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Split Frames

John Deere Split Frame

Key Features

  • Split frame concave with interchangeable module inserts, transition lip bolted to front frame.
  • Fits John Deere single rotor combines.
  • Lighter and easier to install into combine than factory one piece concaves. 
  • Once installed it stays in the combine and 30lb modular concaves are swapped out within minutes with 2 bolts per insert.

New Holland Split Frame

Key Features

  • Split frame concave with interchangeable module inserts.
  • Fits New Holland CR combines.
  • Lighter and easier to install into combine than factory one piece concaves.
  • Once installed it stays in the combine and 30lb modular concaves are swapped out within minutes with 2 bolts per insert.

Concave Modules

.225 Concave

Key Features

  • front position
  • reduce dockage
  • hard thresh crops
  • wheat, flax, canary seed

.300 Concave

Key Features

  • front position
  • allows more seed out of concave reducing rotor loss
  • large easy thresh cereals

.375 Concave

Key Features

  • mostly second position but used in front position for large cereal crops that need some threshing

  • all crops

.435 Concave

Key Features

  • first and second position

  • very easy thresh crops like hemp

  • very large seed crops, chick peas, faba beans

Finger Grate Concave

Key Features

  • front position
  • new design for shatter resistant canola
  • minimal threshing
  • increased separation
  • canola, peas, barley, oats, sunflower, corn, and soybeans

Slotted Concave

Key Features

  • front position
  • no threshing, full separation
  • no cracking
  • edible beans, canola, sunflower

Round Bar Concave

Key Features

  • both positions

  • full separation

Alfalfa Concave

Key Features

  • both positions

  • specially designed

John Deere X9 Concave

Key Features

  • .225 for front for hard thresh
  • .435 for back for separation and front for easy threshing crops

MAD Concaves Inquiry Form

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Combine Make & Model*

Number of Combines*

Crop Types Harvested*

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