1. Spreaders

Spreaders

Spreaders are designed as single-boom spreaders, 2-conveyor compact spreaders or conventionally designed spreaders with a rope-suspended discharge boom for deep and high cast operations.

Spreaders are mobile continuous operating dumping machines receiving the material from the shiftable dump bench conveyor via a tripper car or from mobile transfer conveyors. The main parts of a spreader are the receiving boom with or without support crawler track, the superstructure, the sub-structure with crawler tracks and the discharge boom. Determined by operational requirements the discharge boom can be fixed, liftable or slewable.

The spreader is able to dump a low cast, which will be the travel plateau for one of the following dumping blocks, and a high cast on the other side of the shiftable dump bench conveyor. The main design criterion is the length of the discharge boom, determined by the required dumping height and block width as well as by the material properties meeting safety requirements (stability of the dump itself, safety of the equipment on dump).

TAKRAF offers spreaders of compact design or large spreaders with long discharge booms for high and safe dumps. The capacity ranges up to 20,000 m³/h. The length of the discharge boom can reach 195 m as built for a cross pit spreader for Russia.

Cross pit spreaders are part of a highly efficient direct dumping system. They receive the material directly from a bucket wheel/chain excavator. The discharge boom of those spreaders reaches over the open pit and transfers the material directly onto the dump site.

Our cross pit spreaders operate in Russia (8,800 m³/h, 195 m boom length) and Hungary (5,200 m³/h, 165 m boom length).

  • Efficiency

    Efficiency

    • We're able to provide a wide range of machines ranging from single-boom spreaders, to two-conveyor compact spreaders, conventional spreaders and cross-pit spreaders
  • Safety

    Safety

    • Design and selection of spreader is determined by the relevant operating conditions (e.g. the properties of the dumped material) and relevant operational, geotechnical and safety requirements

Download Open Cast Mining Brochure

References

  • Customer
    Project name
    Spreader A2Rs (H).5220.55
    Southern Peru Copper Corporation
    Toquepala mine – leach pad
    2005

    Toquepala Mine – Leach Pad, Peru

    The spreader was designed to dump a massive leach pad in the irregular deep valleys close to the Toquepala pit. The upstream feeding equipment consists of an extendable and relocateable belt conveyor with a mobile head station on crawlers, a 60 m wheel driven Grasshopper and a 150 m long mobile conveyor bridge. The spreaders total length of 160 m guarantees a wide range of dumping before the upstream equipment needs to be relocated. The spreaders superstructure can be leveled against the crawler undercarriage to dump steep ramps. The 95 m long spreader intermediate bridge is supported on the spreaders superstructure and on a second double crawler for a total independent operation of the spreader.

    Project figures

    5,220 m³/h
    95 ± 2.5 m
    55 m
    15 m
    up to 100 m
    1,828 mm
    ~120 kPa

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