DR Power PRO 475 Self-Feeding Wood Chipper, 389cc

The DR PRO 475 is a dedicated self-feeding wood chipper built for property owners and crews who need to clear brush fast without wrestling every branch into the hopper by hand. Powered by an 11.7 HP, 389cc OHV engine with a cast-iron cylinder sleeve, it is engineered to run hard, run often, and keep pulling material through the chute on its own.

Self-feeding hopper does the work for you

Instead of forcing branches through by hand, the PRO 475's hopper design grabs material and pulls it into the chipping chamber automatically. That means less fatigue on long clean-up days and a steadier, safer feed rate than a manual-feed chipper.

Handles branches up to 4-3/4 inches thick

A 17.75-inch, 50-lb flywheel spins the chipping knives at up to 128 mph — around 40 bites per second — so the PRO 475 can process branches nearly 5 inches in diameter without bogging down, making short work of storm cleanup and seasonal pruning debris.

Built to move around the property

A 17" x 27" hopper opening, a 180-degree swiveling discharge chute, and a standard pin hitch let one person position the chipper, aim the discharge exactly where it's needed, and tow it between job sites. An optional road-towing package (up to 45 mph) is available for crews who move between properties.

Key features

• 11.7 HP, 389cc OHV engine with electric start and manual backup
• Self-feeding hopper reduces manual handling and feed fatigue
• Chips branches up to 4-3/4" in diameter
• 17.75" / 50-lb flywheel spinning at up to 128 mph (40 bites/second)
• 180-degree swiveling discharge chute for precise chip placement
• Standard pin hitch; optional road-towing package up to 45 mph
• Dual-element air filter for extended engine life in dusty conditions

Specifications

Brand	DR Power Equipment
Model	PRO 475 (CP55047DMN)
Engine	389cc OHV, single cylinder, cast-iron sleeve
Horsepower / Torque	11.7 HP / 18.4 ft-lbs
Starting	Electric with manual backup
Fuel capacity	1.7 gallons
Oil	1.2 quarts, SAE 30W HD
Chipping capacity	Up to 4-3/4" diameter branches
Flywheel	17.75" diameter, 50 lbs, 128 mph knife speed
Hopper opening	17" x 27"
Length / Height	59" / 50.5"
Weight (packaged)	270 lbs
Tires	2 x 4.10/3.50-6, 12" saw-tooth tread

Frequently asked questions

How thick a branch can the PRO 475 chip?

It is rated to process branches up to 4-3/4 inches in diameter thanks to its 50-lb flywheel and 128 mph knife speed.

Do I need to feed branches in by hand?

No — the self-feeding hopper pulls material into the chipping chamber on its own, so you mainly need to guide branches into the opening rather than force them through.

Can it be towed behind a vehicle?

The standard pin hitch is designed for towing around the property with a lawn tractor or ATV; an optional road-towing package rated up to 45 mph is available for highway towing.

What maintenance does the engine need?

Routine maintenance is limited to standard small-engine service: SAE 30W HD oil changes, air filter checks on the dual-element filter, and periodic inspection of the chipping knives for sharpness.

What is in the box

DR PRO 475 self-feeding wood chipper with 389cc engine, pin hitch, dual-element air filter, and owner's manual.