Technical excellence down to the last detail
As for all Demag products, development of our DMR modular rope hoist also focussed on our customers’ needs. Flexibility and productivity, as well as its long service life and cost-effective operation are key characteristics of our DMR. Consequently, the impressive modular rope hoist concept also offers sophisticated technical details.
High performance and precision
The DMR rope hoist drive employs a high-performance cylindrical-rotor motor to ensure precise lifting and lowering motions. It achieves motor outputs of up to 45 kilowatts. The rope hoist in co-axial design positions loads with even greater precision with its optional F10 microspeed unit. The drive consists of two separate conical-rotor motors for the main and creep lifting motions. The motors offer outstanding braking capacity as well as automatic braking if the power drops or the motor is switched off. All motor cables feature plug-and-socket connections for plug-&-play operation.
Frequency-controlled or pole-changing operation
You also have a choice of motors: hoist motors for variable speeds or two-stage speeds.
Long service life and ease of maintenance
The coupling between the motor and gearbox absorbs sudden motor forces for a longer rope hoist service life. In addition, DMR can be easily retrofitted with a rotary encoder. If the motor needs to be changed, the gearbox oil does not have to be drained.
Efficient oil lubrication
The DMR gearbox provides for long maintenance intervals thanks to its efficient oil lubrication. Its enclosed design offers protection against external factors. DMR also requires 30 percent less oil.
Low wearing and versatile
The rope guide is made of tough, acid-resistant plastic and boasts extremely low wear. The rope can accommodate inclined pull up to an angle of 4 degrees without touching the rope guide.
The cover for the rope drum consists of two parts. All rope hoists are supplied with vertical panels to protect the drum as standard. If required, they can also be supplied with a horizontal cover for the rope drum.
Light-weight and tough design
The housing of DMR hoist unit sizes 3, 5, 10 and 16 weighs much less than those of previous models. Thanks to high-quality powder coating, which provides optimum protection against corrosion, all DMR rope hoists can also be operated in aggressive environments.
Safety and low wear
Larger rope sheaves in the top and bottom blocks significantly reduce rope wear also over longer periods of operation. The two-piece hand guard with moving plastic elements protects the operator against accidental contact. If necessary, it also allows wearing parts to be quickly replaced without the need to remove the rope. Two handle recesses make it easier to handle and guide the bottom block.
Radio control: high performance
We also offer our customers maximum flexibility and freedom of choice for their specific control needs. Our high-performance 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.
Wired connection and ergonomic
For control from the ground, the DMR rope hoist works with two control units – depending on the control system electric equipment. For use with our Demag SafeControl smart control system, our DSE 10R control pendant provides for safe and reliable control of the rope hoist and facilitates fatigue-free operation thanks to its ergonomic design. Rope hoists that have contactor controls are operated via Demag DST control pendants.
Smooth frequency inverter control
DMR travelling hoists are fitted with frequency inverter-controlled cross-travel motors as standard and travel with variable speeds from 3 to 30 m/min. They offer precise positioning and smooth travel that is kind to the runway – supported by high-strength steel travel wheels and guide rollers. If required, we can also supply DMR low-headroom and standard-headroom travelling rope hoists and double-rail crabs with two-stage travel speeds.
Lighter and more versatile
The DMR trolley is a compact, light-weight unit thanks to the use of high-performance pressure rollers. DMR rope hoists can also be supplied with counterweights, as required.
Electric equipment housing
Compact and spacious
All control elements are accommodated in our compact Demag electric equipment housing. Despite its compact design, it still offers enough space for integration of our Demag StatusControl remote diagnosis system and our DRC D3 radio control system at any time. Two mounting positions are prepared for installation of the housing on the DMR rope hoist. Practical plug-in connections enable limit switches to be fitted just as easily as the cabling and wiring.