@60% Duty
@100% Duty
Metal Body
High-frequency switching delivers stable arc, 85%+ efficiency, and less heat than transformer machines.
Works reliably on DG sets and generator-supplied sites — critical for Indian construction projects.
E6013, E7018, E308L/316L, and carbon steel rods — handles everything from sheet repairs to 25mm plate.
| Input Specifications | |
|---|---|
| Input Voltage | 330–500 VAC, 3-Phase, 50/60Hz |
| Primary Switching Device | IGBT Module |
| Input KVA @ 400A | 17.8 KVA |
| Input Cable | 4 core 2.5 sq.mm, 4.0 m |
| Switching Frequency | 30 KHz |
| Technology | Full Bridge Inverter |
| Output Specifications | |
| Output Current Range | 10A – 400A |
| Output @ 60% Duty Cycle | 400 Amps |
| Output @ 100% Duty Cycle | 300 Amps |
| Max Open Circuit Voltage | 85 VDC |
| Welding Process | TIG (GTAW) + Stick (SMAW) |
| Mechanical Specifications | |
| Dimensions (L×W×H) | 540 × 310 × 470 mm |
| Weight | 35 Kg |
| Base | Rubber Foot |
| Lifting Support | Handle |
| Body Construction | Complete Metal Body |
| Protection & Cooling | |
| Class of Ingress Protection | IP21 |
| Class of Insulation | Class H |
| Cooling Type | Forced Air |
| Thermal Protection | Yes – Auto Cutoff |
| Overload Protection | Yes |
| * Specifications subject to change without notice. Contact APS Welding for latest data sheet. | |
| Category | Type | Specification | Details |
|---|---|---|---|
| Suitable For | DIY Enthusiasts & Hobbyists | Light fabrication & home workshop applications | Ideal for beginners, repair tasks, and small welding projects |
| Farm & Agricultural Tool Repair | Equipment maintenance & repair welding | Suitable for gates, tools, frames, and agricultural machinery | |
| Maintenance & Repair Works | General repair and service applications | Used for workshop maintenance and on-site repair jobs | |
| Customizing & Restoration | Automotive and fabrication restoration work | Perfect for restoration, modification, and precision welding | |
| Industrial Fabrication | Light to medium-duty industrial applications | Reliable performance for fabrication shops and production units | |
| Weldable Materials | Steel & Mild Steel | General structural and fabrication welding | Suitable for frames, brackets, panels, and industrial components |
| Carbon Steel | Medium thickness welding applications | Provides strong weld penetration and stable arc performance | |
| Stainless Steel | TIG welding compatible | Used for SS fabrication, kitchen equipment, and piping | |
| Alloy Steel | Industrial maintenance applications | Suitable for repair and fabrication of alloy components | |
| Copper (TIG Mode) | Precision TIG welding applications | Supports clean welding for conductive metal components | |
| Electrode Type & Diameter | 6013, 7018 | 1.6 mm – 4.0 mm | Compatible with general-purpose and structural electrodes |
| Electrode Sizes | 1.6 mm, 2.0 mm, 2.5 mm, 3.15 mm, 4.0 mm | Supports thin sheet to medium-thickness welding applications | |
| Job Thickness | 1.0 – 6.0 mm | Suitable for fabrication, repair, and precision welding jobs |
The Discover 400 TIG by APS Welding is the perfect combination of power, portability, and productivity. This advanced welding machine is designed for both TIG (GTAW) and Stick (SMAW) welding, making it an ideal solution for professionals and DIY enthusiasts alike. Weighing only 35 kg, the Discover 400 TIG offers excellent portability while still handling tough welding tasks with ease.
Built with IGBT-based 30KHz Full Bridge Inverter Technology, this machine ensures exceptional performance, providing stable and precise arcs. With a wide input voltage range of 330VAC to 500VAC, the Discover 400 TIG can be used in a variety of environments, from farms and agricultural tool repairs to maintenance and restoration welding jobs.
The Discover 400 TIG is designed with durability in mind. The rugged metal body and complete protection (IP21 ingress protection) make it perfect for demanding work conditions. Whether you’re working with steel, mild steel, carbon steel, or stainless steel, this machine supports electrodes like 6013 and 7018, with diameters ranging from 1.6mm to 4.0mm. It handles job thicknesses from 1.0 mm to 6.0 mm, making it versatile enough for different welding needs.
This versatile welder is equipped with an advanced cooling system (forced air) and comes with essential accessories like a TIG torch (gas or water-cooled), earthing clamp, and argon regulator to ensure smooth and safe operation. Experience the power and reliability of the Discover 400 TIG for all your welding projects.
| Accessories | Model | Specification | Link |
|---|---|---|---|
| Earthing Clamp | EC40 + 35 sq.mm Cable | Heavy-duty earthing clamp with 35 sq.mm copper welding cable for stable grounding and reliable welding performance | View EC40 → |
| TIG Torch | Gas Cooled | Ergonomic gas-cooled TIG torch designed for smooth arc performance and precision welding applications | View Torch → |
| TIG Torch | Water Cooled (Optional) | High-performance water-cooled TIG torch suitable for extended welding operations and heavy-duty applications | View Water Cooled Torch → |
| Argon Regulator | — | Provides stable argon gas pressure control for consistent TIG welding quality and shielding performance | View Regulator → |
| Flowmeter | — | Precision flowmeter for accurate shielding gas flow adjustment and controlled gas consumption | View Flowmeter → |
Smooth and stable arc with minimal spatter
| Certification / Compliance | Scope | Relevance |
|---|---|---|
| ISO 9001:2015 | Complete manufacturing facility — Valsad, Gujarat | Quality-controlled production, consistent output standards |
| IS Certified | Applicable Indian Standards for welding equipment | Compliance with BIS standards for Indian market |
| MSME Registered | Advanced Power Sources Limited | Registered Indian manufacturer — supports domestic procurement requirements |
| CE Compliance | Available for applicable export models | European conformity — available on request for export buyers |
Yes, it is specifically designed for heavy-duty industrial TIG and MMA welding with high duty cycle performance.
Yes, Discover 400 TIG is ideal for stainless steel, mild steel, and alloy steel welding.
Yes, it supports both TIG and MMA welding processes.
Yes, the inverter-based design ensures lower power consumption with higher output efficiency.
Yes. APS Welding Machines operates under ISO 9001:2015, is MSME registered available.
Power plants, fabrication shops, refineries, shipyards, and heavy engineering industries commonly use Discover 400 TIG.
Yes, APS Welding offers pan-India service support along with easy availability of spare parts and technical assistance.
APS welding is always ready to help you. For Sales Enquiries:Contact: +91 9601 444 111For booking service call:Contact: +91 9601 444 222
We design and manufacture all our products and thus we know the best about our products.
We are able to offer international technology and service at optimum prices.
Our team is regularly trained for updates in service techniques and also are constantly update on knowledge and skill.
We ensure you professionally managed sales and after sales support.
Office & Manufacturing Facility:
Survey No 172/1, Paikee 2, OLD GIDC Gundlav, Valsad, Valsad District, GUJARAT – 396035. INDIA.