301
F
FURNACES
Tube, 1200°C, Large Diameter
Model
GHA-
12/300
GHA-
12/450
GHA-
12/600
GHA-
12/750
GHA-
12/900
GHA-
12/1050
GHA-
12/1200
Max. temp. (°C)
1200
1200
1200
1200
1200
1200
1200
Heat-up time (mins)
90
97
92
97
-
83
-
Max. o/d accessory tube (mm)
170
170
170
170
170
170
170
Tube/
Worktube
length(mm)
Heated
For work in air
**For modified atmosphere work
300
500
900
450
650
1050
600
800
1200
750
950
1350
900
1100
1500
1050
1250
1650
1200
1400
1800
External H x W x D (mm)
Furnace body length (mm)
670x526x468
480
670x676x468
630
670x826x468
780
670x976x468
930
670x1126x468
1080
670x1276x468
1230
670x1426x468
1380
*Average Uniform length ±5
°
C
(mm)
201
262
414
448
-
448
-
Max. power (W)
2300
3100
3900
4600
5400
6200
7000
Thermocouple type
N
N
N
N
N
N
N
Weight (kg)
-
37
40
51
55
-
-
Power supply
Single phase
or 2 phase
Single, 3
phase or
Universal
Universal
Universal
Universal
Universal
Universal
GHA Series, Single Zone Horizontal Tube Furnaces,
1200°C
GHA 12/75/600/301
Options:
●
Full range of alternative “blank-base” &
“separate-base” configurations available
●
Non-permeable inner worktubes to contain
modified atmosphere
●
Impervious inner worktubes to protect against
chemical attack or damage from thermal shock
●
Insulation plugs & radiation shields to prevent heat
loss & improve uniformity
●
Gas injection & vacuum compatible tube end seal
assemblies
●
Over-temperature protection (recommended to
protect valuable contents & for unattended
operation)
●
8 or 20 segment programmer
●
RS232 communications & graphical recorders.
A range designed for working using accessory worktubes,
whose physical characteristics and chemical resistance
can be matched to the specific application.
Requires but does not include an appropriate accessory
worktube up to 170mm outer diameter.
“Universal” models are easily altered between single phase (220V), 3 phase-neutral (e.g. 380/220V) and delta (e.g.
220V) electrical supplies.
Continuous operating temperature is 100°C below maximum temperature.
* Average of uniform lengths at 100°C intervals from 800°C to 1200°C, measured with end plugs fitted.
** To ensure tube end temperatures that are compatible with sealing assemblies, worktubes extending beyond the
standard length are required when working with modified atmosphere. Radiation shields may also be required.
GVA 12/600
Vertical Stand
Features:
●
1200°C maximum operating temperature
●
Accepts worktubes with outer diameters from 20 to
170mm
●
Worktubes with 300, 450, 600, 750, 900, 1050 or
1200mm heated tube length
●
Long life, rapid heating,
resistance wire elements
mounted in rigid, vacuum
formed insulation modules
●
301, PID controller with
digital set & display
●
Delayed start / process
timer function as standard
●
Horizontal configuration
●
Furnace mounted directly
on top of controller base
unit.
