Total hold-down force = Vacuum Level (“Hg) x size of the workpiece in square inches. Example: The size of a wood panel to be routed is 24 “ x 24 ” and the vacuum level is 20” Hg.

In vacuum hold-down applications, suction is created by using vacuum to move air in the opposite direction of the component being held in place. When air is removed beneath the part or component ...

The superior way to hold down your work without clamps, fixtures or jigs. A great way for woodworkers to route all sides of a board without clamps getting in the way. #woodworking.

Three-wave hold-downs — 50 seconds or more — are rare. But as you’ve noticed, Marcin, it’s not the size so much as the impact. A well-aimed six to eight foot wave can really clean you out.