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Kuhn 5805-15

Model 5805-15 for sale at Rusler Implement, Colorado

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Gang Design

5805 offset disc harrow gangs feature 26” or 28” diameter blades mounted on Rock-Flex or rigid bearing arms and feature PEER® TILLXTREME™ maintenance-free bearings. Gang angles are pin-stop adjustable from 16 to 24 degrees. A ratchet-jack, located on the rear gang, allows side-to-side gang adjustment to fine-tune performance. Front and rear gangs feature tapered blades to provide a level pass-to-pass finish. Bolt-on extension spool and furrow filler blades are standard equipment on 5805 discs, so inadvertently hitting an obstacle doesn’t damage the entire gang.

Residue Razor™ Disc Blades

All KUHN Krause tandem disc harrows feature Residue Razor disc blades that are engineered with a unique Boron steel optimizing strength to withstand stress, fractures, and to provide flexibility in rock conditions. Residue Razor discs have an exceptionally sharp edge, five times sharper than conventional blades.


KUHN Krause heavy-cast spools multiply the strength of the disc gang. Spools are line-bored for an exact fit on the tie rod and precision faced to perfectly match the blade surface. A larger bell on the concave end and a smaller bell on the convex end provide an overlap fit against the blades, supporting the blade more positively without creating a stress line.

Rugged Scrapers

The 6 ½”, paddle-type, flat-blade scrapers are mounted individually on a scraper bar. The scrapers and bar may be adjusted for varying soil conditions.


Frame Design

  • Top of Form: Massive main frame beams are 6’ x 8’ x 3/8” structural steel with gang beams of 4” x 10” material, providing ultimate strength and rigidity.
  • Bottom of Form: The massive tongue features a handy “wrenchless” adjustment with seven different settings, making it easy for the operator to set the 5805 for the correct draft. The rocker shaft design utilizes hydraulic cylinders that act directly on each wheel arm, reducing frame stress and torsion.



Metric Tires

280/70R15 metric tires have been incorporated into the 5805 for additional weight carrying capacity at lower operating pressures.


Model 5805-15
Transport Width (ft/m) 16'7" / 5.1
Frame Type Rigid
Number of Disc Blades 39
Number of Bearing Arms 10
Approximate Working Width (ft/m) 15'5" / 4.7
Approximate Weight (lbs/kg) 8,759 / 3 973
Disc Blade Spacing (in/cm) 10" Front / 10" Rear
Disc Gang Angle Adjustable Gang Angle 16 to 25 Degrees
Hitch Type CAT IV Articulating Ball Hitch, 2" Pin
Tongue Adjustable, 6 position tongue
Hydraulics Royal Plate Plus® Cylinder Rods, Color Coded Hose Grips, Male ISO Couplers on Hydraulic Hoses
Depth Control Crank-Style Single Point Hydraulic Depth Control, Two 4" x 10" Cylinders
Disc Gangs 1-3/4" Round Diameter Alloy Tie Rod, Ductile Iron Spools, Rigid Bearing Arms, PEER® TILLXTREME™ Maintenance Free Bearings
Disc Blades 26" x 1/4" Residue Razor® Solid Edge Front and Rear
Taper Blades Front 26" - 24", Rear 26" - 24" - 22" - 20" Bolt-On Furrow Filler
Disc Scrapers Heavy-Duty Adjustable 6-1/2" Scrapers
Center Section Tires Four 280/70R15 Tires, Duals, 6-Bolt Heavy Duty Hubs
Transport Locks and Safety Tongue Jack, Slow Moving Vehicle Sign, High Visibility LED Transport Light Kit, Safety Chain
Hitch Type CAT III Articulating Ball 1-1/2" Pin
Disc Blades 26" x 1/4" Notched Edge Front and Rear
Disc Blades 26" x 1/4" Notched Edge Front 26" x 1/4" Residue Razor® Solid Edge Rear
Disc Blades 28" x 5/16" Residue Razor® Solid Edge
Disc Blades 28" x 5/16" Notched Edge Front and Rear
Disc Blades 28" x 5/16" Notched Sharp Edge Front
  28" x 5/16" Residue Razor Solid Edge Rear
Taper Blades Front 26" - 24", Rear 26" - 24" - 22" - 20" Bolt-On Furrow Filler
Taper Blades Front 28" - 26", Rear 28" - 26" - 24" - 22" Bolt-On Furrow Filler
Bearing Guards Rigid Arms Only (10)
Bearing Guards Rigid Arms Only (12)
Recommended Operating Speed (mph/km/h) 4 - 6 / 6 - 12
Recommended Maximum Working Depth (in/cm) 5" - 10" / 12.7 - 25.4 cm
Recommended Tractor Power Range (mph/kw/h) 8 - 12 PTO HP Per Foot / 6 - 9 kW