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Stackers

Fast, Effective and Reliable handling of bulk materials in a stockyard operation.

In any large-scale stockyard operation stackers play a key role as they deposit the bulk materials in pre-set patterns and systems. Stackers are available in a wide variety of configurations depending upon the required throughput and degree of mobility. They may feature a stacking belt that can be raised or lowered, single or twin booms, a semi or fully automatic control system, and other application-specific features. Fully automatic rail-mounted stackers, for example, are ideal for building up stockpiles for storage or blending beds.

Key benefits of our stackers in your stockyard operation

GBM stackers combine robustness, fast operation, and high throughputs. They are designed so the user enjoys the benefits of cost effectiveness, reliability, and eco-friendliness. To meet today’s increasingly strict environmental and safety requirements, GBM stackers are generally equipped with all the necessary precautionary equipment and systems to minimize the impact of noise, dust emissions, etc. on operators and the surroundings.

Luffing and slewing stacker

This is the most versatile type of stacker since it can slew from one stockpile to another on the other side of the yard, building uniform stockpiles on both sides of the yard feed conveyor. This stacker can build a stockpile in chevron, cone-shell, windrow or strata stockpiling modes. The machine can easily work in combination with each and every type of reclaimer on adjacent rail tracks, as the boom can slew to a position parallel to the rail track, thus allowing other machines to bypass it.

Luffing Stacker

A luffing stacker travels along the entire length of the longitudinal stockpile conveyor to build a stockpile on just one side of the conveyor. A luffing stacker is easy to operate and the most cost-effective solution for a stockpile on one side of the conveyor. Thanks to its simple structure it has fewer mechanical components than luffing and slewing stackers. However, only chevron and cone-shell stacking are possible with this type of stacker. Moreover, bypassing machines on adjacent rail tracks is more difficult as the boom cannot be slewed out of the way.

Combined circular stacker-reclaimer

A circular stacker-reclaimer, which is designed for 360° rotation, consists of a slewing and luffing stacker to stack the material, a reclaimer (portal, side or bridge type), and a central column, which includes a feed and discharge hopper. The stacking and reclaiming systems operate independently. Material is fed to the boom conveyor via an overhead feed conveyor.

Stacking Solutions

Stackers are high-capacity machines used for stacking and blending material. Working in two directions, a stacker can pile material onto two parallel stockpiles using a slewing and luffing boom. A rail-mounted stacker travels on two rails between the stockpiles. The stopping and starting sequence for the stacking operation is controlled either from the operator's cabin control panel or from a central control room.

Chevron stacking

Cone-shell stacking

Strata stacking

This method involves the stacker initially building a small pile at the center and along the full length of the stockpile. At the end of the stockpile the stacker is raised by a predetermined height to create a second layer on top of the initial pile by travelling along the rail in the opposite direction.

The cone-shell method involves a pile being formed by stacking the bulk material in a single cone at the center of the pile until the full height of the stockpile is reached.

The strata method stacks the bulk material in horizontal layers and creating alternat¬ing layers that enable different grades of the same bulk material to be reclaimed.

Circular Stacker/Reclaimer

In “endless” circular stockyards, the material is stored in a circle, or also referred to as a ring stockpile.

GBM provides the harbor crane with grab and the Equilibrium Crane for ship unloading, which is the typical technology.

Bridge Type Reclaimer

The continuous mode of operation helps reduce the environmental footprint. It allows for dust-free and low-noise operation

Bucket Wheel Reclaimer

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Stacker/Reclaimer

When stockpiling operations require stacking and reclaiming to be performed at the same time, separate machines are absolutely necessary

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Semi- Portal Scraper

In the GBM designed semi-portal scrapers, the portal spans a stockpile that has a lateral or peripheral retaining wall.

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Portal Scraper

The portal of an GBM portal scraper fully spans the stockpile. It rests on two opposite undercarriages.

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Side Scraper

Side scrapers consist of a scraper boom that can be raised and lowered, a counterweighted base frame, and a rail-mounted undercarriage.

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Slewing Scraper

The design of GBM slewing scrapers resembles the design of side scrapers. However, the scraper boom is connected with the slewing gear platform.

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Coal Pile

Longitudinal or circular stockpiles are used to mix or homogenise raw materials such as coal.

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Blending Bed

A blending bed is used for storage and homogenisation of raw materials such as limestone, clay, coal or mixtures of other bulk materials.

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GBM Stockyard Handling Systems

Discover our range of Stackers, Scrapers, Reclaimers and more for seamless operations.

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