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)
  • Charging rack with closed or perforated trays for loading the furnace in two levels incl. holder for inserting/removing the trays up to a max. temperature of 800 °C and a max. loading weight per layer of 2 kg for the LE 14/11 respectively 3,5 kg for the LE 24/11

Technical specifications

Model

Tmax

Inner dimensions in mm

Volume

Outer dimensions2 in mm

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

Max. 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
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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