S660 / S780 ST Series Steel Shot

ST Series Steel Shot is produced through a controlled manufacturing process, including raw material inspection, medium-frequency melting, chemical composition testing, centrifugal atomizing, drying, sizing, cleaning, shape selection, secondary quenching, tempering, fine screening and packaging.

The key difference of ST Series Steel Shot is the secondary quenching process. After the molten steel is atomized into spherical particles and screened, the steel shot is not directly finished like ordinary steel shot. Instead, it goes through an additional quenching treatment to further improve its internal structure, hardness stability and impact resistance.

Through this double quenching process, ST Series Steel Shot achieves better toughness, more uniform hardness and lower breakage during repeated blasting cycles. After secondary quenching, the steel shot is tempered to reduce internal stress and improve durability, helping the abrasive maintain stable performance in continuous shot blasting operations.

Finally, the product is precisely screened and packed after strict quality inspection. This process allows ST Series Steel Shot to provide lower dust generation, longer service life, stable blasting performance and more consistent surface cleaning results compared with ordinary steel shot.

1. Maximum Impact for Extra-Heavy-Duty Blasting

S660 and S780 ST Series Steel Shot are extra-large secondary quenched steel shot grades designed for powerful surface cleaning. They provide very strong impact force for large, thick and heavily contaminated workpieces.

2. Designed for Severe Rust, Thick Scale and Heavy Sand Residues

These sizes are suitable for demanding blasting applications where ordinary smaller steel shot may not provide enough cleaning power. S660 and S780 help remove severe rust, thick oxide scale, heavy sand residues and strong surface contamination efficiently.

3. Enhanced Toughness Under High-Impact Conditions

The secondary quenching process improves toughness and impact resistance, helping the steel shot maintain better durability during aggressive blasting. This reduces excessive fragmentation, dust generation and unstable cleaning results.

• Extra-large ST Series steel shot for powerful shot blasting and extra-heavy-duty cleaning
• Secondary quenching provides enhanced toughness, strong impact performance and stable durability
• Maximum impact force for removing severe rust, thick oxide scale and heavy sand residues
• Suitable for large, thick and heavily contaminated metal workpieces
• Helps improve cleaning efficiency in demanding blasting conditions
• Good resistance to breakage supports lower dust generation and reduced abrasive consumption

Aerospace

Aircraft engine blades, shafts and gears; aircraft structural parts, landing gear, and critical wing sections.

Automotive & New Energy Vehicles

Transmission gears, drive shafts, suspension springs, and key e-drive system components.

Wind Power & Energy Equipment

Gearbox components, main shafts, bearings, and heavy-duty structural parts.

Construction Machinery & Heavy Equipment

High-strength steel structural parts, welded components, and heavy-duty transmission parts.

Precision Casting & Advanced Manufacturing

High-precision castings, molds, and mechanical components.

▪Customized packaging available.▪