The compressed air exhausts through a gap that is set with a shim positioned between the cap and the body of the Super Air Knife. For most applications, the .002” (0.05mm) thick shim installed in the Super Air Knife when it is shipped works best. There are, however, some situations that require more force and flow. Thicker shims will increase the gap opening offering higher velocity and harder hitting force. Air consumption and noise will be slightly higher.
Shim sets for Aluminium Super Air Knives include a .001″ (0.03mm), .003″ (0.08mm) and .004″ (0.10mm) thick plastic shims.
Stainless Steel Super Air Knife shim sets include (3) .002″ (0.05mm) thick stainless steel shims.
PVDF Super Air Knife shim sets include (3) .002” (0.05mm) PTFE shims.