The Miller XMT 456 is an inverter welding power source with a current of 600 A at a 30% duty cycle and 450 A at a 100% duty cycle. The supply is 400 V, the cooling is liquid and the interconnection cable is about 10 m long. There are four working modes: TIG, MIG/MAG, MIG/MAG with pulse and gouging.
What this machine is for
The 450 A in continuous work holds long runs on thick steel without breaks, and 600 A gives a reserve for shorter passes. The four modes close on one station welding with a tungsten electrode, welding with wire under gas, pulse welding and gouging, that is cutting out faulty welds and preparing edges.
The interconnection cable of about 10 m moves the wire feeder away from the source, so the source with the gas cylinder stands in place and you work at the structure. This is kit for heavy structures and for a repair workshop in which the process changes during the shift.
Features and equipment
- TIG mode. A tungsten electrode under gas, for clean joints on stainless steel.
- MIG/MAG mode. Wire under gas, for filling joints at a good rate.
- MIG/MAG mode with pulse. Less spatter and less heat in the material.
- Gouging with a carbon electrode under compressed air.
- Interconnection cable of about 10 m. You move the feeder away from the source.
- Liquid cooling for work at high current.
Technical data
| Brand | Miller |
|---|---|
| Type of power source | inverter |
| Processes | TIG, MIG/MAG, MIG/MAG with pulse, gouging |
| Welding current at a 30% duty cycle | 600 A |
| Welding current at a 100% duty cycle | 450 A |
| Supply voltage | 400 V |
| Cooling | liquid |
| Length of the interconnection cable | about 10 m |
What you get
- used Miller XMT 456 power source
- new 4 m MIG torch for 500 A, liquid cooled
- earth cable
- power supply cable
What to watch out for
The product record gives a welding current up to 500 A and the source description 600 A at a 30% duty cycle, so confirm the configuration before you buy. Gouging needs compressed air of the right output, a separate torch and carbon electrodes, and the record does not list them. The 400 V supply needs a three phase socket.
With liquid cooling you keep an eye on the coolant level and the flow through the hoses. The record gives no length for the earth cable and for the power cable, and no weight for the set.
This unit is sold
This machine has already gone to a customer. Similar units are listed below, and if you want the same model, leave your contact details in the form and we will let you know when the next one arrives.