LTL Utility Supply
STK Chain Hoist
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The STK extra short headroom trolley sets new standards. The construction of the short headroom trolley alone saves a tremendous amount of space. The body of the chain hoist is mounted at an angle, meaning that no return sheave is required, thereby allowing a 33 % reduction in headroom. With its headroom reduced by 60 %, the extra short headroom trolley achieves, by contrast, maximum hook paths. The distance from the underside of the beam to the bed of the hook is just 210 mm at a load capacity of 5,000 kg and even just 185 mm at a load capacity of 3,200 kg. The patented chain drive with two separate, but synchronised chains is unique. The load is lifted and positioned exactly without swinging or vibration.
The STK extra short headroom trolley sets new standards. The construction of the short headroom trolley alone saves a tremendous amount of space. The body of the chain hoist is mounted at an angle, meaning that no return sheave is required, thereby allowing a 33 % reduction in headroom. With its headroom reduced by 60 %, the extra short headroom trolley achieves, by contrast, maximum hook paths. The distance from the underside of the beam to the bed of the hook is just 210 mm at a load capacity of 5,000 kg and even just 185 mm at a load capacity of 3,200 kg. The patented chain drive with two separate, but synchronised chains is unique. The load is lifted and positioned exactly without swinging or vibration.
The chain hoists are also available in explosion-proof design for Zone 1, Zone 21 and Zone 22.
Extensive chain hoist range for lifting capacities from 125 kg to 6,300 kg
Suspension directly from the chain guide of solid cast iron
Easy inspection and maintenance of the chain drive thanks to overmounted drive shaft
Extremely short and compact construction ensures that space can be utilised to the maximum
High standard classification in accordance with ISO
Modern Kanban production, available fast
Available as an option in explosion protected design complying with ATEX and IECEx
Models
The different models and trolley variants allow not only a wide variety of uses, but also very individualised solutions tailored to specific requirements.
Push trolley
In standard version, the ST 05 and ST 10 1/1 chain hoists are suspended by eye or hook from the smooth-running push trolleys. A rigid connection with the chain hoist is possible on request. This rigid connection is standard in the ST 20 to ST 60 chain hoists. The push trolley does not affect the low headroom of the hoist. Optional wheel arresters make your workplace safer.
DKE articulated trolley
The articulated trolley is available for frequent travel around bends and narrow radii. Depending on radius of bend, runway flange width or application it is equipped with one or two travel motors. The lateral guide rollers cause minimum wear. The articulated trolley is designed for load capacities up to 6,300 kg.
“Standard headroom” electric trolley
Not one millimetre was given away in the design in order to enable large hook paths even at standard headroom.
“Short headroom” electric trolley
The smooth-running electric trolley can also be combined with the ST short headroom chain hoist, reducing the headroom by a further 33 %.
STK short and extra short headroom trolley
The construction of the short headroom trolley itself saves a tremendous amount of space. The body of the chain hoist is mounted at an angle, meaning that no return sheave is required. This reduces the headroom by 33 %. The extra short headroom trolley with its headroom reduced by 60 %, by contrast, achieves maximum hook paths, which is particularly beneficial in extremely low-ceilinged rooms. It fully deserves its name. The extremely short distance from the underside of the beam to the bed of the hook is just 210 mm at a load capacity of 5,000 kg and even just 185 mm at a load capacity of 3,200 kg.
The STD dual chain hoist
The STD dual chain hoist is ideal for long material and lifting beams that need to be picked up at two points. It is equipped with two load chains, which are moved synchronously by a hoist motor. There are various versions of the STD dual chain hoist available for different requirements and space situations.
STB Big Bag design
The Big Bag version is designed for load capacities up to 3,200 kg. Its special feature is the free choice of the distance between chain hoist and load hook which makes lifting bulky loads or Big Bags up to top hook position possible without hindering edges such as trolley, chain hoist or chain box.
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.
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.
Technology
The ST chain hoist programme boasts superior technology. The low-maintenance components of the modular chain hoist are optimally matched to each other. They guarantee constant performance, long service life and high efficiency.
Motor
High standard classification in accordance with ISO (FEM)
Powerful motors with high duty cycle and number of switching operations
Standard fan cooling
Single-speed and four-pole versions are available as options
Optional temperature control by thermistor
Brake
Low-maintenance, asbestos-free electromagnetic disc brake
Oversized braking torque
Long service life, brake pad status can be checked and measured
Brake completely enclosed, protected from humidity, vapours and dusts from the exterior; ensuring long-term reliable operation
Chain drive
Innovative patented chain drive
Anchorage and load-bearing components are directly integrated into the high-tensile grey cast iron
Simple inspection and replacement of the chain sprocket thanks to over-mounted shaft bearing
Enclosed 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
Control
All customary connecting and control voltages are available
Plug connection of control pendant and travel motor
Clear arrangement of contactors
As an option, available with direct control
As an option, available without control pendant and/or contactor control
Paint
Standard paint treatment as per RAL 6018 yellow-green and RAL 7021 greyish black
High-quality primer and top coats for standard applications
Off-standard paint treatment for outdoor use or corrosive ambient conditions
Other colours per RAL chart optionally available
Overload slipping clutch and gear
The slipping clutch of the ST 10 to ST 60 is located in the oil bath.
Easily adjustable from the exterior
Precise response
No electronic limiting necessary
Various gear reductions available
Oversized helically geared gearbox
Chain
Surface-hardened, galvanised and large dimensioned load chain
High case depth for long service life
High ISO classification
Stainless steel load chains are available as an option
Chain box
Large selection of chain boxes in plastic, sheet steel or textile
Available without chain box as an option
Options and features
Although they are already first-class in their standard design, you can make the hoists even safer, more economical and more convenient with a range of mechanical, electrical and electronic options. They simultaneously improve performance, prolong service life and make it possible to adapt the hoist individually to specific requirements.
Here are some of the options frequently used.
Control pendants
Robust control pendant with EMERGENCY STOP palm button and control cable
All switching elements for hoist, cross and long travel are 2-step.
IP 65 protection
Additional buttons, for example to activate a horn, can easily be fitted.
Optional load display. All data displayed can be read out on a notebook with the aid of the SMC Multicontroller.
Radio remote control units
Pushbutton unit with belt clip, optionally with signal feedback from the crane
Joystick transmitter with controller and carry strap
Automatic battery chargers with interchangeable batteries
Robust plastic housing, IP 65 protection
Works in the 2.4 GHz frequency range.
Other radio remote control units on request
SMC Multicontroller
Continuous load monitoring by overload cut-off even if hoist is at a standstill
Overload protection with ALC automatic load control
Load spectrum memory for load-related operating time summation
Monitoring of the motor temperature of the hoist motor and travel motor
Operating data registration, e.g. operating hours, load spectrum, motor switching operations and load cycles
Data exchange with PC possible
Travel limit switch
Travel limit switches on trolley/crab for cross travel, optional
Limiting for both directions of travel
Switchover from “fast/slow” (predisconnect)
Switch contacts designed for control current
IP 66 protection
Operational hoist limit switch
Two versions are possible: cut-off in top hook position or cut-off in top and bottom hook position (stationary, push trolley, electric trolley)
Activated by the bottom hook block
Gear-type limit switch
Various functions possible: e. g. routine operational cut-off in highest or lowest hook position or switching from “fast” to “slow” before the stops.
IP 55 protection, optionally IP 66
Spring-steel chain guide
Heavy high-tensile chain guide for rugged use
Enclosed chain guide
Extremely wear-resistant case-hardened chain sprocket
Bypass brake
Second brake for increased safety
Identically dimensioned
Second brake acts in force transmission directly on the load, i. e. bypassed the slipping clutch.
Load display
SLD four-digit 7-segment load display (Stahl Load Display), large format, luminous red, available with various interfaces including CAN.
Choice of 60, 100 or 150 mm digit height
No additional sensor is required as the standard load sensor is used.
FMD1 slipping clutch test device
Robust full metal design
Modern electronic test apparatus with field-proven sensor technology, high degree of accuracy ± 2 %
Test range up to 4,000 kg on one chain fall, suitable for chains up to 11.3 mm link thickness
Protector for evaluation device and internal test program
Simple intuitive handling