MechMaxx B150 6-Inch Drum Wood Chipper - 14HP Electric Start KOHLER – 4 Wheel Towable (110804)

Heavy-Duty 6-Inch Wood Chipper with KOHLER Command PRO Engine, Electric Start & 4-Wheel Design

Take on demanding tree cleanup, land clearing, and wood chipping projects with the MechMaxx B150 6-Inch Gas Powered Drum Wood Chipper. Powered by a reliable 14 HP, 429cc KOHLER Command PRO CH440 gasoline engine, this heavy-duty wood chipper is designed to process branches and woody material up to 6 inches in diameter.

Built for professional landscapers, tree care specialists, property owners, and equipment rental businesses, the B150 combines powerful drum-style cutting performance with the convenience of electric starting and a versatile four-wheel chassis.

Its large 13.8-inch cutting drum, two reversible steel blades, and heavy-duty belt drive work together to provide efficient wood chipping performance. The 360-degree rotating discharge chute allows operators to direct wood chips where needed, while the integrated emergency stop controls and maintenance safety interlocks provide additional operator protection.

For convenient transportation, the B150 features two large DOT-approved rear tires, foldable front support wheels, integrated taillights, a 7-pin trailer connector, and a 2-inch tow coupler.

Whether you're maintaining a wooded property, clearing storm debris, or handling professional landscaping projects, the MechMaxx B150 KOHLER Wood Chipper delivers an excellent combination of dependable engine power, cutting capacity, and worksite versatility.

Key Features & Benefits

• Reliable 14 HP KOHLER Command PRO Engine: Powered by a 429cc KOHLER CH440 gasoline engine designed for demanding commercial and residential outdoor power equipment applications.

• Up to 6-Inch Chipping Capacity: Designed to process branches and woody material up to 6 inches in diameter, making it ideal for tree trimming, property maintenance, and storm debris cleanup.

• Convenient Electric Start: Equipped with an electric starting system and a 12V, 20Ah lead-acid battery for easier engine startup.

• Heavy-Duty Drum Cutting System: Features a large 13.8-inch cutting drum that provides rotating momentum to help process larger branches and woody debris.

• Two Reversible Double-Edged Cutting Blades: Durable A8 steel blades feature two usable cutting edges to help extend blade service life before replacement.

• 360-Degree Rotating Discharge Chute: Direct wood chips toward a collection area, trailer, or mulch pile without constantly repositioning the chipper.

• Versatile Four-Wheel Configuration: Features two large rear tires and two foldable front support wheels for convenient machine positioning and transportation.

• Foldable & Lockable Front Wheels: Front wheels can be lowered for worksite positioning and folded upward during towing.

• Integrated Taillights & 7-Pin Trailer Connector: Allows the chipper's trailer lights to connect to a compatible towing vehicle for brake light and turn signal operation.

• 2-Inch Trailer Coupler: Provides a connection point for compatible towing equipment.

• 48-Inch Wheelbase: Wide rear wheel spacing helps support machine stability during transportation and positioning.

• Dual Emergency Stop Controls: Includes an emergency stop button and a lower press bar near the feed chute for convenient emergency access.

• Automatic Safety Interlocks: Designed to shut down the engine when the feeding or discharge chute is opened.

• Easy Maintenance Access: Hinged feed and discharge chutes feature convenient latches for cleaning, blade inspection, and routine servicing.

• Heavy-Duty Dual Belt Drive: Features two Kevlar V-belts and a centrifugal clutch to transmit engine power to the cutting drum.

• KOHLER Quad-Clean Air Filtration: The Command PRO engine features a four-stage cyclonic air filtration system designed to provide engine protection in dusty working environments.

• EPA & CARB Listed: Manufacturer specifications identify EPA Phase III and CARB Phase III certifications.

• 2-Year Machine & 3-Year Engine Warranty: Backed by a two-year manufacturer's machine warranty and a three-year KOHLER engine warranty, subject to applicable warranty terms.

Powerful 14 HP KOHLER Command PRO CH440 Engine

At the heart of the MechMaxx B150 is the KOHLER Command PRO CH440 gasoline engine, designed to deliver dependable power in demanding outdoor equipment applications.

With 429cc displacement, a single-cylinder four-stroke OHV design, and air-cooled construction, the CH440 provides the power needed for heavy-duty wood chipping.

The KOHLER Command PRO series includes several features designed to support long-term engine performance and durability.

Engine Highlights:

• KOHLER Command PRO CH440 engine

• 14 HP published horsepower rating

• 429cc engine displacement

• Single-cylinder, four-stroke OHV design

• Air-cooled gasoline engine

• Electric starting system

• 12V, 20Ah lead-acid battery

• Quad-Clean four-stage cyclonic air filtration

• Heavy-duty forged-steel crankshaft

• Cast-iron cylinder liner

• Electronic ignition system

• Three-year limited engine warranty

Heavy-Duty 6-Inch Drum Cutting System

The MechMaxx B150 features a robust drum-style cutting system designed to handle branches and woody material up to 6 inches in diameter.

The cutting drum measures approximately 13.8 inches in diameter and uses its rotating mass to help maintain cutting momentum while processing branches.

Two double-edged, reversible steel blades work with a fixed anvil to break down incoming wood into manageable chips.

The blades are manufactured from durable A8 (5Cr8MoVSi) steel and can be reversed when one cutting edge becomes worn, helping extend usable blade life.

Cutting System Highlights:

• Maximum rated chipping diameter: 6 inches

• Heavy-duty drum cutting system

• 13.8-inch cutting drum

• Two reversible, double-edged steel blades

• One fixed anvil

• A8 (5Cr8MoVSi) blade steel

• Two Kevlar V-belts

• Centrifugal clutch drive

• Published 20:1 reduction ratio

Four-Wheel Design for Convenient Transport & Worksite Positioning

The MechMaxx B150 features a versatile four-wheel chassis designed to make transporting and positioning the chipper more convenient.

Two large rear tubeless tires support the machine during towing, while the smaller front support wheels help operators position the chipper around a worksite.

The front wheels feature a foldable and lockable design. During towing, they fold upward. When positioning the machine at a worksite, the wheels can be lowered and locked to assist with movement.

Transportation Features:

• 2-inch trailer tow coupler

• Two 19 x 7.00-8 rear tubeless tires

• Two 13 x 5.00-6 front support tires

• DOT-approved rear tires

• 48-inch wheelbase

• Foldable and lockable front wheels

• Integrated trailer taillights

• 7-pin trailer electrical connector

• Heavy-duty steel chassis

The integrated lighting system connects to a compatible towing vehicle and supports synchronized brake light and turn signal operation.

360-Degree Rotating Discharge Chute

The B150 is equipped with a fully rotating upper discharge chute that allows operators to direct chipped material toward a desired collection area.

Whether you're producing mulch, creating a wood chip pile, or directing material toward a suitable collection trailer, the adjustable discharge chute offers flexibility without constantly repositioning the machine.

The chute features formed and welded construction and can be opened for maintenance access to the cutting chamber.

Discharge Chute Benefits:

• Full 360-degree rotation

• Flexible wood chip discharge direction

• Convenient collection-area positioning

• Hinged opening for maintenance access

• Heavy-duty construction

• Easier cleaning and blade inspection

Operator Safety & Easy Maintenance

The MechMaxx B150 incorporates several important safety and maintenance features designed to improve operator convenience.

Emergency Stop Button: Located above the feeding chute for quick access during operation.

Emergency Stop Press Bar: Located along the lower portion of the feeding chute to provide an additional emergency shutdown control.

Feed Chute Safety Interlock: Designed to shut down the gasoline engine if the feeding chute is opened.

Discharge Chute Safety Interlock: Designed to shut down the engine when the discharge chute is opened.

Hinged Maintenance Access: Both the feeding and discharge chutes feature convenient latches to simplify access for cleaning, blade inspection, and replacement.

Product Specifications

Ideal Applications

The MechMaxx B150 6-Inch Wood Chipper is designed for a variety of demanding outdoor applications, including:

• Professional tree trimming and branch disposal

• Residential and commercial property maintenance

• Landscaping and tree care businesses

• Storm debris and fallen limb cleanup

• Woodland and acreage management

• Land clearing and vegetation cleanup

• Producing wood chips for landscaping and mulch

• Farm, ranch, and large-property maintenance

• Municipal grounds maintenance

• Equipment rental businesses

Frequently Asked Questions

What is the maximum branch diameter the MechMaxx B150 can handle?

The MechMaxx B150 is rated to chip branches and woody material up to 6 inches in diameter. Actual chipping performance depends on wood species, moisture content, branch shape, and overall material condition.

What engine powers the MechMaxx B150?

The B150 is powered by a KOHLER Command PRO CH440 gasoline engine with 429cc displacement and a published 14 HP rating. The engine features a single-cylinder, four-stroke OHV design.

Does the MechMaxx B150 have electric start?

Yes. The B150 features an electric starting system powered by a 12V, 20Ah lead-acid battery for convenient engine startup.

What is the difference between the MechMaxx B150 and B200 wood chippers?

The B150 is rated for branches up to 6 inches in diameter and uses a 14 HP KOHLER CH440 engine.

The B200 models offer an increased 8-inch chipping capacity and are available with higher-displacement gasoline engines, including the B200 Honda GX690 and B200 ZONSEN GB1000.

Both models feature drum cutting systems, electric starting, four-wheel configurations, and rotating discharge chutes.

Can the MechMaxx B150 be towed?

The B150 features a 2-inch tow coupler, rear DOT-approved tires, integrated taillights, and a 7-pin trailer electrical connector.  The front wheels fold upward for towing. Operators must follow the manufacturer's towing instructions and applicable road-use regulations.

Does the B150 have a rotating discharge chute?

Yes. The B150 features a 360-degree rotating discharge chute, allowing operators to direct wood chips toward a desired collection area without repositioning the entire machine.

Are the B150 cutting blades reversible and replaceable?

Yes. The B150 uses two reversible, double-edged steel blades that can be serviced or replaced as needed.  The reversible blade design helps extend blade service life by providing a second cutting edge.

What type of cutting system does the B150 use?

The B150 features a drum-style cutting system with a 13.8-inch cutting drum, two reversible steel blades, and one fixed anvil.  A centrifugal clutch and two Kevlar V-belts transfer engine power to the cutting system.

What safety features are included?

The B150 includes an emergency stop button, an emergency stop press bar, and safety interlocks designed to shut down the engine when either the feeding or discharge chute is opened.

What type of fuel and engine oil does the B150 use?

The manufacturer specifies clean, fresh, unleaded gasoline and recommends 10W-30 engine oil.

Refer to the KOHLER CH440 engine owner's manual for complete lubrication requirements, maintenance intervals, and recommended operating procedures.

How much does the MechMaxx B150 weigh?

The B150 has a published net weight of approximately 573 pounds and a gross shipping weight of approximately 639 pounds.

Does the MechMaxx B150 require assembly?

The B150 ships in a protective plywood shipping case and is supplied with manufacturer assembly instructions. Some assembly and pre-operation preparation may be required before first use.

What warranty comes with the MechMaxx B150?

The MechMaxx B150 includes a two-year limited manufacturer's warranty on the machine and a three-year limited warranty on the KOHLER engine.  Warranty coverage is subject to the manufacturer's applicable terms, conditions, and exclusions.

Manuals & Documentation 

B150 Product Manual

Kohler B150 Manual

B150 Assembly Guide

MechMaxx 6-Inch Wood Chipper Comparison