Cheaper Than an Overhaul!

DryBot™

Prevent engine corrosion 24/7 with the DryBot automated engine dehydrator.
Totally Automated
The DryBot is totally automated and can be left unattended.
Helps prevent engine corrosion
The DryBot is designed to maintain internal engine humidity below the critical relative humidity at which corrosion occurs on steel surfaces such as cams and lifters.
Self Monitoring
Armed with 12 sensors, the DryBot continually monitors for system and setup faults to ensure system performance.  "Green light, you're good!"
DryBot is compatible with 110 VAC or 220-240 VAC (50/60 Hz) power supplies. Choose the suitable power cord for your region when purchasing: North America, UK, Australia and Euro C power cords are available.

Get THe story & Data Behind DryBot

"The Corrosive Death of a Cessna 210 Engine"
Eliminate the #1 enemy of aircraft engines: Corrosion!
Aircraft engines usually don't "wear out," they "rust out!"  Particularly cams and lifters in owner-flown aircraft, which may not fly at least once per week. ​

An automated engine dehydrator that works!

"I'm happy to now have reliable engine dehydrators on my aircraft. As a busy aircraft owner / pilot, I don't always have time to fly enough to mitigate engine corrosion issues."

- Matthew Dock, President, RPX Technologies

Humidity & Corrosion

Example: Corrosion rate of iron versus relative humidity.
(Corrosion and Corrosion Control, by R. Winston Revie and Herbert H. Uhlig 2008)

When does corrosion Develop?

The green zone, 0-40% relative humidity, won't allow corrosion to develop when the aircraft isn’t flown for more than two weeks. 

40-60% there is some corrosion that begins to develop on the engine if it is left stationary for more than two weeks.

At 60% or more relative humidity, the corrosion growth skyrockets exponentially.

Is my engine at risk for corrosion?

The map below shows the relative humidity across the nation. If the relative humidity is above 40% then corrosion can develop when not flying for more than two weeks. Also, keep in mind these are annual averages. Some places might require a DryBot for only part of the year, where in other places year-round engine dehydration is critical.

FAQs

How does the drybot actually work?
The DryBot pumps air through a desiccant which provides a dry flow of air which is pumped into the engine.  An onboard computer uses 12 sensors to continually monitor system performance.  When the computer senses that the desiccant needs to be regenerated (heated to expel accumulated moisture), the DryBot automatically heats the desiccant and diverts the moist air flow through a port on the bottom of the DryBot.  Once regenerated, the system cools and dry air is again provided to the aircraft engine.  See the Data >
How does dry air get delivered to the engine?
Most often, dry air is injected into the engine via the oil fill, dipstick, vent tube, or exhaust.  The oil fill is preferred since it is easily accessible and provides dry air to the bottom end (crankshaft, cam, lifters) of the engine which is much more expensive to repair than the top (cylinders, pistons).  The crankcase vent tube is viable albeit less desirable because it typically has freeze vents (slots or holes) which can introduce moist air to the air stream.  The exhaust pipe is often most convenient on a 2 stroke engine.  No matter which option is used, an air-tight seal between the dry air delivery tubing and input port is required so dry air is forced throughout the engine. Learn More >
How do i know the drybot is operating correctly?
The DryBot is continually using 12 sensors to monitor humidity, temperatures, currents, voltages, etc. and will flash an error code if any issues are detected.  Otherwise, if the green light is on, you know the DryBot is generating dry air with positive air flow.
How much power does DryBot use?
The DryBot has two normal operational modes: "Running" and "Regenerating." In "Running" mode, it consumes 10 Watts to push dry air through its tubing and to the engine. "Regenerating" mode, using 125 Watts, is activated automatically to dry the desiccant beads, essential for moisture control. This mode's frequency varies with environmental humidity - higher humidity leads to more frequent regenerating cycles, vital for maintaining dry air output.

DryBot is compatible with 110 VAC or 220-240 VAC (50/60 Hz) power supplies. Choose the suitable power cord for your region when purchasing - North American, UK, Australian, or Euro C power cords are currently available. If you need a different type of power cord than those offered, please let us know. We're committed to assisting you in finding a suitable solution whenever possible.
DOES DRYBOT WORK WITH SOLAR POWER?
Yes, but the power output of your system will determine whether or not it's able to power DryBot.

DryBot has two normal operational modes: "Running" and "Regenerating." In "Running" mode, it consumes 10 Watts to push dry air through its tubing and to the engine. "Regenerating" mode, using 125 Watts, is activated automatically to dry the desiccant beads, essential for moisture control. This mode's frequency varies with environmental humidity - higher humidity leads to more frequent regenerating cycles, vital for maintaining dry air output.

DryBot is compatible with 110 VAC or 220-240 VAC (50/60 Hz) power supplies. Choose the suitable power cord for your region and solar setup when purchasing - North American, UK, Australian, or Euro C power cords are currently available. If you need a different type of power cord than those offered, please let us know. We're committed to assisting you in finding a suitable solution whenever possible.

TIME FOR A TUNE UP?

Extend the warranty of your DryBot with remanufactured dessicant, a new air filter and more!

QUESTIONS

Give us a call at ​+1.833.268.7653 or email [email protected]​
ASk a question
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DryBot is a trademark of RPX Technologies, Inc.