Tecno MIG 377PT Pulse LCD Black Series 4x4 is an Ideal synergic inverter MIG welder for a 3 x 400 V supply, built for workshop work and professional use. You use it for MIG/MAG, MMA and TIG Lift welding, and to braze-weld galvanised sheet. Current reaches 350 A, and the machine stands on a wheeled trolley.
Specifications
- Power supply: 3 x 400 V, 50/60 Hz, three-phase, without plug
- Mains protection: C16
- Power: 14.5 kW
- Open-circuit voltage: 76 V
- Welding current range: MIG/MAG 30 to 350 A, MMA 10 to 300 A, TIG 10 to 350 A
- MIG/MAG and TIG duty cycle: 350 A at 60%, 271 A at 100%
- MMA duty cycle: 300 A at 60%, 232 A at 100%
- Steel and stainless wire: 0.8 to 1.2 mm
- Aluminium wire: 1.0 to 1.2 mm
- Brazing wire (CuSi): 0.8 to 1.2 mm
- Self-shielded wire (Flux): 0.8 to 1.2 mm
- MMA electrode: 1.6 to 4.0 mm
- Wire feeder: 4-roll
- Wire spool: D200 (5 kg) or D300 (15 kg)
- Protection rating: IP 23S
- Weight: 54 kg
- Dimensions with trolley (L x W x H): 990 x 500 x 785 mm
Features
15 synergic programs
In MIG/MAG you have fifteen synergic welding modes, including pulse (PULSE) and double pulse (DP). You weld carbon, low-alloy and stainless steel and aluminium, and you braze-weld galvanised sheet. You work with inert gas, active gas or a mixture, and with self-shielded wire without gas, on reverse polarity.
Pulse and double pulse
With MIG pulse the weld comes out better in every position and there is less spatter. In PULSE and DP modes you adjust the base, main, start and end arc length, the base current, the pulse time and the control mode, current or frequency.
LCD display and trigger modes
On the LCD display, in manual mode (MIG MAN) or synergic mode (MIG SYN), you set gas pre-flow and post-flow, wire run-in and burnback, voltage correction, spot welding time, inductance, and current rise and fall. The torch trigger works in SPOT, 2T, 4T with latch for long welds, S2T or S4T mode.
JOB memory
The JOB function saves and loads parameter sets. After you change gas or wire, you do not have to set the machine up from scratch.
MMA and TIG Lift
In TIG Lift you adjust the pulse. In MMA you have HOT START for easier electrode striking, ARC FORCE to stabilise the arc and ANTI STICK, which cuts the voltage when the electrode sticks. VRD lowers the open-circuit voltage to a safe level when you work in damp surroundings.
Design
The machine has fan cooling and overload protection. A 36 V socket powers a gas regulator with heater.
In the box
- MIG 36 welding torch, 3 m (no wire liner fitted)
- Electrode cable and earth cable, 2 m each
- Carbon liner with terminator and steel spiral liner
- Rolls for 0.8 to 1.0 mm and 1.0 to 1.2 mm steel wire
- Rolls for 1.0 to 1.2 mm aluminium wire and extra smooth rolls
12-month warranty for professional use. Warranty service runs door-to-door, with no transport costs on your side.











