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Drum-Hole Groove Roller Shell

Drum-hole groove roller shell are one of the primary working components for pellet press roller , which is used to process different kinds of biomass pellet fuel, feed pellet, wood pellet and so on. Outer diameter: 220mm Inner diameter: 130mm Width: 88mm (Custom dimensions and drawings of...

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Drum-hole groove roller shell are one of the primary working components for pellet press roller , which is used to process different kinds of biomass pellet fuel, feed pellet, wood pellet and so on.


Outer diameter: 220mm Inner diameter: 130mm Width: 88mm (Custom dimensions and drawings of drilled roller shells are welcome. )

Surface processing form: open corrugated(open slotted)

Material: 50# alloy steel,42CrMo,etc

Hardness: HRC 58-62

Service life: more than 1000 hours



Feature of drum-hole groove roller shell 

  1. Roller shell, made of wear resistant alloy raw material, processed by fine and heat treatment;

  2. Made of bearing steel, high hardness, good wearing resistance, long life, different tooth depth and shape at option;

  3. Tooth surface forms of roller shell, good to pelleting performance

  4. Frequently-used roller shell tooth form:honeycomb,scallop shape and scallop shape with edge banding

  5. Honeycomb,scallop shape, the two types of roller shell is mainly used in livestock and poultry feed pelleting.

  6. The advantage of honeycomb rolller shell is the even wearing of ring die, but coil performance is bad.

  7. Scallop-shaped roller shell features good coil performance, widely used among feed mills, but wearing of ring die is not even. 8. Scallop shape with edge banding, this kind of roller shell is applicable for aqua feed. Feed is not easy to slide towards both sides when being extruded. 



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