CRYOVAC Piercing Knife Assembly 7 Blade (FUR72053 A) ,. Designed for CRYOVAC Rotary Vacuum Chamber SystemsThis OEM piercing knife assembly fits CRYOVAC rotary vacuum platforms, providing precise venting to evacuate trapped air prior to sealing. Multiple Blade Configuration for Even VentingFeatures a row of razor sharp, stainless steel piercing knives engineered to puncture bags cleanly without tearing or over slitting the film. Integrated with Pneumatic Actuation SystemConnects to the chamber mounted air cylinder via radial bearing and lever armsupports smooth, controlled operation throughout the vacuumizing stage. Serviceable, Sharpenable, and ReplaceableIndividual blades can be replaced or sharpened to extend service life. Designed for safe removal and bench top maintenance procedures. Built for Cleanability and Food Safe EnvironmentsCorrosion resistant stainless steel construction stands up to routine sanitation, low pressure washdowns, and USDA compliant cleaning protocols.