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Carbolite Gero’s extensive chamber furnace range has a maximum operating temperature of 1800°C and chamber capacities up to 725 liters. They are suitable for a variety of laboratory, pilot scale and industrial applications. Although there is flexibility in size and temperature, if the application requires the use of modified atmosphere (above 1100°C) or vacuum then a furnace from Carbolite Gero’s tube furnace range should be selected.

Available Models

The ELF laboratory furnaces comprise three bench-mounted models designed for light duty and general use up to 1100°C.

They have a simple drop-down door and a top-mounted ceramic chimney. The combination of low thermal mass insulation and free radiating wire elements embedded in the chamber sides provide efficient heating.

Key features

  • 1100°C maximum operating temperature
  • Carbolite Gero 301 controller with single ramp to setpoint and process timer
  • 6, 14 or 23-liter chamber volumes
  • Dropdown door with an air gap to minimize external temperature
  • Delayed start / process timer function as standard
  • Vacuum formed, low thermal mass insulation
  • Hard ceramic hearth fitted as standard
  • Ventilated via the top-mounted ceramic chimney

Options

  • Over-temperature protection (recommended to protect valuable contents & for unattended operation)

The CWF range of general-purpose laboratory chamber furnaces is bench mounted. Models are available in five sizes with a maximum operating temperature up to 1300°C. 

The airflow in the CWF-B furnaces is enhanced by the addition of air inlet holes in the door and a tall chimney which rapidly removes the fumes from the furnace. 

Key features  

  • Carbolite Gero 301 controller with single ramp to setpoint and process timer  
  • Soft closing door on 5, 13, 21 & 23-liter models  
  • Vertical lift door keeps heated surface away from the user  
  • Delayed start / process timer function as standard  
  • Hard-wearing alumina element carriers, furnace entrance & hearth  
  • Energy-efficient low thermal mass insulation  
  • Free radiating wire-wound elements for optimum uniformity  
  • Easy access to elements & controls simplifies maintenance & servicing 

CWF:  

  • 1100°C, 1200°C or 1300°C maximum operating temperature  
  • 5, 13, 23, 36 or 65 litre chamber volumes 

CWF-B:  

  • Enhanced airflow from tall chimney & door vents for full combustion  

CWF-BAL:  

  • With an integrated balance that runs independently of the furnace control system  
  • Software supplied with the balance may be used to monitor the balance reading via a computer  
  • The maximum capacity of balance is 3 kg with a resolution of 0.01 g (other capacities available) 

Options

  • A range of sophisticated digital controllers, multi-segment programmers and data loggers is available. These can be fitted with RS232, RS485 or Ethernet communications
  • Over-temperature protection (recommended to protect valuable contents and for unattended operation)  
  • A range of Inconel retorts to work with modified atmospheres up to 1100°C
  • AMS2750E Nadcap compatible models are available for aerospace applications
  • CWF-BAL: 8 kg balance with a resolution of 0.1 g 

The RWF rapid wire chamber furnaces are available in three chamber sizes with maximum operating temperatures of 1100°C or 1200°C. The free radiating wire elements in combination with low thermal mass insulation are designed to provide a rapid thermal response within the chamber.

Key features

  • 1100°C or 1200°C maximum operating temperature
  • Carbolite Gero 301 controller, with single ramp to setpoint and process timer 
  • 5, 13 or 23-liter chamber volumes
  • Ambient to 1000°C in as little as 10 minutes
  • Rapid thermal response from free radiating coiled wire elements 
  • Low thermal mass insulation for fast response and energy efficiency 
  • Soft closing vertical lift door keeps heated surface away from the user
  • Hard-wearing hearth

Options

  • A range of sophisticated digital controllers, multi-segment programmers and data loggers is available. These can be fitted with RS232, RS485 or Ethernet communications
  • Over-temperature protection (recommended to protect valuable contents and for unattended operation)

These top loading chamber furnaces are particularly suited for applications involving tall crucibles and heavy components. Heating elements in all four walls minimize the risk of damage from spills and ensures good temperature uniformity. The smaller two furnaces may be bench mounted, but the best access is provided when these furnaces are located on the floor.

Key features

  • 1200°C maximum operating temperature
  • Carbolite Gero 301 controller with single ramp to setpoint & process timer
  • 5, 10, 23 or 100-liter chamber volume
  • Free radiating wire elements in all 4 sides of the chamber
  • Vented top opening door
  • Angled control panel, protected but clearly visible
  • Thermocouple protected by ceramic sheath

Options

  • A range of sophisticated digital controllers, multisegment programmers and data loggers is available. These can be fitted with RS232, RS485 or Ethernet communications 
  • Over-temperature protection (recommended to protect valuable contents & for unattended operation)

The RHF range of silicon carbide heated high-temperature chamber furnaces comprise four chamber sizes, each available with three maximum operating temperatures of 1400°C, 1500°C and 1600°C. Robust construction and high-quality elements provide rapid heating rates (typically reaching 1400°C in under 40 minutes) and long reliable working life.

Key features

  • 1400°C, 1500°C or 1600°C maximum operating temperature
  • Carbolite Gero 301 PID controller with single ramp to setpoint & process timer
  • 3, 8, 15 or 35-liter chamber volumes
  • Soft closing vertical lift door (3 & 8-liter models only)
  • Silicon carbide heating elements provide long life and are able to withstand the stresses of intermittent operation
  • RHF 3 & 8 liter has a cast alumina hearth RHF 15 & 35 have silicon carbide hearth
  • Low thermal mass insulation for energy efficiency & rapid heating & cooling

Options 

  • A range of sophisticated digital controllers, multi-segment programmers and data loggers is available. These can be fitted with RS232, RS485 or Ethernet communications
  • Over-temperature protection (recommended to protect valuable contents & for unattended operation)
  • Silicon carbide protection tiles

The laboratory HTF high-temperature chamber furnace range comprises 1700°C and 1800°C models. These furnaces may be customized in order to satisfy specific customer requirements, e.g. the addition of catalytic afterburners for ceramic binder burn-off applications.

Key features

  • 1700°C & 1800°C maximum operating temperatures
  • Programmable 3216P1 controller
  • From 4 to 10 liter capacities
  • High-quality molybdenum disilicide heating elements
  • Vertical lift door keeps hot face away from the user
  • Advanced refractory interior, used in combination with energy-efficient low thermal mass insulation
  • Over-temperature protection
  • Fan cooling for low external case temperature

Technical Specifications

ELF

CGH
Model
Max. temp. [°C] Heat-up time [mins] Max. continuous operating temp. [°C] Dimensions: Usable chamber
H x W x D [mm]
Dimensions: External H x W x D [mm] Temperature uniformity of ±5°C within H x W x D [mm] Volume [litres] Max. power [W] Holding power [W] Thermocouple type Weight [kg]
ELF 11/6 1100 28 1000 165 x 180 x 210 580 x 410 x 420 125 x 140 x 140 6 2000 900 K 24
ELF 11/14 1100 43 1000 210 x 220 x 310 630 x 450 x 520 170 x 180 x 205 14 2600 1300 K 31
ELF 11/23 1100 26 1000 235 x 255 x 400 715 x 505 x 690 195 x 215 x 305 23 5000 1550 K 52

CWF, CWF-B and CWF-BAL

CGH
Model
Max. temp. [°C] Heat-up time [mins] Max. continuous operating temp. [°C] Dimensions: Usable chamber
H x W x D [mm]
Dimensions: External H x W x D [mm] Dimensions:
External with door
open H x W x D
[mm]
Temperature uniformity of ±5°C within H x W x D [mm] Volume [litres] Max. power [W] Weight [kg]
Standard Chamber Furnaces
CWF 11/5 1100 47 1000 135 x 140 x 250 585 x 375 x 485 800 x 375 x 485 85 x 90 x 110 5 2400 30
CWF 11/13 1100 90 1000 200 x 200 x 325 655 x 435 x 610 905 x 435 x 610 120 x 120 x 185 13 3100 47
CWF 11/23 1100 36 1000 235 x 245 x 400 705 x 505 x 675 990 x 505 x 675 155 x 165 x 285 23 7000 68
CWF 12/5 1200 51 1100 135 x 140 x 250 585 x 375 x 485 800 x 375 x 485 85 x 90 x 125 5 2400 30
CWF 12/13 1200 80 1100 200 x 200 x 325 655 x 435 x 610 905 x 435 x 610 120 x 120 x 200 13 3100 47
CWF 12/23 1200 45 1100 235 x 245 x 400 705 x 505 x 675 990 x 505 x 675 155 x 165 x 325 23 7000 68
CWF 12/65 1200 40 1100 278 x 388 x 595 885 x 780 x 945 1245 x 780 x 945 178 x 288 x 455 65 14000 165
CWF 13/5 1300 75 1200 135 x 140 x 250 585 x 375 x 485 800 x 375 x 485 85 x 90 x 150 5 2400 30
CWF 13/13 1300 115 1200 200 x 200 x 325 655 x 435 x 610 905 x 435 x 610 120 x 120 x 225 13 3100 47
CWF 13/23 1300 55 1200 235 x 245 x 400 705 x 505 x 675 990 x 505 x 675 155 x 165 x 340 23 7000 68
CWF 13/36 1300 47 1200 250 x 320 x 450 810 x 690 x 780 1105 x 690 x 780 1105 x 690 x 780 36 9000 100
CWF 13/65 1300 45 1200 278 x 388 x 595 885 x 780 x 945 1245 x 780 x 945 178 x 288 x 520 65 14000 165
Burn-off Chamber Furnaces
CWF-B 11/13 1100 103 1000 200 x 200 x 325 655 x 435 x 610 905 x 435 x 610 n/a 13 3100 47
CWF-B 12/13 1200 130 1100 200 x 200 x 325 655 x 435 x 610 905 x 435 x 610 n/a 13 3100 47
Chamber Furnace with Integral Balance
CWF-BAL 11/21 1100 60 1000 215 x 245 x 400 705 x 505 x 675 (400 x 170 x 500) 990 x 505 x 675 n/a 21 7000 80

RWF

CGH
Model
Max. temp. [°C] Heat-up time [mins] Max. continuous operating temp. [°C] Dimensions: Usable chamber
H x W x D [mm]
Dimensions: External H x W x D [mm] Temperature uniformity of ±5°C within H x W x D [mm] Volume [litres] Max. power [W] Holding power [W] Thermocouple type Weight [kg]
RWF 11/5 1100 10 1000 130 x 160 x 250 585 x 375 x 325 800 x 375 x 325 5 2750 680 K 28
RWF 11/13 1100 11 1000 195 x 210 x 325 655 x 435 x 610 905 x 435 x 610 13 5000 1200 K 45
RWF 11/23 1100 13 1000 220 x 260 x 400 705 x 505 x 675 990 x 505 x 675 23 9100 1800 K 65
RWF 12/5 1200 12 1100 130 x 160 x 250 585 x 375 x 485 800 x 375 x 485 5 2750 820 R 28
RWF 12/13 1200 13 1100 195 x 210 x 325 655 x 435 x 610 655 x 435 x 610 13 5000 1450 R 45
RWF 12/23 1200 15 1100 220 x 260 x 400 705 x 505 x 675 990 x 505 x 675 23 9100 2100 R 65

VCF

CGH
Model
Max. temp. [°C] Heat-up time [mins] Max. continuous operating temp. [°C] Dimensions: Usable chamber
H x W x D [mm]
Dimensions: External H x W x D [mm] Temperature uniformity of ±5°C within H x W x D [mm] Volume [litres] Max. power [W] Weight [kg]
VCF 12/5 1200 102 260 x 155 x 130 660 x 530 x 405
(Floor-standing)
5 2500 900 R 50
VCF 12/10 1200 138 365 x 180 x 155 765 x 555 x 430 (Floor-standing) 10 3000 1200 R 60
VCF 12/23 1200 125 450 x 250 x 200 850 x 600 x 500
(Floor-standing)
23 6000 2500 R 130
VCF 12/100 1200 150 600 x 410 x 410 1100 x 930 x 950
(Floor-standing)
100 15000 6000 R 200

RHF

CGH
Model
Max. temp. [°C] Heat-up time [mins] Dimensions: Usable chamber H x W x D [mm] Dimensions: External with door open H x W x D [mm] Volume
[litres]
Holding power
[W]
Max. power [W] Thermocouple type Weight [kg]
RHF 14/3 1400 33 120 x 120 x 205 655 x 435 x 610 (905) (Bench-top) 3 1900 4500 R 42
RHF 14/8 1400 22 170 x 170 x 270 705 x 505 x 675 (990) (Bench-top) 8 3200 8000 R 64
RHF 14/15 1400 35 220 x 220 x 310 810 x 690 x780 (1105)
(Bench-top)
15 2900 10000 R 125
RHF 14/35 1400 38 250 x 300 x 465 885 x 780 x 945 (1245) (Benchtop) 35 6000 16000 R 179
RHF 15/3 1500 45 120 x 120 x 205 655 x 435 x 610 (905) (Bench-top) 3 2000 4500 R 46
RHF 15/8 1500 40 170 x 170 x 270 705 x 505 x 675 (990) (Bench-top) 8 3500 8000 R 61
RHF 15/15 1500 46 220 x 220 x 310 810 x 690 x 780 (1105) (Bench-top) 15 3000 10000 R 125
RHF 15/35 1500 46 250 x 300 x 465 885 x 780 x 945 (1245) (Bench-top) 35 6200 16000 R 178
RHF 16/3 1600 42 120 x 120 x 205 655 x 435 x 610 (905) (Bench-top) 3 2300 4500 R 42
RHF 16/8 1600 35 170 x 170 x 270 705 x 505 x 675 (990) (Bench-top) 8 4000 8000 R 61
RHF 16/15 1600 58 220 x 220 x 310 810 x 690 x 780 (1105) (Bench-top) 15 3500 10000 R 140
RHF 16/35 1600 113 250 x 300 x 465 1530 x 900 x 1020 (1885) (Floor-standing) 35 7000 16000 R 270

HTF

CGH
Model
Max. temp. [°C] Heat-up time [mins] Dimensions: Usable chamber H x W x D [mm] Dimensions: External with door open H x W x D [mm] Volume
[litres]
Max. power [W] Thermocouple type Weight [kg]
HTF 17/5 1700 50 158 x 150 x 225 565 x 830 x 650 (850) (Bench-top) 5 4050 B 109
HTF 17/10 1700 44 232 x 200 x 225 565 x 830 x 650 (850) (Bench-top) 10 5920 B 133
HTF 18/4 1800 65 140 x 140 x 190 565 x 830 x 650 (850) (Bench-top) 4 4650 Pt20%Rh / Pt40%Rh 115
HTF 18/8 1800 56 210 x 190 x 190 565 x 830 x 650 (850) (Bench-top) 8 6200 Pt20%Rh / Pt40%Rh 128

Carbolite Gero - Leading Heat Technology - Ovens and Furnaces Up to 3,000 °C

Carbolite Gero

The Carbolite Gero brand is synonymous with high quality, leading heat technology in the design and manufacture of laboratory and industrial ovens and furnaces ranging from 30 °C to 3000 °C and sold globally to over 100 countries.

Carbolite Gero is an expert in the development of customized equipment for complex heat treatment processes. Solving customers’ individual application requirements has given Carbolite Gero an important place in aerospace, engineering, materials science, medical, bioscience and contract testing laboratories globally to name a few.

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