Combined Stacker / Reclaimers
Combined stacker / reclaimers can operate as stackers or as reclaimers. They can stock material in stockpiles and reclaim them with a bucket-wheel at the boom tip.
TAKRAF combined stacker / reclaimers with bucket-wheel boom are primarily employed where medium or large or very large material flows are to be stacked and then later reclaimed by the same machine. Our typical machines cover the following flow rates and sizes:
- Stacking and reclaiming capacity: 500 t/h to 20,000 t/h
- Rail gauge: 6 m to 20 m
- Boom length: 25 m to 60 m
Our machines are all specifically designed to our client's requirements and incorporate various solutions according to their specific application.
Fixed Rocker Arrangements for Low or Medium Flow Rates
In applications involving low or medium flow rates and/or medium length booms, machines in which the bucket-wheel and counterweight boom are combined in a fixed rocker arrangement are generally preferred. This arrangement results in a reduced number of articulation points.
An integral part of the machine is the tripper car and integrated conveying system which transports material to the bucket-wheel boom and then to the stockpile. The tripper car and conveying system is often equipped with a "bypass function" that enables material to bypass the boom and continue along the conveyor system.
Pantograph Arrangements for Higher Flow Rates
Where higher flow rates and/or longer boom lengths are required, we prefer a machine design in which the bucket-wheel and counterweight boom are combined in a pantograph arrangement. The pantograph arrangement ensures that with large boom loads, small changes in the point of balance are stabilized, which has a significantly positive impact on machine steadiness. A drawback with this design however is the increased number of articulation points.
Semi-Automated and Automated Machines
The majority of our combined bucket-wheel boom machines are semi-automated; however, there is a growing trend towards full automation and we are able to supply fully automated machines too. These machines incorporate further control systems and sensor logic and are controlled and monitored from a central control station.
Customer Project Name Wanino SUEK Russia Coal terminal Wanino 2009
Bucket wheel stacker/reclaimer for coal
This machine is part of a complex stockyard system delivered completely by TAKRAF. It is designed for very low temperatures from -42 °C up to +39 °C.
coal 47.5 m 3,500/3,500 t/h 10 m
Customer Project Name Sishen Kumba Iron Ore (a division of AngloAmerican) Sishen iron ore mine, Northern Cape Province 2004
Bucket wheel stacker/reclaimer for iron ore
This machine is part of a complex stockyard system delivered completely by TAKRAF. It is designed for very low temperatures from -38°C up to +40°C.
iron ore 47 m 3,710/6,250 t/h 10 m
Customer Project Name Pavlodar AO Aluminium Kazakhstan Aluminium plant Pavlodar 2010
Bucket wheel stacker/reclaimer for bauxite
This stacker/reclaimer was a replica of a machine built by TAKRAF in the 1980s. All mechanical and electrical equipment was updated for the new machine.
bauxite 36 m 700/500 t/h 7.5 m
- We design, fabricate and supply a wide-range of machine capacities from 500 t/h to 20,000 t/h with boom lengths ranging from 25 m to 60 m
- Our machines can be specified as fully automated and thus work in the absence of an operator through a variety of sensors and are controlled from a central control point
- For large conveyance applications, we prefer a pantograph construction for our machines which increases machine stability
ReclaimersA variety of different machine types can be employed to reclaim stacked material from stockpiles. Typical machines range from bridge-type bucket-wheel reclaimers to boom-type bucket-wheel reclaimers and drum reclaimers.
Scraper ReclaimersFor a fully automatic operation of bulk storages TAKRAF is offering their field-proven scraper reclaimer technology.
StackersStackers are bulk stockpiling machines that are used to stack material in stockyards in different shapes according to specific requirements. A stacker’s function is to stack or pile material on to a stockpile for later reclamation and use - a reclaimer is generally used to reclaim or recover the stockpiled material.