SEPPI Lightest Excavator Flail Mulcher / Mower | Model H3 60 | Working Width 25" | Machine Size 3.5 - 5 Ton | For Excavators
DESCRIPTION
The Seppi H3 60 Flail Mower is the lightest, most agile hydraulic mulching head in Seppi’s premium lineup crafted for 3.5 to 5-ton mini excavators. Whether you're maintaining riverbanks, clearing brush in tight corridors, or managing roadside vegetation, this compact powerhouse delivers exceptional performance without weighing you down.
With its 25-inch working width and reinforced AR400 steel chassis, the H3 60 is engineered for durability in the most demanding terrains. It’s capable of mulching grass and brush up to 1 inch thick, powered by hydraulic flows from 5 to 13 GPM making it an ideal fit for a wide range of mini excavators. The integrated mechanical float adaptor allows the head to follow the ground's contours, ensuring a clean, uniform cut every time.
Designed for operators who demand reliability, maneuverability, and professional-grade results, the Seppi H3 60 offers a seamless blend of technology and toughness.
Key Features
Designed specifically for mini excavators from 3.5 to 5 tons, making it ideal for compact machines used in urban, forestry, and roadside applications.
Features a 25-inch working width, perfectly balanced for maneuverability in tight spaces like trails, ditches, embankments, and narrow right-of-ways.
Built with a high-tensile AR400 wear-resistant steel chassis for extreme durability and resistance to abrasion, impact, and long-term wear.
Capable of mulching grass and brush up to 1 inch (3 cm) in diameter, delivering a clean, even finish for vegetation management and site clearing.
Operates efficiently within a hydraulic flow range of 5–13 GPM, ensuring compatibility with most mini excavators in the 3.5–5 ton class.
Fitted with a triple helical rotor and SMW flails, engineered for high-efficiency cutting with reduced vibration and balanced load distribution.
Includes a mechanical FLOAT adaptor as standard, allowing the mulching head to follow ground contours for a consistent and professional result.
Features a height-adjustable 5-inch support roller with reinforced bearings for stable performance across uneven terrain.
Protected with a chain curtain at the front and rubber flap at the rear, minimizing debris ejection for safer operation around workers and property.
Equipped with a universal mounting interface, allowing seamless attachment to most mini excavator brands without custom fabrication.
Lightweight construction at only 330 lbs (150 kg) reduces strain on smaller excavators and enhances overall fuel efficiency during operation.
Compatible with hydraulic gear motors or variable displacement motors, giving operators flexible control over torque and cutting speed.
Modular design allows for optional tools such as Y knives or Y knives on shackles, tailored to specific job site conditions or vegetation types.
Ideal for use in municipal maintenance, landscaping, forestry undergrowth control, and environmental restoration projects.
Backed by Seppi’s industry-leading build quality, offering a low-maintenance, high-performance solution for contractors who demand reliability in every job.
Detailed Specifications
Category
Specification
Brand / Series
Seppi M. / H3 Series
Model
H3 60
Attachment Type
Hydraulic Flail Mulcher for Excavators
Excavator Compatibility
3.5–5 Ton Mini Excavators (7,700–11,000 lbs)
Working Width
25 inches (60 cm)
Overall Width
28 inches (72 cm)
Overall Depth
31 inches (80 cm)
Overall Height
26 inches (66 cm)
Base Weight
330 lbs (150 kg)
Frame Material
High-Tensile, AR400 Wear-Resistant Steel
Cutting Capacity
Up to 1 inch (3 cm) diameter
Hydraulic Flow Requirement
5–13 GPM (20–50 L/min)
Hydraulic Pressure Range
2,175–3,626 PSI (150–250 bar)
Hydraulic Lines Required
3 (Pressure, Return, Case Drain)
Transmission Type
Belt Drive (3 V-belts)
Rotor Type
Triple Helical Rotor with SMW Flails
Standard Flails
SMW Flails (Qty: 6)
Optional Tools
Y Knives (Qty: 9) or Y Knives on Shackles (Qty: 12)
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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Shipping
General Shipping Info:
Instantly calculate shipping quotes to the lower 48 states by 1. adding this product to your cart, 2. click continue to the checkout page and 3. enter your shipping address to check rates. Contact us for quotes for shipping to Hawaii, Alaska, Canada, Mexico and Internationally.
Complimentary lift gate service on all freight shipments where it’s possible. We guarantee safe delivery!
Low shipping rates for customers. We have negotiated the best possible rates for customers from our trusted carriers (ODFL, ESTES, UPS, and FedEx).
Negotiate shipping rates if you think we can do better please reach out. Keep in mind some shipping rates also include assembly & configuration as well!
Customer Reviews
Overall rating: 4.7 / 5 from 104 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.
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.
Put this on Kubota 900 with winch hookup. This thing is a beast (within reason). I named it ‘Homie”, cause Homie don’t play. It will take care of stuff up to about 2” in diameter. You still have to remember that this is NOT like the ones on a bobcat or larger machinery. It does have its limits. But all in all I am very satisfied with it. Now on to the good part! The staff at Ripping It are outstanding! Especially Kayla in the office. She has gone above and beyond on making sure everything went right, from ordering to questions about installation. This young lady would be of great value at ANY company ! Her knowledge and personality are like over the top. This is my first experience with Ripping It Outdoors and I can only say positive things about them. With all that being said, I do fill out reviews on things I buy, AND I give a honest review. If it’s bad then you will know it. But if it’s good, well I tell the truth ! Again Kayla, from the bottom of my heart, a great big THANK YOU for all your help and just talking to you. I feel like we’ve know each other for years!
TENT is easy to put up , material is tuff as told....only complaint is that i wish the bottom had about 3 to 4 inches overlap towards the inside so i could install a 2 x4 or something to help hold the tent down in high winds we have here in virginia thanks