P3 UHP compact orbital TIG welding power source 125 A for ultra-high-purity piping

Technical specifications

Specifications are taken from the manufacturer’s technical documentation. Updated 11/06/2026.

Description

The source works with all closed heads without filler, including UHP 500 and UHP 625, and recognizes the connected head by itself. Torch rotation is regulated in a closed loop, and the current is programmed in 0.1 A steps. Water cooling is undesirable in clean rooms, so both the source and the heads are air-cooled, and closed water cooling with a safety valve is added only for heads with a high duty cycle. The flow of shielding gas and purge gas is set with mass flow meters with indication on the display. Programming is done from a wireless touch controller over LAN/WLAN through Plug & Play software or from a Windows PC, and there is synergic auto-programming, a WPS library, a printer, a USB drive and OPC UA (Industry 4.0). Arc voltage, current, electrode angular position and welding speed are recorded. There are three axes, and the dimensions are 575×224×455 mm.

How to choose

The supply is single-phase 115/230 V ±10 % with automatic switching, and operation from field generators is permitted. The current is 3–125 A at 230 V and 3–95 A at 115 V, with a 0.1 A step in the 3–50 A range. The duty cycle is 140 A/25 % and 95 A/100 % at 230 V, and 100 A/40 % and 75 A/100 % at 115 V. Accuracy is ±1 A up to 100 A and ±1 % above 100 A, and the open-circuit voltage is below 113 V. The head is selected by diameter: UHP 250-2 welds tubes of 1.60–6.35 mm, UHP 500-3 3.0–12.7 mm, UHP 625 3–17.3 mm. Accessories are a barcode scanner, a pendant, an external cooling unit, a switch for two heads, a DAQbox and an oxygen indicator.