This document provides specifications for RETORT FURNACES with INERT GAS that can reach temperatures of 1050°C. The furnaces have a semi-automatic jib crane and airtight retort with multilayer insulation. Heating is provided by elements surrounding the working chamber. They are designed to work with non-flammable gases like nitrogen or argon. The furnaces have a single-phase 230V, 50Hz electricity supply and digital temperature controller. They are delivered with the furnace, retort, inert gas equipment, and retort support. Two models are listed that vary in their inclusion of a forced cooling device for the retort.