For example, users can configure various assistance and safety functions via an app.
The DVR rope hoist has five sizes with load capacities up to 80 tonnes and hook paths of 4–200 m.
The design concept is said to create the conditions for a range of variants, each of which can be adapted to the individual application with various options. Large drum diameters reduce potential hook travel and enable precise positioning.
The DVR series offers a choice of four designs. The F-DVR foot-mounted hoist with load capacities of up to 80 tonnes is suitable for stationary use or as a hoist for special trolleys, where it can be integrated into prepared steel structures. The EK-DVR is a monorail hoist with up to 12.5-tonne capacity, two driven travel wheels and optimised headroom, which makes the best possible use of the available space, even with a low C-dimension. Thanks to its variable flange width of 80 to 610 mm, the EU-DVR standard-headroom travelling hoist can be used in a range of applications. A curved articulated travelling hoist (EUD-DVR) is also part of the range.
The EZ-DVR double-rail crab is characterised by features such as a short track width and various types of connections to the crawl beam. It is suitable for modernisations when space is limited. The user can choose between two ergonomic control pendant series (DSB and DST). They can also add a range of options – from crane hooks and brakes to (radio) control.
Across all the designs, the user can configure the rope hoist for the tasks. As an entry-level model, a contractor-controlled version with limited selection options is now available. At the next configuration level, frequency inverters ensure stepless travel. The OWL and ELM electronic modules take over the functions of condition monitoring and electronic load management. The next level offers an integrated interface with an app for simplified status monitoring.
Finally, the maximum configuration level offers continuously variable lifting and travel speeds thanks to the Demag DMI inverter series. The ProHub function is claimed to offer more cost-effective operation, at higher speeds and thereby better handling performance. Without a load, the DVR travels at high speed and with partial loads at medium speed, while precise positioning is possible for full loads. ProHub ASR is expected to allow continuously variable lifting and ensure even more precise load positioning. ProHub ESR with closed loop performs at rated and partial loads.
The integrated OWL or DMU control units monitor all operating conditions and are integrated with additional safety and assistance functions. This include slack rope monitoring, the ‘Follow me’ function (moving the load by guiding the hook by hand), tandem control (two DVR rope hoists operated with one control unit), by-pass control (specifying blocked areas), hook-centering (automatic positioning of the hook above the load), area-related load reduction and load-sway reduction. The user can also configure the equipment via an app.