Farm King Disc Mowers | Model MDN-6 | Working width 8' 1" | Weight 1,058 Lbs | Horsepower 45 HP | For Tractors
DESCRIPTION
Built for serious haymakers, the Farm King MDN6 Disc Mower delivers clean, precise cuts and dependable performance for midsize tractors. Engineered with top-grade steel and high-durability gear components, this mower is designed to thrive in rugged field conditions and minimize downtime with a straightforward maintenance design.
Whether you're managing a family farm or a growing operation, the MDN6 is your go-to solution for fast, accurate mowing across pastures, hayfields, and more. The six-disc system with free-swinging blades spins at 3000 RPM, providing sharp and even cuts every time even through thick or tangled crop material.
Transport and control are effortless thanks to a hydraulic lift system and automatic transport lock, allowing you to raise and lower the mower from the seat of your tractor with ease. Built for tractors with a minimum of 45 horsepower, this machine balances power, performance, and reliability in a compact 1,058 lb package.
Key Features
Heavy-Duty Construction Built with premium-grade steel and sealed gearboxes for long-term durability in tough field conditions.
Wide 8' 1" Cutting Path Covers more ground in less time, ideal for medium to large-scale hay operations.
Precision Mowing Performance 6 free-swinging discs rotate at 3000 RPM to ensure an even, smooth cut across all terrains.
Sharp, Overlapping Blades 4" long blades with 3" overlap eliminate uncut strips and deliver clean swaths.
Simple Maintenance Access Remove just six bolts to access cutting discs and blades — saves time in the field.
Hydraulic Lift System Adjust mower position directly from the tractor seat with a single-acting hydraulic cylinder.
Transport Mode with Locking Mechanism Switch to transport position safely and securely in seconds.
Efficient Swath Formation Built-in cone discs on either end help shape and direct hay rows for faster drying.
3-Point Hitch Compatible Designed for Category I and II 3-point hitches for flexible tractor compatibility.
Optimized for 45 HP Tractors Perfect match for compact and utility tractors in the 40–50 HP range.
PTO Powered at 540 RPM Connects to standard rear PTO systems for plug-and-play mowing.
Compact Yet Powerful At just 1,058 lbs, the MDN6 delivers industrial performance in a manageable size.
Field-Tested Blade Speed Reaches 3000 RPM for optimal cutting performance, even in heavy or wet crop conditions.
Built for Versatility Ideal for hay, pasture, alfalfa, and mixed forage mowing.
Designed for Longevity Minimal moving parts, sealed systems, and easy-access components reduce service intervals and extend operational life.
Detailed Specifications
Specification
Details
Model
MDN6
Mower Type
Rear-Mounted, 3-Point Hitch
Cutting Width
7 ft
Working Width
8' 1" (2.45 m)
Number of Discs / Blades
6 / 12
Blade Rotation Speed
3000 RPM
PTO Speed
540 RPM
3-Point Hitch Category
Cat. I / II
Tractor Requirement
45 HP (33 kW) minimum
Weight
1,058 lbs (480 kg)
Hydraulics
Single-Acting Cylinder
Transport Lock
Automatic
Blade Type
Free-Swinging, Overlapping
End Cone Discs
Included (Swath Forming)
Manuals & Documents
General Warranty Info:
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!
Videos
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: 4.6 / 5 from 96 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.
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.
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
Hi, my name is Ken. I’ve had a great experience with Ripping It Outdoors. I purchased a Forax Hp40 Mulcher for my mini excavator. Kayla Patterson is who I dealt with from the beginning until I received it at my house. She has been wonderful to work with and looking forward to working with her with any other orders I purchase. Kayla answered any questions I had and kept me updated throughout the whole process, can’t say it enough just a wonderful person to work with!!
These are great feeders if you don’t have any feral hogs but if the hogs tear off the wiring harness from the timer to the feeder motor, you’re disabled. Then, if you ask for help from Outback, they refer you to the dealer but really you’re on your own for parts and repairs.
I have three Outback feeders that work as designed. They’re 13 years old and have always served well but this feeder misses the mark by a very high margin. I’d NEVER buy this product again.
Feeders need to be dependable and this unit is not.
This is my first experience with Ripping It Outdoors. Fortunately I got Dillion as a representative and everything from sales to shipping was spot on..
Thanks Dillion for your help!!
The only thing is when hooking up the actuator on my ATV. The wire is long going to the plug in. What has happened in the past about this. Is their video showing the usage of the control?