RILAND TIG-250PGDM Laser Cold Welding Machine

1. Introduction

The RILAND TIG-250PGDM is a portable DC pulse cold welding TIG welder designed for precision welding of stainless steel and carbon steel. Featuring digital control technology, it offers both TIG and cold welding functions, making it suitable for various applications including hardware manufacturing, stainless steel door and window processing, and household kitchenware/furniture processing. Its inverted DC technology ensures a beautiful weld finish, while its compact size, light weight, and high efficiency make it ideal for mobile work.

2. Safety Information

Always prioritize safety when operating welding equipment. Failure to follow safety precautions can result in serious injury or death. This section outlines general safety guidelines; always refer to local safety regulations and standards.

2.1 Personal Protective Equipment (PPE)

• Welding Helmet: Always wear a welding helmet with appropriate shade lenses to protect eyes and face from arc rays and sparks.
• Gloves: Use flame-resistant welding gloves to protect hands from heat, sparks, and electrical shock.
• Protective Clothing: Wear flame-resistant clothing (long sleeves, long pants) to protect skin from UV radiation and burns. Avoid synthetic fabrics.
• Safety Shoes: Wear sturdy, closed-toe shoes, preferably leather, to protect feet from falling objects and sparks.

2.2 Work Area Safety

• Ventilation: Ensure adequate ventilation to remove welding fumes and gases. Use local exhaust ventilation or respirators if necessary.
• Fire Hazards: Keep flammable materials away from the welding area. Have a fire extinguisher readily available.
• Electrical Safety: Ensure the welding machine is properly grounded. Inspect cables and connections for damage before each use. Do not operate in wet conditions.
• Clear Area: Keep the work area clean and free of clutter to prevent trips and falls.

2.3 Electrical Shock Prevention

• Never touch live electrical parts.
• Ensure the workpiece is properly grounded.
• Do not use damaged cables or equipment.
• Disconnect power before performing any maintenance or changing accessories.

3. Package Contents

Upon unpacking, please verify that all standard accessories are present:

• 1 x RILAND TIG-250PGDM Welding Machine
• 1 x 8m Argon Arc Welding Gun (TIG Torch)
• 1 x 3m Ground Wire Clamp Set
• 1 x Tungsten Needle
• 1 x Hexagon Wrench
• 1 x Quick Plug
• 2 x Throat Hoops (Hose Clamps)

Note: Optional accessories such as a welding cap, argon gauge, and additional fragile parts are available at extra cost and are not included in the standard package.

4. Product Overview

The TIG-250PGDM features a robust design with a portable handle and corner protection for durability and ease of transport.

4.1 Front Panel

The front panel includes:

• Digital Display: Shows welding parameters.
• Control Knobs: Three knobs for adjusting welding current, voltage, and inductance.
• Connectors: Ports for the TIG torch, ground clamp, and gas inlet.

4.2 Rear Panel

The rear panel includes:

• Power Switch: Main ON/OFF switch.
• Cooling Fan: Ensures efficient heat dissipation.
• Power Input: Connection for the main power cable.
• Gas Inlet: Connection for the argon gas supply.

5. Setup

Follow these steps to set up your RILAND TIG-250PGDM welding machine:

5.1 Power Connection

1. Ensure the main power switch on the rear panel is in the OFF position.
2. Connect the power cable to the power input on the rear panel of the welder.
3. Plug the power cable into a suitable 220V power outlet.

5.2 Welding Circuit Connections

1. Ground Clamp: Connect the ground clamp cable to the negative (-) terminal on the front panel. Securely attach the ground clamp to the workpiece or welding table, ensuring good electrical contact.
2. TIG Torch: Connect the TIG torch cable to the positive (+) terminal on the front panel. Ensure the gas hose from the torch is connected to the gas outlet on the front panel.

5.3 Gas Supply Connection (for TIG Welding)

1. Connect the argon gas hose from your gas cylinder (with a regulator, not included) to the gas inlet on the rear panel of the welding machine.
2. Ensure all gas connections are tight to prevent leaks.
3. Open the valve on the argon gas cylinder.

5.4 Tungsten Needle Installation

1. Unscrew the back cap and collet body from the TIG torch head.
2. Insert the tungsten needle into the collet, ensuring it protrudes approximately 2-3mm from the ceramic nozzle.
3. Tighten the collet body and back cap.
4. Ensure the tungsten needle is properly sharpened for optimal arc stability.

6. Operating Instructions

Once the setup is complete, you can begin operating the welder.

6.1 Powering On

1. Ensure all connections are secure and the gas supply is open (if TIG welding).
2. Flip the main power switch on the rear panel to the ON position. The digital display will illuminate.

6.2 Setting Welding Parameters

Use the three control knobs on the front panel to adjust the following parameters:

• Current: Adjust the welding current according to the material thickness and type. The digital display will show the current value.
• Voltage: Adjust the welding voltage as needed.
• Inductance: Adjust inductance for arc stability and bead shape, particularly important for pulse welding.
• Aftergas Time: This setting controls how long shielding gas flows after the arc is extinguished, protecting the hot weld from atmospheric contamination. Adjust based on material and current.

6.3 TIG Welding Process

1. Select the TIG welding mode on the machine (if applicable, based on controls).
2. Ensure proper gas flow.
3. Position the TIG torch over the workpiece, maintaining a small gap between the tungsten and the metal.
4. Initiate the arc (this machine supports digital control, implying HF start or lift TIG).
5. Maintain a consistent arc length and travel speed, feeding filler rod into the weld puddle as needed.
6. After completing the weld, hold the torch in place for the set aftergas time to allow the weld to cool under gas protection.

6.4 Cold Welding Function

The cold welding function is designed for applications requiring minimal heat input, reducing distortion and discoloration. Consult the specific settings and techniques for cold welding in the detailed manual (if available) or through RILAND technical support.

7. Maintenance

Regular maintenance ensures the longevity and optimal performance of your welding machine.

7.1 Daily Maintenance

• Cleanliness: Wipe down the exterior of the machine with a clean, dry cloth.
• Cable Inspection: Check all welding cables, power cords, and gas hoses for cuts, abrasions, or loose connections. Replace any damaged components immediately.
• Tungsten Electrode: Inspect the tungsten electrode for contamination or improper sharpening. Resharpen or replace as needed.

7.2 Weekly/Monthly Maintenance

• Cooling Fan: Ensure the cooling fan on the rear panel is free from dust and debris. Use compressed air to gently clean the fan blades and vents.
• Torch Consumables: Inspect and replace worn-out torch consumables such as ceramic nozzles, collets, and collet bodies.
• Gas Connections: Check all gas connections for leaks using a leak detection solution.

7.3 Storage

When not in use, store the welding machine in a clean, dry environment, away from dust, moisture, and extreme temperatures.

8. Troubleshooting

This section provides solutions to common issues you might encounter.

8.1 No Power

• Check Power Cord: Ensure the power cord is securely plugged into both the machine and the wall outlet.
• Power Switch: Verify the main power switch is in the ON position.
• Circuit Breaker: Check the circuit breaker or fuse in your electrical panel.

8.2 No Arc / Unstable Arc

• Ground Connection: Ensure the ground clamp has good contact with the workpiece and is securely connected to the machine.
• Tungsten Electrode: Check if the tungsten electrode is properly installed, clean, and sharpened.
• Gas Flow: Verify that the argon gas cylinder is open and the gas flow rate is adequate.
• Settings: Review welding current and voltage settings.

8.3 Poor Weld Quality

• Material Cleanliness: Ensure the workpiece is clean and free of oil, rust, or paint.
• Gas Coverage: Check for proper gas flow and ensure there are no drafts in the welding area.
• Travel Speed & Arc Length: Adjust your travel speed and arc length for optimal results.
• Tungsten Contamination: If the tungsten tip is contaminated, re-sharpen or replace it.

For more complex issues, please contact RILAND customer service.

9. Specifications

10. Warranty & Support

The RILAND TIG-250PGDM welding machine comes with a comprehensive warranty and support system:

• Warranty: Complete goods are guaranteed for one year, and core parts are guaranteed for three years from the date of purchase.
• Spare Parts: Free spare parts are provided during the warranty period for covered defects.
• Customer Service: 24-hour online customer service is available for timely replies to your inquiries.
• Technical Support: Video online technical support is offered to assist with setup, operation, and troubleshooting.

For any warranty claims or technical assistance, please contact RILAND customer service with your product model and purchase details.

11. User Tips

• Portability: Take advantage of the machine's portable design for mobile welding tasks. The corner guard design helps protect it during transport.
• Precision Control: Utilize the LED digital display and three control knobs for precise adjustment of current, voltage, and inductance to achieve optimal weld quality for different materials and thicknesses.
• Aftergas Setting: Properly adjust the aftergas time to ensure the weld pool and tungsten are adequately shielded as they cool, preventing oxidation and improving weld appearance.
• Material Compatibility: This welder is specifically designed for carbon steel and stainless steel. Ensure your materials are compatible for best results.

12. Frequently Asked Questions (FAQ)

Q: Are you a factory or a trading company?

A: We are a modern company integrating industry and trade, specializing in the production of welding and cutting equipment, including MIG/TIG/MMA arc welders and plasma cutting machines.

Q: What is your delivery time?

A: Normally, we will deliver the goods within 45 days after confirming the sales contract and product details.

Q: What payment terms do you accept?

A: We accept T/T or L/C at sight.

Q: Does your product support OEM?

A: Yes, we support OEM/ODM.

Q: How about your warranty?

A: Complete goods are guaranteed for one year and core parts for three years. We also offer free spare parts.