| Customization: | Available |
|---|---|
| Application: | School, Lab |
| Customized: | Customized |
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| Power | 4 KW max. |
| Voltage | Single phase 208 - 240 VAC / 50/60Hz, (25 A breaker installed) |
| Working Temperature | <= 1000 °C continuously Max. 1100 °C, < 30 minutes Temperature Uniformity: +/- 2°C |
| Heating Rate | Max. 20°C/ min Recommended. 10°C/ min |
| Heating Elements | High quality Ni-Cr-Al resistance wire as heating elements and can be heated up to 1200C |
| Quartz Tube Size & Effective Heating Area |
Tube size: 8" O.D. x 7.5" I.D x 13.4" L. Heating area: 7.5" ID x 8.5" Depth (7.6Liter) Uniform Temperature zone: 4"dia x 3.5" depth in center position within +/- 5ºC Quartz tube is replaceable |
| Vacuum Flange |
Stainless steel vacuum flange with dual high temperature silicone O-rings at front door. One needle valve is built into the flange for use as gas inlet. One KF25D port on left side of furnace for connection to vacuum pump. A water cooling jacket has been built inside the flange to protect the vacuum sealing assembly from melting at over 300°C. The inlet and outlet ports located on the left side of furnace are used for connecting to a water chiller through two 12 mm dia. polyurethane tubes (water chiller is sold separately). A Quartz Thermal Block (filled with fibrous alumina) is included to prevent heat radiation and dissipation. It also provides excellent vacuuming while ensuring a clean environment inside the chamber. Optional: If using the furnace for flat samples, a flat sample holder |
| Digital Vacuum Gauge | Mechanical vacuum gauge with range between -0.1 to 0.15 Mpa is included for vacuum pressure measurement. You may order a gas independent vacuum gauge with wide range between 3.8x10-5 to 1125 Torr at picture below KF25 Vacuum Fitting with KF25 Right-Angle Valve for quick connection to KF25 Bellows. Mechanical vacuum gauge Optional gas independent gauge |
| Vacuum Pressure | Vacuum Level is dependent on the vacuum pump used, connected pipe, interior refractory block's materials etc. By using KFD25, stainless steel pipe, two stage mechanical pump and KF25 Ball valve, the furnace can achieve vacuum levels below: 10 mtorr (10-2 torr)via mechanical pump within 30 minutes without Thermal Block 60 mtor(6x10-2 torr ) via mechanical pump within 30 minutes with the Quartz Thermal Block at 900C Optional: Vacuum pump and pipe are not included, please click on BOLD or picture on optional part below to order. For achieving a higher vacuum level, a Turbo-molecular Vacuum Pump Station is necessary. Spare sealing O-ring is available at extra cost |
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