What's the Difference Between AR-400 and T1 Screen Material?

Posted on: Apr 20, 2016 - 07:00 AM | General
Author: Darrin Martin
Screen/grate with biased-cut holes on T-1 material.
Screen/grate with biased-cut holes on T-1 material.
AR-400 and T-1 are two different types of steel that are used to make screens/grates for wood waste recycling grinders. Both are hardened materials that have specific, and different, properties that make them appropriate for different wear applications.

AR-400 screens/grates tend to be more brittle but they will wear longer. They are designed to be used for “clean” material that is not likely to have a lot of extraneous metal or rocks in it.
It is more common to see smaller screens made out of AR-400 because if they break they are less expensive to replace.

CBI 4800 T-1 screen/grate in the “cradle” with cutter bar and shear pin shown.
CBI 4800 T-1 screen/grate in the “cradle” with cutter bar and shear pin shown.
Screens made from T-1 steel, on the other hand, are usually much larger screens designed to be used for bigger machines like Diamond Z and CBT. T-1 material is more flexible than than AR-400, so it will absorb more impact. That makes it better suited for use with “dirtier” feedstock, such as what you would find on a construction & demolition site or in land clearing.

Both materials have their place in
screen/grate fabrication. It is important to work with a fabricating/manufacturing company that not only has experience in making screens/grates but also understands the industry and the desired finished product a client wants to achieve.

1” thick T-1 material with 4” diamond hole pattern and rail protection prior to bending/forming. Diamond Z screen/grate.
1” thick T-1 material with 4” diamond hole pattern and rail protection prior to bending/forming. Diamond Z screen/grate.

To learn more about this subject or other matters regarding wood waste, tub & horizontal grinding equipment and parts, please contact the wear parts specialists at Grinder Wear Parts, www.GrinderWearParts.com or 800-827-0401.
 

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