Model LM -Laboratory Muffle Furnace
Laboratory Chamber Furnace, ASW Insulation, TMAX 1340°C, 1,5 - 18,4 L. APPLICATION Laboratory muffle furnaces for all applications up to 1200 °C. Standard controller Jumo: PID controller with one free programmable heating ramp. Option: Controller SE 40 Li with 25 programs each 25 steps. Temperature increase to Tmax 1340 °C for LM 312, LM 412 and LM 512. (LM 112 up to 1200 °C only). Tilting device for LM 112. Exhaust device, gas flushing, post combustion burner.
The most important characteristics
- Perfect for heat treatment and sintering
- Also used in laboratories for numerous processes
- Fiber insulated laboratory muffle furnace
- Compact muffle furnace
- Max. operating temperature 1200°C and 1340°C
- 90° tiltable for horizontal/vertical operation with version LM-112
- Various temperature controllers available
- Wide range of capabilities
- Very light weight
- High quality - made in Germany
- Easy to handle
We make it possible
Linn High Therm is specialized in customizing its products to customer´s needs. Please let us know if you desire any modifications.
Options
- Exhaust device
- Gas flushing
- Post combustion burner
- Program controller
- Screen recorder
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 Line: type series
- Operation Mode: Batch
- Construction Types: Furnace
- Designs: Chamber furnace
- Temperature Max (°C): 1200
- Heatings: electrical
- Heatingmethods: resistance
- Atmospheres: Air