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TELWIN TECHNOLOGY TIG 202 AC/DC 230V: Precision Welding of Aluminium and Steel
Every millimetre of a weld bead sets its own demands, and this machine is built to meet them. The TELWIN TECHNOLOGY TIG 202 AC/DC 230V is a tool for welders who aim at precise work, designed by Italian engineers with a taste for new solutions. It was made for professionals who accept no compromise and for demanding hobbyists who value quality, and this inverter welder opens the door to a broad set of jobs.
Difficult materials lose much of their difficulty here. Thanks to advanced AC current control, the TECHNOLOGY TIG 202 AC/DC handles aluminium and its alloys with ease and gives clean, penetrating, good looking welds. Switch over to DC current to join stainless steel, carbon steel, copper or titanium with high accuracy. Whether you work on complex structures, on details in the automotive trade, or on artistic pieces, this welder gives you the power and the control you need.
At the heart of the machine sits an advanced microprocessor that watches and optimises the arc parameters, keeping the arc stable and smooth. Functions such as TIG Pulse, AC balance and frequency adjustment and non-contact HF arc striking are not technical curiosities, they are real help that speeds up the work, cuts the number of corrections and gives welds of high, repeatable quality. MMA welding with Arc Force, Hot Start and Anti-Stick makes the TECHNOLOGY TIG 202 AC/DC a genuinely universal welding station in your workshop.
Investing in the TELWIN TECHNOLOGY TIG 202 AC/DC means investing in reliability, precision and technology that lets you push past your current limits and take on more ambitious projects. It is a machine that meets your expectations and goes beyond them, becoming a key part of your professional work.
Advanced Features of the TELWIN TECHNOLOGY TIG 202 AC/DC 230V
Clean Welds on Aluminium: AC Current Optimisation
TIG welding of aluminium calls for precise control of alternating current (AC), and the TELWIN TECHNOLOGY TIG 202 AC/DC is strong in this area. The key role is played by AC balance adjustment, that is the ratio between the positive and the negative half wave of the current. Setting a larger share of the negative half wave (electrode negative) gives deeper penetration and a narrower bead, while a larger share of the positive half wave (electrode positive) increases the cathodic cleaning effect and removes stubborn aluminium oxides from the surface of the pool. The welder can match the settings to the thickness of the material and to how dirty it is, and get welds free of porosity and inclusions.
Another asset is AC frequency adjustment across a broad band (for example 20-250 Hz). A higher frequency gives a narrower, more concentrated and more stable arc, which suits precise welding of thin aluminium sheet and fillet welds. It allows faster welding and better control of the pool. Lower frequencies produce a wider arc with a softer character, which can help on thicker material or where heat needs to be spread out more. Together these adjustments let a professional produce welds of radiographic quality while keeping distortion and overheating of the material low.
TIG Pulse: Full Control of the Pool and the Weld Structure
The pulsed TIG function in the TECHNOLOGY TIG 202 AC/DC is more than an option, it is an advanced tool for shaping metal with high precision. Pulsing means switching the welding current cyclically between a peak value and a base value. This allows precise dosing of heat energy, which is invaluable when joining thin materials, where the risk of burning through is high, and when welding stainless steel, where heat control decides how well corrosion resistance is kept.
With adjustable pulse parameters, such as pulse frequency, pulse width (the duration of the peak current) and the value of the base current, the welder gains full control over the process. The result is better bead formation, the option of a neat, regular stacked appearance, deeper penetration at lower linear heat input and lower thermal distortion of the welded material. This model also offers the EASY PULSE mode, which optimises the pulse parameters automatically, a real help for less experienced operators who want professional results quickly. The BI-LEVEL function allows fast switching between two programmed welding current levels using a button on the torch, which suits welding of material of varying thickness or making tack welds and main welds without stopping.
Easy Operation and Smart Functions for the Professional
Despite the advanced technology and the long list of functions, the TELWIN TECHNOLOGY TIG 202 AC/DC was designed around the comfort and efficiency of the welder. The centre of it is a clear control panel with a digital display that shows all the key parameters plainly. Ergonomic knobs and buttons give precise, fast adjustment even in welding gloves. The logical layout makes moving through the menu and setting the machine up straightforward, which shortens the time needed to prepare for work.
The machine also offers a number of smart solutions, such as memory of the last settings or the option of storing your own welding programs (whether the model supports this is worth checking, for this model it is not standard, so it is left out). Even without that, functions such as THINSPOT (for fast, precise tacking) and the advanced welding cycle settings (Pre Gas, Post Gas, Slope Up, Slope Down, start and end current) allow the process to be matched fully to the demands of each job. For a professional this means saved time as well as repeatability and high weld quality, whatever the complexity of the project. Microprocessor control keeps the parameters stable and the operation dependable, which is the base of professional work.
Technical Specification
| Parameter | Value |
|---|---|
| Full name | TELWIN TECHNOLOGY TIG 202 AC/DC 230V |
| Catalogue number | 816255 |
| EAN code | 8056590377819 |
| Supply voltage | 230V - 1ph (50/60Hz) |
| Mains protection | 16 A |
| Rated power 60% / maximum | 3 kW / 4.6 kW |
| Open circuit voltage | 94 V (DC) |
| TIG AC welding current adjustment range | 10 - 200 A |
| TIG DC welding current adjustment range | 10 - 200 A |
| TIG duty cycle (at 40°C, to EN60974-1) | 200A @ 24%; 100A @ 60% |
| MMA welding current adjustment range | 10 - 160 A |
| MMA duty cycle (at 40°C, to EN60974-1) | 160A @ 27%; 85A @ 60% |
| TIG tungsten electrode diameter | 1.0 - 3.2 mm |
| MMA covered electrode diameter | 1.6 - 4.0 mm |
| AC current adjustment | Balance (20-60%), Frequency (20-250 Hz) |
| TIG functions | 2T/4T, TIG Pulse (Normal, Easy, Bi-Level), HF/LIFT striking, Start and end current adjustment, Current slope up and slope down time, Gas post-flow time (Post-gas), Gas pre-flow time (Pre-gas) |
| MMA functions | Arc Force, Hot Start, Anti-Stick |
| Protection class | IP23 |
| Insulation class | H |
| Dimensions (L x W x H) | 430 x 170 x 340 mm |
| Machine weight | 12.5 kg |
| Weight with accessories | 16.7 kg |
Key Features and Benefits
- Versatile TIG AC/DC Welding with Advanced Adjustment: This welder works with alternating current (AC), ideal for welding aluminium, magnesium and their alloys, and with direct current (DC) for stainless and carbon steel, copper, nickel or titanium. The key advantage is full control over the AC parameters, such as AC balance (which affects penetration and oxide cleaning) and AC frequency (which decides arc focus and welding speed). For a professional this means being able to match the arc character precisely to each task, to keep weld defects down and to get a good bead appearance with deep fusion even on demanding materials, which raises quality and reduces scrap.
- Advanced TIG Pulse Mode (including EASY PULSE and BI-LEVEL): Pulsed TIG welding gives precise control over how much heat goes into the joint, which is invaluable on thin materials, where it prevents burn-through and deformation, and in positional welding. The welder offers several pulse modes, including EASY PULSE, which sets the pulse parameters automatically, and BI-LEVEL, which switches between two current levels. The benefit for the welder is fine control of the weld pool, neat beads with a fine grained structure, better root formation and much less distortion of the material, which shortens the finishing work.
- Dependable HF and LIFT ARC Striking: The machine has two TIG arc striking systems: non-contact high frequency (HF), which removes the risk of contaminating the weld and the tungsten electrode, and contact LIFT ARC, suited to places sensitive to electromagnetic interference. For the welder this means an easy, quick start in normal workshop conditions, a clean weld from the first moment and protection of the electrode, which extends its life and lowers running costs.
- Full Support Functions for MMA Welding: Beyond its TIG capability, the TECHNOLOGY TIG 202 AC/DC gives complete support for welding with covered electrodes (MMA). Functions such as Arc Force (dynamic short circuit current control that stops the electrode sticking and keeps the arc stable), Hot Start (a short current boost at the start of the weld that makes striking easier) and Anti-Stick (current reduction when the electrode sticks, so it can be freed easily) make the work noticeably easier. The professional gains a versatile tool ready for MMA welding in varied conditions, even with difficult electrodes, which widens the scope of work possible without a second machine.
- Microprocessor Control and a Clear Panel: At the heart of the machine is a modern microprocessor that manages all the welding parameters, keeping them under precise control and repeatable. A legible control panel with a digital display and logically placed knobs and buttons allows quick, easy setup even of the advanced functions. For the user that means less time spent setting parameters, easy adaptation of the welder to a given task and confidence that the chosen settings are carried out exactly, which raises efficiency and lowers the risk of mistakes.
Product Applications
- Welding of precise aluminium structures (frames, sections, tanks)
- Repairs and modifications in the automotive sector (body parts, stainless steel exhaust systems, oil pans)
- Maintenance and production work in light industry and crafts (parts in stainless steel, copper, titanium)
- Production and repair of pipelines and installations in acid resistant steel (food, chemical and pharmaceutical industry)
- Joining thin stainless and carbon steel sheet where distortion has to be kept minimal
- Maintenance and repair work in metalworking and mechanical workshops
- Making artistic metal structures and architectural details
Set Contents
- TELWIN TECHNOLOGY TIG 202 AC/DC 230V welder (816255)
- ST26 TIG welding torch, 4 metres (Telwin code 742614)
- Earth cable, 3 metres, with a clamp (DX25)
- Pressure regulator for Ar/CO2 cylinders with two gauges (Telwin code 722119)
- Set of consumables for the TIG torch (ceramic nozzles, collets, current connector, cap)
- Gas hose to connect the regulator to the machine
Summary: TELWIN TECHNOLOGY TIG 202 AC/DC 230V, Your Best Investment
The TELWIN TECHNOLOGY TIG 202 AC/DC 230V is more than a welder, it is your way into precise welding without compromise. Whether you work with demanding aluminium, with delicate stainless steel, or need a dependable tool for everyday MMA jobs, this model gives you control, versatility and weld quality. Invest in technology that lifts your skills and stays reliable for years. Choose proven Italian quality and join the professionals who trust the TELWIN brand. Take the step forward in your welding career today.
Catalogue number: 816255
EAN code: 8056590377819
