By Mongo Attachments · Built to order · Ships direct from the builder
Rotary Brush Cutter
Clear brush from the seat of your excavator. Mongo rates every size for a 3″+ cutting diameter. Each cutter is built to fit your machine, so we need a few quick specs first.
- Cast iron orbital motor
- Heavy-duty 2-blade carrier
- No case drain needed
Fit it to your machine
0 of 7 doneHow to find your flow
- Look for “auxiliary flow” in the hydraulics section of your operator’s manual or spec sheet. It’s listed in gpm or L/min. Divide L/min by 3.785 to get gpm.
- Your dealer can look it up from your machine’s serial number.
- Still not sure? Choose “Not sure” and a rep will confirm it with you.
Every price includes freight to a lower 48 commercial address.
How to measure
- A: Use calipers across the pin (not the bore). Most mini-excavator pins are metric.
- B: Center of one pin to the center of the other.
- C: The gap between the two inside faces of the mount ears.
Options narrow to match your pin size.
Which style matches your current bucket’s coupler?
Distance A–A (tape measure, nearest inch)
Measure from the flat-face couplers on the stick to the main bucket pin. Accepts 24–144 in.
Enter a whole number from 24 to 144.
Add 1 to 3 photos. Required for every order, even if you’re asking for help.
Your photos are attached to your order for our reps and the builder.
Not sure? If you don’t own a forklift, tractor, or loader, choose lift-gate delivery. The driver lowers the cutter to the ground at your delivery address. It isn’t carried into a building. Lift-gate is added to your cart as a separate line.
Your specs
- Built to order and shipped by freight directly to you.
- Built to order. After you order, we process it and confirm your ship date.
- You have 24 hours after ordering to correct any spec before it goes to Mongo.
- Choosing “I need help” means a rep confirms your specs before your order goes to production. You’re still charged at checkout.
What’s included
In the box
- Rotary brush cutter in your size
- Cast iron orbital motor, no case drain needed
- Heavy-duty 2-blade carrier
- Bolt-on top deck
- Bolt-on mount built to your coupler specs
- Hoses with industry-standard 1/2″ flat-face quick couplers
You’ll also need
Auxiliary hydraulics
An auxiliary hydraulic circuit with at least 11 gpm for the 36″, 13 gpm for the 42″ or 16 gpm for the 50″. More than 26 gpm? Turn your aux flow down. Not sure? Choose “I need help” and a rep will check.
Sizes and specs
| Size | Model | Cutting width | Weight (no mount) | Motor | Motor size | Oil flow | RPM | Blades | Machine size | Price |
|---|---|---|---|---|---|---|---|---|---|---|
| 36″ | MRC36 | 36″ | 591 lbs | Cast iron orbital | 50 cc | 11+ gpm | 1,440 | 2 | 2.5 to 5 ton | $6,675 |
| 42″ | MRC42 | 42″ | 649 lbs | Cast iron orbital | 80 cc | 13+ gpm | 1,080 | 2 | 3.5 to 8 ton | $6,950 |
| 50″ | MRC50 | 50″ | 773 lbs | Cast iron orbital | 100 cc | 16+ gpm | 1,075 | 2 | 6 to 10 ton | $9,260 |
Downloads
Questions before you order
How do I know which coupler I have?
If you have to knock out both pins to swap buckets, it’s a pin-on. If a coupler grabs two pins and you never touch the pins, it’s a pin grabber. Anything else, including John Deere wedge lock, single removable pin, Wain Roy / TAG, Kubota factory “ears,” or Bobcat X-Change, is “Other.” Pick it and we’ll show you each style.
What auxiliary flow does my machine need?
Each size needs a minimum flow on your primary auxiliary circuit: 11 gpm for the 36″, 13 gpm for the 42″ and 16 gpm for the 50″. More than 26 gpm? Turn your aux flow down to 26 gpm or less. Not sure what yours puts out? Choose “Not sure” in step 1 and a rep will check.
What if I’m not sure I measured right?
Choose “I need help determining my setup” on the last step. A rep will reach out, confirm your specs against your photos, and release the order once everything checks out.
Can I change my specs after I order?
Yes, for 24 hours. After that, the order goes to Mongo and your attachment is built to your specs, which makes changes difficult.
Is shipping really free?
Yes. Freight to your door is built into the price of every cutter, so the price you see is the price you pay for shipping. Sales tax is calculated at checkout. See our Shipping & Returns policy for timelines, returns and answers.
Do I need lift-gate delivery?
If you own a forklift, a tractor with forks, a loader, or have a loading dock, you can unload the pallet yourself. If not, add lift-gate delivery. The truck’s hydraulic lift-gate lowers the cutter to the ground at your address. It’s added to your cart as a separate line item.
Why is a photo required?
No two machines are set up the same, and factories ship them without couplers. A clear photo is the fastest way for our team and the builder to catch a mismatch before it costs you a cutter.
Can I return a custom-built cutter?
Our rotary cutters are customized to fit your specific make, model and setup for your machine. They are non-returnable. If you’re not confident in the setup of your machine, select “I need help determining my setup” and one of our sales reps will be in touch to confirm prior to completing your order.