Lincoln Electric POWER MIG 256 vs Telwin Bimax 140i Synergic

Technical comparison · MIG/MAG welding (wire feed)

In brief

POWER MIG 256 and Bimax 140i Synergic are not direct competitors: different use classes (F4 vs F2), very different prices (~10.3×). Bimax 140i Synergic costs less (~€315) and is the entry-level choice; POWER MIG 256 offers more capability at a higher price (~€3250). Judge them by budget, not head-to-head.

Parameter
Lincoln Electric POWER MIG 256 POWER MIG 256 Lincoln Electric F4 · Semi-professional
Telwin Bimax 140i Synergic Bimax 140i Synergic Telwin F2 · Intermediate
Identity
Use tier F4 — Semi-professional F2 — Intermediate
Price
Price (€) ~3000–3500 € ~280–350 €
Universal specs
Dimensions (W×D×H) (cm) 48 × 98.6 × 80.8 cm 17.2 × 37.9 × 25.2 cm
Weight (kg) 99.8 kg 6.3 kg
Power (W) 2650 W
Voltage (V) 230 V 230 V
Category specs
Welding type MIG/MAG MIG/MAG
Max wire feed speed (m/min) 17.78 m/min
Max welding current (A) 300 A 140 A
Max wire diameter (mm) 1.2 mm 0.9 mm
Duty cycle (rated current) (%) 40 % 15 %
Synergic control False True
Gasless capable True True
Power source technology Transformer Inverter
Aluminium ready True True
Pulse capable False False
Input voltage 230 V (single-phase) 230 V (single-phase)
Supported spool Ø300 mm (~15 kg) Ø100 mm (~1 kg)
Ecosystem
Cloud dependency No No
Software notes This welder does not rely on any external control software or require cloud connectivity. The interface is based on direct manual controls via potentiometers, complemented by two digital displays that show preset voltage and wire feed speed during setup, as well as actual values during welding. The lack of complex IT management makes it a purely analog product that is straightforward to operate in the field. The machine is governed by a microprocessor control that manages the synergic logic of the welding process. The user simply selects the thickness of the material to be worked, and the system automatically adjusts the wire speed and the optimal arc voltage. This internal software drastically reduces setup times and prevents configuration errors typical of traditional power sources. There are no interfaces for computer connection, external firmware updates, or wireless connectivity, as the entire digital ecosystem is permanently integrated into the internal electronic board. The system is designed to be autonomous, offering an immediate user experience focused on the stability of the electric arc during real-time operation.

The differences that matter

  • Price: POWER MIG 256 3250 € vs Bimax 140i Synergic 315 € — Bimax 140i Synergic wins (+932%)
  • Synergic control: Bimax 140i Synergic yes, POWER MIG 256 no
  • Max wire diameter: POWER MIG 256 1.2 mm vs Bimax 140i Synergic 0.9 mm — POWER MIG 256 wins (+33%)

Which one to choose

Choose POWER MIG 256 if…

you value max wire diameter.

See the POWER MIG 256 sheet →

Choose Bimax 140i Synergic if…

you value price and synergic control.

See the Bimax 140i Synergic sheet →

MakerSpecs is an independent atlas. We don't sell products: this comparison links to both sheets, where you'll find complete data and official links.