The Vacuum That Kept Losing Hold We picked a small vacuum ejector (venturi) for a suction cup picking cardboard boxes. The ejector was rated for -80 kPa. On the bench, it held. On the line, the boxes had small leaks (corrugated cardboard leaks). The vacuum dropped, and the box slipped. The ejector’s flow rate was …

Continue reading “Vacuum Gripping: Ejector vs Pump, Holding Force and Leak Rate Sizing”