Annealing and Hardening Furnaces with Wire Heating

N 7/H - N 641/13

The models N 31/H ff. have been specially developed for preheating of moulds but also for hardening jobs when toolmaking.

• Compact, robust design
• Three-sides heating: from both side walls and floor
• High-quality, free-radiating heating elements mounted on support tubes for longest service life
• Bottom heating protected by heat conducting SiC tiles
• Parallel guided downward swinging door (user protected from heat radiation)
• Stainless steel upper door jamb protects furnace structure when furnace is opened hot
• Exhaust opening in the side of the furnace, or on back wall of furnace in the N 31/H models and higher
• Temperature uniformity up to ∆T 20 K according to DIN 17052-1
• Low energy consumption due to multi-layer insulation
• Gas spring dampers provide for easy door opening and closing
• Heat resistant zinc paint for protection of door and door frame (for N81 and larger)