@60% Duty
@100% Duty
Weight
The most compact 3-phase 300A machine in its class. Easily carried to any site, floor, or elevated structure without lifting equipment.
Works reliably on DG sets and generator-supplied sites — critical for Indian construction projects.
Works with E6013, E7018, and other standard electrodes from 1.6 mm to 4.0 mm diameter — versatile for varied site work.
20 kHz IGBT inverter uses significantly less electricity than conventional transformer welders — reduces operating cost on long shifts.
The 330–500V wide input voltage range makes it particularly well-suited for construction sites in India where DG set or generator power is the primary supply — a common challenge for heavy infrastructure projects.
| Input Specifications | |
|---|---|
| Input Voltage | 415 VAC, 3-Phase, 50/60 Hz |
| Voltage Range | 330 VAC – 500 VAC |
| Input KVA @ 300A | 11.9 KVA |
| Input Cable | 4-core 2.5 sqmm, 4 m |
| Switching Device | IGBT Module |
| Output Specifications | |
| Output Current Range | 10A – 300A |
| Output @ 60% Duty | 300 Amps |
| Output @ 100% Duty | 205 Amps |
| Open Circuit Voltage | 85 VDC (max) |
| Output Type | DC Constant Current |
| Protection & Insulation | |
| Ingress Protection | IP21 |
| Insulation Class | Class H (180°C) |
| Cooling Method | Forced Air (Fan Cooled) |
| Thermal Protection | Auto Thermal Cutout |
| Mechanical Specifications | |
| Dimensions (L×W×H) | 515 × 260 × 395 mm |
| Weight | 21 kg |
| Body | Full Metal Chassis |
| Base | Rubber Foot |
| Lifting | Integrated Handle |
| * Specifications subject to change without notice. Contact APS Welding for latest data sheet. | |
APS Welding presents the Discover 300 Arc — the most compact 3-phase, 300 Amp stick welding machine in its class. Built for both production floors and outdoor site use, it delivers powerful performance with unmatched portability.
Powered by cutting-edge 20KHz Full Bridge IGBT inverter technology, this arc welder ensures stable output and consistently high-quality welds. Its wide input voltage range of 330–500 VAC keeps it reliable even under fluctuating power conditions — a common challenge on Indian construction sites and DG-set powered locations. At just 21 kg, it’s easy to carry to any site or elevated structure, without compromising on the robust output demanding fabrication work requires.
Ideal for mild steel, stainless steel, and carbon steel welding, the machine delivers precise control, low spatter, and strong weld penetration — making it a dependable choice for contractors, fabricators, and site professionals who need mobility without sacrificing performance.
For those investing in productivity and long-term durability, the Discover 300 Arc is a 300 Amp welding machine built to be trusted on the toughest job sites.
| Application & Welding Capability | |
|---|---|
| Weldable Materials | Mild Steel, Carbon Steel, Structural Steel, Stainless Steel |
| Electrode Type | E6013, E7018 |
| Electrode Diameter | 1.6 mm, 2.0 mm, 2.5 mm, 3.15 mm, 4.0 mm |
| Recommended Job Thickness | 1.0 mm – 6.0 mm |
The Discover 300 ARC is a 3-phase industrial stick welder — it is not a general-purpose or entry-level welder. Understanding where it excels (and where it doesn’t) helps buyers make the right call.
Heavy fabrication industries
Structural steel welding
Construction & infrastructure
Industrial Maintenance & Repair
Maintenance & repair workshops
Farm & agricultural equipment
Engineering & manufacturing units
| Accessories | |||
|---|---|---|---|
| Accessory | Model | Specification | Link |
| Electrode Holder | EH20 | 200A rated, heavy-duty insulated grip for site and production use | View EH20 |
| Earthing Clamp | EC20 | 300A rated, strong spring-jaw design | View EC20 |
| Welding Cable | 25 sqmm | Heavy-duty flexible copper cable, rated for 300A operation | View Cables |
| 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 |
High output current suitable for thick metal welding
Stable arc for smooth and spatter-free welds
Rugged body for harsh working environments
Suitable for continuous operation
Optimized power consumption
Reduces electricity cost during long welding cycles
Supports E6013, E7018 and other standard electrodes
Ideal for mild steel and structural steel welding.
Simple internal design
Easy servicing and long component life
50 kg to 10,000 kg load capacity. VFD drive, 0–120° tilt, motorised/hydraulic. For pipe, vessel, and structural welding automation.
Self-aligning and conventional welding rotators for cylindrical vessels, pipes, and tanks. Variable speed, adjustable wheel span.
Articulated welding arm systems for precise torch positioning, reach extension, and operator ergonomics in welding bays.
APS Rhino Cut plasma cutting power sources — from portable 40A hand cutters to 200A heavy-duty industrial plasma systems.
Compatible with MIG, TIG, and SAW processes for reliable, repeatable industrial performance.
Precision Tube-to-Tube Welding for strong, consistent, and leak-proof tube joints
Yes, Discover 300 ARC is a heavy-duty industrial welding machine designed for continuous operation in fabrication shops and construction sites.
The machine supports electrodes up to 5.0 mm, including commonly used E6013 and E7018 electrodes.
No, it is designed with a simple and robust internal structure, resulting in low maintenance and long service life.
Yes, Discover 300 ARC is optimized for efficient power consumption, reducing operational electricity costs.
Yes, its rugged construction makes it suitable for on-site and outdoor welding applications.