1. Introduction
This manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of your Riland Portable WS TIG Inverter Arc Welding Machine. These models (WS 200S, WS 250S, WS 300S) are designed for DC TIG welding, suitable for a variety of materials including stainless steel, carbon steel, and aluminum alloy. Please read this manual thoroughly before operating the machine.
Product Features:
- Classic Inverter Technology: Utilizes a classic inverter power platform for stable and reliable performance.
- Easy Operation: Compact size and lightweight design ensure simple handling and operation.
- High Arc Initiation Success: Achieves up to 99.9% arc initiation success rate, ideal for quick spot welding.
- Stable Arc: Produces a steady welding arc and excellent bead formation.
- Anti-Interference: Strong resistance to interference, ensuring good stability and a low rework rate.
- Portable: Easy to carry, well-suited for on-site construction and other field applications.
2. Safety Information
WARNING: Welding can be dangerous. Always follow safety precautions to prevent injury or death.
- Always wear appropriate personal protective equipment (PPE), including welding helmet, gloves, and protective clothing.
- Ensure proper ventilation to avoid inhaling welding fumes.
- Protect bystanders from arc rays and hot metal.
- Ensure the welding machine is properly grounded.
- Do not operate the machine in wet conditions or near flammable materials.
- Disconnect power before performing any maintenance or service.
3. Product Overview
3.1 Models and Features
The Riland WS TIG series includes models WS 200S, WS 250S, and WS 300S, each offering varying current ranges and input voltages to suit different welding needs.
3.2 Standard Accessories
The WS TIG welding machine typically includes the following standard accessories:
- TIG Welding Machine (WS 200S/250S/300S)
- TIG Torch
- Ground Clamp with Cable
- Welding Electrode
4. Setup
4.1 Power Connection
- Ensure the power switch on the welding machine is in the "OFF" position.
- Connect the power cord to a suitable power outlet. Refer to the specifications for your model's required input voltage (220V for WS 200S/250S, 380V for WS 300S).
- Verify that the power supply is stable and matches the machine's requirements.
4.2 Gas Connection
- Connect the gas hose from your argon cylinder to the gas inlet on the rear panel of the welding machine.
- Secure all connections to prevent gas leaks.
- Open the gas cylinder valve and set the desired gas flow rate using a flowmeter (typically 9-10 L/min for 1.6mm electrode, 10 L/min for 2.0mm electrode).
4.3 Torch and Ground Clamp Connection
- Connect the TIG torch cable to the appropriate connector on the front panel of the welding machine.
- Connect the ground clamp cable to the ground terminal on the front panel.
- Attach the ground clamp securely to the workpiece, ensuring good electrical contact.
5. Operating Instructions
5.1 Basic TIG Welding
The Riland WS TIG series performs DC TIG welding, suitable for stainless steel, carbon steel, and other DC weldable metals. It is not designed for AC TIG welding of aluminum.
5.2 Parameter Setting
Adjust the welding current using the control knob on the front panel. The recommended current varies based on material type and thickness. Refer to the example settings below:
| Sample | 1 (Carbon Steel) | 2 (Stainless Steel) |
|---|---|---|
| Material | Carbon Steel | Stainless Steel |
| Plate Thickness (mm) | 4mm | 4mm |
| Weld Position | Butt Weld | Spot Weld |
| Current (A) | 100A | 120A |
| Gas Flow Rate | 9-10L/min | 10L/min |
| Tungsten Electrode Diameter | Φ1.6mm | Φ2.0mm |
| Welding Wire Diameter | Φ2.0mm | / |
5.3 Welding Applications
This machine is widely used in various applications:
- Small hardware manufacturing
- Stainless steel door and window fabrication
- Kitchenware production
- Small pipe welding
6. Maintenance
Regular maintenance ensures the longevity and optimal performance of your welding machine.
6.1 Daily Checks
- Inspect all cables and connections for damage or loose fittings.
- Check the TIG torch for wear and tear, especially the nozzle and electrode.
- Ensure the ground clamp is clean and makes good contact.
6.2 Cleaning
- Keep the machine clean and free from dust and debris. Use compressed air to blow out internal components periodically.
- Clean the cooling fan vents to ensure proper airflow.
6.3 Storage
- Store the welding machine in a dry, clean environment, away from excessive moisture and dust.
- Protect the machine from extreme temperatures.
7. Troubleshooting
This section addresses common issues you might encounter. For complex problems, contact customer support.
| Problem | Possible Cause | Solution |
|---|---|---|
| No Power | Loose power connection, tripped circuit breaker, faulty power switch. | Check power cord, reset breaker, contact service if switch is faulty. |
| No Arc / Difficult Arc Start | Poor ground connection, incorrect current setting, contaminated electrode, gas flow issue. | Ensure good ground, adjust current, clean/replace electrode, check gas supply. |
| Unstable Arc / Poor Weld Quality | Incorrect gas flow, improper current, dirty workpiece, worn torch parts. | Adjust gas flow, optimize current, clean workpiece, inspect/replace torch consumables. |
| Overheating Indicator On | Exceeded duty cycle, blocked ventilation, high ambient temperature. | Allow machine to cool, clear vents, operate in cooler environment. |
The manufacturing process includes rigorous quality control steps such as material incoming inspection, component manufacturing QC, assembly tests, electrical safety testing, performance evaluation, cooling efficiency tests, and plasma arc testing to minimize issues.
8. Specifications
Detailed technical specifications for the Riland WS TIG series welding machines:
| Parameter | TIG 200SE | WS 200S | WS 250S | WS 300S |
|---|---|---|---|---|
| Input Voltage (V) | 1-phase 220±15% | 1-phase 220±15% | 1-phase 220±15% | 3-phase 380±15% |
| Frequency (Hz) | 50/60 | 50/60 | 50/60 | 50/60 |
| Rated Input Power (KVA) | 4.5 | 6.2 | 6.4 | 8.4 |
| No-load Voltage (V) | 40 | 43 | 43 | 47 |
| Current Adjustment Range (A) | 10-160 | 10-200 | 10-210 | 10-300 |
| Duty Cycle (40°C) | 35% | 30% | 30% | 25% |
| Efficiency | 80% | 80% | 80% | 85% |
| Power Factor | 0.73 | 0.73 | 0.73 | 0.93 |
| Insulation Class | F | F | F | H |
| Protection Class | IP21S | IP21S | IP21S | IP21S |
| Net Weight (KG) | 7 | 7 | 7 | 19 |
| Dimensions (mm) | 395*153*301 | 395*153*301 | 395*153*301 | 505*203*375 |
| Material / Metal Processed | Carbon Steel, Stainless Steel, Aluminium alloy | |||
| Welding Thickness | 0.3 - 8.0 mm (varies by model and material) | |||
9. User Tips
- For quick spot welding, leverage the machine's fast arc initiation (up to 99.9% success rate).
- The compact and lightweight design makes these welders highly portable, ideal for jobs requiring movement or on-site work.
- The machine's strong anti-interference capabilities contribute to stable welding and reduce the need for rework.
- Always ensure your workpiece is clean and free of contaminants for the best weld quality and arc stability.
10. Warranty and Support
10.1 Warranty
The Riland WS TIG Inverter Arc Welding Machine comes with a One Year Warranty from the date of purchase. This warranty covers manufacturing defects and malfunctions under normal use. Any problem within the warranty time will be serviced free of charge.
10.2 Customer Support
For any questions, technical assistance, or warranty claims, please contact our customer service team. We offer 24-hour live service and have experienced engineers available to support you.
Contact Information:
WhatsApp: +86 18163688938
Email: zhaoziqiang79@gmail.com
