Long Stroke Hydraulic Cylinders

HSI Corporation has unique experience building hydraulic cylinders with long strokes. The capacity to do work on a 40' long honed tube or chrome rod takes unusual machinery and experienced machinists. The skill to do final assembly of parts on such cylinders takes capable, professional craftsman. HSI has over 40 years of experience meeting customers’ requirements by manufacturing these type of telescopic hydraulic cylinders.

Long Stroke Cylinder Features

• Custom sizes up to and above 36" bore
• Stroke lengths 40' and longer
• Double and single acting cylinders
• Designs up to 10000 psi working pressure
• Total weights can often reach nearly 25,000 pounds
• High yield carbon or alloy steel outer tubes 
• .001" minimum chrome plated carbon or alloy steel rods
• Duplex chrome plating, as well as nickel/chrome plating available
• Options for ductile iron or bronze inlaid steel rod glands 
• Cushioning at both ends of stroke
• Mounting alternatives include trunnion mount, clevis, pineyes, or lugs with spherical bearings
• Custom options for ports and integrated valves
• Diverse preferences for seals due to temperature or heavy duty usage
• Linear transducers, proximity switches, and sensors available
• Extensive pressure testing
• Finished cylinder is sandblasted and painted to customer specifications
• Hydrostatic testing data packets and material test reports available
• Seal kits available for quick shipment 
• Short manufacturing lead times

HSI has built long stroke hydraulic cylinders for many applications, including boom extension, motion compensation, and mast raising to ASME, ABS, DNV, USCG and API specifications. We have the knowledge & experience required to manufacture these complex long stroke telescopic cylinders.