MC-266 and B-66T regrind to colored mulch MC-266 and B-66T regrind to colored mulch

Diesel Horizontal Grinders

Rotochopper diesel grinders deliver colored landscape mulch, animal bedding, compost and other products with precision grinding and unmatched versatility.

Precision Grinding

Our diesel horizontal grinders deliver “Perfect In One Pass” simplicity for diverse feedstocks, including wood waste, agricultural residue, and organic waste.

Streamlined Operation

Rotochopper diesel grinders are the only portable grinding systems that let operators quickly switch raw materials while maintaining strict product specifications.

Diesel Horizontal Grinders

Full Spec Comparison

Select a machine to find the right diesel grinding solution for your raw materials.

B-66Grinder

  • UP TO 1050HP
  • 65-95,000lbs
  • 66" x 36" Throat Opening
  • Diesel Engine

Our largest and most versatile grinder, the B-66 offers high volume precision grinding capacity for a broad range of feedstocks.

Full Machine Details

FP-66Grinder

  • UP TO 630HP
  • 57,000lbs
  • 66" x 26" Throat Opening
  • Diesel Engine

The FP-66 offers high-volume grinding features for companies that need “Perfect In One Pass” efficiency with mid-range horsepower.

Full Machine Details

MC-266Grinder

  • UP TO 540HP
  • 43,000lbs
  • 66" x 18" Throat Opening
  • Diesel Engine

The MC-266 is a highly portable yet full-featured grinding solution that brings “Perfect In One Pass” convenience for diverse feedstocks.

Full Machine Details

MP-2Grinder

  • UP TO 350HP
  • 26,500lbs
  • 56" x 18" Throat Opening
  • Diesel Engine

Highly compact and portable, the MP-2 offers standard features you wouldn’t expect from grinders of any size, like an on-board colorizer.

Full Machine Details

B-66Grinder

Our largest and most versatile grinder, the B-66 offers high volume precision grinding capacity for a broad range of feedstocks.

Full Machine Details

Featured Specifications

UP TO 1050HP 65-95,000lbs 66" x 36"Throat Opening Diesel Engine

Exclusive Technology

Grind & Color System

This patented system injects colorant directly into the grinding chamber to produce mulch with the right size, texture, and color.

Replaceable Mount Rotor

Simple yet rugged, this patented rotor lets operators quickly swap tooth mounts without special tools—just two bolts per mount.

Track & Dolly System

It’s the best of both worlds: crawler tracks to navigate your worksite, plus a removable dolly to streamline highway transport.

Advantages

High-Volume Precision Grinding

The B-66 combines high throughput capacity with “Perfect In One Pass” simplicity for colored mulch, animal bedding, and other products.

Simplified Maintenance

The B-66 maximizes your uptime productivity with time-saving features like our patented screen changer and replaceable mount rotor.

Unmatched Versatility

No other grinder offers this level of versatility to quickly switch between diverse feedstocks while maintaining precise product control.

FP-66Grinder

The FP-66 offers high-volume grinding features for companies that need “Perfect In One Pass” efficiency with mid-range horsepower.

Full Machine Details

Featured Specifications

UP TO 630HP 57,000lbs 66" x 26"Throat Opening Diesel Engine

Exclusive Technology

Grind & Color System

This patented system injects colorant directly into the grinding chamber to produce mulch with the right size, texture, and color.

Replaceable Mount Rotor

Simple yet rugged, this patented rotor lets operators quickly swap tooth mounts without special tools—just two bolts per mount.

Track & Dolly System

It’s the best of both worlds: crawler tracks to navigate your worksite, plus a removable dolly to streamline highway transport.

Advantages

Precision Grinding

The FP-66 is designed to optimize horsepower efficiency without sacrificing versatility or precision product control.

Simplified Maintenance

Engineered through customer feedback, the FP-66 streamlines routine maintenance and limits downtime to maximize your productivity.

Unmatched Efficiency

The FP-66 sets the standard in mid-sized grinders for efficiently converting a broad range of feedstocks into premium products.

MC-266Grinder

The MC-266 is a highly portable yet full-featured grinding solution that brings “Perfect In One Pass” convenience for diverse feedstocks.

Full Machine Details

Featured Specifications

UP TO 540HP 43,000lbs 66" x 18"Throat Opening Diesel Engine

Exclusive Technology

Grind & Color System

This patented system injects colorant directly into the grinding chamber to produce mulch with the right size, texture, and color.

Screen Changer

This patented system lets a single operator swap screens at ground level without special tools, fasteners, or overhead lifting equipment.

Slab Ramp

Simple to adjust, this patented system offers unique control for pliable feedstocks to maintain steady grinding without overfeeding.

Advantages

Precision Grinding

The first machine capable of simultaneously grinding and coloring, the MC series remains a trusted choice for demanding end products.

Simplified Maintenance

The MC-266 maximizes uptime productivity with time-saving features like our hydraulic screen changer and StopWatch monitoring system.

Unmatched Portability

The MC-266 packs our “Perfect In One Pass” end product control into a highly portable grinder available on tires or crawler tracks.

MP-2Grinder

Highly compact and portable, the MP-2 offers standard features you wouldn’t expect from grinders of any size, like an on-board colorizer.

Full Machine Details

Featured Specifications

UP TO 350HP 26,500lbs 56" x 18"Throat Opening Diesel Engine

Exclusive Technology

Grind & Color System

This patented system injects colorant directly into the grinding chamber to produce mulch with the right size, texture, and color.

Screen Changer

This patented system lets a single operator swap screens at ground level without special tools, fasteners, or overhead lifting equipment.

Slab Ramp

Simple to adjust, this patented system offers unique control for pliable feedstocks to maintain steady grinding without overfeeding.

Advantages

Precision Grinding

With the MP-2, we’ve cut the weight and size without cutting the “Perfect In One Pass” simplicity that defines the Rotochopper brand.

Simplified Maintenance

The MP-2 offers fast, easy access to the grinding chamber and all maintenance points, along with time-saving features that limit downtime.

Unmatched Maneuverability

Compact enough to tow with a two-ton truck, the MP-2 sets up in minutes to produce colored mulch, compost, and other commodities.

B-66 diesel horizontal grinder processing round wood for fine texture fiber.B-66 diesel horizontal grinder processing round wood for fine texture fiber.

“Perfect In One Pass”

Rugged and reliable, Rotochopper diesel horizontal grinders have set industry standards for more than 25 years. Our diesel powered grinders, from 275–950 HP, transform your wood waste into profitable end products.

Rotochopper FP-66 grinding pallets to biomass fuelRotochopper FP-66 grinding pallets to biomass fuel

Unmatched Versatility

From logs & whole trees to pallet scrap and sorted C & D, Rotochopper has a solution for your grinding business, including technology for high-abrasive materials like asphalt shingles or yard waste. These innovations allow you to diversify your grinding operation with simplicity and efficiency, maximizing the value of your grinding equipment.

Rotochopper sales and service with customersRotochopper sales and service with customers

Simplified Maintenance

Packed with exclusive maintenance simplifying features, Rotochopper grinders keep you in control of your end product specifications and your production schedules. Changing teeth and screens is fast and easy. Routine maintenance areas are designed for quick access. Spend less time on maintenance and more time turning raw materials into commodities.

“The ability to make the right particle size is absolutely essential to our profitability and growth as a company. We’ve never seen anything that beats Rotochopper on particle size control.”

—Patrick Whittlesey, Austin Landscape Supplies

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