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MechMaxx 420cc DUCAR E-Start Stump Grinder with Tow Bar

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Original Price $2,299.00
Current Price $2,099.00

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Description

Remove tough stumps quickly with the SG380 15" stump grinder featuring a 15HP 420cc DUCAR electric‑start engine, 12 replaceable carbide teeth, and a centrifugal clutch with dual drive belts for smooth, reliable power transfer. Built for landowners, landscapers, and property managers, it delivers strong cutting performance, easy belt adjustment, and tow‑bar mobility for efficient stump removal across any property

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UnionBuilt Supply is an authorized dealer of MechMaxx. All manufacturer warranties are honored.

MechMaxx 420cc DUCAR E‑Start Stump Grinder with Tow Bar

Clear stumps quickly with this 420cc electric‑start stump grinder built for routine property‑maintenance tasks. The carbide‑tooth cutting wheel supports controlled grinding, helping operators work through material within the machine’s rated capabilities. A tow‑bar design allows the grinder to be moved between job sites, supporting multi‑location use.

The compact frame improves access in tight or obstructed areas where larger grinders are impractical. Its structure suits users needing a practical, standalone stump‑removal solution for small‑scale clearing work.

Product manual (PDF)

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Engine manual (PDF)

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Engine
Engine

The SG380 Stump Grinder is powered by a 15hp 420cc E-start Ducar gasoline engine. This engine can provide great power.

Cutter Wheel and Teeth
Cutter Wheel and Teeth

Mounted on the 10-inch diameter cutter wheel are 12 sets of professional-grade teeth, enabling a cutting diameter of an impressive 14 inches . This allows for cutting stumps at a higher elevation from the ground. The pocket is forged from 42CrMo, and teeth are made of YG11C alloy, with a diameter of 1 inch. This design ensures more efficient stump cutting, improving work efficiency by approximately 35% compared to other types of teeth.

Electric Start Battery
Electric Start Battery

The SGR380 Stump Grinder is powered by an electric start gasoline engine and equipped with a 12V20Ah lead-acid battery.

Chassis Rotation
Chassis Rotation

The design concept is to integrate the engine, cutter wheel, and handle into a single welded structure as a working unit. There is a set of rotating mechanisms between the working unit and the chassis. The lever on the right side of the handle can lock and release the chassis. When in a ready-to-work state, lifting the left brake handle can simultaneously lock both left and right tires. After releasing the chassis, the unit can swing left and right to perform cutting tasks. This design allows operators to work more easily and continuously.

Left and Right Swing Rotation Angle
Left and Right Swing Rotation Angle

The chassis's left and right swing angle can reach 65 degrees, with a linear distance of up to 31.5 inches. This allows for easy cutting of stumps with a diameter of up to 31.5 inches, relying solely on the simple swinging of the chassis.

Tyre Fixation
Tyre Fixation

In our latest design, both tyres are fixed simultaneously, and the chassis swings left and right to perform tasks. The major advantage of this design is the ability to work more easily and continuously. Fixing both tyres at the same time ensures protection against collision injuries caused by operator errors, greatly improving operational safety.

Cutting Height and Depth
Cutting Height and Depth

With a maximum cutter wheel rotation diameter of 14 inches and a dual-wheel locking design, the handle can easily be pressed down, achieving a cutting height of 15 inches above the ground and a depth of 10 inches.

Adjustable Rotation Handle
Adjustable Rotation Handle

This lever controls the locking and releasing of the chassis. When the chassis needs to rotate during work, lift the lever. To move the machine to the next work area, return the lever to its original position, and simultaneously release the tire brake handle to enable movement.

Tow Bar and Support Leg
Tow Bar and Support Leg

A 2-inch coupler is mounted on the tow bar, compatible with a 2 inch trailer ball. When outdoor work is needed, you can use the ATV or pickup truck to tow the stump grinder to work area. The trailer hitch comes as a standard feature which can be installed when needed.

  • Highlights
  • Assembly & Installation
Product Warranty

MechMaxx 420cc DUCAR E-Start Stump Grinder with Tow Bar (SKU: 130300) includes a standard one-year manufacturer warranty covering defects in materials and workmanship under normal use.

Product Extended Warranty Plans

Extended warranty plans may be available for select products. Contact us to confirm eligibility and coverage details.

Engine DUCAR Dh420(E) Cutting Height 15 in Above Ground
Certification(S) EPA Phase III, CARB Phase III Cutting Depth 10 in Below Ground
Engine Type Single Cylinder, 4 Stroke, Air-Cooled, OHV Rotary Chassis Yes
Displacement/ HP 420 cc; 15 HP Max. Rotation Angle 65 Degrees
Start E-Start Max. Rotating Distance 31.5 in
Battery 12 V 20 Ah Lead-Acid Tow Bar Included
Brake 2 x Wheel Lock Coupler 2 in Ball
Belt 2 x V-Belts Wheelbase 32 in
Belts Material Kevlar Max. Speed Off-Road Only and Max. Speed 15mph
Clutch Centrifugal Clutch Front Wheel 10 in
Cutting Wheel Dia. 14 in Tire 145 / 70-6 Tubeless Tyre
Cutting Wheel Thickness 0.47 in Assembled Weight 303 lbs
Carbide Tip Qty. 12 Pcs Gross Weight 353 lbs
Tip Holder Material 42CrMo Packing Size  45 x 30 x 29.5 in
Carbid Tip Material YG11C Alloy

WARNlNG: This product can expose you to chemicals including engine exhaust (including diesel engine exhaust when equipped),lead and lead compounds, mineral oils, soots, phthalates, and carbon monoxide which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Certain specification(s) are based on engineering calculations and are not actual measurements. Specification(s) are provided for comparison purposes only and are subject to change without notice. Specification(s)  for your individual equipment will vary based on normal variations in design, manufacturing, operating conditions, and other factors.

 

  • 5 stars: 29 (97%)
  • 4 stars: 1 (3%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
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David Y

This is a very good product. The SG380 is a very capable machine and so far has not met a stump it couldn't grind. I'm very happy with quality of the product and the customer service I received. I own both this and the SG24 grinder and I would recommend MechMaxx as your next purchase.

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Rick M

Powerful, ground out 3 15 inch stumps in 90 minutes , easy to maneuver with the trailer hitch, easy to rotate or replace teeth

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Lucas

I can't express in words how impressed I am with the quality of materials and construction of this grinder!

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Chris B

Well built, everything arrived in good order. This stump grinder works as described, and has very sharp teeth.

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ELLEN C

Seems like a strong machine. well built. Will follow up after extensive use.

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JR W

Does the job, seems pretty solid piece of equipment

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Jim B

Just ground my 78 stump down to below ground level and am still on my first set of carbide cutting tips. Have sand for soil, but big maple stumps. At $100.00 a stump that our local stump grinder charges, this machine owes me NOTHING! It usually starts with 1 pull. Sometimes it takes 2 pulls to start it. Have a new set of tips and belt, but haven’t needed to change either yet. I had it for 2 years with no problems.

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Dennis M

Grinds stumps real well. A little nose heavy. Need a more detailed explanation of the cable and electrical wiring routing!

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Daniel S

This stump grinder is reliable, powerful, and easy to use. It starts right up with the push of a button. Tows easily and grinds even large stumps quickly.

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Danny H

I’ve used rental grinders before, but this one’s next-level. Gives great power, and saves time. It’s sturdy, effective, and easy to haul with the tow bar.

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Bill S

Love this machine! It grinds stumps fast and efficiently. The tow bar makes moving it around super convenient. Highly recommended

M
Matthew J

Incredible performance! Starts instantly, and the motor powers through even large hardwood stumps. Easy to tow and maneuver. Great value for the price.

B
Bradley W

Love this machine! It grinds stumps fast and efficiently. Even large hardwood stumps. Easy to tow and maneuver. Great value for the price.

J
Joshua

This stump grinder is a powerhouse! The engine tears through stumps like butter. The electric start is a lifesaver, and the tow bar makes transport easy. Totally satisfied

J
Jeffrey P

Delivery was fast. Assembly was pretty simple, Once you get done with one stump you can not wait for the next. Have run it for 7 days removing 3 to 12 inch stumps with no problem. Highly recommend this unit for the money.

J
Jim B

I’m 76 years old and decided to make life easier when mowing my lawn and remove stumps in my yard. So far, I’ve removed 46 stumps and haven’t changed belts or carbide tips yet. Took a 35 “ stump down to 3 inches below ground in 11 minutes. I made my own tow bar because it’s too heavy to push any distance. Plan to remove another 20 stumps next week.My wife took a video of the last stump being ground down and it shows how efficient this machine is.Soon as I take my “dirt-nap” the kids will have something else to fight over!

S
Scott J

Easy Order and delivery. Quick install and set up. Good instructions. Had 3 stumps and it took care of them with ease in less than one hour of work. Highly recommend this stump grinder.

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Gregory S

I knew it was going to be a quality product as soon as I received the package. Grinder was well packaged, everything was in order and all parts were included.

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Daniel M

This is a solid machine. Has ground dozens of stumps so far. It takes some upper body strength, but once you get the hang of it...

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Joshua J

I am very happy with my new stump Grinder. Works great and I like the way it was packaged when it was shipped to me. It has exceeded my expectations.

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john W

It is very well built and I think it will give me many years of reliable service.

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Marley D

This stump grinder was nicely packaged and easy to assemble.

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Gary W

It works as expected without any issues. I'm very happy with it so far. The stump grinder is well constructed and has good features.

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Jerry D

As with anything new, there is a learning curve. When I started working with very large ash stumps I wondered what I was doing wrong. Then I had smaller ash stumps, maples, and pine trees. After the big ash, the maples and pine were easy.

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Vince A

I ground out about 30 stumps and it worked perfectly. As an added bonus, this grinder is quieter than I might think. So glad I bought it!

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Joe G

I have removed about 50 trees in a month. You will need to put some Lock tight on the grease inserts. They want to rattle loose. This is a strong reliable stump grinder at this price range.

C
Christy B

We had the opportunity to use this stump grinder and it works perfectly very satisfied thank you

A
Andrew S

I have used other stump grinders and this works better than others. I have cleared 4 cherry tree stumps up to 10 feet wide. It is necessary to change the direction of the blade during operation.

D
David E

Felled tree stumps have always been a problem for me, so I decided to purchase a stump grinder. This machine is so cool, it's a great machine and I've needed it to help me a lot of times.

F
Frank D

I cut the stump closer to the ground to save a lot of grinding time. It's great and has been put to good use at my property.

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