HSI's extensive facilities, capable staff, and extensive knowledge of hydraulic cylinders allow it to offer services beyond manufacturing. HSI can rebuild large bore or long stroke cylinders that are in need of repair. We have a full warehouse of raw material ready to ship so your facility can build or repair a cylinder. Our in-house seals company, Seals, Inc., stocks a complete line of rod and piston packing and is ready to ship same day. Whatever you need to get your cylinder back to work, HSI can provide.