Glass beads used in abrasive blasting cabinets come in different sizes just like sandpaper comes in different sizes and grades. 60-100 mesh is the fastest cleaning size, and cleaning time increases as bead size increases or decreases.
The larger the bead size the lower the maximum impact velocity. A good rule of thumb is 80 psi maximum blasting pressure for siphon and 40 psi for direct pressure using a pressure pot assembly.
All Media Blast bead blasting cabinets use glass beads. For Industrial applications look to the Media Blast N-200, N-200 Cyclone, PowerPeen and Power Strip models. We offer additional information related to:
(Chart is for reference only. Please consult glass bead manufacturers for exact specifications.)
Bold Print indicates the most commonly used glass bead sizes. Mil. Spec. No. 8 is the most commonly used bead size.