Shot Blasting Service

Precision Surface Preparation Using High-Impact Steel Shots

Shot blasting is a highly controlled surface preparation process that uses spherical steel shots propelled at high velocity to clean, strengthen, and prepare metal surfaces. It is one of the most reliable techniques for achieving consistent surface profiles across large industrial components and structural elements.

What is Shot Blasting?

Unlike grit blasting which uses angular media, shot blasting employs rounded steel balls that impact the surface with a peening action. This not only removes contaminants and old coatings but also compresses the surface layer, improving its fatigue resistance and mechanical strength. It is extensively used in steel fabrication, bridge construction, and heavy manufacturing.

Key Benefits

• Delivers consistent, uniform surface cleanliness
• Improves surface strength through compressive stress (peening effect)
• Reusable steel shots — cost-efficient over time
• Minimal dust generation compared to mineral abrasives
• Suitable for heavy steel plates, girders, and structural sections
• Achieves Sa 2.5 and Sa 3 surface cleanliness standards

Applications

• Structural steel beams and columns
• Railway wagons and locomotive parts
• Bridge girders and deck plates
• Wind turbine towers and foundations
• Heavy machinery and industrial equipment

Process Overview

Steel shots are propelled using centrifugal wheel blast machines or pneumatic systems. Surface cleanliness and profile are checked after blasting to ensure they meet the project specification before protective coatings are applied.