Economy Muffle Furnaces up to 1100 °C

Quality features like the dual shell furnace housing of rust-free stainless steel, their compact, lightweight constructions, or the heating elements encased in quartz glass tubes make these models reliable partners for your application.

Process Control

Function and equipment

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With their convincing price/performance ratio and the fast heat-up rates, these compact muffle furnaces are perfect for many applications in the laboratory. Quality features like the dual shell furnace housing of rust-free stainless steel, their compact, lightweight constructions, or the heating elements encased in quartz glass tubes make these models reliable partners for your application.

Standard Equipment

  • Tmax 1100 °C
  • Heating from two sides from heating elements protected in quartz glass tubes
  • Fast heating times (see table)
  • Maintenance-friendly replacement of heating elements and insulation
  • Housing coated in RAL 9003
  • Solid state relays provide for lownoise operation
  • 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)
  • Flap door which can also be used as a work platform
  • Exhaust air outlet in rear wall
  • Compact dimensions and light weight
  • Controller mounted under the door to save space
  • Controller R7 (adjustable for one temperature)
  • Defined application within the constraints of the operating instructions

Additional equipment

Additional Equipment

  • Chimney, chimney with fan or catalytic converter (not for LE 1 and LE 2)

Technical specifications

Model

Tmax

Inner dimensions in mm

Volume

Outer dimensions2 in mm

Temperature uniformity of +/− 5K in the empty workspace4

Connected

Electrical

Weight

Heating time

 

in °C1

w

d

h

in l

W

D

H

w

d

h

load in kW

connection*

in kg

in min3

LE 1/11

1100

90

115

110

1

290

280

410

40

65

60

1.6

1-phase

15

10

LE 2/11

1100

110

180

110

2

330

390

410

60

130

60

1.9

1-phase

20

15

LE 6/11

1100

170

200

170

6

390

440

470

120

150

120

2.0

1-phase

27

30

LE 14/11

1100

220

300

220

14

440

540

520

170

250

170

3.2

1-phase

35

35

LE 24/11

1100

260

330

280

24

490

570

590

200

270

230

3.5

1-phase

42

40

1Recommended working temperature for processes with longer dwell times is 1050 °C*Please see page 75 for more information about supply voltage
2External dimensions vary when furnace is equipped with additional equipment. Dimensions on request.
3Heating time of the empty and closed furnace up to Tmax −100 K (connected to 230 V 1/N/PE)
4Temperature 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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