Lubrication-free towards the sun

In order to be able to supply mobile homes with electricity independently, the company CityFreighter has developed a solar tracker that automatically aligns itself with the sun and thus ensures maximum energy yield. Its mechanics consist of lubrication-free motion plastics from Igus. They ensure precise and maintenance-free movements of the solar panel, even in adverse weather conditions.

Imagine: You have the perfect parking spot by the lake, but there is not enough electricity because the solar panel is pointing rigidly in one direction. This is exactly where the new "Solartrackr" from CityFreighter comes into play - a mobile solar tracker that automatically aligns itself with the sun and thus maximizes energy yield. An integrated anemometer ensures that the system automatically retracts in strong winds. In addition, it can be extended to a set height to avoid collisions with roof hatches.

With a price of just 1,381 euros (plus solar flex panel), the Solartrackr is a cost-effective alternative to a more expensive and heavier model from California, which costs around 5,000 euros. Both models are the world's first mass-produced solar trackers for motorhomes. Weighing just 21 kilograms - when using a large 340-watt panel - the Solartrackr is light, mobile and ideal for motorhome owners. But the potential goes far beyond that: bus stops and remote locations could also benefit from this technology.

Lubrication-free motion plastics withstand wind and weather

The heart of the solar tracker is the Igus components. The PRT-04 slewing ring bearing, for example, enables precise and lubrication-free alignment of the solar panels in any direction. In addition, printed Igus gears are used, which ensure precise angle adjustment of the slewing ring bearing. This means that the best angle to the sun is always found, which significantly increases the energy yield.

The height of the module is adjusted using a robust trapezoidal thread spindle made of stainless steel and the matching spindle nut made of the high-performance plastic iglidur J, which work precisely even in changing weather conditions. In order to optimize the scissor bearing, CityFreighter also uses various Igus plain bearings and thrust washers made of the long-running materials iglidur J, iglidur G and iglidur W300. These components are characterized by their durability, freedom from maintenance and wear resistance - ideal for use in harsh environments.

"The Igus components are a decisive factor for our Solartrackr. Their lack of lubrication, precision and durability enable us to offer a reliable and maintenance-free solution that is not only efficient but also cost-effective," explains Michael Schoening, Managing Director of CityFreighter Europe GmbH. The Solartrackr is currently in the transition phase from prototype to series production. The company is currently preparing for series production. To further advance this process, Michael Schoening has launched a presale campaign on a crowdfunding platform. Early supporters or buyers have the chance to be the first to purchase the Solartrackr and benefit directly from this pioneering technology.