This mobile robot chassis was developed for the harsh and complex conditions of construction operations. Its wear-resistant oxidised skeletal parts, along with the waterproof and dustproof body, are an appropriate response to these challenges. A system for simultaneous localisation and mapping, paired with a dual radar system, improves its ability to cross barriers and other obstacles. Equipped with a lifting platform, the compact chassis is able to carry loads of up to 1,000 kg, and it can also position medium-sized industrial manipulators or serve as a related working platform.