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Corn Cob

Corn Cob Grit Tumbling Media

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Corn cob grit tumbling media is an environmentally safe, smooth flowing abrasive made from the hard woody ring of the cob. Corn cob tumbling grit is used as both a tumbling and vibratory media to absorb dirt and oils and to dry parts, without affecting the surface of the parts. Corn cob tumbling grit also serves as a burnishing grit to burnish soft metals such as bronze and brass in tumbling operations.

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Advantages of Corn Cob Tumbling Grit Abrasive:

  • Long-lasting; highly resistant to breakdown; reusable in barrel and vibratory tumblers
  • Biodegradable; can be incinerated
  • Organic and natural
  • No health or environmental hazards
  • Clean - virtually dust-free
  • Effective polishing on metals and plastics
  • Highly absorbent of both water and oils
  • Reduces cost of finishing operations
  • Preserves micro-finishes

Size of corn grit needed is generally determined by the weight and character of the parts to be processed. Consider the size of perforations or holes through which the corn cob tumbling grit abrasive must pass when screen separating parts from media after use.

Standard Mesh Sizes



Standard Mesh Sizes

Description

Mesh

grit comparison photos »

Extra Coarse+ 8 Mesh (2.36 mm & larger)
Coarse 8/14 Mesh (2.36-1.40 mm)
10/14 Mesh (2.00-1.40 mm)
Medium 14/20 Mesh (1.40-0.85 mm)
Fine 20/40 Mesh (0.85-0.42 mm)
Extra Fine 40/60 Mesh (0.42-0.25 mm)
Flour-40 Mesh (0.42 mm & finer)
-60 Mesh (0.25 mm & finer)

Corn cob tumbling meida is packaged in 50 lb, 25 lb, 10 lb and 5 lb packages.