SMC Corporation MY1B40-PSC Cylinder Repair Kit

SMC MY1B40-PSC Cylinder Repair Kit is a maintenance seal kit for the SMC MY1B40 Mechanically Jointed Rodless Cylinder family, specifically the 40 mm bore MY1B40-PS configuration. It provides the replacement seals required to restore airtight performance and smooth motion in fielded systems with compressed air actuation. The MY1B series uses an aluminum alloy cylinder tube with hard anodized finish, and the seal kit targets the wear surfaces inside the cylinder to maintain guidance and sealing integrity across typical operating pressures. Designed for use with the MY1B40-PS cylinder, this kit helps extend service intervals for automated equipment, reducing downtime and preventing leakage that can affect repeatability. Typical applications include pick-and-place tooling, magazine feeds, clamping fixtures, and other linear actuation tasks where a compact, guided rodless cylinder is employed. Installation involves removing the cylinder ends and replacing worn seals and O-rings with the appropriate MY1B40-PS compatible components, then reassembling per SMC maintenance instructions. Because the kit is matched to the MY1B40 bore, it preserves the cylinder’s performance characteristics—low-friction operation, consistent return to position, and reliable sealing through multiple cycles. When selecting a repair kit, verify the part number aligns with the MY1B40-PS model to ensure correct fit and function for your rodless cylinder.