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MechMaxx  |  SKU: 150207

MechMaxx 78" Heavy Duty PTO Flail Mower with Hydraulic Side Shift, 3-Point Hitch, 50–85HP, Model KDK78H

Regular price $4,099.00
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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

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Built like a tank VERIFIED
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Built like a tank

It handles my F-250 like it's nothing. 12,000 lb capacity gives me confidence with the heavy trucks. Best investment I've made for my garage.

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Kevin Durk

Dallas, TX

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Best investment for my garage VERIFIED
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Best investment for my garage

I've always worried about dust, moisture, and dings. This solved all of that. The airflow keeps everything clean and dry inside.

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Mike Johnson

Houston, TX

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Easiest garage upgrade I've ever done VERIFIED
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Easiest garage upgrade I've ever done

These tiles just snap together, no glue, no tools, no prep. Whole two-car garage done in one afternoon. Cleans up with just a hose.

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Sarah Wallis

Tampa, FL

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Worth every penny VERIFIED
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Worth every penny

Bought the MEC10 to dig trenches on my property. Compact enough to fit through my gate but digs almost 66 inches. Saved me thousands vs. hiring out.

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Chicago, IL

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