We particularly recommend the muffle furnace L 9/11/SKM for heat treatment of aggressive substances. The furnace has a ceramic muffle with embedded heating from four sides. The muffle furnace thus combines a very good temperature uniformity with excellent protection of the heating elements from aggressive atmospheres. Another aspect is the smooth, nearly particle free muffle (furnace door made of fiber insulation), an important quality feature.
Standard Equipment
- Tmax 1100 °C
- Muffle heated from four sides
- Furnace chamber with embedded ceramic muffle, high resistance to aggressive gasses and vapours
- Dual shell housing made of textured stainless steel sheets with additional fan cooling for low surface temperature
- Exclusive use of insulation materials without categorization according to EC Regulation No. 1272/2008 (CLP)
- Optional flap door (L) which can be used as work platform or lift door (LT) with hot surface facing away from the operator
- Adjustable working air inlet in the door
- Exhaust air outlet in rear wall of furnace
- Controller B510 (5 programs with each 4 segments)
- Solid state relays provide for lownoise operation
- Defined application within the constraints of the operating instructions
- NTLog Basic for Nabertherm controller: recording of process data with USB-flash drive
Additional Equipment
- Chimney, chimney with fan or catalytic converter
- Over-temperature limiter with adjustable cutout temperature as temperature limiter to protect the furnace and load
- Protective gas connection to purge with non-flammable protective or reaction gases (not available in combination with chimney, chimney with fan or catalytic converter) not gas tight
- Manual or automation gas supply system
- Port for thermocouple in the rear wall or in the furnace door
- Process control and documentation via VCD software package for monitoring, documentation and control
| Modell | Tmax | Inner dimensions in mm | Volume | Outer dimensions2 in mm | Connected | Electrical | Weight | Heating time | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| in °C1 | w | d | h | in l | W | D | H | load in kW | connection* | in kg | in min4 | |
| L 9/11/SKM | 1100 | 230 | 240 | 170 | 9 | 490 | 505 | 580 | 3.4 | 1-phase | 50 | 75 |
| LT 9/11/SKM | 1100 | 230 | 240 | 170 | 9 | 490 | 505 | 580+3203 | 3.4 | 1-phase | 50 | 75 |
| 1Recommended working temperature for processes with longer dwell times is 1000 °C*Please see page 75 for more information about supply voltage 2External dimensions vary when furnace is equipped with additional equipment. Dimensions on request. 3Including opened lift door 4Heating time of the empty and closed furnace up to Tmax −100 K (connected to 230 V 1/N/PE) |
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US 7454 
BR 3225 
CA 1694 
AU 1678 
TH 1601 
JP 1495 
SG 1228 
VN 928 
