The ST chain hoist

07.2011
The ST chain hoist

The ST chain hoist programme ranks among the world’s by 33 % and over 60 % respectively. For exceptional
most distinctive and extensive ranges on offer. Users, requirements, our experts in the engineering department
crane manufacturers and systems manufacturers will develop suitable customised solutions. Even
appreciate the robust classic which proves itself in in explosive atmospheres you do not have to manage
operation day for day. It is powerful, reliable and without the ST chain hoist. On request, nearly the
undemanding as regards maintenance and power entire chain hoist programme is available in explosion-
consumption. The supervised series production of the protected design for Zone 1, Zone 21 and Zone 22.
standard components brings you economic advantages. It’s no coincidence that we are market leader for explosion-
And in conjunction with the precise manufacture protected lifting technology and crane components.
of off-standard components, the ST chain hoist is an
acknowledged top level quality product.
The modular system permits numerous combinations of the
sub-assemblies to achieve your individual solutions.
The ST series from STAHL CraneSystems is available in
13 load capacity variants for the load capacity range
from 125 kg to 6,300 kg. The chain hoists can be used as
stationary models with suspension hook or eye,
with rigid suspension or with a push trolley. Or when
completed by an electric trolley they are mounted on
standard cranes, off-standard cranes or in systems
manufacture. The technical highlight which makes the
ST chain hoist one of the safest around is the direct
suspension on the patented solid cast iron chain guide.
The load is supported at the point where it engages.
Various off-standard designs are available for use in
particular conditions. Two constructions optimise the
effective hook height of all chain hoist models if
required. The headroom of the short-headroom trolley
and the extra short headroom trolley is reduced

Standard ST chain hoist with electric trolley

The facts

„ The most comprehensive chain hoist

programme for the load capacity
range from 125 kg to 6,300 kg
„ Patented suspension directly on
chain guide
„ Equipped with two hoisting speeds
as standard
„ Extremely short and compact
construction ensures that space can
be utilised to the maximum
„ High standard classification in
accordance with FEM
„ Modern Kanban production,
available fast
„ Available as an option in explosion-
protected design complying with
ATEX and IECEx

Î Please order our brochure with

fundamental information on
expertise in explosion protection.
4I5 The ST chain hoist

The models and trolley variants

Different construction types and trolley variants for the ST chain hoist open up
the most varied applications in crane and systems manufacture. Individually
tailored to your specific requirements as stationary hoist or for use with a
trolley. The trolleys are equipped as standard with one travel speed, as an
option the motors can be supplied with two travel speeds. But in this matter
too we are open to your requirements. Our chain hoists are known worldwide
for their flexible and versatile use. Compact dimensions and extremely short
approach dimensions help to make optimum use of the production shop.

Suspension for stationary version

The standard stationary ST chain hoist has
hook suspension. However you can also
choose eye suspension or rigid suspension.
The eye suspension is used when the
stationary chain hoist is only rarely moved
to a different location, while the low
headroom permits long hook paths even in
low-ceilinged rooms. If the ST chain hoist
is to be permanently mounted, for example
in systems manufacture, we recommend
rigid suspension. Here too the extremely
short headroom is of advantage. In addition,
the rigid mounting prevents the chain hoist
swinging on the trolley. Hook Eye Rigid suspension

Foot mounting for stationary version

In order to utilise space optimally in low-
ceilinged rooms the ST chain hoist can
be bolted from below onto a foot mounting. ST 05 mounting ST 10 – ST 60 mounting (view from below)
 U = adius of bend down to 800 mm possible

Push trolley DUE articulated trolley

In standard version, the ST 05 and ST 10 1/1 chain hoists are The DUE articulated trolley is available for frequent travel around bends
suspended by eye or hook from the smooth-running push trolleys. and narrow radii. Depending on radius of bend, runway flange width
Rigid suspension of the chain hoist is possible on request. or application it is equipped with one or two travel motors. The lateral guide
The push trolley does not affect the low headroom of the hoist. rollers cause minimum wear. The DUE articulated trolley is designed for
Optional wheel arresters make your workplace safer. load capacities up to 6,300 kg.

›Standard headroom‹ electric trolley ›Short headroom‹ electric trolley

Even with the smooth-running electric trolley the extremely The smooth-running electric trolley can also be combined with the
short headroom permitting long hook paths is typical. ST short headroom chain hoist, reducing the headroom by a further 33 %.

Standard
Option Type Load capacity Stationary Push Electric Articulated Short head- Extra short head- Dual chain hoists
up to [kg] trolley trolley trolley room trolley room trolley
STD STD Vario
ST 05 125 – 630
ST 10 500 – 1,000
ST 20 1,000 – 2,000
ST 30 1,250 – 3,200
ST 50 2,500 – 5,000
ST 60 3,200 – 6,300 *

* The ST 60 is only available with 1/1 reeving in the standard programme.

6I7 The ST chain hoist I The models and trolley variants

The STK extra short headroom trolley

If you do not want to lose even a millimetre of
lifting height, the STK extra short headroom trolley from
The facts
STAHL CraneSystems is just the thing for you.
The construction of the short headroom trolley itself saves „ Compact dimensions achieving
a tremendous amount of space. The body of the chain maximum height of lift
hoist is mounted at an angle, meaning that no return „ Specially developed for low-
sheave is required. This reduces the headroom by 33 %. ceilinged rooms
The extra short headroom trolley with its headroom „ Low deadweight
reduced by 60 % achieves maximum hook paths partic- „ Load is lifted steadily and
ularly in extremely low-ceilinged rooms and fully without swinging
deserves its name. The distance from the underside of „ Largely maintenance-free
the beam to the bed of the hook is just 210 mm at „ Trolleys with no projecting edges
a load capacity of 5,000 kg and 185 at 3,200 kg. These for steady cross travel
dimensions are extremely small and are unique at „ Available as an option in explosion-
present. The chain hoists used here, mounted vertically, protected design complying with
are based on the standard ST chain hoist programme ATEX and IECEx
from STAHL CraneSystems.
The patented chain drive is unique. Two separate chains
running in synch act on a single bottom hook block.
The load is lifted and positioned without swinging or
vibrating.

The patented design of the extra

short headroom trolley reduces its
headroom by 60 % and permits
exceptional lifting heights particularly
in low-ceilinged rooms.
 B = 210
A = 580
524
773

707

871
D = 330

C = 910

Standard headroom Short headroom Extra short headroom

The dimensions apply to an ST chain hoist with a load capacity of 5,000 kg

and standard lifting height of 3 m.

Type STK 0502- 8/2 2/2-1 STK 0502- 8/2 4/2-1 STK 3016-8/2 2/2-1 STK 5025-8/2 2/2-1 STK 3016-8/2 4/2-1 STK 5025-8/2 4/2-1
Load capacity 500 kg 1,000 kg 1,600 kg 2,500 kg 3,200 kg 5,000 kg
Hoisting speed (50 Hz) 8 m/2 min 4 m/1 min 8 m/2 min 8 m/2 min 4 m/1 min 4 m/1 min
Hoisting speed (60 Hz) 10 m/2.5 min 5 m/1.2 min 10 m/2.5 min 10 m/2.5 min 5 m/1.2 min 5 m/1.2 min
No. of falls 2 4 2 2 4 4
Output (50 Hz) 0.8/0.2 kW 0.8/0.2 kW 2.3/0.57 kW 3.8/0.9 kW 2.3/0.57 kW 3.8/0.9 kW
Output (60 Hz) 0.96/0.24 kW 0.96/0.24 kW 2.8/0.68 kW 4.6/1.1 kW 2.8/0.68 kW 4.6/1.1 kW

Dimensions Dimensions stated are approximate (subject to alterations)

A 260 mm 490 mm 520 mm 580 mm 520 mm 580 mm
B 136 mm 151 mm 185 mm 210 mm 185 mm 210 mm
C 565 mm 750 mm 800 mm 910 mm 800 mm 910 mm
D 264 mm 290 mm 300 mm 330 mm 300 mm 330 mm

Other hoisting speeds, supplementary equipment such as gear limit switch and explosion-protected designs are possible. Please enquire.
8I9 The ST chain hoist I The models and trolley variants

The STD dual chain hoist The facts

The STD dual chain hoist is an off-standard development for long goods
„ Low space requirement permitting
and loads which need to be picked up at two points. It has two load chains
maximum height of lift
which are driven in synch by a single hoist motor. The distance between
„ Two hook lead-offs running in
the hooks can be selected to suit the goods to be transported. The design
synch on one hoist
means that the two running hooks running in synch lift and transport the load
„ Synchronous even with uneven
without dangerous tilting. Its low headroom makes the STD dual chain hoist
loading, no load swing
suitable for low-ceilinged rooms too and achieves maximum hook paths.
„ Individually adapted to width
There are different versions of the STD dual chain hoist available. Depending
of load
on the requirements or the space available there are versions where the load
„ Largely maintenance-free
hooks are either to both right and left or only on one side of the chain hoist.
„ Optionally available in explosion-
For stationary use, the STD chain hoist, adapted to the width of the load,
protected design complying
is rigidly mounted on a substructure. In combination with an electric trolley
with ATEX and IECEx
the STD chain hoist becomes mobile. The STD Vario dual chain hoist with
its electrically adjustable distance between hooks allows goods of different
lengths to be lifted without difficulty, transported, and accurately positioned.
Even when the loads have different lengths or the load hooks are differently
loaded, the two load hooks run steadily and completely in synch.
›Z‹ design ›E‹ design
The load hooks are on the left and right of the chain hoist. The load hooks are on one side of the chain hoist.

STB Big Bag design

The Big Bag version is designed for load capacities up to 3,200 kg. Its special
Stationary dual chain hoist feature is the free choice of the distance between chain hoist and load
The STD chain hoist is adapted to the width of the load and rigidly hook which makes lifting bulky loads or Big Bags up to top hook position possible
mounted on a substructure. without hindering edges such as trolley, chain hoist or chain box.

The STD Vario dual chain hoist

The distance between hooks is electrically adjustable and can be individually
adapted to loads of different lengths. Both hooks run absolutely in synch. The load hooks
cannot be accidentally shifted during lifting or travel.
10 I 11 The ST chain hoist

The technology

2 Motor 4 Brake

It’s reassuring to know what convincing technology is

concealed in the robust ST chain hoist. The largely
maintenance-free components of the modular chain hoist
are optimally matched to each other. They guarantee
constant performance, high efficiency and long service
life. One of the main features guaranteeing safety
in the workplace is the patented solid cast iron chain
guide. The load-bearing components are integrated
into this component so that the load is supported where „ High standard classification in „ Low-maintenance, asbestos-free
it engages. The direct suspension means that the accordance with FEM electromagnetic disc brake
power flux is not diverted via the housing. „ Powerful motors with high duty cycle „ Oversized braking torque
and number of switching operations „ Long-lived, brake wear can be checked
„ Standard fan cooling and measured
„ Two hoisting and travel speeds as „ Safe in inching operation
standard permitting the load to be „ Brake completely enclosed, protected
positioned accurately from humidity, vapours and dusts
„ Single-speed and four-pole versions from the exterior; ensuring long-term
are available as options reliable operation
„ Ptc thermistor temperature control

1 Chain drive 3 Control 5 Paint

„ Innovative patented chain drive „ All customary connecting and control „ Standard paint treatment as per
(DE 198 49 693 C2) voltages are available RAL 6018 yellow-green and RAL 7021
„ Anchorage and load-bearing components „ Plug connection of control pendant and greyish black
are directly integrated into the high-tensile travel motor „ High-quality primer and top coats for
grey cast iron „ Clear arrangement of contactors standard applications
„ Simple inspection and replacement of „ As an option, available with direct control „ Off-standard paint treatment for outdoor
the chain sprocket thanks to over-mounted „ As an option, available without control use or corrosive ambient conditions
shaft bearing pendant and/or contactor control „ Shade as per customer’s requirement
„ Enclosed self-lubricating chain guide
„ Reliable functioning even in demanding
applications
„ Wear-resistant case-hardened chain
sprocket in conjunction with optimised
return sheaves; ensuring low wear on
the chain
 6

2
1

6 Overload slipping clutch and gear 7 Chain 8 Chain box

„ On the ST 10 – ST 60, the slipping clutch „ Surface-hardened, galvanised and „ Large selection of chain boxes in plastic,
is situated in the oil-cooled gear large dimensioned load chain sheet steel or textile
„ Easily adjustable from the exterior „ High case depth for long service life „ Available without chain box as an option
„ Precise response „ High FEM classification
„ No electronic limiting necessary „ Stainless steel load chains are
„ Various gear reductions available available as an option
„ Innovative materials
12 I 13 The ST chain hoist

The equipment

There’s always room for improvement. Although it is first-class in the standard

version, you have the option of making your ST chain hoist even safer,
more cost-effective, more convenient with numerous mechanical, electrical
and electronic features. As a welcome side-effect, the service life of the
chain hoists is prolonged. The supplementary equipment increases the
performance of the chain hoist and adapts it to your individual requirements.
Here we show you just the most interesting supplementary equipment
and options. If you need further detailed information, please pay a visit to
our website at www.stahlcranes.com, or contact us directly.

STH control pendant Radio remote control units RMI RadioMOVEit radio remote control

„ Robust control pendant with EMERGENCY „ micron push-button transmitter with „ Ergonomic one-hand pushbutton radio
STOP palm button and control cable belt clip, as an option signal feedback remote control with emergency stop
„ All switching elements for hoist, cross from crane function for all chain hoists
and long travel are 2-step „ spectrum joystick transmitter with „ Suitable for right- and left-handed
„ IP 65 protection harness operators
„ Additional buttons, for example to „ Automatic battery chargers with „ Covers the whole load capacity range
activate a horn, can easily be fitted. replacement batteries „ Spiral cable does not restrict the height
„ Optional load display. All data displayed of lift
can be read out on a notebook with „ The remote control unit can be positioned
the aid of the SMC Multicontroller. anywhere on the chain fall independent
of chain size
„ Load is guided directly with the non-slip
handles
SMC Multicontroller SSC cumulative load control

„ Continuous load monitoring by overload „ Load control by overload cut-off,

cut-off even if hoist is at a standstill increased safety when operating with
„ Overload protection with ALC automatic more than one load hook
load control „ Maximum of four separate loads can be
„ Load spectrum memory for load-related registered
operating time summation „ Separate loads are measured and
„ Monitoring of motor temperature for hoisting disconnected if permissible
hoist and travel motors limit load is exceeded
„ Operating data registration, e.g. operat- „ Differential load monitoring possible
ing hours, load spectrum, motor „ Using the flexible SSC cumulative
switching operations and load cycles load control increases the safety of
„ Data exchange with PC possible material transport and prevents
overloading the system.
„ Optionally available with certified load
summation in category ›3 Performance
Level d‹ and EN 954

Operational hoist limit switch Steel chain guide

„ Two versions are possible: cut-off in top „ Heavy high-tensile chain guide for
hook position or cut-off in top and bottom rugged use
hook position (stationary, push trolley, „ Oversized load chain with 5-pocket chain
electric trolley) sprocket
„ Chain drive is completely enclosed
„ Suitable for particularly demanding
application conditions
„ Extremely wear-resistant case-hardened
chain sprocket
14 I 15 The ST chain hoist I The equipment

Bypass brake Vibration damper

„ Second brake for increased safety „ Available for chain hoists STD 10 to STD 60
„ Identically dimensioned „ Minimises the vibrations produced by
„ During a breakdown, the second brake operating the chain hoist and transmitted
automatically takes over the function to the load chain via the chain sprocket
of the main hoist brake (polygon effect)
„ Second brake acts directly on the load,
i.e. bypassing the slipping clutch

Load display FMD1 slipping clutch test device

„ SLD four-digit 7-segment load display „ Robust full metal design

(Stahl Load Display), large format, „ Modern electronic test apparatus
luminous red, available with various with field-proven sensor technology,
interfaces including CAN. high degree of accuracy ± 2 %
„ Choice of 60, 100 or 150 mm digit height „ Test range up to 4,000 kg on one chain
„ No additional sensor is required fall, suitable for chains up to 11.3 mm
as the standard load sensor is used. link thickness
„ Protector for evaluation device and
internal test program
„ Simple intuitive handling
 Standard Options
Ambient temperature –20 °C to +40 °C to +50 °C
Protection to IEC/EN 60529 IP 55 IP 66
Paint Colour Greyish black/yellow-green All other colours from
RAL 7021/6018 RAL colour chart
D.F. T. 80 µm 120 µm to 240 µm
Paint Polyurethane topcoat Epoxy-resin base (240 µm)
Control pendants STH 1 control pendant with Radio remote control in pushbutton
EMERGENCY STOP palm button or joystick version
MOVEit one-hand control switch
Control Contactor control including main For crane manufacturers, contactor
contactor control without transformer and without
crane switch contactor

Direct control (ST 05 – ST 20)

Hoist motor control Pole-changing Frequency controlled
Travel motor control 50 Hz 20 m/min 2.5/10 m/min and 5/20 m/min
60 Hz 25 m/min 3.2/12.5 m/min and 6.3/25 m/min
pole-changing or frequency controlled
Motor supply voltage 50 Hz/ 60 Hz 380 – 415 V All voltages possible
ST 05 also 380 – 400 V or 415 V
Chain grade 8 to DIN 5684 Galvanised Stainless steel chain, off-standard chain
(hardened)
Safety factor > 5,0 –
Chain guide Grey cast iron EN GJS Sandwich chain guide made of
hardened spring steel plates
Chain box Plastic, textile Sheet steel
Load lifting elements Load hook in bottom hook block Thread bar, VAGH safety load hook
Galvanised load hook
Limit switches – Emergency hoist limit switch
(gear limit switch)
Travel limit switch – For up to four switching functions –
pre- and end limiting in both directions
of travel, carriage spacing

Overload cut-off Slipping clutch Load sensor

Signal transmitter – Horn, flashing light
Visualisation – SLD large-format load display, display
in control pendant, readable on PC
Data exchange – with PC
Cumulative load controller – SSC
Temperature control of travel motors – Ptc thermistors
Mechanical safety devices – Wheel arresters
Guide rollers for wide flange widths Guide rollers for narrow flange widths
dependent on trolley type
Support rollers for trolleys –
Hoist brake Monodisc spring-loaded brake with Manual release of hoist brake
asbestos-free brake linings
Bypass brake, double brake
Data recording – Operating hours counter
Panel box Plastic (Terluran 969 T) ST 10 – ST 60 sheet steel (S 235 JR)
16 I 17 The ST chain hoist

The Engineering

Engineering means innovation and individuality. Constantly redefining the

lifting and transporting of loads for complex requirements is a job for our
experts. Drawing on one of the widest product ranges of standard
components, they regularly develop modern, individual off-standard and
customised solutions. Hardly any other manufacturer of lifting and
The facts
crane technology can offer you this diversity of precisely designed top
quality customised solutions combined with maximum cost-effectiveness. „ Perfectly matched to your project
The modular ST chain hoist programme forms the basis for the most varied „ Every hoist is the result of
solutions. Compact construction, extremely low headroom, twin chain over 130 years of experience
hoists or multi-reeved chain hoists, STB Big Bag hoist, coupled chain hoists and expertise
for four-point load pick-up. Various trolleys are available for all chain „ Short development time
hoists. Customised system solutions individually adapted to your precise „ Cost-effective thanks to modular
requirements are our forte. The experience and knowledge gained system
from over 130 years of crane technology give us the flexibility to develop „ Technically mature thanks to the
and produce the optimum solution for your project in short time. use of field-proven standard
On request, all off-standard chain hoists and customised solutions are components
available in explosion-protected design for Zone 1, Zone 21 and Zone 22. „ High quality and reliability
ensured by in-house production
„ All customised solutions are
available as an option in explosion-
protected design complying
with ATEX and IECEx.
ST chain hoist with 30,000 kg load capacity The facts
This off-standard design comprising four ST 60 chain hoists from STAHL
„ Combination of four ST 60
CraneSystems is designed for the impressive load capacity of 30,000 kg and
chain hoists
is used on a maintenance crane in a metallurgy plant in New Caledonia.
„ 12/4-1 reeving
Loads in this range are normally lifted with wire rope hoists.
„ Load capacity 30,000 kg
Due to the extreme requirements such as restricted space, short approach
„ True vertical lift
dimensions, narrow track gauge and true vertical lift a solution with
„ Extremely short approach
wire rope hoists is not possible. The construction of chain hoists ensures
dimensions
true vertical lift, and they have extremely compact dimensions. This prompted
„ Track gauge 2,000 mm
STAHL CraneSystems’ engineers to develop an off-standard solution with
the robust ST 60 chain hoists. The chain hoists are cardanically coupled
in pairs ensuring that the hoists run in synch. They were reeved with twice
130 m robust chain with a deadweight of 700 kg. The multi-reeved chains
withstand maximum stresses. The chain hoists are disconnected in top and
bottom hook position by a gear limit switch. To provide increased safety,
the loads are continuously registered by load sensors which disconnect the
hoist at overload.
The hoist is mounted on an off-standard design double rail crab with specially
developed wheelblocks. With a track gauge of 2,000 mm and a wheelbase
of 1,660 mm its dimensions are extremely compact.
18 I 19 The ST chain hoist I The Engineering

STD dual chain hoist in series production system

STAHL CraneSystems’ engineers designed a cost-effective and reliable
overhead monorail system with semi-automatic control for an assembly
line. Eight STD dual chain hoists are used on a 93 m closed circular
The facts
runway to pick up 250 kg components and lift them in synch at two points.
The two-point load pick-up ensures that the load is transported safely „ Eight STD chain hoists with monorail
without swinging. trolleys
A buffer store of five trolleys carrying components is ready at the assembly „ Closed KT 2000 circular runway,
point. Attaching the loads at the loading station is activated manually by radio 93 m long
remote control. Lifting and transport to the buffer store are then automatic. „ Power supply via integrated
As soon as a new product arrives at the assembly line, the fitter calls for eight-pole conductor line
the components by radio remote control. The trolley moves into an unloading „ Radio control with redundant
station and automatically follows the assembly line at the same speed. infrared signal
The longitudinal position above the line can be corrected by accelerating or „ Travel speed synchronised with
braking the drive. Correcting the trolley position at right-angles to the assem- assembly line
bly line is possible on a movable skid with a path of 500 mm. Dangerous „ Chain hoist can be moved at
diagonal pull of the loads is thus prevented. right-angles to the runway on an
To increase process reliability, in addition to the radio signal an infrared signal off-standard skid
with limited reach is transmitted to the trolleys. Furthermore, a trolley
can exit the runway to a maintenance spur via a switch point and be serviced
there. The other dual chain hoists are not affected and continue to operate
without disturbance.
ST chain hoist for wind turbines
STAHL CraneSystems’ engineers developed an off-standard chain hoist
for maintenance work on wind turbines, specifically for raising spare parts
up into the nacelle.
The facts
The ST10 chain hoist with single-fall load chain is normally used for lifting loads
up to 500 kg. For the wind turbines, the ST10 chain hoist was designed „ ST10 chain hoist with 250 kg
with a load capacity of 250 kg. The resulting weight reduction permitted the load capacity
hoisting speed to be increased to 25 m per minute. 50 % time is saved „ Hoisting speed 25 m/min
compared with the standard speed of 12 m per minute. The temperature rise „ Height of lift 110 m
in the motor is correspondingly low. „ Larger chain box
The large chain box and the push trolley which can be locked in any position „ Elastic suspension for chain box
on the runway were developed especially for use in wind turbines. Further „ Pouch for control pendant
constructional details adapt the ST10 hoist optimally to the operating „ Push trolley can be locked in
conditions in wind turbines. An electric limit switch for top and bottom hook any position
positions prevents the load hook damaging the cladding of the tower. „ Additional mechanical fall
Many wind turbines are situated in offshore wind parks on the open sea. arrester for the chain box
STAHL CraneSystems offers chain hoists with off-standard paint, off-standard
materials and various adaptations for the rugged use in saline air.
20 I 21 The ST chain hoist

The explosion-protected ST ex chain hoist

ATEX
IECEx STAHL CraneSystems is known internationally as an
explosion protection specialist and is regarded as world
market leader in explosion protection technology.
The safety of people and machines in areas subject to
The facts
gas and dust explosion hazards is our top priority.
Here we make no compromises. As developer of „ Internationally leading specialist
numerous innovations in this field we have had palpable for explosion protection technology
influence on crane technology. Experience and know- „ The world’s first complete, most
how from many decades, our own fundamental research comprehensive chain hoist
and development, approvals from the Federal Physico- programme for Zone 1, Zone 21
Technical Institute (PTB) and other test institutes and Zone 22
in many countries underline our expertise. Hoisting „ Based on the ST chain hoist
technology from STAHL CraneSystems ranks among the „ Design and maintenance to ATEX
safest technology on the market in the chemical, and IECEx in certified quality
petrochemical and pharmaceutical industries, the food „ All equipment available in
processing industry, power supply, shipbuilding, explosion-protected design
offshore and natural gas liquefaction industries (LNG).
Without exception, the ST ex chain hoist programme is
based on the modular ST chain hoist programme.
All components of the explosion-protected chain hoists
come from our in-house production, from motor and
brake to controls and control pendant. For this ensures
the complete, high-quality explosion protection on
which users, crane manufacturers and system manu-
facturers all over the world have relied for decades.
The strict ATEX directives and IECEx regulations
on mechanical and electrical explosion protection are
of course met.

Use Category Protection against Explosion protection class

Zone 1 II 2 G Gas Ex de IIB T4 or Ex de IIC T4
Zone 21 II 2 D Dust Ex tD A21 IP 66 T 120 °C
Zone 22 II 3 D Dust Ex tD A22 IP 66 T 120 °C
 The ST ex chain hoist for Zone 22 is
available in six frame sizes up to a load
capacity of 6,300 kg.

The ST ex chain hoist

for Zone 1 and Zone 21
is available in two
frame sizes up to a load
capacity of 5,000 kg.
22 I 23 The ST chain hoist

The support

Quality right down to the most minor detail is the standard STAHL Crane-
Systems is committed to. Not only in the field of crane technology, but also
on the subject of support. You will find lifting and crane technology from
STAHL CraneSystems all around the world. Developed by engineers
and experts, manufactured with maximum care following our well-known
standard of quality. All around the world, many companies from various
fields have decided on maximum safety and quality, on products from
STAHL CraneSystems.
When it comes to sales, we are committed exclusively to capable, professional
crane manufacturing partners. You can expect optimum support from them
when your individual crane system with components from STAHL Crane-
Systems is at stake. Consulting and erection of a new system, system-oriented
testing and maintenance, modernisation, spare parts supply and training
courses. Together with our subsidiaries and crane manufacturing partners
we offer you perfectly coordinated support all over the world.
Spare parts – accessible right around the clock
Our own subsidiaries and numerous partners around
the world ensure reliable spare parts supply and expert
assistance in your area. Even decades after a series
has been discontinued, spare parts are available all over
the world right around the clock.

Training courses
We constantly keep our regional crane manufacturing
partners up to date with training courses, seminars
and information material. You too can profit directly from
our expertise. We impart practical and theoretical
knowledge in our own training centre or on your
premises. The seminars on offer in the form of individual,
basic and advanced courses cover all main product
groups. However we would also be pleased to match
a special programme to your individual specifications
and requirements.
You will find our current seminar programme at
www.stahlcranes.com/en/support

Factory service centre – in action all over the world

Our factory service centre is a service for our
customers: wherever you are we assist your crane
or systems manufacturer with our experience and
expertise whenever he needs us. Up-to-date diagnostic
apparatus and condition monitoring systems stand
by to support professional service and maintenance
work. Not only you, but your system, are in safe hands.
You can rely on us.
You will find our online service at
www.web.stahlcranes.com
and you can reach our factory service centre on
customer.service@stahlcranes.com
24 I 25 The ST chain hoist

The ST chain hoist in action

Experts in all countries immediately recognise hoists and

crane components from STAHL CraneSystems.
For the ST chain hoist is in action all around the world
in the most diverse variants and solutions. Innovative,
thought through down to the most minor detail and
manufactured with greatest care, the ST chain hoist
continues to conquer new areas of application. It thus
proves its well above average flexibility and cost-
effectiveness. STAHL CraneSystems is represented
on all continents by subsidiaries, sales and crane
manufacturing partners.

2 3
 1 An ST 20 explosion-protected chain hoist with a load capacity of
1,600 kg is used for outdoor maintenance work in a chemical plant.
The narrow construction of the explosion-protected chain hoist
enables the whole width of the crane bridge to be used. The travel
4 drives of the suspension crane endcarriages are also explosion-
protected.

2 Chain hoists of various models are used with single girder

suspension cranes in a sawmill in the Netherlands.

3 Only 210 mm high: the extra short headroom trolley makes optimum
use of the hook path in the low-ceilinged building of a plastics
casting factory in combination with the ST 50 chain hoist for a load
capacity of up to 5,000 kg. The headroom reduced by over 60 %
simultaneously increases the height of lift.

4 Two STD dual chain hoists with the aid of four synchronously
operating load hooks enable long goods weighing 10 tonnes to be
transported without swinging.

5 Two STD dual chain hoists ensure safe handling of heavy paper
reels in Büttenpapierfabrik Gmund. The STD dual chain hoist
is also suitable for low-ceilinged rooms thanks to its low headroom.

6 48 off-standard chain hoists operate in extremely high humidity

in a coating plant for the motor industry in China.
5

6
26 I 27 The ST chain hoist I The ST chain hoist in action

1 3

2 4
5

1 The robust ST 10 chain hoist with gear limit switch for top
and bottom hook position is used with a push trolley on a
curved runway

2 A light crane system with ST 05 chain hoists provides assistance

in the repair, maintenance and servicing of racing cars
6
3 The single-fall design of the ST 50 chain hoist permits fast
hoisting speeds for load capacities up to 2,500 kg. It is mounted
with a push trolley on a wall slewing crane.

4 Big Bag beams are lifted up to top hook position without

any hindering edges with the Big Bag design for load capacities
up to 3,200 kg.

5 Several ST chain hoists are used in England for the maintenance

6 and replacement of railway lines. All the chain hoists are equipped
with off-standard load pick-up equipment. The chain hoists are
centrally controlled to ensure that they operate in synch. They are
disconnected by gear limit switches which reliably limit the
hoisting process.
Picture 5: Rails being dismantled, the chain hoists have three-fall
reeving and a load capacity of 7,500 kg each.
Picture 6: Rails being loaded up.

7 A chain hoist with short headroom trolley is installed on a

single girder overhead travelling crane. It is used for
transporting fork-lift truck batteries to the charging station.
 Argentina Australia Austria Belgium Brazil Canada Chile China Columbia Croatia Czech Republic
Denmark Ecuador Egypt Estonia Finland France Germany Great Britain Greece Hongkong Hungary India Indonesia

Iran Ireland Israel Italy Jordan Latvia Lebanon Lithuania Malaysia Mexico
Netherlands Nigeria Norway Pakistan Peru Philippines Poland Portugal Rumania Russia

Singapore Slovakia Slovenia South Africa South Korea Spain Sweden Syria
Taiwan Thailand Turkey UAE Uruguay USA Venezuela Vietnam

Sales partners Subsidiaries

F-PB-1.1-EN(Zamil)-07.11-vis visuell.de
Head Office Branches

Eastern Morris Cranes Company Ltd. Eastern Morris Cranes Company Ltd. Eastern Morris Cranes Company Ltd. Eastern Morris Cranes Company Ltd.
Zamil Group Holding Zamil Group Holding Zamil Group Holding (Commercial Divison) Zamil Group Holding – LLC
P. O. Box 13793 IBN Haytham Street P. O. Box 12651 Al Hamra P. O. Box 251, Al Farazdaq Street P. O. Box 22162, Doha Qatar
8th Street 1st Industrial City Jeddah 21483, KSA Al Malaz, Riyadh 11411, KSA Industrial Area, Street 27, Gate 120
Dammam 31414, KSA Tel +966 2 6523232-115 Tel +966 1 4725555-5405 Tel +974 44600477-779
Tel +966 3 8473232-105 Fax +966 2 6523131 Fax +966 1 4725544 Fax +974 44600577
Fax +966 3 8472367
mail @emc.com.sa Eastern Morris Cranes Company Ltd. Eastern Morris Cranes Company Ltd.
P. O. Box 240 Zamil Group Holding – BCS
Jubail 31951, KSA P. O. Box 285, Manama, Kingdom of Bahrain
Tel +966 3 3416021 Tel +973 17369001
Fax +966 3 3418901 Fax +973 17727298