Liberty Professional 8" (540 RPM) PTO Chipper. As a pro, you'll be handling larger volumes of debris more frequently, so this unit comes with an automatic feed roller system. That means you don't have to stand around and feed the branches in one at a time; the grapple teeth and rollers draw the branches into the chipper while you're getting the next batch ready.
Liberty Ranch 8" (540 RPM) PTO Chipper. This unit is meant for larger tractors: 18 HP and up. It takes on larger branches than the 5" model (up to 8 inches in diameter- small logs, actually); so it needs the extra power to spin the 106 pound flywheel. As you clear land or log-off trees, there's a lot of branches, leaves, and chunks left behind. This unit will make short work of that bulky stuff, and turn it into useful mulch for soil improvement and landscaping.
Liberty Ranch 5" (540 RPM) PTO Chipper. These brawny units are meant to use your tractor's power to help you clear brush, limbs and debris. You feed in branches up to 5 inches in diameter through the generously sized feed chute, and useful mulch comes out the discharge chute- it's that simple.
PowerTek (7") 31HP Hydro-Feed Tow-Behind Chipper Shredder. The 31 HP Briggs & Stratton Vanguard engine dependably drives the operation of a 30-inch flywheel-and-knife combination that chews through wood up to 7 inches in diameter. This allows you to turn wood too small to be firewood into valuable mulch instead of burning it on-site: better for your budget, and the environment.
PowerTek (7") 28HP Hydro-Feed Tow-Behind Chipper Shredder. This is a terrific tool for small-to-medium landscape maintenance businesses, or folks with a lot of property to keep tidy. The vacuum quickly & easily cleans leaves and twigs out of shrubbery, then shreds them into the 44 gallon container for convenient disposal or addition to the compost pile.
PowerTek (7") 25HP Hydro-Feed Tow-Behind Chipper Shredder. Slash left from clearing or logging-off gets turned into profitable mulch with very little effort on your part. Just get the material up to the chute; the hydraulic feed takes it into the heavy-duty flywheel & reversible knives so you're freed up to get the next batch ready. The 360° rotating discharge chute is a nice touch, too. It allows you to feed the chips into a cart or truck; or create a tidy pile.
Troy-Bilt (3") 250cc 1150 Series Tow-Behind Chipper Shredder. It can handle branches up to 3 inches thick. An inch may not seem like a lot, but try breaking a 2" branch over your knee. Then try breaking a 3" branch- you'll be lucky not to break your knee, instead. The engine is larger, and the chutes are more generously sized so you fight less to get cumbersome branches and debris safely into the hopper.
Earthquake (3") 206cc Chipper / Shredder With Briggs & Stratton Intek Engine. Even if you aren't planning on using the mulch for your landscape, this chipper/shredder will turn 20 bags of yard waste into just 1! That's less to lug to the curb, and less in the landfill- a good thing all around. The large 2 bushel collection bag means you can get more done before you have to stop and empty it. This unit handles branches up to 3" in diameter.
MTD Yard Machines (2") 208cc Chipper Shredder. This chipper/shredder can handle branches up to 2 inches in diameter, and all the leaves you care to rake. It turns 10 bags of lawn debris into just one bag! It comes with a 2.5 bushel bag so the resulting mulch goes where you want it, not all over the ground. The 2 steel chipper knives chop finely enough that you can compost your leaves, too.
Troy-Bilt CSV206 (24") 205cc Self Propelled Chipper Shredder Vac. This is the Big Daddy of lawn vacuums- it can clear 1/3 of an acre in 2 hours or less! It has a separate feed chute that can chew through sticks up to 2 1/2 inches in diameter. And there is plenty of power to the wheels- saving your back and arms a lot of strain and fatigue.