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It offers high levels of efficiency and productivity. You benefit from its flexibility in all areas of application. Thanks to its extensive product portfolio, the DVR offers customisable solutions for the various requirements of crane and lifting technology. From the standard version to the smart high-end solution with intelligent safety functions, the DVR rope hoist meets the demands for economical and ergonomic lifting solutions.
F-DVR foot-mounted hoist
EU-DVR standard-headroom monorail hoist
EK-DVR low-headroom monorail hoist with optimised headroom
EZ-DVR double-rail crab
As with all Demag products, the DVR rope hoist focuses on the needs of our customers. The desire for flexibility and productivity is anchored in the DVR, as is the desire for reliability and cost-effectiveness. As a result, the versatile rope hoist concept impresses down to the last technical detail.
The basic DVR design includes a large diameter rope drum. The benefits are: High positioning accuracy and low rope wear thanks to appropriately dimensioned guide rollers. In addition, the approach dimensions are very small.
The rope drum is manufactured in-house with high precision. Since only one jig arrangement is used for all production steps, its connection points are reproducibly positioned.
The rope guide is made entirely of metal and guides the rope reliably and precisely with very little wear.
For the larger sizes 10 (optional) and 20-40, rope guides that use the full circumference are installed as standard.
The rope can be pulled diagonally by up to four degrees without touching the rope guide. The ropes are galvanised as standard.
The DVR rope hoist is driven by a two-stage cylindrical motor for precise lifting and lowering. It has a motor output of up to 35 kilowatts.
Standard IP 55 classification, optionally also IP 66. All motor cables have plug-in connections for simple Plug & Play. The disc brake has a high braking torque and is designed for a service life of one million switching cycles.
The powerful DRC D3 radio control system permits maximum freedom of movement and ease of control. The new generation of radio transmitters can be used for up to five days of uninterrupted operation. Three transmitters can be paired with each receiver for simple transfer of control at the press of a button. Up to 40 systems from our D3 generation of radio controls can be operated in close proximity to each other without any mutual interference. High safety standards are satisfied by frequency hopping and listen-before-talk operation.
The powerful DRC D3 radio control system permits maximum freedom of movement and ease of control. The new generation of radio transmitters can be used for up to five days of uninterrupted operation. Three transmitters can be paired with each receiver for simple transfer of control at the press of a button. Up to 40 systems from our D3 generation of radio controls can be operated in close proximity to each other without any mutual interference. High safety standards are satisfied by frequency hopping and listen-before-talk operation.
A variety of options are available to equip the DVR rope hoist to meet your application needs. The DVR offers variable-speed drive solutions for lifting and travel motions by using different levels of technology. The advantages of the inverters are obvious:
Load-dependent lifting speed for higher productivity:
Compact unit for overload protection and status display for increased safety and predictive maintenance.
Convenient monitoring unit with CAN bus functions for improved safety, extended brake service life and optimised maintenance intervals. Identifies training needs for operators.
n optional rain cover ensures the crane can operate outdoors.
Anti-sway control
Prevents increased load sway by active counter-motions of the crane. Active system based on rope angle measurement to detect and dampen any existing load sway.
Slack-rope prevention
Continuous monitoring of the rope tension: The hoist drive automatically switches off when the load has been lowered to its target position or if the hook is accidentally snagged. Reduces the risk of damage to the load, crane and surrounding area.
Area-specific load reduction
Areas can be defined which the travelling hoist may only enter if the load does not exceed a reference value. This reduces the load on the runway and building structure – especially when several cranes operate on one runway.
Bypass control
Areas to be blocked for the travelling hoist can be specified. In this way, you can safely by-pass high parts of machinery or zones that are out of bounds.
Tandem control
Loads can be safely transported by two DVR rope hoists – via a single control unit.
Follow me
Makes lifting operations much faster because the crane can be moved above the load by simply guiding the hook by hand. (Recommended for cranes up to 10 t).
Hook Centering
Makes lifting operations much faster because the crane can be moved Positions the crane hook automatically directly over the load. The benefits: faster load cycle times and ease of operation.
Smart Tandem control
Two cranes with up to four rope hoists can also be synchronized.
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We understand how costly downtime can be. Protech takes pride in shipping electric hoists and overhead crane compenents all across the USA in a timely manner. Most of our hoists are shipped from Springfield Ohio, USA.
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