Rotochopper grinding solutions convert a wide range of feedstocks into premium end products with “Perfect In One Pass” simplicity.


Through our commitment to “Perfect In One Pass” equipment solutions, we continue to develop new innovations for challenging grinding applications.


Our factory-direct customer support team provides world-class service and expert guidance to keep your grinding operation running at peak performance.


Through our commitment to customer success, we lead the industry in innovation, developing several industry firsts, patented features, and unique machines.



The B-66 L-Series horizontal grinder has raised the bar as the most advanced fiber processing system on the market. This grinder is designed to meet the needs of grinding larger, more abrasive feedstock materials and has been engineered to increase overall production rates with unmatched efficiency.

b66l horizontal grinder outline image

The B-66L is designed to tackle the toughest grinding applications, including land clearing, orchard removal, and waste with its high torque motors, aggressive powerfeed and infeed design.

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Featured Specificaitons

UP TO 1050HP
Icon/Weight 97,000 - 102,000 lbs.lbs
Icon/Opening 66" x 38" Throat Opening
Icon/Diesel Diesel Engine

Exclusive Technology

Track & Dolly System
Seamlessly transition from highway transport to work site navigation in minutes with the Gen II Dolly.

Replaceable Mount Rotor
The rugged 24 tooth rotor with 2” thick drum lets operators quickly swap tooth mounts without special tools.

Screen Change System
Change screens at ground level with no need for overhead lifting equipment, fasteners, or special tools.


Aggressive Powerfeed Design
A newly designed aggressive powerfeed pulls materials into the grinding chamber with ease.

Lower, Longer Infeed Hopper
Grinding larger, more challenging feedstocks with the B-66L is effortless due to the lower, longer, and less drag infeed hopper.

RotoLink Monitoring System
Troubleshoot with customer support in real-time, predict maintenance needs, and reduce downtime.

B66L land clearing Mankato18-1
“Today’s world requires the ability to execute change with laser focus to meet your customer’s changing needs and wants. When you sell direct to end users, you have the unique advantage to listen, adapt, change and innovate through customer feedback. The new B-66 L-Series launch required extensive R&D, data evaluations, engineering assessments and most important, customer partnerships. The new heavy-duty machine will compete on a world-class market platform.”

— Art de St. Aubin, Rotochopper President/CEO

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Ready to learn how the B-66 L-Series grinder can increase your production rates?
Contact us for more information.

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