Cast Zinc Shot

 

Transmet Cast Zinc Shot
Transmet Cast Zinc Shot is a soft metallic shot for deburring, deflashing, and general blast cleaning and surface finishing of light metal castings and other non ferrous products. Cast Zinc Shot is also effective in blast cleaning rust and scale from iron castings and other ferrous parts without damage to part detail.

With a bulk density similar to steel, Cast Zinc Shot can deliver the energy for deburring and flash removal without leaving an aggressive surface profile. The resulting surface finish is very bright and evenly textured.

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Zinc Shot vs Other Blast Media

Transmet’s unique casting process results in high durability, long-lasting blast media proven to outlast alternatives. Cast Zinc Shot lasts 2x longer than stainless steel, 3x longer than zinc cut wire, 4x longer than steel shot, and 10,000x longer than glass bead and aluminum oxide.

Durability Comparison of Blast Media

 

Applications for Cast Zinc Shot

Transmet Cast Zinc Shot Blast Media is ideal for shot blasting (or abrasive blasting) applications including surface finishing of castings, deburring, flash removal, corrosion removal, paint removal, coating removal, and more.

 

Two Alloys of Cast Zinc Shot

The ZA4 alloy is the most popular and most aggressive form of Transmet Cast Zinc Shot. It has a greatly increased durability over the HG alloy. The ZA4 alloy will last up to 300% longer than zinc cut wire in blast cleaning operations.

Product Name S.A.E. Equivalent Cut Wire Equivalent Typical Shot Diameter (Inches/Microns) Harness Knoop
RSZ-500 ZA4 S-170 .020″ .019/500 91
RSZ-750 ZA4 S-230 .030″ .029/750 91
RSZ-850 ZA4 S-280 .040″ .033/850 91

 

The HG alloy is made from High Grade Zinc. This alloy is similar in hardness to zinc cut wire and imparts an equivalent surface finish on castings. The HG alloy lasts up to 50% longer than zinc cut wire in blast cleaning operations.

Product Name S.A.E. Equivalent Cut Wire Equivalent Typical Shot Diameter (Inches/Microns) Harness Knoop
RSZ-500 HG S-170 .020″ .019/500 68
RSZ-750 HG S-230 .030″ .029/750 68
RSZ-850 HG S-280 .040″ .033/850 68

 

Standard packaging for HG and ZA4 zinc products is 25 lb. bags.

 

 

Eliminate Shot Blasting Machine Wear

Transmet Cast Zinc 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 been exclusively running RSZ-850-ZA4 Cast Zinc Shot for 16,200 hours:

Shot Blasting Machine Blast Wheel After 16,200 Hours Running Cast Zinc Shot Blast Media

 
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