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.
Standard features
- 1100°C, 1200°C or 1300°C maximum operating temperature
- 5, 13, 23, 36 or 65 litre chamber volumes
- Programmable EPC3016P1 controller
- Vertical lift door keeps heated surface away from the user
- Soft closing door on 5, 13 & 23 litre models protects the thermal insulation
- Hard wearing alumina element carrier, furnace entrance and hearth
- Energy efficient low thermal mass insulation
- Free radiating wire wound elements for optimum uniformity
- Easy access to elements & controls simplifies maintenance & servicing
Options (specify these at time of order)
- A range of sophisticated digital controllers, multisegment programmers and data loggers with digital communication options is available - more information about controllers
- Over-temperature protection (recommended to protect valuable contents & for unattended operation)
- A range of metallic retorts to work with modified atmospheres up to 1100°C
- Bespoke specifications are available for AMS2750H (Nadcap) compliant applications
Laboratory Chamber Furnace - CWF ATMOSPHERE RETORTS FOR CWF FURNACES
A retort can be used for various heat treating processes requiring a controlled inert or reactive atmosphere, e. g. to prevent oxidisation or to enhance surface hardness. The A105 retort, which incorporates a silicone rubber seal, can achieve low oxygen levels. Manufactured in either NiCr alloy (Inconel) with a maximum operating temperature of 1100 °C or 314 grade stainless steel with a maximum operating temperature of 1050 °C.
The A105 retort is sealed by a removable front opening insulated door fitted with a silicone rubber seal. Gas inlet and outlet connections are easily accessible at the front. Oxygen levels down to 30 ppm are achievable. A105 retorts for CWF furnaces are fitted with a 3 mm thermocouple gland through the centre of the door. The retort and furnace must be ordered together as the furnace is modified to allow it to be used with, and without, the retort. The A105 retort can be used in combination with the laboratory gas safety system for safe use with hydrogen.
A105 internal dimensions
| CG H Model | Height h/H [mm] |
Width W h/H [mm] |
Depth [mm] |
Door type | ||||
| CWF_/13 | 135/150 | 150 | 275 | pull out | ||||
| CWF_/23 | 170/185 | 195 | 350 | pull out | ||||
| CWF 12/36 | 180/200 | 270 | 400 | pull out | ||||
| CWF 12/65 | 200/225 | 335 | 540 | pull out | ||||
Laboratory Chamber Furnace - CWF Examples
CWF 13/65 with nanodac temperature controller
CWF 13/36 with AriesPlus temperature controller
Laboratory Chamber Furnace - CWF Technical Data
| Max temp (°C) | Heat-up time (mins) | Max continuous operating temp (°C) | Dimensions: Internal 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) | Holding power (W) | Thermocouple type | Weight (kg) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CWF 11/5 | 1100 | 47 | 1000 | 135 x 140 x 250 | 595 x 375 x 495 | 810 x 375 x 540 | 85 x 90 x 110 | 5 | 2400 | 790 | R | 30 |
| CWF 11/13 | 1100 | 76 | 1000 | 200 x 200 x 325 | 670 x 435 x 608 | 915 x 435 x 675 | 120 x 120 x 185 | 13 | 3100 | 1500 | R | 47 |
| CWF 11/23 | 1100 | 36 | 1000 | 235 x 245 x 400 | 715 x 505 x 680 | 1000 x 505 x 765 | 155 x 165 x 285 | 23 | 7000 | 1900 | R | 68 |
| CWF 12/5 | 1200 | 51 | 1100 | 135 x 140 x 250 | 595 x 375 x 495 | 810 x 375 x 540 | 85 x 90 x 125 | 5 | 2400 | 850 | R | 30 |
| CWF 12/13 | 1200 | 88 | 1100 | 200 x 200 x 325 | 670 x 435 x 608 | 915 x 435 x 675 | 120 x 120 x 200 | 13 | 3100 | 1550 | R | 47 |
| CWF 12/23 | 1200 | 45 | 1100 | 235 x 245 x 400 | 715 x 505 x 680 | 1000 x 505 x 765 | 155 x 165 x 325 | 23 | 7000 | 2250 | R | 68 |
| CWF 12/36 | 1200 | 37 | 1100 | 250 x 320 x 450 | 810 x 690 x 780 | 1105 x 690 x 780 | 170 x 240 x 357 | 36 | 9000 | -- | R | 100 |
| 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 | -- | R | 165 |
| CWF 13/5 | 1300 | 75 | 1200 | 135 x 140 x 250 | 595 x 375 x 495 | 810 x 375 x 540 | 85 x 90 x 150 | 5 | 2400 | 1000 | R | 30 |
| CWF 13/13 | 1300 | 121 | 1200 | 200 x 200 x 325 | 670 x 435 x 608 | 915 x 435 x 675 | 120 x 120 x 225 | 13 | 3100 | 1800 | R | 47 |
| CWF 13/23 | 1300 | 55 | 1200 | 235 x 245 x 400 | 715 x 505 x 680 | 1000 x 505 x 765 | 155 x 165 x 340 | 23 | 7000 | 2500 | R | 68 |
| CWF 13/36 | 1300 | 47 | 1200 | 250 x 320 x 450 | 810 x 690 x 780 | 1105 x 690 x 780 | 170 x 240 x 400 | 36 | 9000 | -- | R | 100 |
| CWF 13/65 | 1300 | 55 | 1200 | 278 x 388 x 595 | 885 x 780 x 945 | 1245 x 780 x 945 | 178 x 288 x 255 | 65 | 14000 | -- | R | 165 |
Laboratory Chamber Furnace - CWF Downloads
Cement Testing for Compliance
The compliance of cement with standards such as EN 197 / ASTM C 150 is a quality requirement. Quality assurance of the raw materials used in calcination and also during the clinker production is necessary. Carbolite Gero offers different furnaces that help to guarantee quality requirements are met during the production cycle.
Heat Treating 3D Additive Manufactured Parts
At present, there are two main techniques used in the additive manufacturing of 3D metal parts, Electron Beam Manufacturing (EBM) and Direct Metal Laser Sintering (DMLS). These take time but are outstanding for creating complex or ‘impossible’ parts which cannot be created using traditional casting or machining methodologies. This has already resulted in the creation of a multitude of prototype pieces as well as countless ‘impossible parts’ for the aerospace, automotive, tooling and medical sectors.