Pyrolisis furnaces without combustion with capacities from 1.00 m³ to 15.00 m³ for cleaning tools, hooks and frames and for de-scaling organic remains from metal-based parts, model FPC, with fold-down door and loading ramp, loading carriage, heated by natural gas, GLP or liquid fuels, post-combustion zone and integrated catalyst, built-in control, and operation and programmer electrical panel.