The combination of Mixing Solutionsâ new Lancer propeller, mounted on a Cutlass side-entry mixer, has been developed to virtually eliminate energy waste. The new Lancer propeller develops a âfocused flowâ? that channels power into a jet-stream. The design of the Lancer/Cutlass system also incorporates a mechanical shut-off device that is engineered to adhere to the strictest environmental regulations. The shut-off device is designed into the shaft and mounting flange with a stainless steel taper-to-taper shut-off feature that securely âlocksâ? the system so that no leakage occurs during bearing and seal change-out procedures.