Excavator Mulching Heads

Forestry Mulcher Head

Our Brown Brontosaurus Mulching Heads are available in fixed tooth or flail style (free swinging tooth) designs for your hydraulically driven carrier of choice.  Our mower heads can be as small our compact 24 inch cutting surface models such as the 2.0 EM, or as large as our 60 inch cutting surface model such as our 5.0 E

Skid Steer Mulchers

Mulcher Head for Skid Steer

Designed for your high flow skid steer this mower head is perfect for roadside clearing, land clearing, and residential work.  Long life tools and bearings coupled with easy to purchase generic parts allows you to quickly diversify your equipment.

Stump Grinders

Stump Grinder

Our Model 30 and Model 50 stump grinders, using the Leonardi Wheel, will allow your excavator to far out perform any tow-behind style stump grinder.

Grind 200 or more stumps in a day without changing your teeth.

Auxiliary Engines

Auxiliary Engine - Pony Motor

Auxiliary Engines or Pony Motors as they can be called have the ability to turn a smaller excavator into the mower powerful machine available.  We can convert just about any excavator, from a large CAT or John Deere, to a small Komatsu 88.  We can give your machine the power it needs to get the job done right.

Forestry Screens

Screen copy

We are your complete custom shop and can build a forestry screen for your excavator.  Also ask about our rock guards, cat walks, and belly pans.

Recent News

May 6, 2015 – New prototype mower for 10,000+ lbs excavators deemed a success and going into production! More to come!
March 18, 2015Bronto Brokerage – Used Mulching Heads
March 13, 2015 – The carbide tipped knives are now available!
February 11, 2015 – New Stump Grinder video is now online
January 1, 2015 – Happy New Year from all of us at John Brown & Sons!




Online Videos

YouTube Mower videos

Downloads and Documents

Folder Adobe PDF View our online manual
Complete Manual and Operators Guide
Brown Brontosaurus Attachments Brochure

Customer Resources

Do I have enough Hydraulics?
Open vs Closed Loop System?
Hydraulic Motor Pressures?