Shot Blasting is a method used to clean, to induce strengthen (shot peening) or polish metal surface. Shot blasting is used in almost every industry that uses metal, including aerospace, automotive, construction, foundry, shipbuilding, rail, and many others.

Shot blasting process has become an integral part of steel structure and metal building industry. Shot Blasting provides two vital benefits, for steel protection. Firstly it removes all rust, mill scale and corrosion, thus eliminating moisture which is almost always entrapped beneath these corrosion products. Second it provides ideal surface finish (SSPC – 10 | SA 2.5) for securing a continuous and effective bond between the steel surface and coat.

Advantage of shot blasting:
Removing corrosion: Shot blasting can remove all forms of rust and corrosive materials from the metal surface, while leaving the base of the product unaffected. Typical corrosive builds include as mention below.
• Rust
• Mill scale
• Chemical stains
• Chipped or faded paint
• Heat treatment scale.

Surface preparation: Shot blasting is the most efficient and the most effective process to prepare a metal surface prior to painting or coating

• High blast pattern accuracy
• Much better bond between blasted surface and the protective coating
• Aids in revealing any surface defects or errors
• Increases the lifespan and the endurance of future coatings.

The environment: Shot blasting is one of only a few environmentally friendly options for corrosion removal and surface preparation.

• The process only uses abrasion to clean the metal surface
• No chemicals used at all
• No acids
• Only cleanup is physical pellets
• Blasted steel and dust are swept away by powerful vacuum and dust collection system
• The process inherently recycles materials.

There are two technologies used in shot blasting:
• Wheel blasting (air less shot blasting)
• Air blasting (pneumatic shot blasting / air operated shot blasting)

Wheel blasting (air less shot blasting)
In wheel blasting the abrasive media is propelled on work piece to be blast clean, using directly converting electric motor energy into kinetic energy by rotating a turbine wheel. It is categorised as an airless blasting operation because there is no use of air, liquid or gas to propel the abrasive media. A wheel machine is a high-power, high-efficiency blasting operation with recyclable abrasive (typically steel or stainless steel shot, cut wire, grit, or similarly sized pellets).

Air blasting (pneumatic shot blasting / air operated shot slasting)
In air blast machines the abrasive media is propelled with the help of compressed air pressure. A blast room is a complete air blast system which includes four main systems. The blasting chamber, the abrasive blasting pot or hopper and the dust collector and abrasive recycling system. The recycling systems ranging from manual sweeping and shoveling the abrasive back into the blast pot to full reclaim floors that convey the abrasive pneumatically or mechanically to a device that cleans the abrasive prior to recycling.

Contact:

Patel Furnace & Forging Pvt. Ltd. (Shot Blasting Division)
A – 2 / 510 GIDC Industrial Estate, Makarpura, Vadodara – 10, Gujarat, India
Mobile: +91 97370 61333 |
Tele: +91 265 2644864, 2640406,
Fax: +91 265 2643663
Email: info@pshotblast.com,
sales@pshotblast.com