1. Introduction
Thank you for choosing the Silverflo 938BD-III Soldering and Rework Station. This professional-grade station combines a T12 soldering iron and a 700W hot air gun, designed for precision soldering and desoldering of various electronic components, including BGA and SMD. This manual provides essential information for safe and efficient operation, maintenance, and troubleshooting of your device.

Figure 1: Silverflo 938BD-III Soldering and Rework Station with included components.
2. Safety Information
- Always operate the station in a well-ventilated area to avoid inhaling solder fumes.
- Wear appropriate personal protective equipment, including safety glasses and heat-resistant gloves.
- The soldering iron tip and hot air gun nozzle reach very high temperatures. Avoid direct contact with skin or flammable materials.
- Ensure the power cord is securely connected and the station is placed on a stable, heat-resistant surface.
- Do not use the station near water or in damp conditions.
- Unplug the station from the power outlet when not in use or before performing maintenance.
- Keep out of reach of children.
3. Package Contents
The Silverflo 938BD-III Soldering and Rework Station package typically includes the following items:
- Silverflo 938BD-III Control Unit
- T12 Soldering Iron Handle
- Hot Air Gun Handle
- Soldering Iron Holder with Cleaning Ball and Sponge
- Hot Air Gun Nozzles (various sizes)
- Soldering Iron Tips (e.g., 3 tips as specified)
- Power Cord

Figure 2: Example of included components in Package 2.
4. Specifications
| Feature | Specification |
|---|---|
| Model | 938BD-III |
| Brand Name | silverflo |
| Rated Power | 775W |
| Display Type | LED |
| Hot Air Rework Station Temperature Range | 100℃ – 480℃ (212℉ – 896℉) |
| Hot Air Rework Station Air Delivery | Brushless fan with smooth air delivery |
| Hot Air Rework Station Air Volume (Measured at Exhaust) | ≤30L/min |
| Soldering Station Temperature Range | 200℃ – 480℃ (392℉ – 896℉) |
| Origin | Mainland China |
| Package Length | 29 cm |
| Package Width | 20 cm |
| Package Height | 18 cm |
| Package Weight | 1.63 kg |
5. Setup
- Unpacking: Carefully remove all components from the packaging. Inspect for any damage.
- Placement: Place the main control unit on a stable, heat-resistant, and non-flammable surface. Ensure adequate ventilation around the unit.
- Connect Soldering Iron: Plug the T12 soldering iron handle into the designated port on the control unit (labeled "SOLDERING STATION").
- Connect Hot Air Gun: Plug the hot air gun handle into its designated port (labeled "REWORK STATION").
- Install Soldering Iron Holder: The multifunctional soldering iron holder can be placed on the side or on top of the main unit for space-saving. Ensure it is stable.
- Install Soldering Tips: The T12 soldering iron features an integrated heating core for easy installation. Simply insert the desired tip into the soldering iron handle. Note: Only original brand heating cores are currently supported.
- Install Hot Air Nozzles: Select the appropriate nozzle for your task and attach it securely to the hot air gun.
- Power Connection: Connect the power cord to the station and then to a grounded electrical outlet of the correct voltage (e.g., 120V US, 220V EU, 230V UK, 240V AU depending on your model).

Figure 3: T12 Soldering Iron Tips with various shapes and dimensions.
6. Operating Instructions
6.1. Power On/Off
Flip the main power switch located on the front panel to the 'ON' position to power on the station. The LED displays will illuminate. Flip to 'OFF' to power down.
6.2. Soldering Iron Operation
- Temperature Adjustment: Use the dedicated temperature control buttons or knob for the soldering station to set the desired temperature. The LED display will show the current temperature.
- Rapid Heating: The T12 soldering iron features a rapid heating element, allowing it to reach the set temperature quickly for efficient soldering.
- Auto Sleep Mode: The soldering iron will automatically enter a 10-minute sleep mode if no usage or movement is detected for an extended period. This prevents tip oxidation, extends lifespan, and saves energy. To wake it up, simply pick up the soldering iron.

Figure 4: Illustration of the soldering iron's rapid heating capability.

Figure 5: Soldering iron entering 10-minute auto-sleep mode and waking up.
6.3. Hot Air Gun Operation
- Temperature Adjustment: Use the dedicated temperature control buttons or knob for the rework station to set the desired hot air temperature.
- Air Volume Adjustment: Adjust the air volume using the corresponding control on the unit.
- Auto Start/Standby: The hot air gun is designed to automatically start heating when picked up from its holder and enter standby mode when placed back into the holder.

Figure 6: Hot air gun featuring a brushless fan for smooth and quiet air delivery.
6.4. Digital Temperature Calibration
Both the hot air gun and soldering iron support digital temperature calibration to ensure accuracy and improve work efficiency.
- Simultaneously press the "+" and "-" buttons on the respective station (soldering or rework). The display will show "C.A.L.".
- Measure the current actual temperature of the tip/nozzle using a thermometer.
- Adjust the displayed temperature on the station to match the measured actual temperature using the "+" and "-" buttons.
- Press the temperature adjustment button again to save the calibration.

Figure 7: Steps for performing digital temperature calibration.
6.5. Product Demonstration Video
For a visual guide on the features and operation of the Silverflo 938BD-III Soldering Station, please watch the official demonstration video:
Video 1: Demonstration of Silverflo 938BD-III Soldering Station features and usage.
7. Maintenance
7.1. Soldering Iron Tip Maintenance
- Cleaning: Regularly clean the soldering iron tip using the metal cleaning ball or the damp cleaning sponge provided in the multifunctional holder.
- Tinning: After each use, and before storing, add a small amount of fresh solder (tin) to the tip. This prevents oxidation and prolongs the tip's lifespan.
- Replacement: Replace tips when they become excessively worn or corroded to maintain optimal performance.

Figure 8: Multifunctional soldering iron holder with cleaning accessories.
7.2. General Cleaning
- Ensure the unit is unplugged and cooled down before cleaning.
- Wipe the exterior of the control unit and handles with a soft, dry cloth.
- Do not use abrasive cleaners or solvents.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Station does not power on | Power cord disconnected, power switch off, faulty outlet | Check power cord connection, ensure power switch is ON, test outlet with another device. |
| Soldering iron/Hot air gun not heating | Incorrect temperature setting, loose connection, faulty heating element | Verify temperature settings, check cable connections, contact support if element is suspected faulty. |
| Inaccurate temperature readings | Needs calibration | Perform digital temperature calibration as described in Section 6.4. |
| Soldering iron tip oxidizes quickly | Improper cleaning/tinning, high temperature, sleep mode not active | Clean and tin tip regularly, use appropriate temperature, ensure auto-sleep is functioning. |
| Hot air gun not blowing air | Fan malfunction, unit not picked up from holder | Ensure hot air gun is picked up to activate, check for obstructions, contact support if fan is faulty. |
9. User Tips
- For optimal performance and longevity, always ensure your soldering iron tip is clean and properly tinned before and after each use.
- Take advantage of the 10-minute auto-sleep function for the soldering iron; it significantly reduces tip oxidation and saves energy.
- Regularly calibrate the temperature of both the soldering iron and hot air gun to maintain precision in your work.
- When using the hot air gun, start with lower temperatures and gradually increase as needed to prevent damage to sensitive components.
10. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the documentation provided with your purchase or contact the seller directly. Keep your proof of purchase for warranty claims.