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Agglomeration Drums

All FEECO agglomeration drums are designed according to the needs of your unique process goals and the characteristics of the material to be processed. Agglomeration drums are an ideal solution for high-capacity agglomeration operations, or when agglomeration needs to be combined with a chemical reaction, such as in the production of granular fertilizers.


Agglomeration drums work by tumbling material in a rotating drum in the presence of a binding agent. The binding agent causes the fines to become tacky and allows them to pick up additional fines, forming agglomerates in a process referred to as coalescence. The tumbling action helps to round the agglomerates and create a homogenous mixture.



  • Size: Drum Diameters from 36″ – 15′ (1 – 4.6m)
  • Capacity: 500 lb/hr – 3500+ TPH
  • Efficient Bed Turning/Flight Designs
  • Robust design and construction, according to the highest quality specifications
  • Various material options
  • Various liner options
  • Various Drive Assemblies Available





Our custom designs can also easily accommodate the addition of other equipment and accessories such as pipe reactors, discharge trommel screens, spray bars, and spargers. If you need to control emissions or dusting, FEECO’s discharge breeching design makes capturing these materials easy, so you don’t have to worry about contamination of the surrounding area.


Optional Components

  • Spray Systems
  • Various Liner Options
  • Machined Bases
  • Screw Conveyor Feeder
  • Automatic Gear Lubrication System
  • Variable Speed
  • Variable Slope
  • Variable Frequency Drive (VFD)


Unitized Drive Base

All FEECO agglomeration drums utilize our unitized drive base. The drive system is mounted on an adjustable, one piece drive base, which is bolted down to a sole plate resting on custom leveled mounting pads. Adjustment screws are included to easily adjust the entire drive base, avoiding the hassle of having to realign each component separately. This results in quicker installation, savings in labor, and increased gear/sprocket life.


FEECO is capable of meeting the requirements necessary for CE marking equipment.

Automated with Rockwell Automation

All FEECO equipment and process systems can be outfitted with the latest in automation controls from Rockwell Automation. The unique combination of proprietary Rockwell Automation controls and software, combined with our extensive experience in process design and enhancements with hundreds of materials provides an unparalleled experience for customers seeking innovative process solutions and equipment.

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What Can Agglomeration do for Your Material?

Agglomeration offers a variety of benefits. Among them, agglomeration allows you to:

  • Reduce Volume
  • Stabilize Mixtures During Handling
  • Eliminate/Reduce Dust Problems
  • Control Hardness
  • Reduce Packing, Storage and Transport Costs
  • Improve Product Performance
  • Improve Handling

To learn more about how agglomeration can benefit your material, see Why Agglomerate Your Material.

Agglomeration Drum Components and Parts

A Discharge Breeching

B Outlet to Exhaust Handling System

C Riding Ring/Tire

D Ring Gear Guard

E Raw Material Feed Chute

F Drive Assembly

G Liner

H Graphite Block Lubrication Assembly

I Trunnion Wheel

J Riding Ring

K Thrust Roller Assembly

L Pillow Block Bearing

M Trunnion Guard

Applications & Materials

Agglomeration Drums (also known as balling drums, rotary drum agglomerators, rotary granulators, or rotary drums) are very versatile pieces of equipment that can process a wide variety of materials. Our heavy-duty rotary drums are the ideal piece of equipment for high-capacity applications. They are also frequently used when an agglomeration – chemical reaction process is required. Agglomeration drums are commonly used in the following ways:

  • Heap Leaching/Ore Beneficiation (Ore Drums) For the agglomeration of ore fines such as gold, silver, nickel, and copper
  • GranulationFor the granulation of both organic and inorganic fertilizers
  • Coating – For creating premium products with superior performance and handling characteristics
  • Conditioning For materials such as potash, phosphate rock, and more
  • Balling For the agglomeration of iron ore fines in the steel-making process


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