Seppi Flail Mulcher | Model SMWA 155 & 175 | Working Width 61" & 69" | 13-24 GPM | For Mini & Compact Track Loaders
DESCRIPTION
The Seppi SMWA Flail Mower is the gold standard in hydraulic mulching attachments for compact loaders. Engineered for professionals in agriculture, landscaping, municipal maintenance, and land clearing, this compact yet robust mulcher easily tackles grass, light brush, and prunings up to 2 inches (5 cm) in diameter.
Whether you're maintaining vineyards, clearing roadside vegetation, or restoring overgrown orchards, the SMWA delivers clean, even mulching results thanks to its helical rotor with SMW flails, floating skid steer interface, and high-tensile S420 steel chassis.
Available in two models SMWA 155 (61") and SMWA 175 (69") this flail mower is built to handle real-world demands with optimal hydraulic flow between 13–28 GPM and pressure ranges up to 4,350 PSI.
If you’re looking for a dependable mulcher that performs season after season, the SMWA is your compact loader’s best companion.
Key Features
Mulches vegetation up to 2 inches (5 cm) in diameter ideal for clearing grass, orchard prunings, brush, and small saplings with clean, consistent results.
Compatible with mini and compact track loaders requiring 13 To 28 GPM hydraulic flow, making it an efficient solution for landscape contractors, farmers, and municipalities.
Built from high-tensile S420 steel, the reinforced chassis withstands demanding terrain and heavy-duty use in vineyards, parks, pastures, and roadside maintenance.
Features a floating SAE universal skid steer interface that follows ground contours for even mulching and reduced scalping, ideal for uneven terrain and sloped ground.
Available in two working widths 61" (SMWA 155) and 69" (SMWA 175) to suit a variety of loader sizes and job requirements.
Fitted with a triple helical rotor and SMW flails, delivering smoother operation, reduced vibration, and a finer mulch consistency for cleaner finished surfaces.
Optional Y DUO knife rotor configuration allows users to adapt the mulcher to lighter vegetation or fine finishing tasks.
Heavy-duty belt transmission system (3 belts on 155, 4 on 175) ensures reliable power transfer from hydraulic motor to rotor, improving longevity and performance.
Features two rows of tempered counter cutters inside the housing for enhanced shredding of fibrous or woody material ideal for orchard floor clearing and maintenance.
Includes an adjustable rear hood with rubber flap to control mulching output and particle size, enhancing safety and jobsite customization.
Integrated adjustable support roller with reinforced bearings provides height control, ground support, and wear resistance over time.
Weighs only 980 lbs (445 kg) for SMWA 155 and 1,090 lbs (496 kg) for SMWA 175, making it suitable for smaller skid steers without compromising performance.
Pre-configured for VARIO-FLOW hydraulic motors and supports variable displacement motor options for tailored hydraulic compatibility.
Requires a 3-line hydraulic system (pressure, return, case drain) to maintain optimal performance and protect the drive motor under high load conditions.
Ideal for professionals performing green space maintenance, roadside vegetation clearing, agricultural mulching, and right-of-way management, combining durability, efficiency, and cutting-edge engineering.
Detailed Specifications
Specification
SMWA 155
Working Width
61" (155 cm)
Overall Width
66" (167 cm)
Cutting Diameter Capacity
Up to 2" (5 cm)
Flail Type (Standard)
SMW Flails
Number of SMW Flails
15
Optional Rotor Configuration
Y DUO Knives (27 flails)
Rotor Type
Triple Helical (HELIX) Rotor
Hydraulic Flow Range
13 To 24 GPM (50 To 91 l/min)
Hydraulic Pressure Range
2,175 To 4,350 PSI (150 To 300 bar)
Case Drain Required
Yes
Required Hydraulic Hoses
3 (Pressure, Return, Case Drain)
Machine Compatibility
Mini Loaders (25+ HP)
Transmission Type
Belt Drive (3 Belts)
Chassis Material
High-Tensile Steel S420
Attachment Interface
SAE Universal Skid Steer (Floating)
Support Roller
Adjustable Height, Reinforced Bearing
Adjustable Rear Hood
Yes, with Rubber Flap
Front Protection
Metal Flaps
Counter Cutters (Internal)
2 Rows Tempered Steel
Height
37" (95 cm)
Depth
35" (90 cm)
Base Weight (Without Options)
980 lbs (445 kg)
Color
Red (RAL 3020) & Charcoal (RAL 7021)
Working Speed
3–10 km/h (1.8–6.2 mph)
Motor Type Compatibility
Prepared for VARIO-FLOW motors
Optional Accessories
Y DUO flails, Roller Scraper, Universal Loader Interface, Variable Displacement Motor
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Specification
SMWA 175
Working Width
69" (175 cm)
Overall Width
74" (187 cm)
Cutting Diameter Capacity
Up to 2" (5 cm)
Flail Type (Standard)
SMW Flails
Number of SMW Flails
18
Optional Rotor Configuration
Y DUO Knives (33 flails)
Rotor Type
Triple Helical (HELIX) Rotor
Hydraulic Flow Range
16–28 GPM (60–105 l/min)
Hydraulic Pressure Range
2,175–4,350 PSI (150–300 bar)
Case Drain Required
Yes
Required Hydraulic Hoses
3 (Pressure, Return, Case Drain)
Machine Compatibility
Compact Loaders (50–100 HP)
Transmission Type
Belt Drive (4 Belts)
Chassis Material
High-Tensile Steel S420
Attachment Interface
SAE Universal Skid Steer (Floating)
Support Roller
Adjustable Height, Reinforced Bearing
Adjustable Rear Hood
Yes, with Rubber Flap
Front Protection
Metal Flaps
Counter Cutters (Internal)
2 Rows Tempered Steel
Height
37" (95 cm)
Depth
35" (90 cm)
Base Weight (Without Options)
1,090 lbs (496 kg)
Color
Red (RAL 3020) & Charcoal (RAL 7021)
Working Speed
3–10 km/h (1.8–6.2 mph)
Motor Type Compatibility
Prepared for VARIO-FLOW motors
Optional Accessories
Y DUO flails, Roller Scraper, Universal Loader Interface, Variable Displacement Motor
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 107 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.