Series 60 High Temperature Vacuum or Controlled Atmosphere Front Access Furnace

55 Northeastern Blvd,

Nashua, NH 03062

sales@centorr.com

Ph: 603-595-7233

Toll free: 800-962-8631

Fax: 603-595-9220

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Series 60
High Temperature Vacuum or Controlled Atmosphere Front Access Furnace

Brazing
Crystal Growth
Degassing
Diffusion Studies
Dilatometer

Heat Treating
Homogenization
Melting
Quenching
Sintering

Features

Low initial cost
Efficient, inexpensive to use
Uncomplicated design, easy to operate
Clean, compact, vacuum tight construction
Use in vacuum, inert, or reducing atmospheres
Low thermal mass - rapid heating and cooling
Accurate and uniform temperature control

The Centorr Series 60 High Temperature Vacuum or Controlled Atmosphere, Front Access, Cold Wall, Refractory Metal, Laboratory Furnaces are simple and easy to operate.

A furnace system typically consists of the Basic Furnace Chamber Assembly, the High Vacuum System or Evacuation System, the Process Gas System, the Power Supply, the Temperature Control Instrumentation, and the Furnace Mounting Assembly.

These furnaces are available with Heat Zone sizes from 2½" ID x 6" High to 12" ID x 20" High (63.5mm ID x 152.4mm High to 304...8mm ID x 508mm High). Under proper conditions they may be used from 300°C to 3000°C. They will operate from 10^-6 Torr Vacuum to 2 PSI (0.14 Kgs/cm²) in controlled atmosphere.

The unit is ready to operate as soon as power is connected to the main circuit breaker, and water inlet and drain connections are made.

The Furnace is completely assembled and thoroughly tested prior to shipping; a copy of test results will accompany shipment.

Heat Zone Size	Inside Diameter: 2.5" to 12" (63.5mm to 304.8mm)	Height: 6" to 20" (152.4mm to 508mm)
Temperature	2000°C 2500°C 2750°C 3000°C
Pressure Vacuum	2 PSI (0.14 Kgs/cm²) to 10^-6 Torr

Chamber Assembly
The Basic Furnace consists of a double wall all stainless steel (304L), water-jacketed chamber, inside of which is the Heat Zone. The Heat Zone is resistance heated. The Heating Element is made of Tungsten, Tantalum, Molybdenum, or Kanthal. Heating shielding is by concentric layers of metallic radiation shields. Heat zone components are readily accessible for inspection or maintenance. Provision is made for either suspending the work from above or for support by means of a work support hearth.

The entire inside of the furnace chamber is designed to conform to the best High Vacuum Practice. Particular attention is given to the choice of heat zone materials and to surface finishes. Ports are provided for Sighting, Thermocouples, Evacuation, Inert Gas inlet and exit, Gauges, etc. Centorr's proprietary Rotatable Sight Window is included as standard equipment.

Loading is done through the Front Door. Clamps are provided for operation to slightly above ambient pressure.

High Vacuum System
For operation in the 10^-4 to 10^-6 Torr range of vacuum we supply a High Vacuum System. This system includes a High Speed Diffusion Pump, Cold Trap, Mechanical Pump, High Vacuum, Foreline, and Roughing Valves, Vent Valves, High Vacuum Elbow, and Vacuum Instrument. Systems can be fully Automatic, Semi-Automatic, or simply Manual.

Evacuation System
For operation in the 10-50 Microns range of vacuum or for evacuation prior to backfilling with Inert Gas or Nitrogen, we include an Evacuation System. This includes a Mechanical Vacuum Pump, Vacuum Valve, and Manifold. Line Filter ahead of the vacuum pump, and Thermocouple type Vacuum Instrument are optionally available.

Process Gas System
Process Gas System consists of Vacuum tight Gas Inlet Valve and Relief Valve, Bourdon type Pressure-Vacuum Gauge and Manifold.

Power Supply System
Power Supply Systems consist of Silicon Controlled Rectifier Power Controller (Saturable Core Reactors also available) with Current Limit, Stepdown Transformer, Circuit Breaker, Contactor, Control Transformer, Ammeter, Voltmeter, Push Buttons, Indicator Lights, Water Interlocks, all completely wired and packaged in an attractive floor standing cabinet.

Temperature Control Instrumentation
Centorr can supply from the simplest Manual Power Control to the most elaborate instrumentation. This can include Automatic closed loop control utilizing Thermocouples, Power Transducers, or Optical Pyrometers for sensing; and incorporating Indicators-Controllers, Recorders, and Programmers. Various types of Micro-Processor Programmers are now available and extremely popular.

Furnace Mounting Assembly
The Furnace Chamber is generally mounted on a floor stand. It is also possible to lag the stand to the floor. Chamber may also be mounted onto Hydraulic Press Frames, Physical Testing Machines, or inside of Glove Boxes.