Max 403

Brand Name: STEL

Model: Max 403

Origin: Italy


Maximum Reliability

• The Inverter Welding Power Source MAX 403, has been designed for Electrode Welding, Mig and Mig Pulse Welding, Tig Lift. Its principal characteristics are: Robust, portable and reliability, welding of most electrode types including Aluminium, Cellulosic and Arc Force Adjustable, Remote Control, Tig Lift, Slope Down Adjustable, Hot Start Adjustable, VRD.

Slope Down variable (0-10 sec.), Smooth descent for a perfect Craterfill.
Arc Force variable (0-500%) a continuous arc for perfect fusion and penetration, no arc snuffing.
Hot Start variable (0-50%) for a precise arc ignition, eliminating electrode sticking.
Digital Amp/Volt Display
Tig Lift with ramp-down time (0-10sec.)
VRD Safety System
MMA electrode Pulsing (only with Remote Control RCCS)

• Rubust and reliable ideal for site work in the construction industries. Extremely portable and easy to carry owing to the small size and light weight.


  Part No:600243000L


Materials: Welding Process: Environments: Main features
● Mild Steel
● Stainless Steel
● Castings
● Aluminium and alloys
● Electrode Welding
● Cellulosic Electrode Welding
● TIG Lift Start Welding
● Medium-Heavy Fabrications
● Special Maintenance
● Petro-chemical
● Ship-Building
● Installers
● Workshops

● New design with shockproof plastic
● Fireproof Plastic
● Weight and reduced dimensions
● Remote Control
● Arc-Force Variable
● Tig DC Lift Start Welding
● V.R.D.
● Hot Start
● Drive ARC


Technical Data:
Main Voltage 400 V
Phase 3
Frequency 50-60 Hz
Nominal Current (35%) 17 A
Nominal Power (35%) 11,2 KVA
No Load Voltage 70 V
Power Factor 0,85
Current range 4 - 220 A
Welding Current Duty Cycle 45% (25°C) 400 A
Welding Current Duty Cycle 60% (25°C) 370 A
Welding Current Duty Cycle 100% (40°C) 320 A
Welding Current Duty Cycle 35% (40°C) 400 A
Welding Current Duty Cycle 60% (40°C) 350 A
Welding Current Duty Cycle 100% (40°C) 300 A
Mechanical Data:
Earth Cable - Electrode Holder Cable 70 mm²
Degree of Protection IP 23
Insulation Class H
Working Temperature 40°C
Length/Width/Height (mm) 460x250x600
Weight 32 Kg
The date are determinated at an environment temperature of 40°C


Main Accessories:
Trolley KIT MMA
cod. 600364000L
Tig Torch 26V

The practical Trolley allows the move-ment of the Power Source in every condition of soil in safety and ease..


Tig Torch with valve
- Tig Torch 26V 4m Air
- Tig Torch 26V 8m Air
Remote Control with Pulse MODE


Download Brochure

Go to top