Features
- Maximum capacity, versatility, and transportability
- Heavy-duty PTO with shear bolt
- High carbon steel rolls
- Fatigue proof shafts
- One roll turns faster to prevent plugging and increase capacity

Harkness Equipment is built on experience, reliability, and a commitment to agriculture. We offer quality equipment, honest service, and support you can count on.
If we don’t carry it, we’ll help you find it.
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| Choose a PTO driven roller mill from Automatic Equipment and use your tractor for high-speed, livestock grain processing on a trailer. Our PTO driven, trailer mounted roller mills are perfect for farmers who prefer to use their existing tractor equipment over an electric mill. When you need to get a vast amount of work done with the minimum investment in time and energy, Automatic Manufacturing’s large capacity PTO trailer mills are the perfect fit for the job. |
High Capacity Roller Mills Up To 6,300 Bushels Per Hour |




