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Product Description
Gearmore Sulfur Vineyard Duster | Model S420 | 37" Width | Category I & II 3-Point Hitch | 20–35 HP | For Tractor
DESCRIPTION
The Gearmore S420 Sulfur Vineyard Duster is a high-performance agricultural dusting machine designed specifically for narrow-row vineyards and specialty crop applications. Featuring a generous 300 lb. hopper capacity, this tractor-mounted sulfur duster delivers efficient and consistent powder distribution across row spacings of 6–8 feet. Its durable all-gear drive system provides dependable performance with minimal maintenance, while the mechanical agitation system ensures a steady, uniform material flow. The powerful 15 3/4" fan generates wind velocities of up to 150 MPH, promoting effective sulfur coverage throughout the crop canopy. Operators benefit from adjustable fishtail distribution nozzles, convenient manual application-rate control, and an accessible lever for switching dust application on and off directly from the tractor seat. Built for professional vineyard management, the Gearmore S420 combines practical operation, reliable construction, and efficient sulfur application.
Key Features
300 lb. Large-Capacity Hopper: Handles up to 300 lbs. of dusting material, reducing frequent refilling and supporting extended vineyard treatment operations.
Narrow-Row Vineyard Design: Specifically engineered for 6–8 ft. row spacing, making it an excellent choice for narrow-row vineyards and specialty crop applications.
All-Gear Drive System: Features a reliable mechanical gear-drive design that delivers consistent operating performance while minimizing maintenance requirements.
150 MPH Wind Velocity: Generates powerful airflow to help distribute sulfur dust effectively throughout vineyard foliage and crop canopies.
15 3/4" Fan Diameter: Equipped with a dedicated fan system designed to produce strong airflow for efficient agricultural dust distribution.
Mechanical Agitation System: Promotes consistent material movement inside the hopper, helping maintain an even flow and reducing irregular material discharge.
Adjustable Fishtail Nozzles: Allows operators to adjust the distribution pattern for improved application coverage across vineyard rows.
Manual Application-Rate Control: Provides convenient adjustment of sulfur application rates to accommodate different crop treatment requirements.
Tractor-Seat Lever Control: Allows the operator to conveniently turn dust application on or off and adjust application settings from the tractor seat.
Durable Polyethylene Hopper: Features a large-capacity hopper construction designed for practical agricultural use and convenient material handling.
Tubular Steel Support Frame: Wraparound tubular steel frame provides structural support and helps isolate and protect the hopper assembly.
Heavy-Duty Fan Construction: Combines an aluminum fan housing with a steel turbine fan for dependable operation in agricultural environments.
20–35 HP Tractor Compatibility: Designed for use with tractors in the 20–35 horsepower range, making it suitable for a variety of vineyard tractor setups.
Category I & II Hitch Compatibility: Designed for three-point hitch mounting, providing compatibility with supported Category I and Category II tractor configurations.
Efficient Sulfur Application: Combines adjustable distribution, controlled material flow, and high-velocity airflow to support productive vineyard dusting operations.
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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.
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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.