Hydraulics are preferred over pneumatics for which reason?

Hydraulics are indeed preferred over pneumatics primarily for greater accuracy. This is due to the fact that hydraulic systems utilize incompressible fluid, which allows for very precise control of movement and force application. The inability of the fluid to compress means that hydraulic actuators can transmit forces with minimal lag and provide consistent power delivery. This results in highly precise positioning and control, which is essential in applications where accuracy is crucial, such as robotics or machining.

In contrast, pneumatic systems rely on compressible air, which can introduce variability in force and positioning due to factors like temperature changes and air leaks. This inherent limitation affects the precision and responsiveness of pneumatic systems compared to hydraulics, making hydraulics a better choice for applications requiring high accuracy.