A cylinder in which the retracting stroke is the power stroke is called a?

A cylinder where the retracting stroke serves as the power stroke is characterized as a double-acting cylinder. In a double-acting cylinder, hydraulic fluid can exert force during both the extending and retracting strokes. This design allows for greater efficiency and control because it can perform work in both directions.

During the retracting stroke, hydraulic pressure pushes the piston back into the cylinder, providing a powerful means to perform tasks such as lifting, moving, or pressing materials. This contrasts with a single-acting cylinder, which only utilizes one stroke for power and relies on another force, often a spring, to return the piston to its original position.

Therefore, understanding that the retracting stroke can be a power stroke helps to highlight the capabilities and versatility of double-acting cylinders in various applications, where they can effectively harness hydraulic energy in both directions.