The Sheyenne Sunmaster Harvest Header is engineered for maximum efficiency in sunflowers, milo, and no‑till corn, delivering 6–30% more harvested crop from the same acres. Its low‑profile design, extended row dividers, and rear‑mounted rotary cutting knife lift lodged, broken, or excessively dry plants with exceptional precision. A vibrating rocker arm gently shakes each catch pan, ensuring shattered seeds and loose heads fall back into the hopper instead of the ground. With single‑ or double‑drive configurations, the Sunmaster reduces moving parts for lower maintenance and improved reliability. The universal adaptor frame allows fast hookup to most combines, while optimized cutting heights—11.25" cutter head, 17" catch pan height, and 5.25" chain clearance—enhance residue management and reduce erosion. Built for durability, productivity, and cleaner harvests, the Sunmaster remains the world’s most trusted header for tough row‑crop conditions.
Key Features
High‑capacity crop harvesting Designed to capture 6–30% more yield by efficiently gathering sunflowers, milo, and no‑till corn, even in lodged or brittle conditions.
Low‑profile header design Streamlined geometry lifts downed crops cleanly while minimizing grain loss and improving feeding consistency.
Rear‑mounted rotary knife Positioned behind the gathering chains to ensure uniform feeding, reduced plugging, and cleaner cutting in dry or tangled crops.
Vibrating rocker arm system Gently vibrates catch pans so shattered seeds and loose heads fall back into the hopper instead of the ground.
Extended lightweight row dividers Lift lodged milo and leave taller stubble to reduce erosion and improve soil protection for spring planting.
Universal combine adaptor Quick‑connect frame fits most major combine brands for fast, hassle‑free hookup.
Single‑drive efficiency One gathering chain per row reduces moving parts by half, lowering maintenance and improving long‑term reliability.
Double‑drive power options Available on larger models for enhanced torque, smoother feeding, and improved performance in heavy crop loads.
Optimized cutting heights 11.25" cutter head, 17" catch pan height, and 5.25" chain clearance ensure precise crop engagement.
Improved residue management Cuts and processes trash for better spring planting conditions and enhanced weed control.
Ideal for no‑till corn Efficiently handles stover, enabling baling for livestock feed or bedding.
Color‑matched powder coat Choose paint that matches your combine for a clean, professional appearance.
Multiple row spacing options Available in 20", 22", and 30" configurations to match your cropping system.
Heavy‑duty construction Built with robust materials to withstand demanding harvest environments.
Reduced grain loss Large catch pans and optimized vibration system ensure more seed reaches the hopper.
Detailed Specifications
Specification
00‑016‑624
00‑016‑625
Row Count
8 Rows
12 Rows
Row Spacing
30"
30"
Header Width
20 ft
30 ft
Drive Type
Single Drive
Single Drive
Weight
3,740 lbs
5,568 lbs
Cutter Head Height
11.25"
11.25"
Catch Pan Height
17"
17"
Chain Clearance
5.25"
5.25"
Crop Compatibility
Sunflowers, Milo, No‑Till Corn
Sunflowers, Milo, No‑Till Corn
Frame Adaptor
Universal
Universal
Specification
00‑016‑630
00‑016‑621
Row Count
16 Rows
12 Rows
Row Spacing
30"
22"
Header Width
40 ft
23.25 ft
Drive Type
Double Drive
Single Drive
Weight
7,450 lbs
5,247 lbs
Cutter Head Height
11.25"
11.25"
Catch Pan Height
17"
17"
Chain Clearance
5.25"
5.25"
Crop Compatibility
Sunflowers, Milo, No‑Till Corn
Sunflowers, Milo, No‑Till Corn
Frame Adaptor
Universal
Universal
Specification
00‑016‑622
00‑016‑623
Row Count
16 Rows
18 Rows
Row Spacing
22"
22"
Header Width
31 ft
33 ft
Drive Type
Double Drive
Dual Drive
Weight
6,503 lbs
7,300 lbs
Cutter Head Height
11.25"
11.25"
Catch Pan Height
17"
17"
Chain Clearance
5.25"
5.25"
Crop Compatibility
Sunflowers, Milo, No‑Till Corn
Sunflowers, Milo, No‑Till Corn
Frame Adaptor
Universal
Universal
Specification
00‑016‑626
00‑016‑627
Row Count
12 Rows
16 Rows
Row Spacing
20"
20"
Header Width
20 ft
26.67 ft
Drive Type
Single Drive
Double Drive
Weight
5,468 lbs
6,168 lbs
Cutter Head Height
11.25"
11.25"
Catch Pan Height
17"
17"
Chain Clearance
5.25"
5.25"
Crop Compatibility
Sunflowers, Milo, No‑Till Corn
Sunflowers, Milo, No‑Till Corn
Frame Adaptor
Universal
Universal
Specification
00‑016‑628
Row Count
18 Rows
Row Spacing
20"
Header Width
30 ft
Drive Type
Double Drive
Weight
7,168 lbs
Cutter Head Height
11.25"
Catch Pan Height
17"
Chain Clearance
5.25"
Crop Compatibility
Sunflowers, Milo, No‑Till Corn
Frame Adaptor
Universal
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 86 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.
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?
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.