Hydraulic Cylinders Manufacturer – Magister Hydraulics. How it's done. Moving Industry Seamlessly. Welded Double Acting Hydraulic Cylinder Bore: 4″ Stroke: 8″ Rod: 2″ Retracted: 18″ Extended: 26″ Pin Size: 1.5″ Port Size: SAE 8 Column Load: 37,700 lbs Work Pressure: 3500 PSI Color: Black