Sanding wood structures combines two challenges few power tools handle together: fine wood dust is flammable (ATEX zone 22 without proper extraction), and most timber-frame projects under RE2020 are in dense urban environments (occupied housing, schools, hospitals, working offices). Sept Tools' brushless motor runs at 60 dB at the operator station, with constant torque on hardwood knots (oak, douglas fir) and on the polyurethane glue lines of CLT panels. The XB165 Fouine head mounted on the Eland articulated arm sands large CLT ceiling spans without loading the operator's shoulders. The IU33 Longopac class H captures dust at the source through a 22 m continuous sleeve, eliminating manual bag changes and the dust spike they generate. Designed and assembled in Roanne, two-year warranty, 48-hour national service.