Swiss Motors Heading for Venus
Venus has almost the same size, mass, density, consistence and gravity as the earth, however, the temperatures on this planet are hot enough to melt lead. Venus is surrounded by a thick, toxic atmosphere which covers a burned surface with temperatures around 470°C and has a pressure that is ninety times higher than on Earth. So fare more than 40 spacecraft have already set out to explore Venus. The Magellan mission in the early 1990s for example mapped 98% of the planet’s surface. maxon motor (headquartered in Sachseln, Switzerland) developed motors that can withstand this extreme heat.
In request from Jet Propulsion Laboratory (JPL), which builds satellites and space probes for NASA, maxon motor developed the UHT, an ultra-high temperature motor made of special materials that are resistant to 500°C and higher. Using only stainless steel and ceramic components the newly designed motor ran at 450°C for one hour. This type of motor can be used in any application with particularly high temperature requirements, such as extinguishing robots, deep drilling, or in space.
The Venus motor, EC-4pole 32 HD, is based on maxon’s existing Heavy Duty (HD) motor. The engineers were able to draw upon existing knowledge to build a highly heat-resistant version. The 22 mm diameter motors are also capable of withstanding vibration up to 25g rms, as well as shocks and impacts up to 100g. The EC-4pole 32 HD for example is ideal for environments where it is exposed to extreme temperatures, high vibration, or ultra-high vacuum.