Welded hydraulic cylinders, also known as welded body cylinders or welded construction cylinders, are a type of hydraulic cylinder where the barrel and end caps are welded together to form a single, integral structure. This construction method offers several advantages in terms of strength, durability, and cost-effectiveness.
The main features and components of welded hydraulic cylinders include:
Barrel: The barrel is the main body of the cylinder and is typically made of high-quality steel tube. In welded hydraulic cylinders, the barrel is a single, seamless structure formed by welding the end caps to the tube. The welded construction provides strength and rigidity to withstand high pressures and heavy loads.
End Caps: The end caps, also referred to as heads or flanges, are welded to the barrel at each end to enclose the fluid chamber of the cylinder. They are typically made of steel and are designed to withstand the forces and pressures generated during hydraulic operation. The end caps also house the rod gland and provide mounting points for attachment to the equipment or system.
Piston and Piston Rod: The piston separates the fluid chamber into two compartments within the barrel and transmits the hydraulic force. The piston rod extends from the piston and connects to the external load. Both the piston and piston rod are typically made of high-strength steel and are precision machined for optimal performance.
Seals: Welded hydraulic cylinders incorporate seals to prevent fluid leakage and maintain the separation of the fluid chambers. These seals are typically made of materials such as rubber or polyurethane and are designed to withstand high pressures and temperature variations.
Rod Gland: The rod gland, also known as the rod seal housing, is located at the end of the cylinder barrel and seals the hydraulic fluid on the rod side of the cylinder. It prevents leakage and protects the cylinder from contaminants.

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