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Introduction
Thank you for purchasing one of our products. Please read
instructions on use in this manual as well as the safety rules
given in the attached booklet and follow them carefully to get
the best performance from the plant and be sure that the parts
have the longest service life possible. In the interest of custo-
mers, you are recommended to have maintenance and, where
necessary, repairs carried out by the workshops of our service
organisation, since they have suitable equipment and specially
trained personnel available. All our machinery and systems are
subject to continual development. We must therefore reserve
the right to modify their construction and properties.
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8
Semiautomatic three-phase continuous wire welder with
switch adjustments and incorporated feeder, suitable for use
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with a gas mixture or CO
without gas; suitable for use in medium carpentry and body
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shops, in agriculture and for maintenance.
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The main features of COMPACT welders are:
• Exceptional welding characteristics with all materials as a
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result of inductance levelling;
• Excellent welding performance on thin metal sheets;
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• Provided with standard gas cylinder trolley with sturdy whe-
els to facilitate movement;
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• Free-standing metal structure with front panel in special
shockproof fibre;
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• Tough handle for ease of movement;
• Adequate internal space for conveniently storing metal spo-
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ols (Max 300 mm - Max 20 kg);
• Euro torch connection;
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• 42 V D.C. geared motor with electronic control of wire
speed;
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• 2 roll wire drawing unit;
• A gas solenoid valve;
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• Switch for selecting 2-step and 4-step modes;
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• Potentiometer for the wire speed adjustment;
• Potentiometer for BURN BACK with external adjustment;
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• Potentiometer for motor start-up adjustment;
• Potentiometer with switch for adjusting spot-welding times.
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Technical data
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The technical data for this equipment is summarized in the
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table 1.
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Model
78
Three phase 50/60 Hz
Setting range
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Installation power
80
Fuse
81
Power factor
Open circuit voltage
83-88
Usable current at 100%
89
Usable current at 60%
Usable current at 35%
90
Wire dimensions
Insulation class
91
Degree of protection
Usage limits (IEC 60974-1)
The use of a welder is typically discontinuous, in that it is made
up of effective work periods (welding) and rest periods (for the
positioning of parts, the replacement of wire and underflushing
operations etc). This welding machine is dimensioned to sup-
ply I
max nominal current (250 ampère COMPACT 270, 300
2
ampère COMPACT 310, 350 ampère COMPACT 360), in com-
plete safety, for a work period amounting to (35%) of total
usage time. The regulations in force establish the total usage
time to be 10 minutes. If the permitted work cycle time is exce-
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and with cored wires with and
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270
310
V
230/400
A
25÷250
30÷300
6,1
8,3
16 (230V)
10 (400V)
0,97
V
17÷38
18÷43,5 18,5÷45
A
140
170
A
180
225
A
250
300
mm
0,6-1,2
H
IP 23
mm
860-790-540
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72
Table 1
360
45÷350
11
25 (230V)
16 (400V)
200
260
350
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