Mobile Stacking Bridges

Mobile Stacking Bridges (MSBs) are mobile dumping or stacking machines that are suitable for fast advancing dumps with small dump heights for deep and high cast operations.

MSBs are flexible and efficient conveying and dumping machines that can be employed across a wide range of conveyable material types and capacities. They consist of several, up to 100 m long, straight connected bridge segments with separate single or double crawlers for mobility and a single bridge belt conveyor. Material is conveyed along the bridge and then dumped by a short, slewable and, if required, liftable discharge boom which is integrated in a tripper car traveling across the entire bridge length.

MSBs are able to make circle-shaped dumps in a slewing mode operation or alternatively rectangular-shaped dumps in a parallel mode operation. With a retractable discharge boom, it is possible to dump both a low (max. height per geotechnical and safety requirements) and high cast (up to 8 m high) at the same time.

TAKRAF stacking bridges with total lengths between 300 m and 500 m are currently operating in Chile and Mauritania (500 m³/h to 5,000 m³/h).

References

  • Customer
    Project Name
    Leach pad stacking & reclaiming system Gaby
    Codelco
    Gaby
    2007

    Leach Pad Stacking & Reclaiming System Gaby

    The application of mobile stacking bridges (MSB) is not restricted to operate on ON-OFF heap leach systems. The biggest advantage of the crawler mounted mobile stacking bridge is the continuous operation without interruptions (downtimes) to shift or relocate. MSBs are designed with a minimized number of bridge segments with the advantages of:

    • less crawler units, less maintenance, less complex equipment control (leveling),
    • reduced operating expenses,
    • more reliable structural design according to fatigue loads (bolted instead of welded). A retractable tripper stacker conveyor allows dumping on both sides of the bridge (low and high cast operation).

    Project figures

    8,300 t/h ; 5,200 m³/h
    409 m
    5
    6
    13 m
    6 m
    tbd (according to geotechnical/safety requirements)
  • Customer
    Project Name
    Proyecto Antucoya
    Minera Antucoya Ltda
    Atacama Desert / Northern Chile
    2015

    Heap Leach Stacking System with Mobile Stacking Bridge and Cross Conveyor

    TAKRAF supplied the copper ore leaching system consisting of the agglomeration plant, the on/off leach pad, as well as the waste disposal facility.

    The Mobile Stacking Bridge (MSB) forms part of the stacking and reclaiming system for the on/off heap leach pad.

    The application of MSBs is not only restricted to operating across on/off heap leach systems and the technology can be applied across a wide range of areas. The most significant advantage of the crawler mounted MSB is its ability to operate continuously without interruption and do not require any downtime to shift or relocate.

    MSBs are designed with a reduced number of bridge segments which provide the following advantages:

    • Fewer crawler units being required which results in lower overall costs, decreased maintenance and decreased equipment control (leveling) complexity
    • Reduced operating expenses
    • Increased structural design reliability according to fatigue loads (bolted instead of welded). A retractable tripper stacker conveyor allows dumping on both sides of the bridge (low and high cast operation)

    Project figures

    6288 tph, 4057 m³ph
    353 m
    5
    6
    5 m
    11 m
  • Customer
    Project Name
    Dry Tailing Stacking & Conveying System Guelb II
    SNIM
    Iron Ore Processing Plant Zouérat / Mauritania
    2015

    Dry Tailing Stacking & Conveying System Guelb II

    The application of mobile stacking bridges (MSB) is not restricted to operate on ON-OFF heap leach systems. The biggest advantage of the crawler mounted mobile stacking bridge is the continuous operation without interruptions (downtimes) to shift or relocate. MSBs are designed with a minimized number of bridge segments with the advantages of:

    • Fewer crawler units being required which results in lower overall costs, decreased maintenance and decreased equipment control (leveling) complexity
    • Reduced operating expenses
    • Increased structural design reliability according to fatigue loads (bolted instead of welded). A retractable tripper stacker conveyor allows dumping on both sides of the bridge (low and high cast operation)

    Project figures

    +/- 45°
    20m/ 15m
    880 tph, 489 m³ph
    490 m
    6
    7
    7 m
  • Efficiency

    • We're able to provide a wide selection of machines ranging from total lengths of 300 m to 500 m or more and with capacities ranging from 500 m3/h to 5,000 m3/h
  • Technical Excellence

    • Our machines are able to dump circle-shaped dumps in a slewing mode operation or rectangle-shaped dumps in a parallel mode operation

CONTACT US

Do you have any questions or would you like further information?
We look forward to your inquiry at: info@takraf.com

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