S91 Cutter Parts 376500269 Cylinder Air 100mm Single Action W-Vent Product Overview The 376500269 Cylinder Air 100mm Single Action W-Vent is a replacement pneumatic cylinder designed for the S91 automatic cutter . This air cylinder features a 100mm specification and single-action configuration , making it suitable for pneumatic actuation applications within the S91 cutting machine. It is supplied as a replacement spare part for machine maintenance when the existing air