# Roller Grinder

Roller-grinders have the ability to break down products to a consistent particle size without over-processing the material or creating too many unwanted ‘fines’ that diminish the quality of the finished product. The key difference between a roller-grinder and a roller-mill is that a roller-grinder has the ability to run each roll in a set at a different speed. This differential between the speed of the rolls creates a grinding action that is desirable for many applications.

## Roller-Grinder Features:

- Heavy-duty construction.
- Solid chilled iron rolls with heavy-duty 2-15/16” shafts.
- Spring protection designed to prevent damage to the rolls in the event that overly hard foreign matter makes its way into the mill.
- Variable speed feed roll.
- Hydraulic roll opener (choice of manual pump or electric hydraulic pump).
- Tapered roller bearings for improved bearing life.
- Removable plate magnets.
- Sample port.

**Single Roller-Grinder (one set of rolls)**

Roller-Grinder

Roller Size (diameter x length) | Capacity @ 2000 micron (ton per hour) | Motor Rated Power (hp) ^{[1]} | Mill Weight (lb.) ^{[2]} |
---|---|---|---|

9" x 12" | 8 | 1 - 7.5 | 900 |

9" x 18" | 12 | 1 - 10 | 1,400 |

9" x 24" | 16 | 1 - 15 | 1,850 |

9" x 30" | 20 | 1 - 20 | 2,560 |

9" x 36" | 24 | 1 - 30 | 2,800 |

HD Roller-Grinder

Roller Size (diameter x length) | Capacity @ 700 micron (ton per hour) | Motor Rated Power (hp) ^{[1]} | Mill Weight (lb.) ^{[2]} |
---|---|---|---|

12" x 24" | 10 | 1 - 20 | 3,200 |

12" x 30" | 12 | 1 - 25 | 4,250 |

12" x 36" | 14 | 1 - 30 | 4,600 |

12" x 42" | 17 | 1 - 40 | 4,950 |

12" x 52" | 21 | 1 - 50 | 6,400 |

**Double Roller-Grinder (two sets of rolls)**

Roller-Grinder

Roller Size (diameter x length) | Capacity @ 700 micron (ton per hour) | Capacity @ 800 micron (ton per hour) | Motor Rated Power (hp) ^{[1]} | Mill Weight (lb.) ^{[2]} |
---|---|---|---|---|

9" x 12" | 2 | 3 | 1 - 10 and 1 - 7.5 | 1,800 |

9" x 18" | 4 | 6 | 1 - 15 and 1 - 10 | 2,800 |

9" x 24" | 6 | 7 | 1 - 20 and 1 - 15 | 3,700 |

9" x 30" | 8 | 10 | 1 - 25 and 1 - 20 | 5,120 |

9" x 36" | 12 | 16 | 1 - 30 and 1 - 25 | 5,600 |

HD Roller-Grinder

Roller Size (diameter x length) | Capacity @ 700 micron (ton per hour) | Capacity @ 800 micron (ton per hour) | Motor Rated Power (hp) ^{[1]} | Mill Weight (lb.) ^{[2]} |
---|---|---|---|---|

12" x 24" | 12 | 14 | 2 - 25 | 6,400 |

12" x 30" | 15 | 18 | 2 - 40 | 8,500 |

12" x 36" | 20 | 25 | 2 - 50 | 9,200 |

12" x 42" | 25 | 30 | 2 - 60 | 9,900 |

12" x 52" | 30 | 40 | 2 - 75 | 12,800 |

**Triple Roller-Grinder (three sets of rolls)**

Roller-Grinder

Roller Size (diameter x length) | Capacity @ 500 micron (ton per hour) | Motor Rated Power (hp) ^{[1]} | Mill Weight (lb.) ^{[2]} |
---|---|---|---|

9" x 12" | 2 | 1 - 10 and 2 - 7.5 | 2,700 |

9" x 18" | 4 | 1 - 15, 1 - 10 and 1 - 7.5 | 4,200 |

9" x 24" | 6 | 1 - 20, 1 - 15 and 1 - 10 | 5,550 |

9" x 30" | 8 | 1 - 25, 1 - 20 and 1 - 15 | 7,680 |

9" x 36" | 12 | 1 - 30, 1 - 25 and 1 - 20 | 8,400 |

HD Roller-Grinder

Roller Size (diameter x length) | Capacity @ 500 micron (ton per hour) | Motor Rated Power (hp) ^{[1]} | Mill Weight (lb.) ^{[2]} |
---|---|---|---|

12" x 24" | 12 | 1 - 25, 1 - 20 and 1 - 15 | 9,600 |

12" x 30" | 15 | 1 - 40, 1 - 30 and 1 - 20 | 9,850 |

12" x 36" | 20 | 1 - 50, 1 - 40 and 1 - 30 | 13,800 |

12" x 42" | 25 | 1 - 60, 1 - 50 and 1 - 40 | 14,850 |

12" x 52" | 30 | 1 - 75, 1 - 60 and 1 - 50 | 16,500 |

**Quadruple Roller-Grinder (four sets of rolls)**

Roller-Grinder

Roller Size (diameter x length) | Capacity @ 400 micron (ton per hour) | Capacity @ 500 micron (ton per hour) | Motor Rated Power (hp) ^{[1]} | Mill Weight (lb.) ^{[2]} |
---|---|---|---|---|

9" x 12" | 2 | 3 | 4 - 7.5 | 3,600 |

9" x 18" | 4 | 6 | 2 - 15 and 2 - 10 | 5,600 |

9" x 24" | 6 | 7 | 2 - 20 and 2 - 15 | 7,400 |

9" x 30" | 8 | 10 | 2 - 25 and 2 - 20 | 10,240 |

9" x 36" | 10 | 12 | 2 - 30 and 2 - 25 | 11,200 |

HD Roller-Grinder

Roller Size (diameter x length) | Capacity @ 400 micron (ton per hour) | Motor Rated Power (hp) ^{[1]} | Mill Weight (lb.) ^{[2]} |
---|---|---|---|

12" x 24" | 12 | 1 - 25, 1 - 20 and 2 - 15 | 12,800 |

12" x 30" | 15 | 1 - 40, 1 - 30 and 2 - 20 | 17,000 |

12" x 36" | 20 | 1 - 50, 1 - 40 and 2 - 30 | 18,400 |

12" x 42" | 25 | 1 - 60, 1 - 50 and 2 - 40 | 19,800 |

12" x 52" | 30 | 1 - 75, 1 - 60 and 2 - 50 | 25,600 |

**Add-on Roller-Grinder (one set of rolls that attaches below existing mill)**

Roller-Grinder

Roller Size (diameter x length) | Capacity @ 500 micron (ton per hour) | Capacity @ 700 micron (ton per hour) | Motor Rated Power (hp) ^{[1]} | Mill Weight (lb.) ^{[2]} |
---|---|---|---|---|

9" x 12" | 2 | 3 | 1 - 7.5 | 900 |

9" x 18" | 4 | 6 | 1 - 7.5 | 1,400 |

9" x 24" | 6 | 7 | 1 - 10 | 1,850 |

9" x 30" | 8 | 10 | 1 - 15 | 2,560 |

9" x 36" | 10 | 12 | 1 - 20 | 2,800 |

HD Roller-Grinder

Roller Size (diameter x length) | Capacity @ 700 micron (ton per hour) | Motor Rated Power (hp) ^{[1]} | Mill Weight (lb.) ^{[2]} |
---|---|---|---|

12" x 24" | 10 | 1 - 20 | 3,200 |

12" x 30" | 12 | 1 - 25 | 4,250 |

12" x 36" | 14 | 1 - 30 | 4,600 |

12" x 42" | 17 | 1 - 40 | 4,950 |

12" x 52" | 21 | 1 - 50 | 6,400 |

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