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Product Description
Mongo Attachments Rotary Brush Cutter | Model MRC42 | Cutting Width 42" | 13–15 GPM | 3.5 Ton | For Excavators
Description
The Mongo Attachments MRC42 Rotary Brush Cutter delivers powerful, efficient cutting performance for land clearing, vegetation control, and site preparation. Engineered for 3.5‑ton excavators, this heavy‑duty cutter features a robust 2‑blade carrier, optimized for smooth, balanced cutting through brush, grass, and material 3" thick and above. Its bolt‑on top deck with a removable, reversible cover ensures fast access for maintenance, while the no case drain required design simplifies installation on a wide range of excavators. Built with a durable cast‑iron orbital motor and designed for 13–15 GPM hydraulic flow, the MRC42 provides consistent torque, quick recovery, and reliable performance in tight spaces and demanding environments. Whether you're a contractor, landowner, or vegetation‑management professional, this rotary cutter delivers the strength, precision, and productivity needed for tough clearing jobs.
Key Features
Heavy‑duty 2‑blade carrier Provides powerful, balanced cutting action for brush, grass, and small trees, maximizing productivity in demanding land‑clearing applications.
High‑efficiency cutting performance Optimized blade speed and torque deliver smooth, controlled cutting through vegetation up to 3"+ thick.
Bolt‑on top deck design Allows quick access for servicing, with a removable and reversible cover for simplified maintenance.
No case drain required Streamlined hydraulic setup makes installation easier across multiple excavator models.
Cast‑iron orbital motor Durable, high‑torque motor ensures long service life and consistent cutting power.
Compact footprint for tight areas Ideal for clearing material in confined spaces, narrow paths, and areas with limited turning radius.
Reinforced steel blade carrier Built to withstand heavy impact and continuous use in rugged terrain.
Optimized for 3.5‑ton excavators Perfectly matched for machines needing strong cutting capability without excessive weight.
13–15 GPM hydraulic flow compatibility Ensures efficient motor performance and fast recovery between cuts.
High RPM cutting speed 1,080 RPM range provides aggressive cutting action for dense vegetation.
3"+ cutting diameter capability Handles thick brush and saplings, reducing the need for manual clearing.
Machine‑specific coupler included Ensures proper fitment and secure attachment to your excavator.
Low‑maintenance construction Simple design with fewer wear components reduces downtime and service costs.
Reversible cover panel Extends component life and allows flexible configuration for different job conditions.
Ideal for land clearing and vegetation management Perfect for contractors, farmers, municipalities, and property owners.
Detailed Specifications
Specification
Details
Model
MRC42
Cutting Width
42"
Weight Without Mount
649 lbs
Minimum Excavator Weight
3.5 Tons
Hydraulic Flow Requirement
13–15 GPM
Motor Type
Cast Iron Orbital
Motor Size
80 cc
PSI Rating While Flowing
2,500 PSI
RPM Range
1,080 RPM
Number of Blades
2
Cutting Diameter
3"+
Top Deck Style
Bolt‑On with Removable Cover
Case Drain Requirement
Not Required
Coupler Compatibility
Machine‑Specific Coupler Included
Application Type
Brush, Grass & Light Timber
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Manual & Documents
General Warranty Info:
Ripping It Outdoors works closely with our manufacturers to supply and support your products warranty needs as best as possible!
The majority of products come with a manufacturer represented warranty against manufacturing defects for at least a 12 month period after the date of sale.
Expendable components and "wear parts" including but not limited to blades, knives, teeth, oil, chain sprockets, skid shoes, knife mounting discs, and similar components are usually excluded from manufacturer warranties.
Please reach out to us for any specific warranty information needed about products and parts you can’t find!
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Customer Reviews
Overall rating: 4.7 / 5 from 110 reviews.
I've started using the mulcher I on several parcels of land 10 acres . I have grind down a couple of 14 inch stumps. Caution the mount bracket behind the mulcher motor exhaust gets extremely hot even with gloves on . But the unit so far seems to works very good it's well put together.
The Firminator G3 is s heavy duty quality machine. The discs worked extremely well and planting and culti-packing is very smooth and easy. Working with Dillon at Ripping It Outdoors was a very good experience and seamless transaction.
The week before leaving for my mule deer hunt in Wyoming, I seeded the area surrounding the new runway at Wertheimer Airport in Norman.
This past Tuesday, I returned to finish the job and was pleased to see that the seed I planted just two weeks earlier was already germinating and coming up nicely.
These pictures show the freshly seeded areas alongside those planted two weeks ago. It’s a great comparison and a good example of what proper seedbed preparation and planting can accomplish.
I used my Ferminator G-3, which is one impressive piece of equipment. It prepares the seedbed, plants the seed, smooths the soil, and firms everything up for good seed-to-soil contact—all in one efficient operation.
I’ve owned and operated several no-till drills over the years, but I can say without hesitation that the Ferminator is the most efficient and versatile seeding machine I’ve ever owned.
There’s something pretty satisfying about returning to a job and seeing those first green shoots coming through the ground. That’s when you know your hard work is paying off!
Just got my Buffalo Turbine! Love it. Took a little bit to get used to getting the right angle for the nozzle, but not a problem. Side note, works much better if the frame is level as much as possible.
Love it!
Gary Haddock
Seems to be in order delivery wasn't able to use lift gate but tractor was able to take pallet off the truck bed. No damage to machine after visual check. won't know how it runs until rain stops.
Staff at RippingitOutdoors was very quick to call and double check the type of backet needed for the unit to ensure the online order matched( to fit my skid steer quick attachment on my l2501 Kubota). Explained the teeth & belt could be ordered through them directly over the phone when/if needed as well as selling other types of custom made brackets for Utv's ect. All around Great customer service and would purchase from again.
After spending way to much money for forest mulching services I discovered this wonderful machine. It's not a giant powerhouse forest mulcher, but it does everything a property owner needs to maintain a forested property. I wish I would have found it sooner.
The Firminator is well built and functions well. I am having some trouble while planting mixed size seeds. Next time out I’ll try setting it so only the smaller seeds drop out the open it up for the larger seeds.
easy buying process and great communication. Mulcher works great, easily clears overgrown brush and even mulched a 5" thick mulberry tree fairly easily. running it off of my old 331 bobcat with no problem powering the drum at all. Only small issue which isn't a big deal is that the supplied hoses are about 16" too short to operate a full range of motion.
Over all built well. I like it is all cast iron and metal and not plastic. Had to modify fertilizer disc mount to fit correctly, nothing major, a little grinding. I modified the center link hitch point to accommodate my John Deere quick hitch. Have yet to plant with it but I’m sure it will work perfect. Love the grease fittings everywhere. Reminds me of the old farm equipment I grew up on, and still use periodically.
My firminator RT was delivered in good condition in ND. I will be using it next week. I have a 45 HP John Deere tractor that is supposed to lift 2000 lb but really struggles to lift this 6 foot firminator RT. I will just have to use in as a two pass operation for now.
I do wish there was a better operating manual for this unit. Maybe that is something you can work on.
I will give you an update once I start using it in a few days.
Great piece of equipment. Performs far better than I expected. One piece of advice - if property is significantly overgrown, consider the tractor attachment first to bring down the over growth and then switch to the UTV attachment to maintain property. No complaints worked perfectly.
Very pleased. Product was better than anticipated and is working well.
I expect the 2000lb feeders to last at least a decade based on my use with cattle.
If feeding wild game would likely last a lifetime with minimal maintenance.
seeds come out way to fast at lowest setting when planting alfalfa literally the only reason I bought it now I can't even use it and I can't return it so I'm stuck with it for the price you pay you would think it would work!
It’s built solid. It handles Field grass hip high pretty well. With the maintaining the field grass after the first cut, the pasture field is starting to look like a lawn. The 84 inch with the best thing to get for 8 acres. It’s best to order belts for back up in the event if the belts were to break. But overall, I like the product quality is good.
When I think of ripping it outdoors something else comes to mind, but I digress. This spreader is awesome. Works like a champ. The hopper is big enough to do my 1 acre lot for my applications. Just load once and go. I would highly recommend this spreader. It saves a ton of time and is a quality product.