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The 400i is one of the Fronius TPS/i series and has been praised by many as a universal genius.
Its design and inner workings have been revolutionised starting from scratch to provide the welding system of the future. All welding features have been massively improved from previous models and the communication between machine and man has been enhanced to a higher level of intelligence. Thanks to the system’s expertly crafted components and integrated design, performance rates are ensured and guaranteed.
Features
Package includes
Fronius - MTG 400i Gascooled MIG Torch - FSC/3,5m/45°/LED
Fronius - HP 70i CON /G /1,2m Connection Hosepack
Fronius - WF25i Wire Feeder 4 Roll System
Fronius - TPS 400i MIG Welder Power Source, with No Welding Package - 400v, 3ph
Fronius - TU Car 4 Pro
Fronius - Ground Cable 70mm² 4m 600A 35% Plug 70mm² Earth Clamp
Fronius - Feeder Roll U 1.2mm
Fronius - Consumable Kit Steel 1.2mm /G/W/5m
Fronius - Wear Part Kit MTW500 ø1,2
Straight answers to the questions people ask most when choosing a three-phase MIG welder for workshop and production use.
Yes, it needs a three-phase connection with the correct cable size and protection for the machine's input current, installed by a competent electrician. The manual states the recommended supply cable and fuse or breaker rating.Do not connect a machine to a circuit that has not been checked for the load. Poor supply causes tripping, overheating and unreliable welding.
Air-cooled torches are simpler and need no extra equipment, and suit many general jobs. Water-cooled torches carry higher current for longer without overheating, so they suit heavy, continuous or production welding, but they need a cooler and a little more upkeep.Choose according to the current and the duty cycle you will use.
Duty cycle is the proportion of a ten-minute period the machine can weld at a given current before it must cool. A higher duty cycle at your working current means fewer interruptions on long welds.If you weld continuously at high current, look at the rating at that current rather than the headline maximum.
A compact machine has the wire feeder built into the power source and is simpler and easier to move. A separate (split) system has an independent wire feeder connected by an interconnecting cable, which you can carry to the work, away from the power source.Separate feeders suit large fabrications and reaching big workpieces, and compact units suit general workshop use.