Case IH True-Tandem 345

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True-Tandem Disk Harrow 345 Highlights

•Available in 5 single fold sizes: 22 ft (6.7 m), 25 ft (7.6 m), 28 ft (8.5 m), 31 ft (9.4 m), and 34 ft (10.4 m)
•Symmetrical, 18 degree gang angle and equal number of blades on either side of machine, providing uniform pulling pressures and residue mixing
•Earth Metal Disk Blades, 30% stronger other industry blades, providing durability and decreased downtime
•New gang mounting design with new plate and bolt, and cast-iron nodular spools
•Increased frame strength with 16 inches of length added to the tough pull through frame design, welded cylinders, and frame-mounted rockshaft and gauge wheels
•Active Hydraulic Double-edge Rolling Reel for improved soil conditioning​


Agronomic Design™ Features

True-Tandem disk harrow technology combines uniformly distributed pull forces with exclusive Earth Metal blades for optimal tillage performance, even in the roughest of fields. Built on proven Agronomic Design principles, our disk harrows help you effectively manage soil and residue without compaction. Slice through tough residue, uproot root balls and level the soil to create the best possible seedbed for your crop.

Crop Residue Management

  • Control residue size and distribution to promote faster breakdown and nutrient cycling
  • Ultimate disk harrow technology to manage residue from a multitude of crops
  • The Crumbler puts the final touches on the seedbed
  • Precise depth adjustment allows for greater control over soil residue cover at planting to fit a wide range of soil types, topographies and management objectives


Soil Tilth

  • Break through crusty, sealed-over soils to achieve the proper balance of minerals, air and water
  • The 18-degree gang angle matches blade concavity for thorough soil mixing and leveling
  • Promote a better seedbed finish without the excessive compaction typical of heavier disks
  • Helps reduce residue hair-pinning, resulting in better seed-to-soil contact and stand establishment


Seedbed Conditioning

  • Put the finishing touches on fields by sizing clods and increasing the soil’s contact with residue for maximum decomposition
  • Provide a uniform seedbed depth and temperature, contributing to early, even plant emergence


Durable True-Tandem Frame

Improve balance and stability in the field with the True-Tandem frame design. The combination of mirror-matched gangs and a rugged, low-maintenance pull-through frame eliminate drift and accommodate higher ground speeds compared with the traditional double-offset frame. LED lights and a high-quality powder coat paint finish keep you in the field longer and your equipment looking good for years to come.

Mainframe and Wings

  • Provide exceptional center of gravity and balance
  • Designed with gusset plates to maximize strength and stress distribution
  • Deliver more uniform weight per blade
  • Increased length over competitive equipment improves overall balance and fore and aft leveling
  • Overlapping weld design and welded cylinders improve durability while reducing maintenance and the chance of leaking


Greaseless Bearings

  • Featured on wing pivots, rockshafts and the Crumbler
  • Reduces routine maintenance, keeping you in the field longer


Durable Design Attributes

  • LED lights are brighter and longer-lasting than incandescent lamps
  • The Class 3 powder coat paint finish retains color longer and is more scratch resistant

Level the Growing Field

Work the soil you want to work. The lineup of True-Tandem disk harrows engages soil to your intended depth without disrupting soil density below the operating depth. It’s a system that’s proven to provide more consistency, even as soil types change across the field. And thanks to an intuitive depth adjustment system, you easily can adjust depth control and leveling to meet the needs of your conditions and fields.

Single-point Hydraulic Depth Control

  • Easily adjust operating depth with a single hand crank conveniently located at the front of the machine
  • Helps adjust to adverse conditions, such as wet, muddy soil
  • The system holds a constant blade operating depth to provide a uniform seedbed depth temperature, contributing to early, even plant emergence
  • Optional hydraulic front-to-back leveling allows quick operator reaction to changes in field conditions
  • View the gauge from the cab to easily return to your pre-adjusted position


Make Case IH
Model True-Tandem 345
Disk harrow type, Tandem or Offset Tandem
Folding (Multi-Section) or Non-Folding Single-fold
Dimensions and Weights  
Working width, minimum, ft-in (m) 22' 2" (6.76)
Working width, maximum, ft-in (m) 34' 1" (10.39)
Transport width, minimum, ft-in (m) 14' 6" (4.42)
Transport width, maximum, ft-in (m) 18' 0" (5.49)
Transport height, minimum, ft-in (m) 10' 5" (3.18)
Transport height, maximum, ft-in (m) 13' 8" (4.17)
Total weight, minimum, lb (kg) 13,187 (5982) estimated
Total weight, maximum, lb (kg) 19,323 (8765) estimated
Sizes available, number of widths 5
Disk Blades  
Disk blade spacing, in (mm) 7.5 or 9 (191 or 229)
Disk blade diameter, in (mm) 22 (559)
Disk blade thickness, in (mm) 0.177, 0.197 or 0.256 (4.5, 5.0, or 6.5)
Blade edge profile Solid
Optional blade edge profile Reverse bevel solid edge
Blade concavity Standard concavity
Disk Gang Mounting and Angles  
Gang mounting to frame Rigid or C-Spring Cushion
Frame left to right flexibility, rigid or flexible Flexible
Front gang angle, degrees 18
Rear gang angle, degrees 18
Disk Gang Components  
Disk bearings Regreasable, triple lip sealed
Gang arbor bolts, in (mm) 1.5 (38) round
Disk spool description, in (mm) 4.5 (114) Nodular cast iron
Disk blade scraper, type Spring steel, rigid arm
Wheels and Tires  
Transport wheel mounting Walking tandem
Transport tires 12.5L x 15 Fl up to 380/60 R16.5
Optional transport tires 340/55 R16 or 380/60 R16.5
Wing wheel mounting Walking tandem
Wing tires 11L x 15 8PR up to 380/60 R16.5
Hookup to tractor, mounted or pull-type Pull-type
Depth and Level Adjustment  
Typical operating depth, in (mm) 2 to 4 (51 to 102)
Depth control Single point hydraulic, crank adjust
Fore/aft leveling Turnbuckle std / Hydraulic opt
Tractor Power Requirements  
Required power, hp/ft (kw/m) 8 to 12 (19.4 to 29.4)
Optional Attachments  
Rolling basket, reel or chopper Double-edge reel bars, hydraulic down force
Coil tine harrow 3 bar coil tine
Spike tooth harrow No option
Rear hitch Optional
Sales Literature  
Literature Number CIH03061501
Literature Date 3/1/2015
Other Documentation  
Document Number SP-4042-14
Document Date 8/1/2014
Status and Entry Dates  
Manufacturing Status Current
First Entry Date 7/1/2014
Revision Date September, 2014; August, 2015


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