WS-315: 315A IGBT Inverter TIG Welder (GTAW) — Dual Pulse DC TIG Welding Machine
WS-315
315A DC Dual Pulse TIG Welder
Part of the TIG Welders product line. Designed and manufactured in Qingdao, China with IGBT inverter technology for reliable industrial performance. CE certified for global export.
Typical Applications: Aerospace Components, Automotive Exhaust & Turbo, Pressure Vessel Fabrication, Ship Piping Systems, Structural Steel
Product Overview
The WS-315 is a 315A industrial-grade DC TIG welder (GTAW) engineered for demanding fabrication environments where duty cycle matters. Powered by advanced IGBT inverter modules with digital dual pulse control, it delivers 315A of welding current with a 60% duty cycle at maximum output. The WS-315 features extended pulse frequency range (0.5-2000 Hz), and an extended pulse frequency range for unmatched arc stability across all material types and thicknesses.
This three-phase TIG welder is the preferred choice for aerospace component manufacturing and industrial pipe welding. The 20-channel memory stores complete parameter sets, while the spot welding mode enables precise tack welding for fixturing. With water cooler compatibility for extended high-amperage operation, 16 kg net weight, and comprehensive waveform control, the WS-315 bridges the gap between medium-duty and heavy-industrial GTAW welding. CE certified with RoHS compliance.
Detailed Specs — WS-315
| Parameter | Specification |
|---|---|
| Model | WS-315 |
| Welding Process | TIG (GTAW) / Stick (SMAW) |
| Rated Input Voltage | AC 220V / 380V ±15%, 3-Phase, 50/60Hz |
| Rated Input Power | 9.5 kVA |
| Output Current Range (TIG) | 10 – 315A |
| Output Current Range (Stick) | 10 – 280A |
| Rated Duty Cycle (TIG) | 60% @ 315A / 100% @ 245A (40°C) |
| Rated Duty Cycle (Stick) | 60% @ 280A / 100% @ 215A (40°C) |
| No-Load Voltage | 72V |
| Pulse Frequency | 0.5 – 2000 Hz |
| Pulse Duty Ratio | 5 – 95% |
| Pre-Flow Time | 0 – 15s |
| Post-Flow Time | 0 – 30s |
| Up-Slope / Down-Slope | 0 – 15s each |
| Arc Start | High Frequency (HF) / Lift TIG |
| AC Balance (Cleaning Width) | 10 – 90% |
| AC Frequency | 40 – 400 Hz |
| Spot Welding Mode | 0.1 – 10s adjustable |
| Tungsten Electrode Size | 1.0 – 4.8mm |
| Welding Thickness Range | 0.3 – 15mm (steel) |
| Water Cooler Ready | Yes (connection port included) |
| Efficiency | ≥87% |
| Protection Class | IP21S |
| Insulation Class | F |
| Cooling | Forced Air (water cooler optional) |
| Memory Presets | 20 channels |
| Dimensions (L×W×H) | 560 × 280 × 420 mm |
| Net Weight | 16 kg |
| Certifications | CE, RoHS (CSA available) |
| OEM Customization | Color, panel layout, input voltage, branding |
Application Scenarios
Aerospace Components
Precision welding of titanium engine components, and stainless steel aerospace structures to AWS D17.1 standards.
Automotive Exhaust & Turbo
TIG welding of stainless steel exhaust systems, turbo manifolds, intercooler piping, and custom roll cages with superior cosmetics and strength.
Pressure Vessel Fabrication
Root pass and fill welding on ASME pressure vessels with X-ray quality weld deposits, including tube-to-tubesheet joints for heat exchangers.
Ship Piping Systems
Onboard and workshop TIG welding of stainless steel and cupronickel ship piping, including seawater systems, hydraulic lines, and fuel piping.
Structural Steel
Root pass TIG welding for critical structural joints where weld integrity and full penetration are specified, followed by stick electrode fill/cap.
WS-315 vs Adjacent Models
| Model | WS-250 | WS-315 | WS-400 |
|---|---|---|---|
| Rated Current | 250A | 315A | 400A |
| Input Voltage | 220/380V 1/3-Phase | 220/380V 3-Phase | 380V 3-Phase |
| TIG Current Range | 10 – 250A | 10 – 315A | 10 – 400A |
| Duty Cycle @ Max | 60% | 60% | 60% |
| 100% Duty Cycle @ | 195A | 245A | 310A |
| Pulse Frequency | 0.5 – 500 Hz | 0.5 – 2000 Hz | 0.5 – 2500 Hz |
| AC Frequency | 40 – 250 Hz | 40 – 400 Hz | 40 – 400 Hz |
| Net Weight | 12 kg | 16 kg | 22 kg |
| Memory Presets | 10 | 20 | 30 |
| Water Cooler Ready | No | Yes | Yes (integrated) |
| Best For | Medium fab, mold repair, food equipment | Industrial Al fab, aerospace, pressure vessels | Heavy industry, shipbuilding |
Technical Highlights
Extended Pulse Range 0.5-2000Hz
Ultra-wide pulse frequency range enables fine-tuned control for every application. Low frequencies (<10Hz) for gap bridging and keyhole control, mid-range for general welding, high frequencies (>500Hz) for arc constriction and deep penetration on thick sections.
Water Cooler Ready
Integrated water cooler connection port and control circuitry. When paired with an external water cooling unit, the WS-315 sustains 315A continuous operation without thermal shutdown on long production runs.
Spot Welding Mode
Built-in TIG spot welding timer (0.1-10s) for consistent tack welds during fixturing and assembly. Ideal for sheet metal alignment, corner fit-up, and position tacking before full welding.
Advanced AC Waveform Control
40-400Hz AC frequency adjustment independently controls arc cone width and penetration profile.
Need Technical Advice? Talk to Our Welding Engineers
We'll help you select the right model for your specific welding application and provide a detailed FOB quotation.
Contact Sales