The compact powerhouse

The AS 7 wire rope hoist programme is the innovative classic in hoisting and crane technology worldwide. The modular system enables innumerable combinations of the subassemblies for customised solutions.

The AS 7 series is designed in two variants for the upper lifting capacity range to 125,000 kg. The ASR 7 wire rope hoist is the reduced version of the tried-and-tested AS 7 wire rope hoist. It is designed for a safe working load range from 20,000 kg to 32,000 kg and closes the gap between efficient use of the SH wire rope hoist programme and the AS 7 wire rope hoist programme. The revised design as twin hoist covers the same fields of application as the AS 7 wire rope hoist, albeit with higher lifting capacities, greater lifting heights and faster lifting movements. One important safety feature of the AS 7 wire rope hoist when designed as twin hoist is its exact positioning of the load. As the rope of the twin hoist runs in opposite directions simultaneously, the load is lifted and lowered without any sideways movement of the hook.

If wanted, the complete wire rope hoist programme is also available in explosion-proof design for Zone 1, Zone 2, Zone 21 or Zone 22.

  • Two designs for load capacities up to 125,000 kg
  • Reduced-size ASR 7 for a safe working load range from 20,000 kg to 32,000 kg, with larger height of lift, standard with exact load measurement at the rope anchorage (entry-level model)
  • Innovative drive technology with cylindrical rotor motor with monodisc spring-loaded brake
  • Stationary version or double rail crab for systems and crane building, optionally available as underslung trolley or articulated trolley
  • Compact construction and low approach dimensions
  • Higher load capacity, hoisting speed and lifting height as twin hoist
  • Largely maintenance-free, low wear, long service life in acc. with ISO
  • Optionally available in explosion-proof design according to ATEX, IECEx
  • Two AS 7 wire rope hoists from STAHL CraneSystems on a double girder overhead travelling crane.

    In spite of its high lifting capacity, the AS 7 wire rope hoist with its double rail crab is surprisingly compact. The AS 7 is particularly suitable for high safe working loads to 80,000 kg or crane systems requiring a high ISO classification.

  • The twin hoist of an AS 7 in use on a coil crane.

    As twin hoist, the AS 7 ZW wire rope hoist enables a lifting capacity to 125,000 kg, higher lifting speeds and exact positioning without sideways movement of the hook.

  • Custom solution with AS 7 wire rope hoist on a monorail trolley underneath the crane bridge of a portal crane.

    The AS 7 wire rope hoist can also be operated as custom solution with a monorail trolley underneath the crane bridge.

  • The AS 7 wire rope hoist can be coupled to another type of wire rope hoist like, for example, an SH wire rope hoist for synchronous operation in tandem mode per radio remote control.

    The AS 7 wire rope hoist can be coupled to another type of wire rope hoist like, for example, an SH wire rope hoist for synchronous operation in tandem mode per radio remote control.

  • The AS 7 ZW on an off-standard crane in the steel industry.

    The AS 7 wire rope hoist is able to cope with rough conditions. In spite of high temperatures and dusty environments, the AS 7 ZW works reliably.

Models

The different models and trolley variants allow not only a wide variety of uses, but also very individualised solutions tailored to specific requirements.

  • Diagram of the AS 7  wire rope hoist from STAHL CraneSystems. It can be used as stationary hoisting or towing equipment (winch).

    Stationary model

    The AS 7 wire rope hoist can be used as stationary hoisting or towing equipment, for example in systems manufacture. Depending on the application, the rope lead-off angle, the attachment of the hoist and the mounting position of the hoist motor can be varied.

  • Diagram of the OE double rail crab from STAHL CraneSystems. It boasts a short approach dimension and short headroom.

    OE double rail crab

    The OE double rail crab is intended for use on double girder overhead travelling cranes. The extremely compact construction makes very low approach and headroom dimensions possible and the available space can thus be used to the full. The double rail crab is available with various track gauges for the whole load capacity range.

  • Diagram of an AS 7 wire rope hoist as twin hoist on a double rail crab.

    Twin hoist

    The AS 7 ZW wire rope hoist can also be used as stationary hoisting equipment or with the OE double rail crab.

  • Diagram of the AS 7 wire rope hoist as horizontal towing equipment (double acting winch) in systems building.

    Horizontal towing equipment in systems building

    The AS 7 wire rope hoist used as horizontal towing equipment in systems manufacture.

  • Diagram of the AS 7 wire rope hoist as vertical towing equipment (winch) in systems building.

    Vertical towing equipment in systems building

    The frequency controlled AS 7 wire rope hoist used bolted to the floor as vertical towing equipment in systems manufacture.

  • Diagram of the AS 7  wire rope hoist with guided load lifting.

    Guided load lifting

    The AS 7 wire rope hoist with guided load pick-up.

  • Grafik eines Seilzugs AS 7 ZW mit Zweischienenfahrwerk auf Zweiträgerbrückenkran.

    Double rail crab

    The AS 7 ZW wire rope hoist is mainly used with a double rail crab on double girder overhead travelling cranes.

  • Diagram with possible rope lead-off angles for the AS 7 wire rope hoist from STAHL CraneSystems.

    Rope lead-off angle

    Various rope lead-off angles are made possible by rotating the rope guide on the rope drum and setting the wire rope hoist up accordingly. The rope guide is adusted to suit the rope lead-off angle.

  • Diagram with possible angles of installation for the AS 7 wire rope hoist from STAHL CraneSystems.

    Angle of installation

    The AS 7 wire rope hoist can be mounted in various angle ranges. For rope drives with bottom hook block the wire rope hoist must always be installed with its longitudinal axis horizontal.

  • Three wire rope variants of a single-grooved rope drum with the reevings 1/1, 2/1 and 4/1

    Single-grooved rope drum (Standard reeving)

    The model with single-grooved rope drum is used for stationary hoisting or towing equipment or combined with various travel carriage variants.

  • Three wire rope variants of a double-grooved rope drum with the reevings 2/2, 4/2 and 8/2

    Double-grooved rope drum (True vertical lift)

    If true vertical lift is required, we recommend this model with double-grooved rope drum (right-/left-hand thread). This version can be used both in stationary form or with travel carriages.

  • Two wire rope variants of a double-grooved rope drum with multipoint load attachment with the reevings 2/2-2 and 4/2-2

    Double-grooved rope drum (Reeving for multiple load pick-up points)

    The model with double-grooved rope drum (right-/left-hand thread) is used for many lifting and towing tasks where the load must be picked up at more than one point and true vertical lift is required.

  • Two wire rope hoist variants of a twin hoist without sideways movement of the hook with the reeving ZW 4/2-1 and ZW 8/2-1

    Twin hoist (Reeving for true vertical lift)

    Independent of the grooving of the rope drum, stable guiding of the hook and precise positioning of the load are guaranteed.

Type Load capacity up to [kg] Standard reeving Reeving for true vertical lift Statio­nary OE double rail crab
ASR 7 32,000 4/1 0
AS 7 45,000 10/2-1 0
AS 7 50,000 2/1, 4/1 2/2, 4/2, 8/2 0
AS 7 80,000 6/1 0
AS 7 ZW 125,000 ZW 4/2-1, ZW 6/2-1, ZW 8/2-1, ZW 10/2-1 0
Standard

Technology

  • Diagram of the AS 7 wire rope hoist and its technical assembly.

    The AS 7 wire rope hoist programme boasts superior technology. The largely maintenance-free components of the modular wire rope hoist are matched to each other optimally. They guarantee constant performance, long service life and high efficiency.

  • Close-up of the rope guide ring on a rope drum with rope.

    Rope and rope guide

    • Highly flexible special rope with long service life
    • Field-proven enclosed rope guide in spheroidal graphite cast iron has no temperature limitations
    • The GJS material (previously designated GGG 40) is suitable for highest and lowest temperature ranges
    • 360° rope tensioner, avoiding the formation of slack rope
  • Parts of an AS 7 wire rope hoist painted green and black.

    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
    • Shade as per customer’s requirement
  • The load sensor is located at the suspension point of the load rope.

    Overload cut-off

    • Permanent electronic monitoring of the suspended loads
    • Limitation of the maximum load by load measurement at the rope anchorage possible in the case of multiple reeving
  • High-quality toothed wheels are used in the gear of the AS 7 wire rope hoist.

    Hoist gear

    • „All gear steps with lifetime lubrication in oil bath
    • Minimal noise development thanks to modern technology
  • Open AS 7 wire rope hoist switch box shows the controls and motor management components.

    SLE/SMC control and motor management

    • Condition monitoring as standard
    • Inching operation is suppressed thus reducing stress
    • All common control voltages available
    • High degree of safety thanks to overdimensioned contactors
    • Monitoring of the temperature of the hoist motor and travel motor
  • Brake with fan wheel on the hoist motor of an AS 7 wire rope hoist.

    Brake

    • Low-maintenance asbestos-free brake; needs no adjustment
    • Long service life thanks to generously dimensioned brake
    • Brake easily accessible for inspection from outside
    • Motor management ensures low wear
    • IP 65 protection
  • Hoist motor of the AS 7 wire rope hoist.

    Motor

    • Special-purpose motor for hoisting applications
    • Classified according to FEM (ISO), high duty cycle and switching operation frequency
    • IP 55 protection, thermal class F
    • Motor outside rope drum, highly efficient motor cooling, maintenance-friendly
    • Temperature control by ptc thermistors
  • Yellow hook block with rope drive.

    Rope drive

    • Optimised ratio of drum to sheave diameter ensures low wear on rope
    • Flexible and long-lived wire rope
    • Wear-resistant return sheaves, fine machining provides rope-friendly grooves in rope drum
    • Drum easily accessible for rope replacement
    • Robust bottom hook block with low headroom in spite of large dimensioning of hook

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.

  • Red control pendant with EMERGENCY STOP pushbutton.

    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.
  • Three different radio remote control units as pushbutton units and a joystick transmitter with controller.

    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
  • Gear-type limit switch in control box

    Emergency hoist limit switch (gear limit switch)

    • In standard version, the hoist is equipped with a gear limit switch for top and bottom hook position and an operational limit switch for top hook position.
    • As an option, up to eight switching elements can be fitted to the switch. This permits for example further stopping positions and operational limiting in bottom hook position.
  • SMC multi-controller for permanent load monitoring

    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
  • Large-format load indicator with luminous red digits.

    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.
  • Various visual signallers.

    Signal transmitters

    • Visual and acoustic signal transmitters such as horn and flashing light can be mounted on travel carriages.
    • The signal transmitters can be activated by a button on the control pendant.
  • Manual venting of the hoist brake of an AS 7 wire rope hoist from STAHL CraneSystems.

    Manual release of hoist brake

    • The brake release device permits the hoist brake to be released manually and thus the load to be lowered during a power cut.
    • As an option, every hoist can be equipped with this supplementary equipment to the standard brake.
  • Close-up of a rope drum brake

    Rope drum brake

    • Redundant brake system provides increased safety
    • Intercept and holding brake, prevents the load falling even if the gear should break
    • Control is effected with a centrifugal switch or safety PLC
  • Frequency inverter “Lift” for soft starting and braking

    Frequency inverters for “lifting”

    • Smooth starting and braking characteristics
    • Load swing greatly reduced
    • Fast, precise positioning of the load, corrective switching operations rarely necessary
    • The reduced dynamic load means a longer service life for hoist motor and gear and reduces stress on the whole system.
    • ESR function (Extended Speed Range) for higher hoisting speeds with partial load
    • Worldwide approvals for all frequency inverters
    • Certified in compliance with DIN ISO 9001
  • Frequency inverter “Drive” for soft starting and braking of cross and long travel movements

    Frequency inverters for “cross/long travel”

    • Simple to install, parametrise and operate
    • Standard speed range 1:10, up to 1:30 as an option
    • SPS compatible to super-ordinate systems (optional)
    • All internationally customary mains voltages are available
    • Also available in design for installing in panel box
  • Diagram of the TDC Twin Drive Concept
    • Prevents sagging of the load even when the gearbox fails
    • Permanent brake, drive and load monitoring
    • Two synchronously controlled hoist motors and brakes
    • Two manually releasable brakes for emergency lowering
    • Robust, completely encapsulated system
    • Service and safety brake of identical design
    • Up to 60 % higher load capacities when transporting non-molten metals

Download

Brochure

The AS 7 wire rope hoist

28 pages

08.2018

Flyer

The new STx chain hoist

6 pages

03.2018

 

Product information

Wire rope hoists – SH, AS

216 pages

07/2018

Product information

Wire Rope Hoists Ex – SH, AS

196 pages

05.2015 | Rev. 04.2016

Cutaway view

The wire rope hoist AS 7

1 page

07.2015

Poster

The wire rope hoist AS 7

80 x 60 cm

07.2015

More information

The SH wire rope hoist from STAHL CraneSystems is one of the best hoists in the world. Field-proven thousands of times, equipped for every application, low-maintenance and with a tremendously long service life. Perfect crane technology from Germany.

SH wire rope hoist

The all-rounder for safe working loads to 25,000 kg. Modular in design, individually adaptable, for highest demands.

 SH wire rope hoist

Strong winches for high performance even under extreme conditions. Compact, durable and economical.

SHW 8 winch

Strong winches for high performance even under extreme conditions. Compact, durable and economical.

 SHW 8 winch

STAHL CraneSystems makes no compromises when it comes to the manufacture of explosion-proof wire rope hoists: own research and development, own production and international approvals. And more than 140 years’ experience.

Explosion-proof wire rope hoists | winches

Certified according to ATEX and IECEx for Zone 1, 2, 21 or 22.

 Explosion-proof wire rope hoists | winches

The TDC Twin Drive Concept TDC meets all requirements set by DIN EN 14492-2 for transporting molten metal. Wire rope hoists with TDC are suitable for use in foundries and chemical plants.

Twin Drive Concept TDC

Redundancy for highest safety, e.g. in transport of molten metal. Manufactured on the basis of our standard series.

 Twin Drive Concept TDC

The LNG hoists from STAHL CraneSystems were developed specifically for the maintenance of LNG plants. Their redundant design provides twofold safety in potentially explosive atmospheres.

LNG wire rope hoists

The engineering solution for liquefied natural gas trains and LNG terminals in four safety levels.

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A series of ST chain hoists are used in England for maintenance and replacement of railway tracks.

Engineering

Technicians develop individual custom and off-standard solutions from one of the largest product ranges available.

 Engineering