1996 Peterson 4400B

1996 Peterson 4400B

5,300 hours on a 1996 Peterson 4400B — that’s roughly 180 hours per year on an 800HP horizontal grinder. That level of low annual use is uncommon for a machine in this class and leaves room for continued production work.

Who This Machine Is For

• Land clearing contractors — handles brush, timber, and stumps on job sites
• Recycling yards — processes wood waste into reusable material
• Forestry operations — built for grinding whole trees and dense material
• Operators looking for high horsepower at lower cost — strong output without newer machine pricing

What It Grinds

• Whole trees and large timber — horizontal feed handles long material efficiently
• Stumps — breaks down dense root systems into grindable material
• Brush and green waste — reduces volume quickly for hauling or reuse
• Construction wood waste — processes pallets, lumber, and mixed debris

This is not a chipper. It uses a hammermill system, so the output is ground material, not uniform chips.

Specs in Plain Language

This unit is powered by an 800HP CAT 3412 engine. That level of horsepower puts it in the production class, capable of handling large, dense material without slowing down under load.

With 5,300 hours over 29 years, you’re looking at about 180 hours per year. That’s low usage for a horizontal grinder, especially compared to machines that run daily in production yards.

The Peterson 4400B is known as a production horizontal grinder. It offers controlled feeding, which helps produce more consistent material compared to tub grinders and works well with long feedstock.

Because no additional extras are listed, buyers should evaluate overall condition and wear components such as the mill, bearings, and drive system. Maintenance history will play a key role in performance.

If you’re comparing options, you can also view other horizontal grinders or check tub grinders if your operation prefers gravity-fed grinding.

Why Buy From GrinderCrusherScreen

We've been in the horizontal grinder business since 1973. We know these machines because we work in this industry every day. We can answer your questions about the 4400B before you buy, and we help with financing, coordinating inspections, and arranging transportation.

Got a horizontal grinder you need to sell? We handle the marketing, the calls, the tire kickers, and the transaction. It's free. You set your price, you get your price.

Call 770-433-2670 or email sales@grindercrusherscreen.com for pricing or details.