Air Cooled Vacuum Furnaces
The RD-M Vacuum Furnace
RD-M Vacuum Furnace

RD-M Vacuum Furnace

The RD-M vacuum furnace is designed for brazing and annealing under high vacuum conditions as required for active metal brazing and processing of reactive materials highly sensitive to oxidation. The thermal shield packs are fabricated from multiple layers of molybdenum and stainless steel to provide the cleanest possible operating environment. It comes equipped with a turbomolecular high vacuum pump for the ultimate in purity and cleanliness.

The sophisticated control system of this furnace includes 6 channels of data acquisition which is accessed on the users PC via a RS 232 communications port. Data available includes temperature, vacuum levels, and other process variables for data analysis or quality control, as well as heating element resistance and furnace power consumption for maintenance and diagnostic purposes.

The following image shows a cross-section of the RD-G vacuum furnace.


Representative RD-M Vacuum Furnace Cross-Section

The following figure describes the temperature uniformity in relation to the distance from the center in millimeters.

RD-M Vacuum Furnace Temperature

Temperature Uniformity of Representative RD-M Vacuum Furnace

The following table lists specifications of the RD-M furnace.

RD-M Vacuum Furnace Specifications
Element Description
Maximum temperature 1200°C
Ultimate vacuum with turbo 10-6 mbar
Min. heatup time 1 hr.
Min. cooldown time 1 hr.
Opening temperature 300°C
Work zone 200mm dia X 75mm tall
Insulation Mo/SS
Heating element Mo
Mechanical vacuum pump 3 l/sec two stage
High vacuum pump 240 l/sec turbo pump
High vacuum valve optional
Rough vacuum valve diaphragm
Gas inlet & vent valves manual
Overpressure relief valve + 40 kPa
Flowmeter 20 SCFH
Bourdon Tube Gauge +/- 100kPa
Vacuum Gauge 10-7 mbar to atm
Control & secondary TC's Type C moly sheath
Programmable controller 20 program storage
Communications RS 232
Line voltage 240 v
Frequency 50/60 hz
Furnace power 2 kW
Mech. pump power 500 W
Furnace WxDxH 100kg 850mmX500mmX1100mm
Controls WXDXH 50kg 500mmX400mmX400mm
Mechanical pump 25 kg 150mmX550mmX250mm

Download RD-M PDF Brochure Here

Webb Vacuum Furnaces
6 Huron Drive
Natick, MA 01760
Tel: (401) 267-8802
Fax: (401) 262-4935