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TELWIN SUPERIOR TIG 311 DC 230V/400V: dual voltage power and TIG welding precision for experts.
Meet the TELWIN SUPERIOR TIG 311 DC, an inverter welder that resets the standard for professional TIG welding, with high frequency (HF) or LIFT striking, and for MMA welding with direct current (DC). It was designed for the most demanding specialists and for anyone who values quality without compromise, and it is the essence of Italian engineering and of TELWIN technology.
Picture working with the highest precision whether you stand in a well equipped workshop with a three phase 400V supply or handle a job in the field where only single phase 230V is available. The SUPERIOR TIG 311 DC adapts to the conditions automatically and holds a stable arc with repeatable results on many materials such as carbon steel, stainless steel, titanium, copper, nickel and their alloys. That versatility opens new work for you and removes equipment limits.
Advanced microprocessor control and a rich set of TIG functions, among them pulsed welding (PULS and EASY PULS), adjustment of every key parameter of the welding cycle (bi-level, start and end current, current slope up and slope down times, pre-gas and post-gas times), spot welding and storage of 9 of your own programs, put the whole process under your control. The result is beads of clean appearance, with good strength and little spatter, which cuts the time spent on work after welding.
The SUPERIOR TIG 311 DC is not only advanced TIG welding. It is also a full MMA welder, fitted with Arc Force, Hot Start and Anti-Stick, which make striking and guiding a covered electrode easier and give smooth, even beads. Whether you work on precise stainless steel structures, on pressure pipelines or on demanding repairs, this welder becomes a dependable partner and lifts the efficiency and quality of your work.
Advanced capabilities of the TELWIN SUPERIOR TIG 311 DC 230V/400V
Full control of the TIG DC process, precision in every millimetre
The TELWIN SUPERIOR TIG 311 DC hands the professional a set of tools for shaping the arc and the TIG welding parameters precisely. The key part is microprocessor control, which manages the whole cycle. The PULS TIG function, including the simplified EASY PULS mode, allows welding of very thin material with minimal heat input, which prevents burn through and distortion and gives a neat, stacked bead.
The user can set parameters such as pulse frequency, base and peak current, pulse balance precisely, which matches the arc characteristic to the material and its thickness. The Bi-Level function switches between two levels of welding current during work, which is valuable on parts of changing thickness or where the temperature has to be held in check. Full control of the shielding gas pre-flow and post-flow times (Pre-Gas, Post-Gas) and of the current slope up (Slope-Up) and slope down (Slope-Down) times gives a clean start and a clean end to the bead, without porosity or craters. All of this results in joints of the highest quality that meet strict standards.
Dual supply 230V/400V, mobility and power without compromise
One of the biggest advantages of the SUPERIOR TIG 311 DC is its ability to work on a single phase 230V supply and on a three phase 400V supply alike. The machine detects the connected voltage automatically, so there is no manual setting and no risk of a mistake. That makes it a very versatile tool, well suited to professionals working in varied locations.
In the workshop, connection to a 400V network allows the full output of the machine (up to 300A for TIG) and higher duty cycles, which counts when welding thicker material and running long jobs. Work on a 230V supply (up to 220A for TIG) opens the door to assembly work in the field, repairs at the customer site and places with limited power infrastructure. Whatever the source of supply, advanced TELWIN electronics hold a stable and strong arc and keep beads repeatable and of high quality. It is an investment in independence and in readiness for any job.
Reliability and advanced MMA functions for full versatility
The TELWIN SUPERIOR TIG 311 DC is not only a master of precision in the TIG process, it is also a powerful and dependable tool for welding with a covered electrode (MMA). Fitted with a set of functions that support the MMA process, it makes the work easier and improves the joints. The Arc Force (arc dynamics) function raises the welding current automatically as the arc shortens, which keeps the arc alive and the electrode free, useful above all in out of position work and in places that are hard to reach.
Hot Start (hot striking) briefly raises the welding current at the beginning of the process, which makes the electrode easier to strike, above all with electrode types that start with difficulty or on cold material. The Anti-Stick (short circuit protection) function reduces the welding current automatically when the electrode sticks to the material, which prevents it from overheating and makes it easy to free. These intelligent systems, together with high welding current (up to 250A at 400V), make the SUPERIOR TIG 311 DC a sound choice for a wide field of MMA work, from light structures to more demanding industrial applications, with strong and durable beads.
Intelligent work management: program memory and safety
For a professional, the quality of the bead is not the only thing that counts, efficiency and comfort at work matter as well. The TELWIN SUPERIOR TIG 311 DC meets those expectations with the option to store up to 9 individual welding programs (the JOBs function). The welder can quickly call up optimised settings for jobs that repeat often, which saves time and lowers the risk of errors. That is worth a great deal when working with different materials and thicknesses, where precise tuning of the parameters is decisive.
The machine also carries a set of protections: thermostatic, overvoltage, which guards against voltage surges from a generator, undervoltage and overcurrent. The VRD (Voltage Reduction Device) function lowers the open circuit voltage to a safe level when the machine is not welding in MMA mode, which raises operator safety, above all in damp surroundings or where health and safety rules call for it. These intelligent solutions show how TELWIN treats the reliability of the equipment and the safety of the user, and let you concentrate on doing the work perfectly.
Technical specification
| Parameter | Value |
|---|---|
| Catalogue number | 816037 |
| EAN code | 8004897952369 |
| Supply voltage (automatic detection) | 1ph 230V (50/60Hz) / 3ph 400V (50/60Hz) |
| TIG DC welding current range (230V) | 5 - 220 A |
| TIG DC welding current range (400V) | 5 - 300 A |
| TIG duty cycle (230V, temp. 40°C to EN60974-1) | 220A @ 30% ; 170A @ 60% |
| TIG duty cycle (400V, temp. 40°C to EN60974-1) | 300A @ 35% ; 220A @ 60% |
| Open circuit voltage | 82 V |
| MMA welding current range (230V) | 10 - 180 A |
| MMA welding current range (400V) | 10 - 250 A |
| MMA duty cycle (230V, temp. 40°C to EN60974-1) | 180A @ 30% ; 150A @ 60% |
| MMA duty cycle (400V, temp. 40°C to EN60974-1) | 250A @ 35% ; 200A @ 60% |
| Maximum power draw (230V) | 5.5 kW |
| Maximum power draw (400V) | 8 kW |
| Power draw at 60% (230V) | 3.5 kW |
| Power draw at 60% (400V) | 5 kW |
| Power factor (cosphi) | 0.8 (230V) / 0.9 (400V) |
| Covered MMA electrode diameter | 1.6 - 5.0 mm |
| Mains protection (230V) | 25 A |
| Mains protection (400V) | 16 A |
| Protection class | IP23 |
| Dimensions (L x W x H) | 530 x 240 x 450 mm |
| Weight | 26 kg |
Key features and benefits
- Versatile dual voltage supply (230V/400V): the machine recognises the mains voltage automatically (single phase 230V or three phase 400V), which gives maximum flexibility of work in varied conditions, from the workshop to the field. For a professional that means no equipment limits, the option to take on jobs at any location and confidence in steady operation whatever power infrastructure is available, which translates into greater mobility and more varied services.
- Advanced TIG control panel with pulse: microprocessor control allows precise setting of every key TIG welding parameter, including the PULS and EASY PULS functions, start and end current, current slope up and slope down times, gas flow before and after welding (pre-gas, post-gas), 2-stroke/4-stroke welding and the Bi-Level function. The result is fine control of the weld pool, the ability to weld very thin material (<1mm) with minimal distortion, neat beads with a fine grained structure and reduced heat input, which is decisive when welding stainless steels and special alloys.
- High output and duty cycle: thanks to modern inverter technology and an effective cooling system, the SUPERIOR TIG 311 DC offers a strong duty cycle, for example 300A @ 35% at 400V, which allows long welding runs without the risk of overheating. For the welder that means fewer breaks, higher productivity and demanding jobs finished in less time, which feeds straight into the margin on a project.
- Dependable HF/LIFT arc striking: you can choose between contactless striking with high frequency (HF) and contact striking with Lift-Arc. HF striking suits precise work where a clean start to the bead is critical, since it removes the risk of tungsten contamination. LIFT is preferred in surroundings sensitive to electromagnetic interference. That gives a clean and easy start to the welding process in typical workshop conditions, with higher quality and fewer corrections.
- Full MMA welding functionality: besides TIG, the machine offers good welding properties in the MMA process, supported by Arc Force (dynamic control of the arc current), Hot Start (easier electrode striking) and Anti-Stick (keeps the electrode from sticking). That makes the welder a very universal tool, ready to work with different types of covered electrodes (rutile, basic, cellulosic, stainless, cast iron), and widens its field of use with no need to buy extra equipment.
- Program memory and intelligent functions: storing up to 9 personalised welding programs (JOBs) allows quick recall of the best settings for repeat jobs, which speeds up the work and keeps results consistent. Further functions such as VRD (Voltage Reduction Device), which raises safety in damp surroundings, and the several protections (thermal, overvoltage, undervoltage, overcurrent) guard both the machine and the operator.
Product applications
- Industrial welding of structures in carbon and stainless steel
- Precise workshop and production work (for example metal furniture, machine parts)
- Welding of pipelines and installations in the chemical and food industries (stainless steel, titanium)
- Repair and reconditioning of machine and vehicle parts
- Assembly and service work in the field (thanks to the 230V/400V supply)
- Welding in the construction and shipbuilding sectors
- copper Building and repair of heat exchangers and tanks (copper, nickel and their alloys)
Scope of delivery
- TELWIN SUPERIOR TIG 311 DC 230V/400V welder (816037)
- Earth cable with clamp
- Gas pressure regulator with two gauges (often as an option or in promotional sets)
- Accessories for the TIG torch (for example tungsten electrodes, ceramic nozzles, collets, the contents may vary)
- Operating manual
Summary: TELWIN SUPERIOR TIG 311 DC 230V/400V - your best investment
The TELWIN SUPERIOR TIG 311 DC is more than a welder, it is your partner in the pursuit of welding perfection. Precision in TIG welding, versatility from the dual 230V/400V supply and solid MMA performance make it a sound choice for professionals who accept no compromise. Invest in technology that lifts the quality of your work, raises productivity and stays dependable for years. Choose the TELWIN SUPERIOR TIG 311 DC and see the difference world class equipment makes. Contact us today to learn more and join the circle of satisfied experts.
Catalogue number: 816037
EAN code: 8004897952369
