What is one advantage of using pneumatic systems over hydraulic systems?

Pneumatic systems are generally lighter and cleaner compared to hydraulic systems because they utilize compressed air as the medium for power transmission. The lightweight nature of air allows pneumatic systems to be designed with more portable and less bulky components, making them easier to implement in various applications where weight is a critical factor. Additionally, because air is abundant and can be vented into the atmosphere, pneumatic systems tend to produce less mess and are less prone to contamination issues, which can be a significant advantage in environments requiring cleanliness, like food processing or pharmaceuticals.

In contrast, hydraulic systems utilize fluids that can be heavier and may lead to leaks, creating messier operating conditions. Therefore, the properties of the medium in pneumatic systems contribute to their advantages in terms of weight and cleanliness.