Case IH DC93

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DC93 Rotary Disc Mower Conditioners Features

The Most Reliable Rotary Disc Cutterbed Anywhere

  • A modular cutterbar design with superior crop flow, resulting in less streaking
  • A heavy-duty frame and rugged canopy that have a cantilevered design for smooth crop flow across the cutterbar
  • Shock hubs, now standard on all four models of DC2 rotary disc mowers
  • Roll and flail conditioning options available on all models


Shock Hubs

​​Shock hubs are now standard on all four models of DC Series rotary disc mower conditioners. The system replaces the drive hub of discs with a shock hub, making in-field repairs fast and easy.

  • Helps prevent time-robbing, expensive field failures when an obstruction is encountered
  • Shock hub “takes the blow” from collisions with rocks and debris
  • Protects internal components of the cutterbed


Disc Modules

  • Bearings, gears and lubricant for each disc module are individually sealed — damage to one module does not spread to another
  • Modular design ensures complete gear lubrication, even when cutting on slopes
  • Two heavy-duty knives on each disc spin at 3000 rpm to slice through heavy crops
  • Knives are reversible for twice the cutting life
  • One bolt per knife allows for quick flipping or replacing of knives from the front of the cutterbed — without raising the header
  • The steep profile design lifts the crop directly into conditioning rolls
  • Discs are austempered for extra hardness and durability in punishing conditions


Bale or Chop Sooner

  • ​Spiral steel-on-steel or rubber-on-rubber conditioning rolls provide fast drydown
  • Saves time in the field by clearing slugs automatically
  • Allows for easy changes in conditioning intensity
  • Custom-built windrows or swaths
  • Spread the crop out in a wide, fast-drying swath
  • Form the crop into a narrow, fluffy windrow that’s ready for baling or chopping
  • All adjustments to the swathboard, windrow shields and fluffing baffle can be made without tools​


Conditioning Rolls

  • ​Torsion-bar design
  • Applies equal force to the upper conditioning roll arms
  • Provides uniform conditioning, regardless of crop thickness
  • Intermeshing spiral conditioning rolls have superior crimping and crushing action for faster drydown
  • Rubber-on-rubber conditioning rolls are standard on DC92, DC102 and DC132
  • Rugged steel-on-steel rolls are standard on DC162, optional on DC102 and DC132
  • Easily handle higher crop volume and faster ground speeds
  • No-tools crank adjustment
  • Changing conditioning roll pressure is quick and easy for greater productivity
  • The system releases pressure when the upper roll reaches its maximum opening


Flail Conditioning

  • Now available with all models.
  • Uses tapered flails to pick up crop and rub it together and against the conditioning hood
  • Faster drydown because the waxy layer on the stems is removed and moisture is released quickly
  • Straight flails release crop more easily than competitive systems
  • Produce a more uniform crop mat that lays on top of the stubble
  • Results in better air circulation in the windrow and more thorough drying


Model DC93 (2019-Present)
Tongue Type Side Pull, straight tongue
Cutter Bar  
Cutting Width, ft in (m) 9' 2" (2.8)
Cutting Height, in (mm) 1.1 to 2.7 (29 to 68) std.; 2.3 to 4.5 (58 to 115) opt.
Cutter Bar Tilt Angle, degrees 2 to 10
Cutter Bar Lubrication Sealed independent disc modules
Number of Discs 7
Number of Knives per Disc 2
Disc Speed, rpm 3000
Disc Cutting Diameter, in (mm) np
Disc Drive Components Shafts w/bevel gears
Flotation Up & back, adjustable springs
Windrow / Swath Width, ft-in (m) Windrow 3 to 6 (0.9 to 1.83); Swath 6 (1.83)
Conditioner Type Rubber rolls or flail tines
Conditioner Drive 4 HB v-belt; rolls also have enclosed gears
Roll Conditioner  
Roll Length, in (mm) 90 (2286)
Roll Diameter, in (mm) 10.4 (264)
Roll Speed, rpm 647
Roll Material Type Rubber
Alternate Roll Material type No alternate
Roll Surface Pattern, standard Chevron intermeshing
Flail Conditioner  
Rotor Length, in (mm) 90 (2286)
Rotor Diameter, in (mm) 22 (560)
Rotor Speed, rpm 718 std.; 1000 opt.
Number of Flails 90
Flail Shape Tapered
Tractor Requirements  
Tractor PTO Minimum Hp (kW) 65 (49)
PTO Rated Speed, rpm 540
Hookup to Tractor drawbar Standard pin, tractor drawbar Category 2
Hookup to Tractor Hitch Lift Arms No option
Tractor Hitch size No option
Number of Hydraulic Remotes 2
Hydraulic Relief Pressure, psi (bar) 1500 (103)
Transport Width, ft-in (m) 9' 11" (3.02)
Transport Length, ft-in (m) 17' 7" (5.36) w/rolls; 18' 1" (5.51) w/flail tines; add 2' (0.61) for swivel
Transport Height, ft-in (m) 5' 8" (1.73)
Ground Clearance, in (mm) 17 (432)
Weight w/ Roll Conditioner, lbs (kg) 3,740 (1697) rubber rolls; add 100 (45) for steel
Weight w/ Flail Conditioner, lbs (kg) 3,690 (1674) w/std. drawbar; add 150 (68) for swivel hitch
Tire Size 9.5Lx14L, 6PR
Sales Literature  
Literature number CIH18082202
Literature date 8/1/2018
Other Documentation  
Document Number --
Document Date --
Entry Date  
Manufacturing Status Current
First Entry Date 8/26/2018
Revision Date --
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