Hydraulic Cylinders
Hydraulic cylinders are a fundamental component in various mechanical systems where force is required to move loads. They are used extensively in construction equipment, manufacturing machinery, and vehicle systems, among other applications.
- Cylinder Barrel: The body of the cylinder in which the piston moves back and forth.
- Piston: Moves under the pressure of hydraulic fluid.
- Piston Rod: Extends from the piston through one end of the cylinder, transmitting the force exerted by the piston.
- Cylinder Cap: The closed end, typically at the rod's exit.
- Cylinder Head: The end through which the piston rod exits the cylinder.
- Seals: Prevent leaks of hydraulic fluid and keep it contained within the cylinder.
- Hydraulic Fluid: The medium by which pressure is transferred within the cylinder.
- Single-Acting Cylinders: Fluid enters through one port, forcing the piston in one direction only. The piston returns to its original position by an external force, often a spring.
- Double-Acting Cylinders: Have ports at both ends. Fluid can be alternately applied to either side of the piston for both extension and retraction, making them more versatile.
- Telescopic Cylinder: Consists of multiple stages of cylinders nested within each other, extending much like sections of a telescope. This allows for a longer stroke while maintaining a shorter closed length.
- Rodless Cylinders: Instead of a piston rod, these use a mechanism inside the barrel to convey motion, useful where space constraints prevent the use of a traditional piston-rod setup.