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Impeller

Of equal importance in maintaining the desired blast pattern is the effect of abrasive wear on the impeller. To properly distribute the abrasive over the blasde-throwing surface, there must always be a "lead" between each impeller segment and its corresponding blade.
If the leading edge of any segment of the impeller becomes worn so that ir becomes parallel with theh blade, the abrasive will cut through the bottom of the blade and could create wear and tear on the steel spaces and steel slots. Not only will the blast pattern be affected, but also wheel imbalance will result, creating additional serious problems.
Impeller
WEAR AFFECTS EFFICIENCY

Why does it take a long time to clean the component?
Why are the maintenance costs so high?

The answer can usually be traced to loss of directional control over the blast pattern.
Of course, the blast pattern must be set properly in the first place, but it can change for a variety of reasons.
Wear on wheel parts
Wear on the wheel parts which control the "HOTSPOT", i.e. conteol cage, impeller and blades, is the main cause for changes in this pattern.

Wear on the impeller
Inspect them regularly and replace them as soon as excessive wear is detected.

 

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