Crumblers

Crumblers are Roller Mills specially designed for breaking up pellets into smaller particles. Usually the crumbler consists of two corrugated rolls situated below the cooler/drier exit. The pellets can then be diverted into the crumbler, if crumbles or granules are desired, or they can by-pass it. Crumblers provide an unsurpassed level of ground surface and subsurface finishing action. Crumblers can be used as attachments to our chisels, thus leveraging the value of the chisel tillage tool’s field application through a better prepared soil surface, improved crop residue breakdown and decomposition and improved pre-irrigation, all on one pass.

Crumblers

Features

• Heavy duty debris shields to protect bearing seals
• Exclusive use of tapered fabricated beams for superior strength
• Spiral flighting coupled with larger diameter for smooth operation and improved rotation.
• Fixed star teeth which provide significantly greater forces on clods
• Timed teeth for maximum single tooth pressure
• Simple bolt on teeth provide for easy replacement without disassembling entire roller. Grower only needs to purchase tooth sections and not *pipe or the cost of welding together.
• When using the optional down pressure kit, down forces pressure on clouds can by doubled, thus further improving clod break up.

Components

Roll adjust

• Manual hand wheel • Air-actuated - two position • Full feature

Feeder

• Roll feeder with lever gate • Rotary pocket feeder • Surge panels

Gate Actuator

• Air-actuated - two position • Air-actuated - three position • Full feature • Manual handwheel

Advantages

• Optimum utilization of the feedstuff by the animal
• Prevention of feather picking
• Easy product flow in the dry-feeder
• Possibility of obtaining the form of crumbles, also in case of products which are difficult to pellet with high energy value (fat)
• Saving of energy by combining pelleting and crumbling
• Specific adjustment of size of crumbles

Operation Principles

The pellets are fed continuously over the total width of the crumbler by means of the discharge device of the cooler or an additional feeding device. Fluted rolls of different speeds crush the pellets into the predetermined size. Due to the kind of the roll fluting and the different speeds only few fines are produced, which are recycled into the pelleting press after screening.

The changing of the spring pretension takes a certain influence on the granular size of the crumbled product. Furthermore one roll can avoid foreign matters which may be introduced.

The rolls are driven with varying speeds.