IP Ratings Explained: Choosing the Right Protection Level for Your Linear Actuator

How Environmental Conditions Shape the Correct IP Rating

Over the years, I’ve seen many actuators fail not because the mechanics were wrong, but because the environment wasn’t fully understood. Moisture, dust, chemical washdown, slurry, outdoor exposure. Each brings its own challenge. This is where IP ratings matter.

IP ratings tell you how resistant an actuator is to dust and water. IP65, IP66, IP67, IP69K, each is designed for specific conditions. The higher the rating, the better the protection, though it’s important to choose appropriately rather than simply choosing the highest number available.

For example, IP65 is suitable for general dust and light water spray. IP66 handles heavier washdown. IP67 protects against temporary immersion. And IP69K is designed for high-pressure cleaning environments.

Choosing the wrong rating often leads to internal moisture, premature bearing failure, corrosion and, eventually, downtime. In agriculture, marine, commercial vehicles and food production environments, I’d always advise erring slightly on the safe side, but with engineering reasoning behind the choice.

It’s not just about sealing. Cable entries, mounting orientation and connector integrity all have an effect. This is why test data and long-standing supplier relationships matter. We’ve worked with our partners for decades and know how their equipment performs in real-world conditions.

The right IP rating is rarely guesswork. With a bit of conversation, we can usually identify exactly what’s required.