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CBI 6400CT Horizontal Grinder and Chipper

Heavy-duty track-mounted horizontal grinder for processing contaminated demolition debris, whole trees, storm debris, slash, and stumps.

The CBI 6400CT portable downswing horizontal wood grinder is a very versatile grinder because of its four interchangeable rotors. As part of CBI’s powerful fleet of horizontal wood grinders, the CBI Magnum Force 6400CT provides the flexibility to process an exceptionally wide variety of materials and generate the end products your clients demand—all with a single machine.


Operators can transform this whole tree grinder into a machine built for grinding contaminated demolition debris just by swapping the rotor and screen(s). The rotor options available with this horizontal grinder are as rugged as they come. The solid steel rotor, with (20) 6”x8” striker plates, is ideal for grinding contaminated railroad ties, municipal solid waste, and demolition debris. If you’re in the market for forestry debris and mulch processing, the forged drum rotor with 4” hammers and reversible tips is your best option.

The CBI 6400CT horizontal grinder can also be converted to a whole tree chipper by installing a 2-pocket or 4-pocket chipper rotor. The 2-pocket rotor features two rows of knives for chip lengths of ¾” to 1 ¼”. This is for producing fuel chips from stemwood. The 4-pocket chipper rotor has four rows of knives for chip lengths of 1/16” to ½”. The four-pocket chipper rotor produces wood microchips from stemwood suitable as feedstock for producing wood pellets.

CBI understands the difficult and unpredictable pace of grinding materials across the forestry, construction, biomass and waste energy industries. That’s why the CBI 6400CT and other horizontal grinders from CBI are designed and manufactured with only the most durable and consistent components possible. Service-friendly features including its clamshell design that offers full-access for maintenance and a direct line to lifting and remove screens. Clearly, this is not your typical industrial tree grinder.

Customers can chip logs up to various size chips at rates up to 200 tons per hour thanks to its extensive power unit. The portable CBI 6400CT is powered by one of three diesel CAT engines up to 1,050 HP. All diesel engine options come equipped with an extra-large radiator featuring a Flexxaire Auto-Reversible Fan for automated cleaning, a PT Tech hydraulic clutch with pump drive, and a CAT Air Filtering System with Enginaire Pre-Cleaners.

Like any CBI horizontal wood grinder, the CBI 6400CT does not compromise quality in any design aspect. From contaminated railroad ties to the toughest trees and stumps, this horizontal grinder is ready to expand your processing opportunities.

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Check out the CBI 6400CT Horizontal Grinder and Chipper in action!


Performance Highlights


  • 60″ wide infeed conveyor (15′ in length)
  • High ground clearance
  • AR 450 construction
  • CAT 27 1050 HP engine
  • Ready to accept optional discharge overband magnet
  • Metal detection system to protect rotor, anvil and screens
  • 600 mm triple grouser track
  • IQAN electric hydraulic controls
  • Forged 40″x60″ downswing rotor
  • Various hammer inserts




Fully welded and line bored hog box

The hog chamber is a heavy-duty reinforced housing with 100% continuous welds, providing maximum corrosion resistance, and the ultimate rigidity and strength.

Split hog box

The grinding chamber rises, allowing full access to the rotor and hog box internals for ease of maintenance. The service area has been expanded to provide an open, safe, and ergonomic work environment for service techs.

Interchangeable rotors

The CBI 6400CT features four different swappable rotors to accommodate changing materials and processing demands. The solid steel rotor is designed for grinding contaminated demolition debris, railroad ties and MSW. While the forged drum rotor is designed for forestry debris, mulch and hog manufacturing and the 2- and 4-pocket chipper rotors are used for the production of fuel chips.

Metal Detection System (MDS)

The Metal Detection System (MDS) on the 6400 horizontal grinder engages within milliseconds whenever the grinder’s rotor makes contact with tramp metal. The rotor is monitored by an adjustable electronic sensor to alert the control system when tramp metal is detected. It will automatically raise the top feed roller and reverse the infeed to allow the operator to find the tramp metal.”


Why CBI?



Industry leader

Terex® CBI, part of the wider Terex group, is an industry leader in the design and manufacturing of wood processing, biomass, and recycling equipment. CBI’s tradition of quality runs through complete lines of horizontal grinders, industrial wood chippers, flail debarkers, screens, stacking conveyors, stationary systems, and attachments.


Outproduce. Outperform. Outlast.

Since 1988, CBI machines have been purpose-built to outproduce, outperform, and outlast anything in the market. Diverging from the pack of sorely inadequate wood grinders, CBI completely reimagined the value curve by producing the ultimate workhorses for unmatched production.


State-of-the-art Technologies

CBI started with the design of the CBI Grizzly Mill with its patented, extremely rugged offset-helix rotor that uses kinetic energy in order to consume less power while aggressively outperforming anything on the market in terms of throughput. This technology became the basis for product lines like Grizzly Mill® wood waste hogs, Magnum Force® horizontal grinders, and Magnum Force® chippers. From this technology, CBI grew into one of the premier wood grinder and wood chipper manufacturers in the United States and around the world.

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