Should you normally install a cylinder with the ports at the top or the bottom?

Installing a hydraulic cylinder with the ports at the top is often recommended for several reasons. When the ports are positioned at the top, it helps to minimize the accumulation of air within the system. Air can lead to decreased performance and efficiency, as it may cause cavitation or erratic cylinder movement. By allowing the fluid to enter from the top, it also promotes proper fluid flow and can avoid potential issues with drainage or premature seal wear that might occur if the cylinder is positioned differently.

Additionally, having the ports at the top allows for easy access to the hydraulic lines, facilitating maintenance and inspections. This orientation can also help with heat dissipation, although this can vary depending on specific applications and configurations. In situations where the operation is highly dynamic or where the system is sensitive to air contamination, placing the ports at the top provides a practical advantage in managing the system's integrity and functionality.

This arrangement might be adjusted based on specific applications or mechanical designs, but typically, mounting the ports at the top aligns with standard best practices.