Three-Phase Rectified DC Spot Welder ¡@

SRA04B

High mains power factor & low magnetic impedance, reduce power demand.
Balanced load distribution on the three phases.

The hardened & ground hollow ram is guided by sets of antifriction bearings. The ram combined with coil
spring providing rapid follow-up motion.
Digital format pre-setting & synchronous welding control ensure consistent & precise welding.
Synchronous SCR contactor with protection thermostat.
Water flow switch protection.
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Specifications¡G
Model
Spot and Projection
Projection
SR504B
SR754B
SRA04B
SRB03P
SRC03P
SRD03P

Rated Capacity

KVA
50
75
100
150
220
300

Power Supply

V
220
220
220
220
440
440

Rated Frequency

Hz
50/60
50/60
50/60
50/60
50/60
50/60

Rated Max. Input

KVA
180
235
300
410
600
900

Max. Short Current

A
35000
40000
45000
56000
72000
90000

Duty Cycle

%
6.8
5.0
4.5
6.7
5.5
5.5

Throat
Dimensions

Opening

mm
175
175
175
200
200
200

Depth

mm
400
400
400
300
300
300

Max. Electrode Force

kgf
850
850
850
1200
1500
2000

Electrode Stroke

mm
60
60
60
85
85
85

Electrode Diameter

mm£p
16
16
25
-
-
-

Cooling Water

l /min
20
20
20
30
30
30

Net Weight

kg
1100
1200
1500
1800
2000
2300

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