We are famous design manufacture company of vacuum equipment in China , and unique professional manufacturer which there are three kinds of technology such as vacuum , pressure, and cryogenic.
ZR£7GD Series
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Model ZR-7GD is mainly applied in assembly vacuum brazing of evaporators, condensers, oil-coolers, turbocharger coolers in automobile air-conditions and mechanical engineering. It is distinguished with common furnaces in that: work pieces directly face heater, so they are heated uniformly, and brazed in a short cycle and with high yield. Model ZR-7GD-2 is mainly applied in assembly vacuum brazing of evaporators, condensers, oil-coolers, turbocharger coolers in automobile air-conditions and mechanical engineering. It features as follows: horizontal resistance furnace, 2 sets of work racks equipped, heaters fixed between the 2 racks, and heating of work pieces uniformly to improve product efficiency and yield. Model ZR3-7GD is a 3-chambered continuous vacuum furnace. The 3 chambers include a heating chamber and a 2 symmetrically fixed cooling chambers. The heating chamber keeps heated and vacuum, with improves the heating efficiency, shortens the producing cycle, and raises product yield.
|
Model |
ZR3-210-7GD8 |
ZR3-295-7GD10 |
|
Heating power kVA |
210 |
295 |
|
Max. heating temperature (without load)¡æ |
700 |
700 |
|
Operating temperature ¡æ |
650 |
650 |
|
Hearth capacity kg/cycle |
400 |
500 |
|
Size of isothermal zone mm |
300W¡Á1450H¡Á2600L |
300W¡Á1800H¡Á1600L |
|
Controlled zone |
8 |
10 |
|
Temperature control precision ¡æ |
¡À1 |
¡À1 |
|
Temperature uniformity ¡æ |
¡À3 |
¡À3 |
|
Temperature growth rate (from ambient temperature to 650¡æ ) min |
30 |
30 |
|
Growth rate of vacuum degree (from ambient pressure to1.2¡Á10-2Pa) min |
20 |
20 |
|
Ultimate vacuum degree of cold furnace (without load) Pa |
6.7¡Á10-4 |
6.7¡Á10-4 |
|
Max. vacuum degree of heating chamber (without load) Pa |
2.7¡Á10-3 |
2.7¡Á10-3 |
|
Pressure growth rate Pa/h |
0.4 |
0.4 |
|
Cooling method |
Natural cooling |
Natural cooling |
|
Pressure of cooling rate MPa |
-0.025 |
-0.025 |
|
Regulation of cooling rate |
Controllable |
Controllable |
|
Automatic control available |
Computerized vacuum brazing |
Computerized vacuum brazing |
|
Inert gas consumption |
6N
m3/cycle |
8N
m3/cycle |
|
Gas supply pressure 0.2MPa |
Gas
supply pressure 0.2MPa |
|
|
High
purity dry nitrogen (99.99%) |
High purity dry nitrogen
(99.99%) |
|
|
Cooling water consumption |
14 m3/h, 0.25¡«0.3MPa |
14 m3/h, 0.25¡«0.3MPa |
|
Compressed
air consumption |
0.1m3/min, 0.6¡«0.8MPa |
0.1m3/min, 0.6¡«0.8MPa |
|
Furnace size (L¡ÁW¡ÁH) mm |
8500W¡Á4300H¡Á15000L |
8500W¡Á4500H¡Á10000L |
|
Total power of vacuum furnace kVA |
270 |
350 |
|
Model |
ZR-440-7GD20-2 |
ZR-448-7GD20-2 |
ZR-600-7GD20-2 |
|
Heating power kVA |
440 |
448 |
600 |
|
Max. heating temperature ¡æ |
700 (without load) |
700 (without load) |
700 (without load) |
|
Operating temperature ¡æ |
650 |
650 |
650 |
|
Hearth
capacity
kg/cycle |
500¡Á2 |
500¡Á2 |
600¡Á2 |
|
Size of isothermal zone mm |
£¨300W¡Á1500H¡Á2000L£©¡Á2 |
£¨300W¡Á1300H¡Á2200L£©¡Á2 |
£¨300W¡Á1900H¡Á2200L£©¡Á2 |
|
Temperature uniformity ¡æ |
¡À3 |
¡À3 |
¡À3 |
|
Temperature growth rate (from ambient temperature to 650¡æ ) min |
30 |
30 |
30 |
|
Growth rate of vacuum degree (from ambient pressure to1.2¡Á10-2Pa) min |
15 |
15 |
20 |
|
Ultimate vacuum degree (without load) Pa |
5¡Á10-4 |
5¡Á10-4 |
5¡Á10-4 |
|
Operating vacuum level Pa |
3¡Á10-3 |
3¡Á10-3 |
3¡Á10-3 |
|
Pressure growth rate Pa/h |
0.4 |
0.4 |
0.4 |
|
Cooling method |
Natural cooling/forced cooling
with recirculated inert atmospheres |
Natural cooling/forced cooling
with recirculated inert atmospheres |
Natural cooling/forced cooling
with recirculated inert atmospheres |
|
Pressure of cooling rate MPa |
-0.025 |
-0.025 |
-0.025 |
|
Regulation
of cooling rate |
Controllable |
Controllable |
Controllable |
|
Operating pressure |
10¡«100Pa |
10¡«100Pa |
10¡«100Pa |
|
Automatic
control available |
Computerized
vacuum brazing |
Computerized vacuum brazing |
Computerized vacuum brazing |
|
Inert gas consumption |
8N
m3/cycle |
8
N m3/cycle |
10N m3/cycle |
|
Gas supply pressure 0.2MPa |
Gas
supply pressure 0.2MPa |
Gas
supply pressure 0.2MPa |
|
|
High purity dry nitrogen
(99.99%) |
High purity dry nitrogen
(99.99%) |
High purity dry nitrogen
(99.99%) |
|
|
Cooling water consumption |
16 m3/h, 0.25¡«0.3MPa |
16m3/h, 0.25¡«0.3MPa |
18 m3/h, 0.25¡«0.3MPa |
|
Compressed
air consumption |
0.1m3/min, 0.6¡«0.8MPa |
0.1m3/min, 0.6¡«0.8MPa |
0.1m3/min, 0.6¡«0.8MPa |
|
Furnace size(L¡ÁW¡ÁH) mm |
4500W¡Á3500H¡Á6000L |
7000W¡Á4500H¡Á8000L |
7500W¡Á4500H¡Á8000L |
|
Total power of vacuum furnace kVA |
550 |
550 |
700 |
¡¡
|
Model |
ZR-250-7GD8 |
ZR-250B-7GD8 |
ZR-360-7GD14 |
|
Heating power kVA |
250 |
250 |
360 |
|
Max. heating temperature (without load) ¡æ |
700 |
700 |
700 |
|
Operating temperature ¡æ |
650 |
650 |
600 |
|
Hearth capacity kg/cycle |
400 |
500 |
600 |
|
Size of isothermal zone mm |
300W¡Á1100H¡Á1500L |
300W¡Á1500H¡Á1500L |
300W¡Á1300H¡Á2200L |
|
Controlled zone |
8 |
8 |
14 |
|
Temperature control precision ¡æ |
¡À1 |
¡À1 |
¡À1 |
|
Temperature uniformity ¡æ |
¡À3 |
¡À3 |
¡À3 |
|
Temperature growth rate (from ambient temperature to 650¡æ ) min |
30 |
30 |
30 |
|
Growth rate of vacuum degree (from ambient pressure to1.2¡Á10-2Pa) min |
15 |
15 |
20 |
|
Ultimate vacuum degree (without load) Pa |
5¡Á10-4 |
5¡Á10-4 |
5¡Á10-4 |
|
Operating vacuum level Pa |
3¡Á10-3 |
3¡Á10-3 |
3¡Á10-3 |
|
Pressure growth rate Pa/h |
0.4 |
0.4 |
0.4 |
|
Cooling method |
Natural cooling |
Natural cooling |
Natural cooling |
|
Pressure of cooling rate MPa |
-0.025 |
-0.025 |
-0.025 |
|
Regulation of cooling rate |
Controllable |
Controllable |
Controllable |
|
Automatic control (available) |
Computerized vacuum brazing |
Computerized
vacuum brazing |