Muffle Furnaces up to 1400 °C

Heating elements on support tubes radiating freely into the furnace chamber provide for particularly short heating times and a maximum temperature of 1400 °C.

Process Control

Function and equipment

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These models stand out for their excellent workmanship, advanced and attractive design, and high level of reliability. Heating elements on support tubes radiating freely into the furnace chamber provide for particularly short heating times and a maximum temperature of 1400 °C. These muffle furnaces are a good alternative to the familiar L(T) ../12 series when higher application temperatures are needed.

Standard Equipment

  • Tmax 1400 °C
  • Heating from two sides
  • Heating elements on support tubes ensure free heat radiation and a long service life
  • 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)
  • Adjustable air inlet integrated in door
  • Exhaust air outlet in rear wall of furnace
  • Controller with touch operation 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

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 process gases (not available in combination with chimney, chimney with fan or catalytic converter), not gas tight
  • Manual or automatic gas supply system
  • Process control and documentation via VCD software package for monitoring, documentation and control

Technical specifications

Model

Tmax

Inner dimensions in mm

Volume

Outer dimensions2 in mm

Temperature uniformity of +/− 5K in the empty workspace5

Max. connected load

Electrical

Weight

Heating time

 

in °C1

w

d

h

in l

W

D

H3

w

d

h

in kW

connection

in kg

in min4

L, LT 5/14

1400

225

175

130

5

490

450

580+320

170

120

80

2.6

1-phase

42

45

L, LT 9/14

1400

250

250

170

9

530

525

630+350

180

190

120

3.5

1-phase

55

50

L, LT 15/14

1400

250

350

170

15

530

625

630+350

180

290

120

3.5

1-phase

63

70

1Recommended working temperature for processes with longer dwell times is 1300 °C
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)
5Temperature uniformity of +/− 5 K with closed fresh-air inlet in empty work space according to DIN 17052-1 at working temperatures above 800 °C 


 

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