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MechMaxx 78" Heavy Duty PTO Flail Mower with Hydraulic Side Shift, 3-Point Hitch, 50–85HP, Model KDK78H
SKU: 150207 | Model: KDK78H
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The MechMaxx KDK78H flail mower is designed for high-output mowing where durability, reach, and efficiency are critical. With a wide 78-inch cutting path and hydraulic side offset capability, this mower is ideal for large fields, roadside maintenance, fence lines, and perimeter work.
Built for 50–85 HP tractors, the KDK78H combines a reinforced steel frame, premium drivetrain components, and advanced belt system to deliver consistent performance across demanding terrain and dense vegetation.
Key Features & Benefits
- 78" Working Width – maximizes coverage for faster mowing on large properties and commercial applications
- Hydraulic Side Offset (Up to 13.4") – shift the mower left or right to reach beyond tractor width for edge trimming and obstacle clearance
- Heavy-Duty PTO System (1-3/8" Z6, 540 RPM) – ensures universal compatibility and reliable power transfer
- Spring-Loaded Automatic Belt Tensioner – maintains consistent belt tension to improve efficiency and extend component life
- Category 2, 3-Point Hitch – provides a rigid, stable connection for higher horsepower tractors
- Designed for tractors in the 50–85 HP range
- Handles thick grass, weeds, and overgrown vegetation
- Ideal for large acreage, roadside work, and heavy-duty land maintenance
- Produces a cleaner, mulched finish compared to rotary cutters
- Italian CMR Gearbox – efficient power transmission with reduced wear and long service life
- SKF External Rotor Bearings – high-quality bearings designed for heavy loads and smooth operation
- Heavy-Duty Steel Frame – built to handle continuous use in demanding environments
- Adjustable Rear Roller with Scraper – provides precise cutting height control and improved debris management
- Height-Adjustable Side Skids – protects ground surfaces and improves stability on uneven terrain
- Openable Rear Cover – allows quick access for blade maintenance and clearing debris
| Specifications | Details |
|---|---|
| Model | KDK78H |
| Tractor Requirement | 50–85 HP |
| Working Width | 78 in |
| Hitch Type | Category 2 |
| PTO Speed | 540 RPM |
| PTO Shaft | 1-3/8" Z6 |
| Side Offset | Up to 13.4 in |
| Flail Type | Hammer |
| Number of Flails | 18 |
| Drive Type | Belt Drive |
| Gearbox | Italian CMR |
| Bearings | SKF External Bearings |
| Structure Weight | ~1,160 lbs |
Documents
Assembly
What Our Customers Say
Built like a tank
It handles my F-250 like it's nothing. 12,000 lb capacity gives me confidence with the heavy trucks that come through my shop. Installation was smooth and the build quality is commercial grade all the way. Best investment I've made for my garage.
Best investment for my garage
I've always worried about dust, moisture, and dings in my garage. This solved all of that. The airflow system keeps everything clean and dry inside, Easy to set up and worth every dollar.
Easiest garage upgrade I've ever done
I was nervous about installing flooring myself but these tiles just snap together no glue, no tools, no prep work. Had my whole two-car garage done in one afternoon. It looks incredible and cleans up with just a hose. Should've done this years ago.
Worth every penny
Bought the MEC10 with the Honda GX390 engine to dig trenches and do some grading on my property. It's compact enough to fit through my backyard gate but still digs down to almost 66 inches. The Honda engine fires right up every time. Saved me thousands vs. hiring out.
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