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1250°C Muffle Furnace LMF-D73

LMF-D73 model of Muffle Furnace is uniquely designed furnace having optimal insulation properties and basic control options with user friendly operating menu in 4 line display for easy operation. With heating elements Fe-Cr-Al, embedded into bricks, it is ideal for maximum and continuous working temperature of 1250 °C. It is equipped with instantaneous energy consumption indicator, calculator for average working temperature, Total working hour counter and descriptive error indicator and is efficient, accurate and reliable in working.

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Max. Temperature 1250 °C
Capacity 100 L
Heating Program 16 step
Thermal Rate 3 °C - 20 °C
Heating element Fe-Cr-Al
Program Memories 5
Thermocouple Type K Type
Heating Element Placement Embedded into brick walls
Inner Insulation Material Insulating Fire Brick
Front Face Insulation Material Insulating Fire Brick
Door Insulation Material Ceramic Fibre Board
Housing Material Steel Sheet
Housing Coating Epoxy powder coating
Chimney Standard
Heating Element Protection None
Lockable Door Handle Sidewards
Temperature Control Accuracy ± 1 °C (can vary at low temperatures)
Measurement Accuracy ± 1 °C
Inner Volume Temperature Homogenity ± 10 °C
Auto Start at Certain Date Yes
Max. Current 3 x 21 A
Power 14.000 W
Inner Chamber Dimension (W x H x D) 460 x 365 x 595 mm
Product Outer Dimension (W x H x D) 756 x 833 x 990 mm
Gross Dimension ( W x H x D) 816 x 1150 x 893 mm
Net Weight 160 kg
Gross weight 190 kg
  • PID controller
  • LCD display that shows current and target temperature
  • Optimum insulation properties
  • 2, 4, 8 and 16 step heating programs available
  • Fe-Cr-Al heating element embedded in brick walls
  • Accurate measurement and control of temperature using K and S type thermocouple
  • Second thermocouple for different adjustable purposes
  • Durable inside lining made of light insulating bricks
  • Dual shell housing for low outer surface temperature
  • Steel sheet housing material
  • Insulating fire brick as inner and front face insulation material
  • Ceramic fibre board as door insulation material
  • Quartz tube used to protect heating element
  • Provision of audio warning as the step changes and at the end of the program
  • Provision of automatic power cut-off to the heating elements and alert if the control unit/control card is over heated
  • Instantaneous energy consumption indicator
  • Calculator for average working temperature
  • Descriptive error indicator
  • User friendly menu

Sr. No. Accessory
1 High Temperature Gloves
2 Tongs
3 Alumina Crucibles
4 Metal Crucibles
5 Alumina Combustion Boats
6 Ceramic pipes
7 Extra Thermocouples

Over Temperature Limiter
Lift-up Door
Stainless Steel body
Gas Supply Connection
Open Door Sensor
Second Thermocouple
Observation Hole
PC Connection
110 V Power Supply

Inner Module: Changing inner module renews your furnace close to a brand new furnace
Door Insulation: With sheet metal holder vessel
Control Card: Easy-to-replace, pre-programmed
Power Card: Easy-to-replace
Display: 4 x 20 LCD display
Cooling Fan: 80 x 80 x 20 / 220 V fan
Chimney Fan: 40 x 40 x 10 / 5V fan

Compare Models

Model Max. Temperature Capacity Heating Program Thermal Rate Heating element Program Memories Thermocouple Type Heating Element Placement Inner Insulation Material Front Face Insulation Material Door Insulation Material Housing Material Housing Coating Chimney Heating Element Protection Lockable Door Handle Temperature Control Accuracy Measurement Accuracy Inner Volume Temperature Homogenity Auto Start at Certain Date Max. Current Power Inner Chamber Dimension (W x H x D) Product Outer Dimension (W x H x D) Gross Dimension ( W x H x D) Net Weight Gross weight
LMF-D10 1250 °C 5 L 2 step 3 °C - 20 °C Fe-Cr-Al 2 K Type Embedded into brick walls Insulating Fire Brick Insulating Fire Brick Ceramic Fibre Board Steel Sheet Epoxy powder coating Standard None Sidewards ± 1 °C (can vary at low temperatures) ± 1 °C ± 10 °C No 10A 2.250 W 150 x 150 x 225 mm 446 x 618 x 620 mm 506 x 780 x 678 mm 49 kg 63 kg
LMF-D11 1250 °C 5 L 4 step 3 °C - 20 °C Fe-Cr-Al 4 K Type Embedded into brick walls Insulating Fire Brick Insulating Fire Brick Ceramic Fibre Board Steel Sheet Epoxy powder coating Standard None Sidewards ± 1 °C (can vary at low temperatures) ± 1 °C ± 10 °C Yes 10A 2.250 W 151 x 150 x 225 mm 447 x 618 x 620 mm 507 x 780 x 678 mm 49 kg 63 kg
LMF-D12 1250 °C 5 L 8 step 3 °C - 20 °C Fe-Cr-Al 6 K Type Embedded into brick walls Insulating Fire Brick Insulating Fire Brick Ceramic Fibre Board Steel Sheet Epoxy powder coating Standard None Sidewards ± 1 °C (can vary at low temperatures) ± 1 °C ± 10 °C Yes 10A 2.250 W 152 x 150 x 225 mm 448 x 618 x 620 mm 508 x 780 x 678 mm 49 kg 63 kg
LMF-D13 1250 °C 5 L 16 step 3 °C - 20 °C Fe-Cr-Al 5 K Type Embedded into brick walls Insulating Fire Brick Insulating Fire Brick Ceramic Fibre Board Steel Sheet Epoxy powder coating Standard None Sidewards ± 1 °C (can vary at low temperatures) ± 1 °C ± 10 °C Yes 10A 2.250 W 153 x 150 x 225 mm 449 x 618 x 620 mm 509 x 780 x 678 mm 49 kg 63 kg
LMF-D20 1250 °C 7 L 2 step 3 °C - 20 °C Fe-Cr-Al 2 K Type Embedded into brick walls Insulating Fire Brick Insulating Fire Brick Ceramic Fibre Board Steel Sheet Epoxy powder coating Standard None Sidewards ± 1 °C (can vary at low temperatures) ± 1 °C ± 10 °C No 16A 3.500 W 180 x 160 x 260 mm 476 x 628 x 655 mm 536 x 815 x 688 mm 56 kg 71 kg
LMF-D21 1250 °C 7 L 4 step 3 °C - 20 °C Fe-Cr-Al 4 K Type Embedded into brick walls Insulating Fire Brick Insulating Fire Brick Ceramic Fibre Board Steel Sheet Epoxy powder coating Standard None Sidewards ± 1 °C (can vary at low temperatures) ± 1 °C ± 10 °C Yes 16A 3.500 W 180 x 160 x 260 mm 476 x 628 x 655 mm 536 x 815 x 688 mm 56 kg 71 kg
LMF-D22 1250 °C 7 L 8 step 3 °C - 20 °C Fe-Cr-Al 6 K Type Embedded into brick walls Insulating Fire Brick Insulating Fire Brick Ceramic Fibre Board Steel Sheet Epoxy powder coating Standard None Sidewards ± 1 °C (can vary at low temperatures) ± 1 °C ± 10 °C Yes 16A 3.500 W 180 x 160 x 260 mm 476 x 628 x 655 mm 536 x 815 x 688 mm 56 kg 71 kg
LMF-D23 1250 °C 7 L 16 step 3 °C - 20 °C Fe-Cr-Al 5 K Type Embedded into brick walls Insulating Fire Brick Insulating Fire Brick Ceramic Fibre Board Steel Sheet Epoxy powder coating Standard None Sidewards ± 1 °C (can vary at low temperatures) ± 1 °C ± 10 °C Yes 16A 3.500 W 180 x 160 x 260 mm 476 x 628 x 655 mm 536 x 815 x 688 mm 56 kg 71 kg
LMF-D30 1250 °C 10 L 2 step 3 °C - 20 °C Fe-Cr-Al 2 K Type Embedded into brick walls Insulating Fire Brick Insulating Fire Brick Ceramic Fibre Board Steel Sheet Epoxy powder coating Standard None Sidewards ± 1 °C (can vary at low temperatures) ± 1 °C ± 10 °C No 16 A 3.500 W 200 x 180 x 300 mm 496 x 648 x 695 mm 556 x 855 x 708 mm 60 kg 77 kg
LMF-D31 1250 °C 10 L 4 step 3 °C - 20 °C Fe-Cr-Al 4 K Type Embedded into brick walls Insulating Fire Brick Insulating Fire Brick Ceramic Fibre Board Steel Sheet Epoxy powder coating Standard None Sidewards ± 1 °C (can vary at low temperatures) ± 1 °C ± 10 °C Yes 16 A 3.500 W 200 x 180 x 300 mm 496 x 648 x 695 mm 556 x 855 x 708 mm 60 kg 77 kg
LMF-D32 1250 °C 10 L 8 step 3 °C - 20 °C Fe-Cr-Al 6 K Type Embedded into brick walls Insulating Fire Brick Insulating Fire Brick Ceramic Fibre Board Steel Sheet Epoxy powder coating Standard None Sidewards ± 1 °C (can vary at low temperatures) ± 1 °C ± 10 °C Yes 16 A 3.500 W 200 x 180 x 300 mm 496 x 648 x 695 mm 556 x 855 x 708 mm 60 kg 77 kg
LMF-D33 1250 °C 10 L 16 step 3 °C - 20 °C Fe-Cr-Al 5 K Type Embedded into brick walls Insulating Fire Brick Insulating Fire Brick Ceramic Fibre Board Steel Sheet Epoxy powder coating Standard None Sidewards ± 1 °C (can vary at low temperatures) ± 1 °C ± 10 °C Yes 16 A 3.500 W 200 x 180 x 300 mm 496 x 648 x 695 mm 556 x 855 x 708 mm 60 kg 77 kg
LMF-D40 1250 °C 20 L 2 step 3 °C - 20 °C Fe-Cr-Al 2 K Type Embedded into brick walls Insulating Fire Brick Insulating Fire Brick Ceramic Fibre Board Steel Sheet Epoxy powder coating Standard None Sidewards ± 1 °C (can vary at low temperatures) ± 1 °C ± 10 °C No 2 x 10 / 1 x 20 A 4.500 W 250 x 200 x 395 mm 546 x 668 x 790 mm 606 x 950 x 728 mm 81 kg 101 kg
LMF-D41 1250 °C 20 L 4 step 3 °C - 20 °C Fe-Cr-Al 4 K Type Embedded into brick walls Insulating Fire Brick Insulating Fire Brick Ceramic Fibre Board Steel Sheet Epoxy powder coating Standard None Sidewards ± 1 °C (can vary at low temperatures) ± 1 °C ± 10 °C Yes 2 x 10 / 1 x 20 A 4.500 W 250 x 200 x 395 mm 546 x 668 x 790 mm 606 x 950 x 728 mm 81 kg 101 kg
LMF-D42 1250 °C 20 L 8 step 3 °C - 20 °C Fe-Cr-Al 6 K Type Embedded into brick walls Insulating Fire Brick Insulating Fire Brick Ceramic Fibre Board Steel Sheet Epoxy powder coating Standard None Sidewards ± 1 °C (can vary at low temperatures) ± 1 °C ± 10 °C Yes 2 x 10 / 1 x 20 A 4.500 W 250 x 200 x 395 mm 546 x 668 x 790 mm 606 x 950 x 728 mm 81 kg 101 kg
LMF-D43 1250 °C 20 L 16 step 3 °C - 20 °C Fe-Cr-Al 5 K Type Embedded into brick walls Insulating Fire Brick Insulating Fire Brick Ceramic Fibre Board Steel Sheet Epoxy powder coating Standard None Sidewards ± 1 °C (can vary at low temperatures) ± 1 °C ± 10 °C Yes 2 x 10 / 1 x 20 A 4.500 W 250 x 200 x 395 mm 546 x 668 x 790 mm 606 x 950 x 728 mm 81 kg 101 kg
LMF-D50 1250 °C 40 L 2 step 3 °C - 20 °C Fe-Cr-Al 2 K Type Embedded into brick walls Insulating Fire Brick Insulating Fire Brick Ceramic Fibre Board Steel Sheet Epoxy powder coating Standard None Sidewards ± 1 °C (can vary at low temperatures) ± 1 °C ± 10 °C No 3 X 11 A 7.500 W 300 x 300 x 445 mm 630 x 785 x 840 mm 690 x 1000 x 845 mm 112 kg 136 kg
LMF-D51 1250 °C 40 L 4 step 3 °C - 20 °C Fe-Cr-Al 4 K Type Embedded into brick walls Insulating Fire Brick Insulating Fire Brick Ceramic Fibre Board Steel Sheet Epoxy powder coating Standard None Sidewards ± 1 °C (can vary at low temperatures) ± 1 °C ± 10 °C Yes 3 X 11 A 7.500 W 300 x 300 x 445 mm 630 x 785 x 840 mm 690 x 1000 x 845 mm 112 kg 136 kg
LMF-D52 1250 °C 40 L 8 step 3 °C - 20 °C Fe-Cr-Al 6 K Type Embedded into brick walls Insulating Fire Brick Insulating Fire Brick Ceramic Fibre Board Steel Sheet Epoxy powder coating Standard None Sidewards ± 1 °C (can vary at low temperatures) ± 1 °C ± 10 °C Yes 3 X 11 A 7.500 W 300 x 300 x 445 mm 630 x 785 x 840 mm 690 x 1000 x 845 mm 112 kg 136 kg
LMF-D53 1250 °C 40 L 16 step 3 °C - 20 °C Fe-Cr-Al 5 K Type Embedded into brick walls Insulating Fire Brick Insulating Fire Brick Ceramic Fibre Board Steel Sheet Epoxy powder coating Standard None Sidewards ± 1 °C (can vary at low temperatures) ± 1 °C ± 10 °C Yes 3 X 11 A 7.500 W 300 x 300 x 445 mm 630 x 785 x 840 mm 690 x 1000 x 845 mm 112 kg 136 kg
LMF-D60 1250 °C 60 L 2 step 3 °C - 20 °C Fe-Cr-Al 2 K Type Embedded into brick walls Insulating Fire Brick Insulating Fire Brick Ceramic Fibre Board Steel Sheet Epoxy powder coating Standard None Sidewards ± 1 °C (can vary at low temperatures) ± 1 °C ± 10 °C No 3 x 15 A 10.200 W 400 x 300 x 495 mm 730 x 785 x 890 mm 790 x 1050 x 845 mm 133 kg 160 kg
LMF-D61 1250 °C 60 L 4 step 3 °C - 20 °C Fe-Cr-Al 4 K Type Embedded into brick walls Insulating Fire Brick Insulating Fire Brick Ceramic Fibre Board Steel Sheet Epoxy powder coating Standard None Sidewards ± 1 °C (can vary at low temperatures) ± 1 °C ± 10 °C Yes 3 x 15 A 10.200 W 400 x 300 x 495 mm 730 x 785 x 890 mm 790 x 1050 x 845 mm 133 kg 160 kg
LMF-D62 1250 °C 60 L 8 step 3 °C - 20 °C Fe-Cr-Al 6 K Type Embedded into brick walls Insulating Fire Brick Insulating Fire Brick Ceramic Fibre Board Steel Sheet Epoxy powder coating Standard None Sidewards ± 1 °C (can vary at low temperatures) ± 1 °C ± 10 °C Yes 3 x 15 A 10.200 W 400 x 300 x 495 mm 730 x 785 x 890 mm 790 x 1050 x 845 mm 133 kg 160 kg
LMF-D63 1250 °C 60 L 16 step 3 °C - 20 °C Fe-Cr-Al 5 K Type Embedded into brick walls Insulating Fire Brick Insulating Fire Brick Ceramic Fibre Board Steel Sheet Epoxy powder coating Standard None Sidewards ± 1 °C (can vary at low temperatures) ± 1 °C ± 10 °C Yes 3 x 15 A 10.200 W 400 x 300 x 495 mm 730 x 785 x 890 mm 790 x 1050 x 845 mm 133 kg 160 kg
LMF-D70 1250 °C 100 L 2 step 3 °C - 20 °C Fe-Cr-Al 2 K Type Embedded into brick walls Insulating Fire Brick Insulating Fire Brick Ceramic Fibre Board Steel Sheet Epoxy powder coating Standard None Sidewards ± 1 °C (can vary at low temperatures) ± 1 °C ± 10 °C No 3 x 21 A 14.000 W 460 x 365 x 595 mm 756 x 833 x 990 mm 816 x 1150 x 893 mm 160 kg 190 kg
LMF-D71 1250 °C 100 L 4 step 3 °C - 20 °C Fe-Cr-Al 4 K Type Embedded into brick walls Insulating Fire Brick Insulating Fire Brick Ceramic Fibre Board Steel Sheet Epoxy powder coating Standard None Sidewards ± 1 °C (can vary at low temperatures) ± 1 °C ± 10 °C Yes 3 x 21 A 14.000 W 460 x 365 x 595 mm 756 x 833 x 990 mm 816 x 1150 x 893 mm 160 kg 190 kg
LMF-D72 1250 °C 100 L 8 step 3 °C - 20 °C Fe-Cr-Al 6 K Type Embedded into brick walls Insulating Fire Brick Insulating Fire Brick Ceramic Fibre Board Steel Sheet Epoxy powder coating Standard None Sidewards ± 1 °C (can vary at low temperatures) ± 1 °C ± 10 °C Yes 3 x 21 A 14.000 W 460 x 365 x 595 mm 756 x 833 x 990 mm 816 x 1150 x 893 mm 160 kg 190 kg
LMF-D73 1250 °C 100 L 16 step 3 °C - 20 °C Fe-Cr-Al 5 K Type Embedded into brick walls Insulating Fire Brick Insulating Fire Brick Ceramic Fibre Board Steel Sheet Epoxy powder coating Standard None Sidewards ± 1 °C (can vary at low temperatures) ± 1 °C ± 10 °C Yes 3 x 21 A 14.000 W 460 x 365 x 595 mm 756 x 833 x 990 mm 816 x 1150 x 893 mm 160 kg 190 kg

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