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The SPARTUS ProTIG 321P DC is a modern inverter welder based on IGBT technology and pulse width modulation (PWM). This high-class power source, delivering up to 320A and powered by a three-phase 400V supply, has been designed for intensive production and industrial applications.

The machine supports the TIG DC process, providing precise control over welding. The operator can adjust key parameters such as:
• upslope and downslope time,
• start and end current,
• pre-gas and post-gas,
• 2T/4T modes and SPOT mode.
The TIG Pulse function allows adjustment of pulse current, base current, frequency (0.5–999Hz), and pulse width (5–95%). This makes the welder an excellent choice for welding very thin sheets, ensuring high quality and aesthetic welds.
The SPARTUS ProTIG 321P DC also enables covered electrode welding in MMA DC mode. The operator has access to supportive functions: Arc Force (0–10) and Hot Start (0–10), which improve arc stability and facilitate electrode ignition.


The SPARTUS ProTIG 321P DC is equipped with an advanced memory system that allows saving up to 10 different welding configurations. This function enables welders to quickly and easily switch between various settings, perfectly adapted to the specifics of working with different materials and in diverse environments. As a result, users can significantly speed up their workflow, eliminating the need for constant manual parameter adjustments. The ability to store favorite settings makes the SPARTUS ProTIG 321P DC not only efficient but also highly intuitive to operate, making it an ideal tool for professionals seeking efficiency and precision in welding.

Operation is carried out via a modern function panel with an LCD display. All parameters are smoothly and steplessly adjustable, allowing full control over the process. Additionally, the machine is compatible with both wired and wireless remote controls, including a foot pedal, which enhances user comfort.
| Control options | UP&DOWN torch control | Torch control – potentiometer | Wired foot control | Wireless foot control | Wireless remote control |
| ProTIG 321P DC | ✅ | ✅ | ✅ SP-FC | ✅ SP-FC2 | ✅ SP-PILOT3 |


The SPARTUS ProTIG 321P DC is available both as a standalone power source and in various configurations tailored to the user’s needs.
The suggested package includes:
• ProTIG 321P DC
• TIG torch SPARTUS SPP 26 4B X 4m
• TIG toolbox (consumable kit)
• 3 m electrode holder
• 3 m work clamp
• gas hose
• user’s manual
Thanks to a flexible and innovative customer-oriented approach, SPARTUS Pro machines can also be configured with different torches and expanded with additional accessories, creating a set perfectly suited to the specifics of the job.
The SPARTUS ProTIG 321P DC is a professional TIG DC welder with pulse, designed for demanding industrial applications. The combination of advanced functions, robust construction, and intuitive control makes this machine meet the expectations of even the most demanding welders.
The maximum number of products to compare is 4.
You can only compare products from the same category.
Would you like to remove all products from the comparison tool and add this one instead?