Marshall™
Furnaces
The
Marshall Furnace is a unit for horizontal operation,
which give the operator a furnace with an extremely long
and stable and flat temperature zone for a furnace of
such compact design. Available in six (6) temperature
ranges:
Features
- Uniformity
- Rugged
Design
- Variable
Shunt Taps
- Multi-Zone
Winding
- High
Purity Ceramic Muffles
|
- Versatility
- Convenience
- Wide
Range of Sizes
- Thermocouple
Ports
- Full
Length Temperature Monitoring
|
|
The Marshall
Furnace is available in varying ID and Lengths, click on the
series required in the chart above for a complete chart of
the sizes available.
| SERIES |
MAXIMUM
OPERATING TEMPERATURE |
ELEMENT
TYPE |
| 1000 |
To
1100°C (2000°F) |
Heavy
gage Nickel-Chrome wire wraped around a ceramic tube |
| 1100 |
To
1200°C (2200°F) |
Heavy
gage Iron-Chrome-Aluminum wire wraped around a ceramic
tube |
| 1200 |
To
1300°C (2370°F) |
Exposed
heavy gage Iron-Chrome-Aluminum |
| 1300 |
To
1425°C (2000°F) |
Platinum
(20%) Rhodium wire wraped around a ceramic tube |
| 1400 |
To
1540°C (2800°F) |
Four
(4) strands of Platinum (40%) Rhodium wire wraped around
a ceramic tube |
| 1500 |
To
1700°C (3100°F) |
Six
(6) strands of Platinum (40%) Rhodium wire wraped around
a ceramic tube |
The
spec sheets on the Marshall Furnaces are in a PDF format.
You will need the Adobe Acrobat Reader to view these files.
If you would like to download it, please click
here.
Shunt Tap Operation
The length of
the uniform temperature zone and the temperature variation
allowable. By placing a suitable length of resistance wire
from one shunt tap to another, a parallel circuit is created,
reducing the amount of current through the windings at this
point. The amount of current bypassed will depend on the
amount of resistance wire used.
|
|
Thermcraft,
Incorporated
3950 Overdale Road
PO Box 12037
Winston-Salem, NC 27117
Phone: (336) 784-4800
Fax: (336) 784-0634
Version 3.0, 2000
© Thermcraft, Incorporated
All rights reserved. |
