Innovative lifting solutions for safe and forward-looking operation: The new DHR rope hoist offers a high level of versatility and productivity. The DHR combines the powerful features of its two predecessor generations: Reliability, productivity and – thanks to numerous options – tailored implementation to meet the requirements of many industries. From simple lifting applications to high-performance rope hoists with smart assistance and convenience features, the DHR meets all demands for highly efficient load handling.
Compact
DHR rope hoists with compact design and low deadweight stand out due to their small external dimensions and a further reduced C dimension. This makes the best possible use of the working space for crane applications or stationary equipment.
Innovative
DHR rope hoists offer tailored solutions based on a single platform. Additional hardware options and smart features make a DHR rope hoist a smart hoist that is well equipped to meet future requirements: Lifting to the next level.
Smart
Demag DHR rope hoists offer smart features that make load handling even safer and more efficient. And transparent at all times thanks to the monitoring and remote monitoring tools.
DHR highlights
DHR rope hoists fulfil almost any requirement:
EK-DHR: monorail hoist, optimised for use on single-girder cranes or monorails
G-DHR: basic hoist for plant engineering
With the DHR rope hoist, you have the choice for the first time: Proven lifting technology with steel ropes or with innovative synthetic ropes.
Features of the synthetic rope:
Made of high-modulus polyethylene fibres
12-strand non-rotating structure
Around 85% lighter than steel rope
Suitable for indoor and outdoor use
Temperature range: -10°C - +45°C
No lubrication required
No wear on rope drum and return sheaves
One type of rope for all applications
Dual Drive
For high traction, the DHR monorail hoist is equipped with a DualDrive two-wheel drive as standard. Two of the four wheels have a synchronised belt drive.
The benefits are:
Reliable cross-travel motion and positioning
Optionally available: Installation of a second cross-travel motor (DualDrive Plus), for particularly challenging ambient conditions (e.g. outdoor use, dirt accumulation on crane rail)
Thrust rocker
The DHR rope hoist has compact dimensions. It also impresses with a weight-optimised design of the hoist trolley: No counterweights are required because of the thrust rocker. These are available as an option.
Key benefits:
Reduced deadweight
Compact dimensions
Blue safety light
Added safety: a blue dot of light is projected on the floor to indicate the hook position.
Product information
Rope drum/rope drive
Low wear on ropes and return sheaves
Common drum for steel and synthetic ropes with specific coating
Easy access to upper return sheaves and rope anchorages
Return sheaves with spokes (reduced weight)
GJS 700 return sheaves (self-lubricating effect)
Protective rope drum cover
Completely protected two-piece design for protection against external factors
Protective rope guide
Made of tough, acid-resistant plastic in full-circumference design
Inclined pull of up to 4° without touching the rope guide
Rope guide identical for both rope types (stock benefit)
Rope design
Flexible galvanised steel side with 1960 N/mm² tensile strength
Optionally also with synthetic rope (reduced deadweight)
Hoist gearbox
Three different gearbox sizes
Compact and lightweight design
Quiet and low-vibration operation thanks to ground spur gears
Lubricated for life in die-cast aluminium housing (IP 66)
Hoist brake
Magnetic disc brake with high brake torque
Fully enclosed design, IP 55 protection
Designed for 1 million switching cycles
Drive system
High traction with low wear
DualDrive with two driven wheels
Minimum drive noise
Long-lasting drive principle with high traction and reduced wear
Highly durable travel and guide rollers with long service life
DualDrive Plus for DHR 10 in particularly challenging environments
Tailored drive concept
Weight-optimised hoist trolley design with pressure rollers
Alternative: version with counterweight
Electric equipment
Universal electric equipment box for hard-wired or CAN bus control
Option for EK-DHR for efficiency-enhancing assistance functions
DMU with modem for Demag Equipment App (DEA) and StatusControl 2.0: Monitoring, remote diagnosis and parameter programming
For 50 or 60 Hz operation
Service-friendly wiring
IP 55 enclosure
Ergonomics and safety
Bottom block with guide handle for safe, ergonomic handling
Return sheaves that protect the rope
Protective cover for increased safety
Load hook with DIN dimensions can be rotated 360°
Travel unit structure
Weight-optimised design based on tube design for all sizes
Travel motors
Infinitely variable cross-travel speeds with inverter (10/32 m/min)
Further speeds possible
Thermal overload protection
Frequency inverters can be programmed via app
Control concept
Numerous variants available
DSB: up to 10 buttons (IP 65)
DST: powerful and robust controllers
Radio controllers with various feature levels: from simple control buttons to hand-held transmitters with infinitely variable speed and joystick control
DRC: new generation of radio remote control
Proven system
Continuously tested in our own test center and in external tests
Quality made in Germany
Light crane system from the market leader with more than 50 years of experience
Professional planning support
Free KBK Designer online tool for project engineering your KBK installations
Planning made easy: fast, self-explanatory configuration including static calculation, parts list, technical drawing and quotation price
Link to the Demag Shop order system for simple and reliable orders at the click of your mouse
DHR Rope Hoist
DHR units offer variable-speed drive solutions for lifting and travel motions at different technology levels.
Advantages:
Variable speeds: 1:10, 1:25, ESR 1:37
Less wear: gentle lifting/travel motions relieve the load on the crane installation
Longer motor/brake service life
Significant energy savings of up to 50%
Smooth start-up, less load sway
Load-Dependent Speeds:
High speed without load (up to 300%)
Medium speed with partial load
Precise speed at full load
OWL
Compact unit for overload cut-off and status display for increased safety and predictive maintenance (Electric Load Management/ELM).
Features:
Overload protection for individual hoists
Simple condition monitoring
Number of switching operations
Operating time
Number of braking operations
Number of control operations
Temperature index
Number of events with overload
Can be used for SWP calculation
DMU
Monitoring unit with CAN bus functions for improved safety, longer brake service life and optimised maintenance intervals (ELM II).
Features:
Overload protection
Monitoring for sudden load increase
Temperature monitoring for motors
SWP elapsed operating time counter
Monitoring of motor function
Monitoring of the supply voltage
Motor start/stop due to slow speed
Tandem with multiple hoists (up to five units)
Design limits (warnings)
Optional remote monitoring modem
Smart features
CAN bus functionalities
Further Options
Radio control
Second hoist brake for DHR 3, 5, 10
Cable drum
Double load hook
IP 66 protection
Stand-by heating
Thermal contacts for all motors
Large load display
Rain canopy
Limit switches
Anti-collision protection
Rail sweepers
and many more
Shorter cycle times
More cost-effective
Improved workplace safety
Load-sway reduction
Prevents increased load sway by active counter-movements of the crane. Active system based on rope angle measurement.
Slack rope protection
Continuous monitoring of rope tension: Automatic cut-off of the hoist motor when slack rope is detected.
Area-dependent load reduction
Defined areas that the trolley may only enter when the load does not exceed a reference value.
By-pass control
Defined restricted areas (e.g. structures, machines) that must not be approached by the trolley.
Tandem control
Loads can be transported safely with two DHR rope hoists – all from a single control unit.
With Demag Modular Control:
Follow-me
Crane can be moved over the load by simply guiding the hook by hand. (Recommended for cranes up to 10 t).
Hook centring
Automatically positions the crane hook directly above the load. The advantages: faster load cycles and improved ease of operation.
Diagonal pull prevention
Rope angle monitoring, automatic cut-off in the event of diagonal pull (> 4°) to avoid dangerous situations.
Diagonal pull prevention
Rope angle monitoring, automatic cut-off in the event of diagonal pull (> 4°) to avoid dangerous situations.
With Demag StatusControl 2.0, smart system management, you have full control of your rope hoist at all times and from anywhere. Our remote monitoring system provides you with up-to-date operating data and evaluations for the DHR – as a solo component as well as in crane applications. Full transparency on utilisation, usage, risk of downtimes and service life. Simply, reliably and at a glance.
Do you only find out the usage and user data for your DHR rope hoist once a year during inspection and maintenance? This is a thing of the past with the Demag Equipment App. Within the radio range of the hoist, you receive the current data in real time and visually displayed on your end device. Trained users can also adjust DHR parameters.
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