Hydraulic cylinders are mechanical devices used to create linear motion by converting hydraulic energy into mechanical force. They find applications in various industries, including manufacturing, construction, oil and gas extraction, and heavy equipment. There are several different types of hydraulic cylinders, each designed for specific purposes.
- Single-Acting Cylinder: A single-acting cylinder operates in one direction, usually extending the piston rod under hydraulic pressure. The return stroke is achieved by an external force such as gravity or a spring. These cylinders are commonly used in applications where the load needs to be lifted or moved in one direction only, such as dump trucks or lift gates.
- Double-Acting Cylinder: A double-acting cylinder operates in both directions, allowing for powered extension and retraction of the piston rod. Hydraulic pressure is applied alternately on either side of the piston, creating bi-directional motion. These cylinders are widely used in applications that require precise control over the movement, such as industrial machinery or hydraulic presses.
- Telescopic Cylinder: Telescopic cylinders, also known as multistage cylinders, consist of multiple nested stages that collapse and expand to provide a longer stroke than a conventional cylinder. This design allows for a compact retracted length and a longer extended length, making them suitable for applications with limited space, such as dump trucks, cranes, or agricultural equipment.
- Plunger Cylinder: Plunger cylinders, also known as ram cylinders, have a piston rod that is attached to a plunger instead of a piston. The plunger has a larger diameter than the rod, creating a high-force, low-speed cylinder. These cylinders are commonly used in heavy-duty applications, such as forging presses or hydraulic jacks.
- Servo-Actuated Cylinder: Servo-actuated cylinders are advanced hydraulic cylinders that incorporate a servo valve or servo control system. These cylinders are designed to provide precise and accurate positioning control. By integrating feedback sensors and control algorithms, they can achieve highly accurate motion control, making them ideal for applications that require precise positionings, such as CNC machines, robotics, or industrial automation systems.
Each type – and this list does not reflect every type – has its own advantages and applications, and selecting the right cylinder depends on factors such as the required force, stroke length, speed, and space constraints.
TLR Hydraulics has experience fabricating and repairing all of these hydraulic cylinder types, including sizes up to 80 inches in diameter and 60 feet in length. Each of our locations has a full machine shop and an experienced team of technicians which means faster response and superior quality.
No matter what hydraulic system you are running, TLR Hydraulics is prepared to help you keep operating at peak efficiency.