Cast Aluminum Shot

Transmet Cast Aluminum Shot

Transmet Cast Aluminum Shot is gentle enough to protect delicate gasket surfaces and critical date coding information; yet aggressive enough for deburring and flash removal of light metal castings and cleaning rust, scale, or corrosion from remanufactured parts.

Cast Aluminum Shot is perfect for applications requiring a smooth, bright metallic finish free from ferrous contamination. Its lower bulk density allows Cast Aluminum Shot to transmit less energy to parts being blasted; critical on thin-walled parts to prevent warping.

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Cast Aluminum Shot vs Other Blast Media

Transmet Cast Aluminum Shot is manufactured to outlast other blast media and produce significantly less dust.

319 Cast Aluminum Shot lasts longer than Cast Stainless Steel, almost 2X longer than Zinc Cut Wire, almost 3X longer than Cast Steel Shot, and 1000’s of times longer than Plastic Media and Glass Bead.

Graph to compare differences in durability and dust between blast media: Cast Zinc Shot, Cast Aluminum Shot, Cast Stainless Steel, Zinc Cut Wire, and Cast Steel Shot.

Applications for Cast Aluminum Shot

Transmet Cast Aluminum Shot can be used in air blast and centrifugal wheel blast equipment.

  • Shot blasting parts prone to warping
  • Removing paint, powder coat, e-coat, etc.
  • Increase thermal conductivity in cast epoxy tooling
  • Surface finishing non-ferrous components
  • Removing ceramic from investment castings
  • Descaling and rust removal remanufactured parts

Learn more about common applications for Transmet blast media by clicking here.

Eliminate Shot Blasting Machine Wear

Transmet Cast Aluminum Shot significantly reduces damage and wear on high-wear internal components like the impeller, control cage, wheel liners, blast wheel and blades. Cabinet wear as a whole is virtually eliminated.

This blast wheel has over 17000 hours of blasting with Transmet Cast Zinc Shot (similar results with Cast Aluminum Shot) without damage:

Picture: blast wheel has been blasting with Transmet Cast Zinc Shot for over 17000 hours without damage or wear

Two Alloys of Cast Aluminum Shot

The 319 alloy is the most popular and aggressive form of Transmet Cast Aluminum Shot. It was engineered to have an ideal blend of hardness and durability with an average cycle life of 8,000 cycles.

Product Name
S.A.E. Equivalent
Typical Shot Dia. (inches/
Knoop Hardness as Cast**
Knoop Hardness Peak in Use**
RSA-400(319) S-170 .015/400 102 149
RSA-600(319) S-230 .024/600 102 149
RSA-900(319) S-280 .035/900 102 149
RSA-1200(319) S-390 .047/1200 102 149

The 2N alloy is made from very pure aluminum and is significantly softer than the 319 alloy and not as aggressive. It is used on very delicate surfaces where a very smooth finish is desired. Average cycle life is 14,000 cycles.

Product Name
S.A.E. Equivalent
Typical Shot Dia. (in/micron)
Knoop Hardness as Cast**
Knoop Hardness Peak in Use**
RSA-400(2N) S-170 .015/400 25 36
RSA-600(2N) S-230 .024/600 25 36
RSA-900(2N) S-280 .035/900 25 36
RSA-1200(2N) S-390 .047/1200 25 36

Standard packaging for 319 and 2N aluminum products is 50 lb. bags.

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