YARDBEAST 4.5″ Wood Chipper Shredder (4521)

SKU: 4521
  • $6,999.99
  • Save $400

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Detailed Specifications:

  • Model Number: 4521 – 4.5″
  • Engine: Kohler Command Pro CH640 20.5HP
  • Fuel: Gasoline
  • Electric Start: Yes
  • Wood Diameter: 4.5 Inches
  • Feed Type: Gravity
  • Rotor: 1 Blade
  • Towable: Yes
  • Tire Size: 205/65-10 DOT
  • Warranty: Engine- 3 years, Chipper 2 years

What’s Included:

  • All Steel fabricated Yardbeast 4521 4.5″ Wood Chipper.
  • A Kohler® Command Pro 20.5HP CH640 that provides plenty of torque to get through the hardest branches.
  • Torsion suspension with 205/65 DOT tires for easy towing.
  • Rotor stands at a massive 56 lbs., with one hardened steel chipping blade and combined with 6 FULLSHRED cutting flails and 24 impact hammers for continuous and effective shredding.
  • Large 8 gallon fuel tank for long extended working hours.

The 4521 is Yardbeast's newest and most innovative wood chipper yet. A commercial grade and powerful gravity self feeding chipper able to tackle through challenging jobs any place where it is required, it has a maximum chipping capacity of 4.5 inches thanks to a robust 20.5HP Kohler engine and a commercial grade heavy duty clutch.

An electric start wood chipper, The Yardbeast 4521 has a CARB approved fuel system and engine. It is also highway towable with DOT tires and lightning equipment.

Free shipping with residential delivery and liftgate service within lower 48 U.S states. Currently there is a 3 week lead time before this chipper will ship.

Additional Features:

The Yardbeast 4521 is fitted with a tough heavy duty polyethylene tool box that makes it super convenient for storing tools, spare parts, etc. It utilizes a premium 12V-35Ah battery for fast startups and has an industry-first V-shaped anvil which improves the feeding dynamics of the unit. 

The Y-n-stripes aren't just for looking cool. At full RPM’s they create a huge internal vacuum which allow incoming air to go through the chamber and increase the discharge air flow. This greatly improves the wood chipper's efficiency, allowing chips to be discharged at a greater distance.

The 4521's rotor is fabricated with 3/4″ steel and dual reversible  laser cut A8 steel blades - one of the most durable and wear resistant materials in the industry. Precisely angled, the blades self-feed practically anything coming through the feed chute.

The discharge neck can be locked in any of its 10-positions and is able to rotate 360 degrees. Simply push down one of the levers to rotate the discharge wherever you need to direct the chips.

The V-shaped hopper and anvil keeps branches centered and reduces swaying. This not only reduces chipping time, it greatly enhances your overall chipping experience - especially with long branches. You won't find this feature with any other wood chipper on the market!

An easily adjustable deflector is attached to the neck discharge to control the angle and discharge distance of the chips. You can detach the belt guard from three knobs located on the top, and one on each side. This setup makes it easy and quick to remove the guard an inspect the transmission as well as going over maintenance jobs.

Kohler Command Pro Engine:

This V-twin cylinder, air-cooled, horizontal-shaft engine is built to last. OHV, cast iron cylinder liners, and aluminum block construction make the 4-cycle, gasoline-powered Command PRO® ready for the long haul.

Durable, Long Life Design

Hydraulic valve lifters are oil pressurized, ensuring that push rods stay in constant contact with the rocker arms. Requiring no adjustment, the valve train is virtually maintenance-free. In addition, full-pressure lubrication delivers continuous lube to critical engine components, even at 25-degree angle of operation and optional oil cooler regulates the oil temperature extending oil-change intervals. Large capacity, in-line fuel filter provides extra protection against dirt particles that can clog fuel lines.

High Power Performance

Overhead valve technology provides greater volumetric efficiency and a higher compression ratio. This produces more power, improved fuel economy and cooling and reduces oil consumption. In addition, there is virtually no carbon buildup, reducing overall maintenance costs. The variable speed, mechanical governor promises smooth performance, regardless of application or fluctuating demands for power.

Built to last, the Yardbeast 4521 wood chipper is 100% steel fabricated and includes a 2 year warranty for the chipper and 3 years for the engine.

YARDBEAST 4521 User Manual


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