When designing a hydraulic cylinder, one question that often comes up is whether to use a hollow piston rod or a solid piston rod. Both have their advantages depending on your application.

 

Advantages:

- Higher strength and rigidity for the same diameter

- Lower manufacturing cost for smaller sizes

- Simpler manufacturing process

- Better for high force applications

 

Best for: Heavy-duty applications where maximum strength is required, and weight isn't a critical concern.

 

Advantages:

- Lighter weight reduces overall system inertia

- Improved response times in dynamic applications

- Can be used for piston rod cooling through fluid circulation

- Potential material cost savings for larger diameters

 

Best for: High-speed applications, dynamic systems where weight reduction improves performance, applications requiring internal cooling.

 

 

If you need maximum strength for heavy loads and cost is a primary concern, go with a solid piston rod. If you're working on a high-speed application where reducing inertia improves performance, or if you need internal cooling, a hollow piston rod is the better choice.

At Xinluo Hydraulic, we manufacture both solid and hollow piston rods in custom sizes to meet your specific design requirements. Contact us to discuss your project — we can help you determine the best option for your application.