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Product Features
  •  1400°C, 1500°C or 1600°C maximum operating temperature
  • • Programmable temperature controller with 24 segments
  • • 3, 8, 15 or 35 litre chamber volumes
  • • Soft-closing vertical lift door (3 & 8 litre models only)
  • • Silicon carbide heating elements provide long life and can withstand the stresses of intermittent operation
  • • RHF 3 & 8 litre have a cast alumina hearth; RHF 15 & 35 have silicon carbide hearth
  • • Low thermal mass insulation for energy efficiency & rapid heating & cooling
  • • NEW Ethernet communications
Delivery options

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  • Please visit our shipping and delivery page for more information here.

Carbolite RHF High Temperature Laboratory Furnaces

SKU
CarboliteRHFHighTemperatureLaboratoryFurnaces

Carbolite RHF High Temperature Laboratory Furnaces


    The RHF range of silicon carbide heated high-temperature chamber furnaces comprises 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 a long, reliable working life.

      Designed for high-performance heating, these furnaces are ideal for a wide range of applications, including heat treatment and material testing. Featuring advanced temperature control systems for precise heating, each model in the RHF range ensures uniform heat distribution, exceptional reliability, and energy efficiency. Constructed with robust materials and engineered for safety.

        The RHF furnaces offer an ergonomic design that simplifies operation and maintenance. Whether for research and development or industrial applications, the RHF range is the perfect choice for professionals seeking top-tier thermal processing solutions.

          Carbolite RHF Laboratory Chamber Furnace

            Standard features

            • • 1400°C, 1500°C or 1600°C maximum operating temperature
            • • Programmable temperature controller with 24 segments
            • • 3, 8, 15 or 35 litre chamber volumes
            • • Soft closing vertical lift door (3 & 8 litre models only)
            • • Silicon carbide heating elements provide long life and can withstand the stresses of intermittent operation
            • • RHF 3 & 8 litre have a cast alumina hearth; RHF 15 & 35 have silicon carbide hearth
            • • Low thermal mass insulation for energy efficiency & rapid heating & cooling
            • • NEW Ethernet communications

              • Power Supplies for RHF Furnaces

                  A characteristic of the control systems used with silicon carbide elements results in a power supply which will be larger than expected, e.g., RHF 14/3 at 4500 W =

                • • Single phase / 200 – 240 V / 30 A
                • • 2-phase / 380 – 415 V / 15 A per phase

                  • SIC Protection Tile Option

                      The RHF Chamber Furnace range is available with optional heating element protection tiles. When this option is specified, silicon carbide (SiC) tiles are added to the insulation assembly, positioned on both sides of the chamber to create a barrier between the working chamber and the heating elements. This will protect the heating elements from potentially harmful contaminants that might be placed in the chamber.

                        The addition of the heating element protection tiles option reduces the width of the internal chamber and the maximum operating temperature. The table below shows the amended technical data.

                          Application Examples

                          • • If the process creates small amounts of acid, NOx or water.
                          • • Burn-off processes which create a lot of fumes.
                          • • Melting different kinds of glass which emit aggressive gases.
                          • • This option can also be specified in combination with a gas inlet where the user requires reduced oxygen content in the chamber.
                          • • The protection tiles prevent gases from leaking out of the chamber through the double spiral heating elements.

                            • NOTE: The additional protection tiles reduce the width of the standard chamber and reduce the maximum temperature achievable in the chamber.


                                Options (specified at time of order)

                                • • A range of sophisticated digital controllers, multisegment programmers and data loggers with digital communication options is available
                                • • Over-temperature protection (recommended to protect valuable contents & for unattended operation)
                                • • Silicon carbide protection tiles (see details on the opposite page)

                                Carbolite RHF Laboratory Chamber Furnace

                                  We're happy to help! Please submit via the 'send enquiry' button at the top of the page to place an order, or email [email protected] or call +44 330 088 0595, and a member of the team will get back to you.

Technical Product Specifications

SKU / Model

Series

Model Size

Max Temperature

Capacity

Product Type

Voltage / Electrical Specification

RHF1403-208SN

RHF

14/3

1400°C

3 litre

Chamber Furnace

200–210 V, single-phase + N

RHF1403-230SN

RHF

14/3

1400°C

3 litre

Chamber Furnace

220–240 V, single-phase + N

RHF1403-400TN

RHF

14/3

1400°C

3 litre

Chamber Furnace

380–415 V, three-phase + N

RHF1408-208SN

RHF

14/8

1400°C

8 litre

Chamber Furnace

200–210 V, single-phase + N

RHF1408-230SN

RHF

14/8

1400°C

8 litre

Chamber Furnace

220–240 V, single-phase + N

RHF1408-400TN

RHF

14/8

1400°C

8 litre

Chamber Furnace

380–415 V, three-phase + N

RHF1415-208SN

RHF

14/15

1400°C

15 litre

Chamber Furnace

200–210 V, single-phase + N

RHF1415-208TX

RHF

14/15

1400°C

15 litre

Chamber Furnace

200–210 V, three-phase, N1 + N

RHF1415-230SN

RHF

14/15

1400°C

15 litre

Chamber Furnace

220–240 V, single-phase + N

RHF1415-230TX

RHF

14/15

1400°C

15 litre

Chamber Furnace

220–240 V, three-phase, N1 + N

RHF1415-400TN

RHF

14/15

1400°C

15 litre

Chamber Furnace

380–415 V, three-phase + N

RHF1435-208TX

RHF

14/35

1400°C

35 litre

Chamber Furnace

200–210 V, three-phase, N1 + N

RHF1435-230TX

RHF

14/35

1400°C

35 litre

Chamber Furnace

220–240 V, three-phase, N1 + N

RHF1435-400TN

RHF

14/35

1400°C

35 litre

Chamber Furnace

380–415 V, three-phase + N

RHF1503-208SN

RHF

15/3

1500°C

3 litre

Chamber Furnace

200–210 V, single-phase + N

RHF1503-230SN

RHF

15/3

1500°C

3 litre

Chamber Furnace

220–240 V, single-phase + N

RHF1503-400TN

RHF

15/3

1500°C

3 litre

Chamber Furnace

380–415 V, three-phase + N

RHF1508-208SN

RHF

15/8

1500°C

8 litre

Chamber Furnace

200–210 V, single-phase + N

RHF1508-208TX

RHF

15/8

1500°C

8 litre

Chamber Furnace

200–210 V, three-phase, N1 + N

RHF1508-230SN

RHF

15/8

1500°C

8 litre

Chamber Furnace

220–240 V, single-phase + N

RHF1508-230TX

RHF

15/8

1500°C

8 litre

Chamber Furnace

220–240 V, three-phase, N1 + N

RHF1508-400TN

RHF

15/8

1500°C

8 litre

Chamber Furnace

380–415 V, three-phase + N

RHF1515-208SN

RHF

15/15

1500°C

15 litre

Chamber Furnace

200–210 V, single-phase + N

RHF1515-208TX

RHF

15/15

1500°C

15 litre

Chamber Furnace

200–210 V, three-phase, N1 + N

RHF1515-230SN

RHF

15/15

1500°C

15 litre

Chamber Furnace

220–240 V, single-phase + N

RHF1515-230TX

RHF

15/15

1500°C

15 litre

Chamber Furnace

220–240 V, three-phase, N1 + N

RHF1515-400TN

RHF

15/15

1500°C

15 litre

Chamber Furnace

380–415 V, three-phase + N

RHF1535-208TX

RHF

15/35

1500°C

35 litre

Chamber Furnace

200–210 V, three-phase, N1 + N

RHF1535-230TX

RHF

15/35

1500°C

35 litre

Chamber Furnace

220–240 V, three-phase, N1 + N

RHF1535-400TN

RHF

15/35

1500°C

35 litre

Chamber Furnace

380–415 V, three-phase + N

RHF1603-208SN

RHF

16/3

1600°C

3 litre

Chamber Furnace

200–210 V, single-phase + N

RHF1603-230SN

RHF

16/3

1600°C

3 litre

Chamber Furnace

220–240 V, single-phase + N

RHF1603-400TN

RHF

16/3

1600°C

3 litre

Chamber Furnace

380–415 V, three-phase + N

RHF1608-208SN

RHF

16/8

1600°C

8 litre

Chamber Furnace

200–210 V, single-phase + N

RHF1608-208TX

RHF

16/8

1600°C

8 litre

Chamber Furnace

200–210 V, three-phase, N1 + N

RHF1608-230SN

RHF

16/8

1600°C

8 litre

Chamber Furnace

220–240 V, single-phase + N

RHF1608-230TX

RHF

16/8

1600°C

8 litre

Chamber Furnace

220–240 V, three-phase, N1 + N

RHF1608-400TN

RHF

16/8

1600°C

8 litre

Chamber Furnace

380–415 V, three-phase + N

RHF1615-208SN

RHF

16/15

1600°C

15 litre

Chamber Furnace

200–210 V, single-phase + N

RHF1615-208TX

RHF

16/15

1600°C

15 litre

Chamber Furnace

200–210 V, three-phase, N1 + N

RHF1615-230SN

RHF

16/15

1600°C

15 litre

Chamber Furnace

220–240 V, single-phase + N

RHF1615-230TX

RHF

16/15

1600°C

15 litre

Chamber Furnace

220–240 V, three-phase, N1 + N

RHF1615-400TN

RHF

16/15

1600°C

15 litre

Chamber Furnace

380–415 V, three-phase + N

RHF1635-208TX

RHF

16/35

1600°C

35 litre

Chamber Furnace

200–210 V, three-phase, N1 + N

RHF1635-230TX

RHF

16/35

1600°C

35 litre

Chamber Furnace

220–240 V, three-phase, N1 + N

RHF1635-400TN

RHF

16/35

1600°C

35 litre

Chamber Furnace

380–415 V, three-phase + N

RHF Range - Front-Loading Chamber Furnaces Standard Voltages
-120SN -208SN -208TX -230SN -230TX -400TN
110 -
120 V
single
phase
200 -
210 V
single
phase
200 -
210 V
three
phase
no N
220 -
240 V
single
phase
220 -
240 V
three
phase
no N
380 -
415 V
three
phase
+ N
RHF1403-volts RHF 14/3, 1400°C, 3 litre - o - o - o
RHF1408-volts RHF 14/8 1400°C, 8 litre - o - o - o
RHF1415-volts RHF 14/15 1400°C, 15 litre - - o - o o
RHF1435-volts RHF 14/35 1400°C, 35 litre - - o - o o
RHF1503-volts RHF 15/35 1500°C, 35 litre - o - o o o
RHF1508-volts RHF 15/8 1500°C, 8 litre - - o o o o
RHF1515-volts RHF 15/15 1500°C, 15 litre - - o o o o
RHF1535-volts RHF 15/35 1500°C, 35 litre - - o - o o
RHF1603-volts RHF 16/3 1600°C, 3 litre - o - o - o
RHF1608-volts RHF 16/8 1600°C, 8 litre - - o - o o
RHF1615-volts RHF 16/15 1600°C, 15 litre - - o - o o
RHF1635-volts RHF 16/35 1600°C, 35 litre - - o - o o
More options are available than are listed on these product-specific pages.
- page 117.2 for probe thermocouples, gas safety system, temperature
indicators and iTools software
Key
• = Default
o = Option available
- = Not available

 

Temperature controller options Models
RHF 14/3 RHF 14/8 RHF 14/15 RHF 14/35 RHF 15/3 RHF 15/8 RHF 15/15 RHF 15/35 RHF 16/3 RHF 16/8 RHF 16/15 RHF 16/35
&02-301 301 single-ramp PID controller • • • • • • • • • • •    •
&02-301-3016 Upgrade from 301 to EPC3016P1 1x 24 segment programmer o o o o o o o o o o o   o
&02-301-CT1-1Z Upgrade from 301 to CC-T1 touchscreen temperature programmer for single-zone
products
o o o o o o o o o o o   o
&02-301-3008P10 Upgrade from 301 to EPC3008P10 10x 24 segment programmer o o o o o o o o o o o    o
&02-NanoPR Upgrade to NanoDAC PR o o o o o o o o o o o    o
Built-in features and options - control options
TMP-DIGOT-F Digital over-temperature protection o o o o o o  o  o  o  o  o    o
TMP-&06-CS3 Cascade control: chamber furnaces over 1200°C (requires an appropriate probe
thermocouple & sheath)
o o o o o o o o o o o    o
&08-232 RS232 Communications o o o o o o o o o o o    o
TMP-CALIB-CF11 Single temperature, single position factory calibration of workspace for chamber furnaces,
using equipment traceable to national standards. Please specify temperature (up to
1100°C maximum) and position when ordering.
o o o o o o o o o o o    o
TMP-CALIB-CF15 Single temperature, single position factory calibration of workspace for chamber furnaces,
using equipment traceable to national standards. Please specify temperature (up to
1550°C maximum) and position when ordering. Price includes installation of 12mm ID
thermocouple access port.
o o o o o o o o o o o    o
&08-06-01 Temperature alarm relay connection (please specify alarm temperature) o o o o o o o o o o o    o
&08-06-02 Program segment output o o o o o o o o o o o    o
&08-06-04 Audible alarm with separate cancel button o o o o o o o o o o o    o
&08-06-05 Audible alarm on overtemperature with separate cancel button o o o o o o o o o o o    o
&14-R-132 Built-in digital temperature indicator (132 series) for Type R thermocouples o o o o o o o o o o o    o
&08-TYPE-X Panel-mounted thermocouple socket for connection to spare Nanodac recording
channel (please specify thermocouple type: X = K, N, R, B, 2)
o o o o o o o o o o o    o

Key
•  = Default
o = Option available
- = Not available

Please note:
• Only available with CC-T1 or Nanodac instruments
• Only available for 301 controller, which must also be ordered with the overtemperature protection option
• Not available on 301 instruments
• Can only be ordered with &08-06-01 or &08-06-02
• Uses 2 phases of a 3-phase and neutral power supply
• Nanodac instruments have 3 spare thermocouple input channels, which can be configured to record temperature data from additional thermocouples (cascade control & O2 monitor options each use one channel)

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