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Folding e-scooter manufacturer opts for ZwickRoell's testing expertise

The energy transition is driving a constant demand for new mobility concepts, particularly for cities and conurbations. Ulm-based development center and Luxembourg-based manufacturing Ujet's folding e-scooter is easy to handle and well suited to city requirements. Focal areas for Ujet include functionality, design and networking; safety is also a main priority, leading the company to invest in ZwickRoell’s quality control expertise.

Ujet's electric scooters fold up like a folding bicycle, reducing the amount of space occupied. They can be ridden on a car license, have a range of up to 150 km and are equipped with GPS, LTE, WLAN and Bluetooth.

The entire scooter weighs a bare 49-55 kg. Maximum speed is electronically limited to 45 kph to allow the vehicle to be used by car license holders. Ready for the road the scooter measures 156 x 64 x 120 cm; dimensions when folded are 84 x 57 x 120 cm.

To ensure adequate rigidity so that safety in operating mode would not be compromised by this mechanical flexibility, comprehensive simulation calculations were performed during product development. Following completion of the simulations, potential "critical points" in the frame design were identified. To enable final conclusions to be drawn concerning eventual load capacity, Ujet decided to make use of ZwickRoell's testing laboratory. The aim was to determine the maximum load capacity of the frame through tensile and compression tests on the relevant parts.

For this ZwickRoell constructed a special test device to enable the scooter frame to be loaded in line with specifications. Test results showed that the simulation values had been significantly exceeded and the frame would comfortably withstand the maximum possible loadings.