Options
- Useful chamber temperature 1300 °C (nur für die Betriebsart Härten)
- Temperature controller G800
- Temperature program controller
- Serial interface for G800 controller
- Screen recorder
- Gas purging device with sheet cover around furnace brick lining
- Lifting door
PRODUCT SPECIFICATIONS
Sizes
| Model | Liter | Inside dimensions mm (B x T x H) | T. max. °C | Heating power kW |
|---|---|---|---|---|
| AHK-40** | 40 | 340 x 500 x 240 | 1200 °C – hardening 800 °C – annealing
| 13,5 |
| AHK-70** | 72 | 400 x 600 x 300 | 1200 °C – hardening 800 °C – annealing
| 18 |
| AHK-160 | 160 | 500 x 800 x 400 | 1200 °C – hardening 800°C – annealing
| 26 |
| AHK-315 | 315 | 630 x 1000 x 500 | 1200 °C – hardening 800°C – annealing
| 41 |
| AHK-600 | 600 | 800 x 1300 x 580 | 1200 °C – hardening 800 °C – annealing
| 54 |
**also available as table unit
Technical data
Furnace housing
Furnace housing and housing of separate switch box consist of a lightweight sheet steel construction. The painting with structural lacquer serves as protection against corrosion. The chosen colours blue/white give a nice appearance to the entire furnace.
Insulation
The rear ventilated brick lining of the furnace consists of high quality lightweight refractory bricks in combination with modern fiber insulation materials which assure a high thermal capacity at low energy consumption.
Heating
The heating is effected by free radiating Kanthal-A1-heating spirals (hair pins) in rims of the brick lining (2 side walls, rear wall and bottom).
The bottom heating is covered with SiC plates (good thermal conductivity).
For operation as hardening furnace up to 1200°C or as annealing furnace with forced air circulation up to 800°C either the left of right ringed door is used. The door for annealing up to 800°C is provided with a ventilator and an air duct device which results in uniform furnace temperature.
The respective operation mode of the furnace determined by the corresponding closed door. Overheating in annealing mode is prevented by means of a safety controller.
Switch and control unit
The control unit is located in a separate switch – box, which is connected to the furnace via flexible lines and can also be wall hinged. The furnace is supplied with the following controller:
- Temperature controller G400
- 2 or 3 setpoint controller with PID behaviour
- Logic output
- One heating ramp – freely programmable velocity / ramp function
- Display of actual value (desired value displayed after pressing the button)
- Self-optimization prevents overshooting
- Separation of control and configuration level (prevents undesired changes)
- Alarm signal in case of thermocouple fracture
- Timer with turn-on & turn-off delay (dwell time)
- Temperature control for protection against overheating
PRODUCT PROPERTIES
| Product Line: | type series |
|---|---|
| Operation Mode: | Batch |
| Construction Types: | Furnace |
| Designs: | Chamber furnace |
| Temperature Max (°C): | 1200 |
| Heatings: | electrical |
| Heatingmethods: | resistance |
| Atmospheres: | Air |
| Applications: | annealing, hardening, heat treatment, powder carburization, pre-heating, shrink fitting, stress-relieving, tempering |
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