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The piston rod is typically a hard, chrome-plated piece of cold-rolled steel which attaches to the piston and extends from the cylinder through the rod-end head. In double rod-end hydraulic cylinders, the actuator has a rod extending from both sides of the piston and out both ends of the barrel.
Most commonly, the cylinder rod is made of steel or stainless steel and is then coated with Hard Chrome Plating (HCP).
How to Effectively Make Very Strong Hydraulic Cylinder Rod for Big Hydraulic Jack | Amazing Process
Hydraulic cylinders work by using hydraulic fluid (usually oil) to create pressure. There is a piston rod which is connected to a piston. This moves back and forth inside a cylinder barrel. One end of the barrel is capped (closed). The other end of the barrel has the cylinder head or gland.
Watch this video to learn how hydraulic cylinder rods are made. This video is about hydraulic cylinder rod manufacturing, and you'll learn about the different parts of a hydraulic cylinder rod, as well as the manufacturing process.
If you're looking to buy a hydraulic cylinder rod, then this video is for you. You'll also get a chance to see how a hydraulic cylinder is made, from start to finish. So watch this video and learn all you need to know about hydraulic cylinder.
When a cylinder is over-loaded or misaligned, excessive stress is applied to the mounting connection which results in faster wear or even failure. Rod eye bushings and bearings can become worn, chipped or broken creating slop and undesirable movement.
Hydraulic cylinder piston rods are induction hardened in order to increase the resistance to damage from unanticipated external impact in applications where there is risk for such; examples are piston rods for hydraulic cylinders in excavators and loaders and for power-steering cylinders.
In most cases, bent rods can be straightened in a press. It is sometimes possible to straighten hydraulic cylinder rods without damaging the hard-chrome plating, however if the chrome is damaged, the rod must be either re-chromed or replaced.
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