When it comes to achieving a smooth, professional finish on your woodworking projects, a reliable random orbital sander is an essential tool. Ryobi's random orbital sanders are popular among DIY enthusiasts and professionals alike, known for their power, efficiency, and durability. However, like any tool, the sanding pads are subject to wear and tear, and eventually, you'll need to replace them. This guide will walk you through the process of finding the right replacement pad for your Ryobi random orbital sander and how to install it.
Understanding Ryobi Random Orbital Sander Pads
Ryobi random orbital sanders use hook-and-loop ( Velcro®) backed sanding pads. These pads are designed to hold standard 5" or 6" sanding discs, depending on your specific Ryobi model. The sanding discs are the part that actually does the sanding, while the pad helps to secure the disc and provides even pressure across the surface.
Choosing the Right Replacement Pad
When it's time to replace your Ryobi random orbital sander pad, there are a few things to consider to ensure you get the right fit:

- Sander Model: Make sure to choose a pad that is compatible with your Ryobi sander model. The model number can usually be found on the sander itself or in your user manual.
- Pad Size: Ryobi random orbital sanders typically use either 5" or 6" pads. Ensure you choose the correct size for your sander.
- Hook-and-Loop System: Ryobi uses a standard hook-and-loop system, so any pad with this system should work. However, some users prefer to stick with the Ryobi brand for a more secure fit.
Recommended Replacement Pads for Ryobi Random Orbital Sanders
| Ryobi Sander Model | Recommended Replacement Pad |
|---|---|
| P4231, P4231G | Ryobi 5" Hook-and-Loop Pad (43620) |
| P5231, P5231G | Ryobi 6" Hook-and-Loop Pad (43621) |
While these are the recommended pads for each model, other 5" or 6" hook-and-loop pads should work as well, as long as they are compatible with your sander's speed and power.
Installing Your New Replacement Pad
Replacing the pad on your Ryobi random orbital sander is a straightforward process. Here's how to do it:
- Unplug the sander from the power source to ensure safety.
- Remove the old pad by peeling off the hook-and-loop backing. If the old pad is stuck, you can use a flathead screwdriver to gently pry it off.
- Clean the base of the sander to remove any dust or debris that may have accumulated.
- Align the new pad with the base of the sander, ensuring the hook side of the pad faces down.
- Press the pad firmly onto the base, ensuring it is securely attached. You should hear the hook and loop making contact.
- Plug the sander back in and test the new pad by turning on the sander and checking that it spins freely.
Caring for Your Replacement Pad
To maximize the lifespan of your replacement pad, here are a few care tips:

- Always use the pad with the correct sanding disc for your project. Using the wrong disc can damage the pad and reduce its lifespan.
- Regularly clean the pad to remove dust and debris. This can be done with a brush or compressed air.
- Store your sander and pad in a cool, dry place when not in use. This will help prevent premature wear and tear.
By following these guidelines, you can ensure that your Ryobi random orbital sander continues to perform at its best, providing you with smooth, professional results for years to come.