78" Farm-Maxx Disc Harrow - DH52020

Farm-Maxx DH52020 Disc Harrow (20 Blade, 20")

The Farm-Maxx DH52020 is the largest disc harrow in the DH-500 series — 20 notched blades on 20-inch discs across a 6½-foot working width. Built on a heavy 3×3" tubular steel frame, this harrow is made for serious seedbed prep, food plot work, pasture renovation, and residue incorporation on mid-size tractors from 40 to 60 HP. The bigger 20-inch blades cut deeper and turn more soil per pass than the 18-inch models, and at roughly 1,000 lbs, the DH52020 has the weight to bite into hard ground without needing added ballast.

Features

• 20 Notched Disc Blades (20" Diameter)
  High-carbon steel notched blades at 3.5mm thickness cut aggressively through compacted soil, sod, crop residue, and root mass. The 20" size gives you deeper penetration than 16" or 18" models.
• 6½-Foot Working Width
  Wide enough to cover ground efficiently, compact enough to maneuver through gates and between obstacles on smaller farms and homesteads.
• 7½" Blade Spacing
  Close spacing ensures thorough soil mixing and residue chopping with no untilled strips between blades.
• Fully Adjustable Slide-Gang System
  Front and rear gangs adjust independently via a precision slide system. Set a steep angle for aggressive initial breakup or flatten out for light finishing and leveling — no tools required to change on the fly.
• 3×3" Heavy-Wall Tubular Steel Frame
  The DH-500 series uses larger frame tubing than the DH-400 models for added rigidity and strength under heavy loads and hard ground conditions.
• Swaged and Forged 1" Axles
  One-inch square axle shafts run through the blades with no flex, even in hard-packed or rocky soil. Swaged and forged construction handles repeated impact loads.
• Sealed Long-Life Ball Bearings
  Maintenance-friendly sealed bearings keep dirt and moisture out for extended service life between replacements.
• Category I/II 3-Point Hitch
  Fits both Cat I compact tractors and Cat II utility tractors. Quick-hitch compatible for fast hookup.
• High-Stress Tubing Gang Arms
  Gang hanger arms are built from high-stress tubing specifically engineered to resist twisting under load — a common failure point on lighter harrows.

Specifications