Feedwheel Tensioners. Signode pneumatic tensioners take most of the effort out of the strapping large or compressible packages. They also make tensioning uniform and precise through adjustment of the air regulator. All pneumatic tensioners, except the WP-2, have unlimited strap take-up. All pneumatic tensioners are furnished with a quick-disconnect plug. It is essential that an air filter-regulator-lubricator assembly be installed andead of the tool on the air line.