Product overviewTabletop LHT-series high-temperature furnaces for laboratory and research use. Compact design with MoSi₂ (molybdenum disilicide) heating elements on both sides of the chamber. Models available with Tmax up to 1800 °C and internal volumes from 1 to 8 L, suitable for sintering technical ceramics such as zirconia dental bridges.
Highlights- Tmax range up to 1800 °C depending on model; recommended working temperature 1750 °C for LHT ../18 models
- MoSi₂ heating elements for high-temperature capability and reduced chemical interaction with the charge
- Dual-shell stainless steel housing with additional fan cooling to keep external surface temperature low
- Insulation materials selected without CLP categorization (EC Reg. 1272/2008)
- Controller P580 with touch operation (50 programs × 40 segments) and NTLog Basic data recording via USB
- Adjustable air inlet and exhaust in the roof; thermocouple type B or S on applicable models
Standard equipment- Available Tmax: 1600 °C, 1650 °C, 1750 °C or 1800 °C
- Factory-fitted MoSi₂ heating elements
- Dual-shell stainless steel cabinet with forced fan cooling
- Touch controller P580 and NTLog Basic for process data
- Adjustable air inlet opening and exhaust opening in roof
- Thermocouple: type B or type S for specified models
Optional equipment- Adjustable over-temperature limiter (safety cutout)
- Thermocouple port in furnace roof
- Protective gas connection for purging with non-flammable process gas (not gas-tight); manual or automatic gas supply
- Stackable saggars/charge holders for two or three loading levels (model dependent)
- Process control and documentation via VCD software package
Technical specifications (excerpt)Model | Tmax (°C) | Inner dimensions (w x d x h) mm | Volume (l) | Outer dimensions (W x D x H) mm | Connected load (kW) | Electrical connection | Weight (kg) | Heating time (min)
LHT 02/16 | 1600 | 130 x 145 x 130 | 2 | 430 x 450 x 570+325 | 3.40 | 1-phase | 33 | 28
LHT 04/16 | 1600 | 160 x 175 x 160 | 4 | 450 x 475 x 610+335 | 3.40 | 1-phase | 39 | 50
LHT 08/16 | 1600 | 200 x 200 x 200 | 8 | 500 x 500 x 650+370 | 6.70 | 3-phase | 47 | 33
LHT 01/17 D | 1650 | 110 x 120 x 120 | 1 | 385 x 425 x 525+195 | 1.95 | 1-phase | 28 | 27
LHT 03/17 D | 1650 | 135 x 135 x 200 | 4 | 412 x 450 x 595+300 | 2.70 | 1-phase | 38 | 57
LHT 02/17 | 1750 | 130 x 145 x 130 | 2 | 430 x 450 x 570+325 | 3.40 | 1-phase | 33 | 46
LHT 04/17 | 1750 | 160 x 175 x 160 | 4 | 450 x 475 x 610+335 | 3.40 | 1-phase | 39 | 90
LHT 08/17 | 1750 | 200 x 200 x 200 | 8 | 500 x 500 x 650+370 | 6.70 | 3-phase | 47 | 50
LHT 02/18 | 1800 | 130 x 145 x 130 | 2 | 430 x 450 x 570+325 | 3.40 | 1-phase | 33 | 56
LHT 04/18 | 1800 | 160 x 175 x 160 | 4 | 450 x 475 x 610+335 | 3.40 | 1-phase | 39 | 106
LHT 08/18 | 1800 | 200 x 200 x 200 | 8 | 500 x 500 x 650+370 | 6.70 | 3-phase | 47 | 60
Notes- Outer dimensions vary when additional equipment is fitted; dimensions available on request
- Heating times refer to an empty, closed furnace up to Tmax −100 K under specified voltage conditions
- Connected load refers to standard configuration and may increase with options
Typical applications- Research laboratories and materials testing
- Sintering of technical ceramics (e.g. zirconia dental prosthetics)
- High-temperature processes requiring compact tabletop furnaces