Lorch IT 320 GW AC/DC is an industrial TIG power source for alternating and direct current. You set the current from 3 to 320 A, at a 60% duty cycle the machine gives 320 A, and it pulls 250 A without a break. The supply is 400 V in a three phase layout.
What this machine is for
This is a source for industry, for the making of aluminium structures and for workshops that reclaim parts. With alternating current you weld aluminium and its alloys, with direct current mild and stainless steel. The lower 3 A gives control over very thin material and over a small weld, the upper 320 A is enough for fusion runs in thick walled pipes and plates.
The span of the adjustment is what matters most here: one station handles a micro weld on thin sheet and thick aluminium, where a large heat input is needed. A current of 250 A in a 100% duty cycle sets the pace of long work, and 320 A at 60% is left for the thickest joints.
The panel joins analogue settings with a digital readout, so you set the parameters without going down into a deep menu. The balance and the frequency of the alternating current, the current and the slope down are available straight from the main panel. The GW mark points to a version made for work in a gas and water system.
Features and equipment
- Adjustment of the alternating current balance, that is of the split between the half wave that cleans the oxides and the one that fuses.
- Adjustment of the alternating current frequency, with which you narrow the arc and change the depth of penetration.
- Full pulse for thin sheet and for control over the amount of heat.
- An adjustment range from 3 to 320 A, from a small weld to a thick section.
- Settings of the current, the balance and the slope down available straight from the main panel.
- The GW version, made ready for work in a gas and water system.
Technical data
| Brand | Lorch |
|---|---|
| Current type | AC/DC |
| Supply voltage | 400 V, three phases |
| Welding current range | from 3 to 320 A |
| Duty cycle at a temperature of 40 degrees | 320 A at 60%, 250 A at 100% |
| Mains fuse | 25 A |
| Extra functions | AC Balance, AC Frequency, full pulse |
| Cooling | liquid |
| TIG torch | Abicor Binzel Type 26, 4 m |
| Earth cable | 3 m |
What you get
- Abicor Binzel Type 26 TIG torch, 4 m
- earth cable 3 m
- supply cable 400 V
What to watch out for
The supply is 400 V three phase with a mains fuse of 25 A. When working at high current in AC mode the power draw comes close to that value, so check the connection and the cable section before you set up the station. The duty cycle at a temperature of 40 degrees is 320 A at 60% and 250 A at 100%, and it is the lower figure that sets the pace of long work.
The product card gives liquid cooling, and the set holds an Abicor Binzel Type 26 torch, so confirm the configuration before you buy and ask about a cooler and fluid for the circuit. The earth cable is 3 m and the torch 4 m, which sets the working radius around the station. For aluminium prepare electrodes and nozzles for alternating current.
How we sell used machines
This unit was checked in our service workshop in Krotoszyn with measurements to PN-EN 60974-4 and a load test. The price includes the first year of the basic service package: an inspection with cleaning of the machine and a validation measurement. Further years can be added. We ship across the European Union, collection in person by appointment.
