Edon welding machine (TB250)

The Edon TB-250 is a popular and very portable DC Inverter MMA (Stick) welding machine. It’s known for being a compact unit often favored for general household, farm, or light industrial repair work.

Here is a breakdown of its key specifications and features:

Edon TB-250 Key Features & Specifications

The model number “250” often refers to the maximum amperage advertised, but the usable output for the TB-250 is typically lower and sufficient for most hobbyist to light-duty applications.

• Welding Process: MMA (Manual Metal Arc) / Stick Welding
  • It uses a consumable rod (electrode) coated in flux to weld. It is not designed for MIG or TIG welding without an external accessory kit (and a dedicated TIG machine is always recommended for TIG).
• Technology: DC Inverter (IGBT)
  • This makes the machine very light and portable compared to older transformer-style welders. It also allows for a more stable and consistent arc.
• Input Voltage: Typically 220V (Single Phase)
• Welding Current Range: The usable range is often 20 to 120 Amps. While some listings show a maximum of 250A, the lower range (up to 120A or 140A) is more common and realistic for its intended use.
• Electrode Size: It is capable of running common electrode sizes, usually between 1.6 mm to 3.2 mm (1/16″ to 1/8″ electrodes). Some heavy-duty versions may handle up to 4.0 mm electrodes.
• Duty Cycle: Around 60% at the rated output.
  • The duty cycle is important: A 60% duty cycle means you can weld continuously for 6 minutes out of every 10-minute period at the specified current before the machine needs a 4-minute rest to cool down.