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| N 41/H | N 7/H as table-top model |
Working with protective gas boxes for a protective gas atmosphere using a loading carriage
To withstand harsh use in the laboratory, e.g. when heat-treating metals, robust insulation with light refractory bricks is necessary. The N 7/H - N 61/H models are a perfect fit to solve this problem. The furnaces can be extended with a variety of accessories, like annealing boxes for operation under protective gas, roller guides, or a cooling station with a quenching bath. Even high-performance applications like the annealing of titanium in medical applications can be implemented without the use of expensive and complicated annealing systems.
- Tmax 1280 °C
- Three-sided heating from both sides and the floor
- Heating elements on support tubes ensure free heat radiation and a long service life
- Floor heating protected by heat-resistant SiC plate
- Multilayer insulation with high-quality lightweight refractory bricks in the furnace chamber
- Exhaust opening in the side of the furnace, or on back wall of furnace in the N 31/H models and higher
- Models N 7/H - N 17/HR are designed as tabletop models
- Stand included with model N 31/H and up
- Parallel swinging door which opens downward, or upward upon request
- Manual or automatic gassing system
| Model | Tmax | Inner dimensions in mm | Volume | Outer dimensions in mm | Power | Electrical | Weight | Minutes | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | w | d | h | in L | W | D | H | kW | connection* | in kg | to Tmax | |
| N 7/H | 1280 | 250 | 250 | 120 | 7 | 720 | 640 | 510 | 3,0 | single-phase | 60 | 180 |
| N 11/H | 1280 | 250 | 350 | 140 | 11 | 720 | 740 | 510 | 3,6 | single-phase | 70 | 180 |
| N 11/HR | 1280 | 250 | 350 | 140 | 11 | 720 | 740 | 510 | 5,5 | 3-phase¹ | 70 | 120 |
| N 17/HR | 1280 | 250 | 500 | 140 | 17 | 720 | 890 | 510 | 6,4 | 3-phase¹ | 90 | 120 |
| N 31/H | 1280 | 350 | 350 | 250 | 31 | 840 | 1010 | 1320 | 15,0 | 3-phase | 210 | 105 |
| N 41/H | 1280 | 350 | 500 | 250 | 41 | 840 | 1160 | 1320 | 15,0 | 3-phase | 260 | 120 |
| N 61/H | 1280 | 350 | 750 | 250 | 61 | 840 | 1410 | 1320 | 20,0 | 3-phase | 400 | 120 |
| ¹Heating only between two phases *Please see page 50 for information on mains voltage | ||||||||||||
Our wide selection of annealing and hardening furnaces can be extended with a variety of hardening accessories to suit your application. The accessories shown below represent only a small fraction of the products available. For further details, please see our separate catalogues for heat-treatment furnaces and hardening accessories.
Hardening and Annealing Boxes
- Hardening and annealing boxes with or without protective gas connectors, up to 1100 °C, also in a tailor-made variant for cold evacuation, for instance for the annealing of small parts and bulk goods
Annealing Tray with Holder
- Annealing tram with alloy bag and holder with protective gas connection for models N 7/H to N 61/H for annealing and hardening under protective gas and quenching in air
Hearth Plates
- Hearth plates for up to 1100 °C for protection of the furnace floor for models N 7/H to N 61/H, edged on three sides
Hardening Tongs
- Hardening tongs in various sizes and forms for use in annealing and hardening
Heat Treating Foil
- Heat treating foil for wrapping of samples for oxidation-free annealing and hardening of steels up to 1200 °C
Gloves
- Heat-resistant gloves to 600 °C or 900 °C for protection of operator during loading
