Locking hydraulic cylinder: high-precision "safety lock" in industrial automation

2026,01,31

In modern intelligent manufacturing, heavy machinery, and automated production lines, the Locking Hydraulic Cylinder plays a crucial role - it is not only an actuator that performs push-pull actions, but also a critical safety barrier. When the system is powered off, hydraulic failure, or sudden shutdown occurs, ordinary hydraulic cylinders may lose control and retract due to load thrust, while locking hydraulic cylinders can firmly "lock" the current position, ensuring the safety of equipment and personnel. Therefore, it is widely used in scenarios such as machine tool fixtures, robot workstations, injection molding machine locks, presses, test benches, etc., which require extremely high positioning accuracy and process safety.

What is a locking Hydraulic Cylinder?

Locking hydraulic cylinder is a special Hydraulic Actuator with integrated self-locking function. Unlike standard hydraulic cylinders, it is designed with mechanical (such as steel balls, wedges) or hydraulic pilot locking mechanisms inside the piston or cylinder body. After the oil cylinder reaches the target position, the locking mechanism is triggered by controlling the oil circuit, forming a rigid connection between the piston rod and the cylinder barrel. Even if the pressure is completely relieved, it can resist external loads without displacement. The characteristic of "not losing pressure but not losing position" is its core value.

165 120-10.5 rolling mill rod and wire locking hydraulic cylinder

Core advantages and typical applications:

High safety: prevents accidental rollback, avoids workpiece flying out, mold damage, or personal injury.
High rigidity positioning: In the locked state, the rigidity is much higher than that of ordinary oil cylinders, improving machining or assembly accuracy.
Energy saving and reliable: After positioning, there is no need to continuously supply pressure to maintain the position, reducing energy consumption and system heating.

Application scenarios of hydraulic cylinders

Today, with the acceleration of Industry 4.0 and intelligent manufacturing, the locking hydraulic cylinder has been upgraded from an "optional accessory" to a critical safety component. Choosing a well-designed, well manufactured, and internationally compliant locking cylinder not only improves production efficiency, but also provides a strong guarantee for equipment lifespan and personnel safety. If you are looking for solutions for high-precision clamping or safe positioning needs, you may want to delve into the technical details and customization options of locking hydraulic cylinders - making every "locking" a solid foundation for reliable production.

Interested in learning more about industry trends and solutions? Contact Melody: sale@guoyuehydraulic.com/WhatsApp +8615852701381

Author:

Mr. guoyue

E-mail:

phchen@guoyuehydraulic.com

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+86 13961666146