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Discover 300DX

Discover 300 Arc – 300 Amp SMAW Welding Machine Powerful, Portable, and Reliable Welding Machine

APS Welding proudly presents the Arc Welding Machine 300 Amp, also known as the Discover 300 Arc – the most compact 3-phase welding solution in its class. This innovative machine is built for both production and outdoor site use, offering powerful performance and unmatched portability.

The Discover 300 Arc is equipped with cutting-edge 20KHz Full Bridge IGBT inverter technology, ensuring stable arc output and high-quality welds. With a wide input voltage range from 330VAC to 500VAC, the Arc Welding Machine 300 Amp remains reliable even in challenging power conditions. Weighing only 21kg, it is easy to carry while delivering the robust power needed for demanding welding applications.

Ideal for working on mild steel, stainless steel, and carbon steel, this Arc Welding Machine 300 Amp ensures precision, low spatter, and superior weld penetration. It’s a top choice for contractors, fabricators, and professionals who need mobility without compromising performance.

If you’re looking for a smart investment in productivity and durability, the Discover 300 Arc from APS Welding is the Arc Welding Machine 300 Amp you can trust.

Quick Specs:

TECHNOLOGY:

MODULE IGBT-based 20KHz Full Bridge Inverter Welding Machine
The Discover 300 Arc is powered by IGBT (Insulated Gate Bipolar Transistor) modules and operates at a high 20KHz switching frequency. This technology enables superior performance, providing precise control over the welding arc, delivering smooth, stable welds with minimal spatter.

The Full Bridge Inverter design allows for high-efficiency power conversion, converting AC input into a stable DC output, which improves the machine’s overall welding performance and energy efficiency. IGBT technology provides fast switching, ensuring the welder delivers more consistent power while maintaining durability under heavy loads. This cutting-edge technology allows the Discover 300 Arc to provide high output current (up to 300 amps) and is perfect for both heavy-duty industrial tasks and lighter welding jobs, making it adaptable to different working conditions and electrode types.

TOP FEATURES:

  • Best for Site Conditions:
    The Discover 300 Arc is engineered to perform under tough site conditions. With a wide input voltage range of 330VAC to 500VAC, this machine ensures reliable performance even when power supply is unpredictable. Whether you’re working in industrial plants, construction sites, or agricultural repair facilities, this welder provides continuous and stable power, enabling you to complete tasks efficiently, no matter where you’re located.

  • Easy Portability:
    Weighing only 21 kg, the Discover 300 Arc is lightweight and highly portable, making it perfect for on-site work and job transfers. Its compact size and practical design allow for easy handling and quick relocation, making it ideal for welders who require a machine that can move easily from one job to the next without sacrificing power or performance.

  • Rugged Capability with Complete Metal Body:
    Designed with durability in mind, the Discover 300 Arc features a full metal body that provides ultimate protection against tough environments. The rugged construction ensures that the machine withstands bumps, drops, and harsh weather conditions, while still delivering consistent and powerful performance. Whether used for site welding, repair work, or production welding, this machine can endure rough handling and continue to perform flawlessly.

QUICK SPECS

  • Input Voltage: 415VAC, 3 Phase, 50/60Hz.
  • Output Current @ 60%: 300Amp
  • Output Current @ 100%: 205Amp

PROCESS:

SMAW – Stick Welder, DC Constant Current Power Source

Technical Specifications:

Input Specifications:

  • Input Voltage: 415 VAC, 3Phase, 50/60Hz (330VAC to 500VAC)
  • Primary switching device: IGBT Module
  • Input KVA @ 300A: 11.9KVA
  • Input Cable: 4 core 2.5 sqmm, 4 meters, open leads.

Output Specifications:

  • Output Current Range: 10 Amp to 300 Amps
  • Output Current @ 60% Duty Cycle: 300 Amps
  • Output Current @ 100% Duty Cycle: 205 Amps
  • Max Open Circuit Voltage: 85 VDC

Other Specifications:

  • Class of Ingress Protection: IP21
  • Class of Insulation: Class H
  • Type of cooling: Forced Air

Mechanical Specifications:

  • Dimensions: L:515mm x W:260mm x H:395mm
  • Weight: 21Kgs
  • Base: Rubber Foot
  • Lifting Support: Handle

Other Details:

SUITABLE FOR:

  • Site Use as well as Production Environments
  • Farm & Agricultural Tools Repair/Manufacture
  • Maintenance & Repair Works
  • Customizing & Restoration Welding

WELDABLE MATERIALS:

  • Steel, Mild Steel, Carbon Steel
  • Stainless Steel

ELECTRODE TYPE & DIAMETER:

  • 6013, 7018
  • 1.6mm, 2.0mm, 2.5mm, 3.15mm, 4.0mm

JOB THICKNESS:

  • 1.0 mm TO 6.0 mm

STANDARD ACCESSORIES:

  • Electrode Holder: EH20
  • Earthing Clamp: EC20
  • Welding Cable 25 sqm

NOTE: Continuous development entitles us to change specifications without notice. Pictures are for reference only.

Certifications & Compliance (EEAT Core)

APS Welding machines are manufactured in compliance with recognized international and national standards to ensure reliability and safety:

  •  ISO 9001:2015 Certified Manufacturing Facility
  •   IS Certified (as per applicable Indian Standards)

These certifications ensure high reliability, operational safety, and consistent performance
for heavy industrial welding applications

APPLICATIONS

Discover 300 ARC is widely used in:

  • Heavy fabrication industries

  • Structural steel welding

  • Construction & infrastructure projects

  • Maintenance and repair workshops

  • Engineering and manufacturing units

Key Features & Benefits

✔ Powerful Welding Performance
  • High output current suitable for thick metal welding

  • Stable arc for smooth and spatter-free welds

✔ Heavy-Duty Industrial Design
  • Rugged body for harsh working environments

  • Suitable for continuous operation

✔ Energy Efficient Operation
  • Optimized power consumption

  • Reduces electricity cost during long welding cycles

✔ Compatible with Multiple Electrodes
  • Supports E6013, E7018 and other standard electrodes

  • Ideal for mild steel and structural steel welding

✔ Low Maintenance
  • Simple internal design

  • Easy servicing and long component life

Related Welding Products

Looking for complete welding solutions? Explore our advanced welding machines and accessories:

👉 MIG Welding Machines

👉 TIG Welding Machines

👉 Plasma Cutting Machines

👉 TIG Welding Accessories

👉 SMAW / ARC Welding Machines

Frequently Asked Questions – 300 Amp SMAW Welding Machine

  • Is Discover 300 ARC suitable for industrial use?

    Yes, Discover 300 ARC is a heavy-duty industrial welding machine designed for continuous operation in fabrication shops and construction sites.

  • What electrode sizes can be used with this machine?

    The machine supports electrodes up to 5.0 mm, including commonly used E6013 and E7018 electrodes.

  • Does this welding machine require high maintenance?

    No, it is designed with a simple and robust internal structure, resulting in low maintenance and long service life.

  • Is this welding machine energy efficient?

    Yes, Discover 300 ARC is optimized for efficient power consumption, reducing operational electricity costs.

  • Is this machine suitable for outdoor welding?

    Yes, its rugged construction makes it suitable for on-site and outdoor welding applications.