Wearing Parts of Shot Blasting Equipment
The most wear-prone components of a shot blasting machine are listed below:
Blades
They are the core parts that eject abrasives at high velocity. High-quality blades can serve over 800 working hours, whereas low-quality ones only last 200 to 300 hours.
Control Cage
It controls the blasting projection direction. It must be replaced once the wear loss exceeds 10–12 mm; otherwise, the blasting uniformity will be compromised.
Distributor Wheel
Installed inside the control cage. Its wear leads to uneven abrasive distribution, so it shall be inspected whenever blades are replaced.
Side, Top and Front Protection Liners
These liners bear direct impact from abrasives. Their wear changes the blasting projection angle, and inspections are required every 3 to 6 months.
Wear-Resistant Liners
Made of Mn13 steel or high-chromium cast iron. Replacement is necessary when more than 50% of the original thickness has worn away.
Technical Notes
The technical term "shot blasting" is translated as granallado in Latin American Spanish.
The word álabes (blades) can also be replaced by aspas or paletas depending on regional dialect habits.
The general term abrasivo stands for shot/abrasive media; you may specify it as granalla metálica (metal shot) if required.
