VIDEO
The Multiprocess 4001C is a powerful 400-Amp welding machine, capable of Stick welding, MIG welding, Flux cored welding, or TIG welding with a lift start. Its robust design and high duty cycle make this an ideal all-around workhorse for all medium to heavy-duty applications.
Features
Specially designed for tough condition.
Heavy-duty, robust design and reliable.
High power at 100% Duty cycle, tested in 104°F/40°C and 140°F/60°C.
Excellent design characteristics ensures welding quality, precise arc striking and highly stable arc.
Fully encapsulated PCB to avoid dust contamination.
Automatic compensation for main power fluctuations within ± 20%.
Electronic continuous control of inductance.
Excellent CC/CV characteristic ensures high quality and trouble-free welding.
Exceptional welding characteristics in MIG/MAG, Flux-cored, and Stick welding (MMA).
User friendly parameters settings.
Initial and final crater control.
Comprehensive 3 Year Warranty.
4001C Specs
Process
MIG
Stick Electrode
TIG
Input Voltage Range (Three Phase, 50/60 Hz)
400 V±15%
Parameters In 400 V±15% :
Primary Current@Max Welding Current
26.5 A
28 A
21.5 A
Maximum Primary Effective Current (I1 eff max)
24.5 A
26 A
20 A
Welding Current Range
30 – 400 A
20 – 400 A
20 – 400 A
Duty Cycle @ Maximum Welding Current in 104° F (40° C)
60% (400 A)
60% (400 A)
60% (400 A)
Welding Current @ 100% Duty Cycle in 104° F (40° C)
380 A @ 100%
380 A @ 100%
380 A @ 100%
Welding Current @ 60% Duty Cycle in 104° F (40° C)
400 A @ 60%
400 A @ 60%
400 A @ 60%
Open Circuit Voltage : Volt
72 V DC
72V DC (27V VRD)
72V DC (27V VRD)
Output Voltage Range
15.5 – 34 V
20.8 – 36 V
10.8 – 26 V
Weight : lb. (Kg)
148 lb. (67 Kg)
Dimensions Including Handle (D, W, H) : inch (mm)
33.8 x 12.2 x 32 inch (860 x 310 x 815 mm)
Input Voltage Range (Three Phase, 50/60 Hz)* (Three Phase 230 /400/ 440 V as option)
4001VC Specs
Process
MIG
Stick Electrode
TIG
Input Voltage Range (Three Phase, 50/60 Hz)
(440/460/480 V) ±10%
Parameters In 460 V ±10% :
Primary Current@Max Welding Current
24 A
23 A
18 A
Maximum Primary Effective Current (I1 eff max)
22 A
23 A
18 A
Welding Current Range
30 – 400 A
20 – 360 A
20 – 360 A
Duty Cycle @ Maximum Welding Current in 104° F (40° C)
60% (400 A)
100% (360 A)
100% (360 A)
Welding Current @ 100% Duty Cycle in 104° F (40° C)
360 A @ 100%
360 A@ 100%
360 A@ 100%
Welding Current @ 60% Duty Cycle in 104° F (40° C)
400 A @ 60%
–
–
Open Circuit Voltage : Volt
78V DC
78V DC (27V VRD)
78V DC (27V VRD)
Output Voltage Range
15.5 – 34 V
20.8 – 34.4 V
10.8 – 24.4 V
Weight : lb. (Kg)
152 lb. (69 Kg)
Dimensions Including Handle (D, W, H) : inch (mm)
33.8 x 12.2 x 32 inch (860 x 310 x 815 mm)
Input Voltage Range (Three Phase, 50/60 Hz)* (Three Phase 230 /400/ 440 V as option)
4001VC-575V Specs
Process
MIG
Stick Electrode
TIG
Input Voltage Range (Three Phase, 50/60 Hz)
(575 V) ±10%
Parameters In 575 V ±10% :
Primary Current@Max Welding Current
23.5 A
21 A
17 A
Maximum Primary Effective Current (I1 eff max)
20.5 A
21 A
17 A
Welding Current Range
30 – 400 A
20 – 360 A
20 – 360 A
Duty Cycle @ Maximum Welding Current in 104° F (40° C)
60% (400 A)
100% (360 A)
100% (360 A)
Welding Current @ 100% Duty Cycle in 104° F (40° C)
360 A @ 100%
360 A@ 100%
360 A@ 100%
Welding Current @ 60% Duty Cycle in 104° F (40° C)
400 A @ 60%
–
–
Open Circuit Voltage : Volt
78V DC
78V DC (27V VRD)
78V DC (27V VRD)
Output Voltage Range
15.5 – 34 V
20.8 – 34.4 V
10.8 – 24.4 V
Weight : lb. (Kg)
156 lb. (71 Kg)
Dimensions Including Handle (D, W, H) : inch (mm)
33.8 x 12.2 x 32 inch (860 x 310 x 815 mm)
Input Voltage Range (Three Phase, 50/60 Hz)* (Three Phase 230 /400/ 440 V as option)
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