This document provides information about a multi-purpose heat treatment furnace for the needles industry manufactured by SOLO Swiss SA. The furnace, model SOLO Swiss Profitherm 80, can perform austenitizing, carburizing and tempering processes, and has a working temperature of 1000°C for the furnace and 100°C for the attached oil tank. It can hold loads up to 300x300x600mm and 80kg, and provides advantages like hardness homogeneity and reduced deformation for the needles industry in Germany.