Demag DR-Pro rope hoists
Versatile and fast – for load capacities up to 50 t
Leading the way with innovative solutions
Efficiency and high operating reliability are clearly defined With expertise for materials handling components, cranes
requirements to be met by state-of-the-art material flow, and hoists gained from almost 200 years of experience,
logistics and drive solutions. We develop and manufacture We supply efficient product solutions and services to
innovative products for industrial drives, load handling companies in all industries and to customers of all sizes.
and material flow applications for a wide variety of pro- Our priority is placed on meeting customer needs, so that
duction and storage solutions. Products that guarantee our products and services can be seamlessly integrated
minimised maintenance requirements thanks to low into the customer’s value creation process.
wear.
39804-1
2
Demag DR-Pro rope hoists – high performance for tomorrow’s needs
Demag DR-Pro rope hoists meet all the requirements of
state-of-the-art hoist units and give you the certainty of
a secure long-term investment. Besides their particularly
long service life, they also offer comprehensive standard
features at an attractive price.
Higher hoist speed for faster handling
Most Demag DR-Pro rope hoist models have a lifting
speed of at least 6 m/min with 4/1 reeving as standard.
Higher availability for greater efficiency
DR-Pro rope hoists are supplied with an increased FEM
classification. The rope drive mechanism precisely meets
FEM specifications, however, the gearbox service life is
20 percent longer. This means that there is 20 percent
more time until the general overhaul is due when the safe
working period has elapsed. The generous dimensioning
of all components also ensures constant availability.
The modular rope hoist design facilitates simple and rapid
maintenance and repair of individual components, thus
cutting any downtime to a minimum.
In addition to the economic benefits, Demag DR-Pro
rope hoists also provide a high level of safety for the
operator and the load.
Outstanding versatility
Available in four basic designs, the right solution can be
found for virtually any application with Demag DR-Pro
rope hoists:
39383-3
■■ GDR basic hoist
■■ FDR foot-mounted hoist
■■ EKDR monorail hoist Demag rope hoists move helicopters into position for
■■ ZKDR double-rail crab maintenance.
3
Safety and efficiency down to the last detail
38972-1-1
Low-vibration motor for quiet operation Gearbox lubricated for life
■■ Optimised motor design for low-vibration, quiet ■■ Three-stage helical gearbox with high endurance gearing
operation and oil lubrication for the entire service life
■■ 12/2-pole or 4-pole squirrel-cage motor with
cylindrical rotor Protective rope guide
■■ Thermal contacts to protect against overheating ■■ Rope guide made of tough plastic – reliable operation
as standard even in critical environments
■■ IP 55 enclosure ■■ Smooth rope lead-in by means of hardened pressure
■■ Pulse encoder to monitor the speed and direction rollers mounted on anti-friction bearings
of rotation as standard ■■ Inclined pull up to 4° without touching the rope guide
■■ Duty factor higher than FEM classification
User-friendly bottom block
Fast acting brake ■■ Guard for improved safety – moving plastic elements
■■ Demag DC disk brake with brake release monitoring, protect the opening where the wire rope enters the
minimum brake safety factor of 1.8 bottom block
■■ Fast acting brake thanks to integrated electronic modules ■■ Two handle recesses make it easier to handle and
guide the bottom block
4
State-of-the-art electrical equipment Ergonomically optimised controls
■■ Reliable internal signal transmission ■■ Cable-connected Demag DSE-10R control pendant
■■ Electrical equipment completely of modular design ■■ For two-stage and stepless operation
■■ Electrical enclosure with IP 55 protection ■■ Control cable available in three lengths, each infinitely
■■ Load spectrum recorder integrated in the controls adjustable in length by 4 m or with 2 TY cable for
to determine the remaining safe working period extremely arduous applications
■■ Load display for use with electronic overload protection
Precision geared limit switch ■■ Demag DRC-10 radio control
■■ Automatic cut-off of the lifting and lowering motions ■■ Tough hand-held transmitter with proportional push-
in the limit positions buttons
■■ Four contacts set for emergency cut-off in the upper ■■ Frequency hopping for reliable radio signal transmission
and lower positions as standard ■■ Bi-directional signal transmission
■■ Additional safety thanks to fast-to-slow cut-off ■■ Intelligent charging system
■■ Other functions, e.g. an operating limit switch, can also ■■ Both control pendant switches fitted with a display for
be set the load range and specific installation status information
■■ IrDA interface for direct data transfer with a laptop or
Overload protection PDA
■■ Electro-mechanical overload protection integrated in
the rope retaining crosshead
■■ Evaluation by means of the central electronic unit
which also specifies the partial load switching point for
a measuring run at slow lifting speed
■■ Optional: electronic overload protection for summation
when several hoists are used, load display and slack
rope cut-off
39589-5
39030-1
38962
39780
5
GDR basic hoist – the optimum solution for plant engineering
■■ For individual installation in any design
■■ Four different mounting positions and four rope
lead-off variants for versatile solutions
■■ Rope guide can be used for every rope lead-off position
■■ Can be attached on three sides (two attachment
arrangements for size GDR 20)
■■ Additional electrical enclosure can be fitted
to the hoist frame
■■ Load capacities up to 50 t
39950-4
39827
Load elevator precisely positioned by a Demag GDR basic
hoist.
Attachment variants and rope lead-offs Load bar operation
39820-2
39823-2
39822-2
39821-3
39821-2
6
FDR foot hoist – the solution ready for installation in cranes
■■ Reeving parts for all common reeving arrangements
are fitted to the hoist unit – enabling foot hoists to
be integrated direct into prepared steel structures
or special crabs
■■ Can be used in two mounting positions, each with
one rope lead-off direction
■■ Can be attached on three sides
■■ Load capacities up to 50 t
39751-7
39952-2
Demag FDR foot hoists travelling on a semi-automatic circuit in a galvanising plant.
7
EKDR monorail hoist – the series travelling hoist
for single-girder cranes
■■ Compact design with optimum approach dimensions
■■ Infinitely-variable cross-travel speeds for low sway and
gentle positioning
■■ Cross-travel inverter and braking resistor integrated in
the electrical enclosure to save space
■■ Load capacities up to 12.5 t
38926-2
39274-3
39752-7
Two EKDR monorail hoists transporting aluminium profile sections in tandem
operation.
8
EZDR double-rail crab – the series hoist for double-girder cranes
39804-52
■■ Features as for EKDR monorail hoists
■■ 1,400 / 2,240 / 2,800 mm standard track dimensions,
other track gauge dimensions possible
■■ Anti-derailment and lift-off protection for improved
safety as standard
■■ Load capacities up to 50 t
39472
9
Demag Service – always ready to help
We offer you comprehensive and reliable service with its Service systems: Demag IDAPSY
world-wide network of Demag expert service teams and We have developed an integrated service system for
Demag partners. They ensure the maximum possible Demag DR-Pro rope hoists: Demag IDAPSY. IDAPSY
availability and safety in your installation. stands for Inspection Diagnosis Application System.
Rapid and reliable spare part supply Service system with a wide range of benefits:
Customers all over the world are supplied with the ■■ Transparency
required spare parts quickly and flexibly by our service By recording utilisation of the installation, Demag
network. IDAPSY facilitates predictive and plannable service
to ensure a high level of availability.
■■ Analysis
Recorded data provides an excellent basis for analysis,
e.g. the load spectrum recorder can be read out and
error messages can be called up for maintenance or
repair purposes.
■■ Efficiency
Maintenance work carried out in good time ensures
that your installation is in optimum condition and
increases overall efficiency.
Demag IDAPSY enables service work to be carried out more
quickly. This means that your hoist is also ready for opera-
tion again even more quickly if service work has to be
carried out.
Your individual service package
Demag Service and our Demag partners offer a compre-
hensive portfolio of services to ensure the lasting avail-
ability of your installation throughout its entire lifecycle:
■■ Recurring inspections according to relevant accident
prevention regulations
■■ Inspection and maintenance
■■ Fault elimination both with and without on-call standby
■■ Service training for operators and maintenance engineers
39462-3
10
40269
Crane system data can be read out for predictive and scheduled service.
11
Technical data – selection criteria
The size of the hoist is determined by The group is determined from the operating time and load spectrum.
■■ the load spectrum
Load spectrum Average operating time per working day (h)
■■ the average operating time
1 Light 2 – 4 4 – 8 8 – 16 over 16
■■ the load capacity and
2 Medium 1 – 2 2 – 4 4 – 8 8 – 16
■■ the reeving arrangement
3 Heavy 0.5 – 1 1 – 2 2 – 4 4 – 8
4 Very heavy 0.25 – 0.5 0.5 – 1 1 – 2 2 – 4
1. What are the operating conditions? Group of mechanisms 1 Am 2m 3m 4m
2. What is the specified safe working Reeving arrangement
load? 1/1 2/1 4/1 6/1 8/1
3. To what height must the load be 2/2 4/2 8/2
lifted? SWL (t) Size
4. What is the required lifting speed? 0.5 1 2 – – – – – – ■
5. Do the loads need to be lifted and 0.63 1.25 2.5 – – – – – ■ –
lowered with great accuracy? 0.8 1.6 3.2 – – DR-Pro 3 – ■ – ■
6. Is horizontal load travel necessary? 1 2 4 – – – – – ■ –
7. How is the hoist to be controlled? 1.25 2.5 5 – – – – ■ – –
1.6 3.2 6.3 – – DR-Pro 5 ■ – – ■
2 4 8 12.5 – – – – ■ –
2.5 5 10 16 – – – ■ – –
3.2 6.3 12.5 20 25 DR-Pro 10 ■ – – ■
4 8 16 25 32 – – – ■ –
5 10 20 32 40 – – ■ – –
6.3 12.5 25 40 50 DR-Pro 20 ■ – – –
Example The average operating time per working day is estimated or calculated as
Load capacity 5t follows:
Load spectrum “medium” 2 av. hook path * no. of cycles/h * working time/day
Operating time / day = *
from table 60 * lifting speed
Lifting speed 6 m/min 2 * 3 * 20 * 8
Operating time / day = = 2.66 hours
Creep lifting speed 1 m/min 60 * 6
Reeving 4/1 For the “medium” load spectrum and an average daily operating time of
Average hook path 3m 2.66 hours, the table shows FEM group 2 m. For a load capacity of 5 t and
Cycles per hour 20 4/1 rope reeving, the table indicates hoist size DR 5 - 5.
Working time per day 8 hours
The load spectrum
(estimated in most cases) can be ascertained in accordance with the following definitions:
1 Light 2 Medium 3 Heavy 4 Very heavy
Hoist units which are usually subject Hoist units which are usually subject Hoist units which are usually subject Hoist units which are usually subject
to very small loads and in exceptional to small loads but rather often to to medium loads but frequently to to maximum or almost maximum
cases only to maximum loads. maximum loads. maximum loads. loads.
Heavy partial load Heavy dead load Very heavy dead
Small partial load
Medium partial load load
Small dead load
Medium dead load
SWL
SWL
SWL
SWL
Operating time Operating time Operating time Operating time
12
Selection table
Range SWL Hook path Lifting speed Group of SWL Hook path Lifting speed
mechanisms
t m m/min FEM/ISO t m m/min
2/1 4/1
1.6 2m / M5 ** 3.2
DR-Pro 3 12 6
1.25 12/2 18/3 1 – 25 * 3m / M6 ** 2.5 6/1 9/1.5 0.5 – 12.5 *
20 10
1 4m / M7 ** 2
2/1 4/1
3.2 9/1.5 12/2 0.8 – 16 * 1Am / M4 ** 6.3 4.5/0.8 6/1 0.4 – 8 *
2.5 12 2m / M5 ** 5 6
20 10
2 30 12/2 18/3 1 – 25 * 3m / M6 ** 4 15 6/1 9/1.5 0.5 – 12.5 *
1.6 4m / M7 ** 3.2
DR-Pro 5
4/2
3.2 9/1.5 12/2 0.8 – 16 * 1Am / M4 **
2.5 9.9 2m / M5 **
2 16.3 12/2 18/3 1 – 25 * 3m / M6 **
1.6 4m / M7 **
2/1 4/1
6.3 8/1.4 0.4 – 9 * 1 – 18 * 1Am / M4 ** 12.5 4/0.7 0.2 – 4.5 * 0.5 – 9 *
12 6
5 20 2m / M5 ** 10 10
4 30 10/1.7 1 – 18 * 1 – 25 * 3m / M6 ** 8 15 5/0.8 0.5 – 9 * 0.5 – 12.5 *
40 20
3.2 4m / M7 ** 6.3
DR-Pro 10
4/2 6/1
6.3 8/1.4 0.4 – 9 * 1 – 18 * 1Am / M4 **
5.8
5 11.35 2m / M5 ** 16 6.7
2.7/0.4 0.3 – 6 * –
4 18.4 10/1.7 1 – 18 * 1 – 25 * 3m / M6 ** 12.5 13.3
25.2
3.2 4m / M7 **
2/1 4/1
12.5 1Am / M4 25
10 24 2m / M5 20 12
3/0.5
36 6/1 12/2 1 – 16 * 18 0.5 – 5 * 0.5 – 8 *
8 3m / M6 16 6/1
54 27
6.3 4m / M7 12.5
4/2 6/1
12.5 1Am / M4 40
DR-Pro 20 10 12.3 2m / M5 32 12
21.2 6/1 12/2 1 – 16 * 18 4/0.7 0.3 – 3.3 * 0.3 – 5.3 *
8 33.2 3m / M6 25 24.7
6.3 4m / M7 20
8/2 8/1
25 1Am / M4 50
20 10.3 2m / M5 40 9
3/0.5
16.3 0.5 – 5 * 0.5 – 8 * 13.5 3/0.5 0.3 – 2.5 * 0.2 – 4 *
16 6/1 3m / M6 32
23.4 18.5
12.5 4m / M7 25
* Loads weighing up to one third of the rated load are moved at 1.5 times the rated speed (Prohub)
** Gearbox service life 20 % longer than the ISO / FEM full load service life
13
The fast way to select your Demag DR-Pro rope hoist
www.demag-designer.de is the address where all The practical and intuitive user interface ensures that you
important facts and data on Demag DR-Pro rope hoists find the right solution to meet your needs quickly and
can be found. This information and planning platform easily. You can then send us your specific enquiry at a
provides you with a comprehensive product overview click.
and contains all the data you need for project engineer-
ing. You can also download the CAD drawings of the You can also use the fax form to send us your enquiry.
entire Demag rope hoist range and integrate them into In addition, experienced Demag engineers are ready to
your design drawings. provide you with help and advice.
Suitable hoists and accessories can be selected in
this way.
14
Demag DR-Pro rope hoist project sheet
Terex MHPS GmbH Please send the quote to
Düsseldorf site
Ruhrstrasse 28
Company
58300 Wetter/Germany
P.O. Box/street
Fax service: +49 (0) 2335 92-2339
Town/post code
Attention of
Phone
Fax
Email
SWL kg Rope hoist and trolley design
Stationary rope hoist Yes No
FEM Group (if known) FEM
Monorail hoist Yes No
If you do not know the FEM Group, please specify
the type of application (e.g. workshop, production Travel girder profile (flange width) mm
or similar)
Actual operating time Double-rail crab Yes No
of the rope hoist per day hours
Track gauge mm
Lifting height m
Electrical equipment
Lifting speed m/min Operating voltage V Hz
Variable lifting speed by means
of an inverter Yes No Option: remote control Yes No
Special ambient conditions
(e.g. indoor or outdoor operation, ambient temperatures, operation in a galvanizing facility or similar)
15
No liability for errors or omissions. Subject to change.
0210 EN 213 133 44 701 IS 813
Printed in Germany TMH/300614/PDF
Terex MHPS GmbH
Wetter site
Ruhrstrasse 28 · 58300 Wetter/Germany
Phone: +49 (0) 2335 92-2922
Fax: +49 (0) 2335 92-2655
Email: ropehoist@demagcranes.com
www.demagcranes.com
