuttons smooth starting helps to avoid load sway end carriages with horizontal guide rollers eliminate skewing and thus the lateral forces which otherwise act on the crane runway limit switches or slack rope relays protect the hoist and load from damage bypass control system prevents collisions with obstacles along the crab travel path anti-collision protection and crane distance controls ensure the safe operation of several cranes on one runway cranes fitted with two crabs make it easy to handle long and awkward loads comprehensive range of load handling attachments satisfies the most varied requirements. Downloads Brochures Demag Universal Cranes Application examples ZKKE double-girder overhead travelling crane Precise handling Reliable material flow More Precise handling Application examples ZKKE double-girder overhead travelling crane Workshop in a paper factory: maximum lifting height with a ZKKE and two DR-Pro rope hoists that can also be operated in tandem Precise handling ZKKE double-girder overhead travelling crane equipped with motor-driven rotating coil tongs, special equipment: maintenance walkway over the entire length of the crane Reliable material flow Integrated materials handling concept with four double-girder overhead travelling cranes and 6.3-tonne DR-Pro rope hoists that operate in tandem Precise handling Radio-controlled ZKKE double-girder overhead travelling crane equipped with two hoist units, fitted with energy-chain system Reliable tandem operation Two cranes, four hoist units: rated for total loads of up to 36 tonnes in an agricultural machinery production facility Reliable material flow concept Outstanding intralogistics concept with double-girder cranes and wall-mounted cranes on the second operating level Related products EKKE single-girder overhead traveling cranes up to 16 tonnes Optimum performance and cost-effectiveness EKWK wall-mounted traveling cranes up to 6.3 tonnes Supporting processes at the workplace V-type crane The V-type crane revolutionises load handling. Its innovative design featuring tapered diaphragm joints reduces oscillation frequency by 30%, cuts its weight by an average of 17% and doubles its service life to as many as 500,000 changes of load.