Trunion Mounted Hydraulic Cylinder

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Trunion Mounted Hydraulic Cylinder

A trunnion-mounted hydraulic cylinder is a type of hydraulic actuator that features a trunnion or trunnions for mounting. Trunnion mounting provides a pivot point around which the cylinder can move, allowing for controlled linear motion.

Trunion Mounted Hydraulic Cylinder

Here are key features and considerations for trunnion-mounted hydraulic cylinders:

Trunnion Mounting:

Trunnion mounting involves the use of trunnions, which are pivot points or support structures on either end of the hydraulic cylinder. These trunnions allow for rotational movement and are used for mounting the cylinder in the system.

Pivot Point:

The trunnions serve as pivot points, enabling the hydraulic cylinder to pivot around its mounting axis. This design is useful in applications where controlled rotational movement is required.

Versatile Mounting Options:

Trunnion-mounted cylinders offer versatile mounting options. They can be mounted to various structures or components using the trunnion points, providing flexibility in system design.


Trunnion-mounted hydraulic cylinders are commonly used in applications where a combination of linear and rotational movement is needed. Examples include conveyor systems, gate control, material handling equipment, and other machinery.

Controlled Movement:

The trunnion mounting allows for controlled and precise movement of the hydraulic cylinder. This is important in applications where specific positioning or alignment is required.

Load Distribution:

The trunnion design helps distribute the load evenly during movement, providing stability and reducing stress on the mounting points. This contributes to the overall durability of the hydraulic system.


Manufacturers often offer customization options for trunnion-mounted hydraulic cylinders, allowing customers to specify parameters such as bore size, stroke length, and other design considerations based on the application's requirements.

Construction Materials:

Trunnion-mounted hydraulic cylinders are constructed using materials such as steel or alloys to provide the necessary strength and durability. The choice of materials depends on factors like load capacity, environmental conditions, and application requirements.

Sealing Technology:

High-quality sealing technology is crucial to prevent hydraulic fluid leakage and maintain the integrity of the hydraulic system. Seals are chosen based on their compatibility with hydraulic fluids and durability.


Regular maintenance, including checking for leaks, inspecting seals, and ensuring proper lubrication, is important for the reliable performance and longevity of trunnion-mounted hydraulic cylinders.

Why Choose Trunion Mounted Hydraulic Cylinder ?

When considering a trunnion-mounted hydraulic cylinder for a specific application, it's important to consult with the manufacturer or supplier to ensure that the chosen cylinder meets the requirements of the system and is properly integrated for optimal performance.