Farm King Disc Mower | Model MDN7 | Width 9'4" | Horsepower 40 To 50 HP | For Tractor
DESCRIPTION
Built for performance, durability, and ease of use, the Farm King MDN7 Disc Mower is your ultimate field companion. With a 9'4" cutting width and compatibility with 40–50 horsepower tractors, this mower is engineered for efficient, high-capacity cutting on farms, ranches, and large properties.
Whether you're maintaining hayfields or clearing pasture, the MDN7 ensures clean, consistent cuts with 14 free-swinging blades spinning at 3,000 RPM. Easy-access maintenance and precision swath shaping reduce downtime and boost productivity because your time is valuable.
Key Features
9'4" Cutting Width Disc Mower Covers more ground in fewer passes for efficient fieldwork.
Compatible with 40–50 HP Tractors Ideal for small to mid-size tractors used in hay and forage operations.
14 Free-Swinging Blades Ensures sharp, precise cuts even in dense vegetation.
Easy Maintenance Access Remove just 6 bolts to service discs and blades.
Durable 15-Inch Discs Built tough for extended lifespan in rugged terrain.
Swath Formation Technology Cone discs at both ends guide a clean, consistent swath.
Category I/II 3-Point Hitch Compatibility Quick hookup with most standard farm tractors.
Hydraulic Transport Cylinder Lift and lower mower from the tractor seat.
Automatic Locking for Transport Ensures safe, secure movement across fields and roads.
Simple Rope-Release Lowering Mechanism Intuitive design for quick deployment.
High-Torque Mowing at 540 PTO RPM Optimized for standard tractor PTOs.
Robust Frame Construction Designed for long-lasting reliability under daily use.
Ideal for Hay, Pasture & Forage Crops Perfect disc mower for agricultural professionals.
Low Profile Design Better ground hugging for clean cuts in uneven fields.
Detailed Specifications
Specification
Details
Model
MDN7
Brand
Farm King
Category
Tractor Attachments
Subcategory
Disc Mowers
Cutting Width
9'4" (2.85 m)
Number of Discs / Blades
7 Discs / 14 Blades
Disc Diameter
15 inches
Blade Type
Free-swinging, 4" long, 3" overlap
Blade Rotation Speed
3000 RPM at 540 PTO
PTO Compatibility
540 RPM
3-Point Hitch
Category I / II
Hydraulics
Single-acting cylinder
Transport Lock
Automatic, rope-release mechanism
Tractor Horsepower
40–50 HP
Weight
1,124 lbs (510 kg)
Industry Use
Hay, Forage, Pasture Management
Application
Agriculture, Land Maintenance, Hay Farming
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: 4.7 / 5 from 85 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.
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.
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?
I had a guy from a shop come cut the shafts and hook me up. It went well. I've been using the mulcher and the tractor saw on my two tractors and having fun.
i love it, i'm a little inexperianced with it but i'll learn, i've never messed with chemicals much.
instead of putting it on an atv, i put it on a skid steer
We bought a 6' G3 last year and it worked well. We were missing the handle for seed adjuster on 1st one and they next day aired it. Just ordered an 8 ' model to go with it. Dillon is great to work with. Hope this one works out as well.