Introduction
This manual provides essential information for the safe and effective use of your Walfront ZVS Induction Heating Module. Please read these instructions carefully before setup and operation. This module is designed for various heating applications, including small part quenching, annealing, and melting metals when used with appropriate crucibles.
Safety Information
Warning: This device operates with high voltage and high current. Improper use can result in electric shock, burns, or fire. Always exercise extreme caution.
- Ensure you have sufficient electronic knowledge and practical ability before attempting assembly or operation.
- Always disconnect power before making any connections or adjustments.
- Do not touch the heating coil or heated objects during operation.
- Ensure adequate ventilation to prevent overheating. The built-in fan assists, but additional cooling may be necessary for prolonged high-power operation.
- Use a power supply that meets the specified voltage and current requirements. Over-voltage or under-current can damage the module.
- Keep flammable materials away from the heating area.
Package Contents
Verify that all items are present and undamaged upon opening the package.
- 1 x Walfront ZVS Induction Heating Module
- 1 x Copper Tube (for forming induction coil)
- Assorted accessories (standoffs, screws, nuts, mounting brackets)

This image displays the various accessories included with the ZVS Induction Heating Module. It features several brass standoffs of different lengths, small screws, nuts, and multiple brass mounting brackets, essential for assembly and installation.
Specifications
| Input Voltage | DC 12V - 36V (24V recommended) |
| Power Requirements | 12V: ≥5A, 15V and above: ≥10A |
| Maximum Power | 1000W |
| Maximum Current | 20A |
| Assembled Size (L x W x H) | 180mm x 90mm x 65mm (approx. 7.08 x 3.54 x 2.56 inches) |
| Heatsink Size | 42 x 35 mm |
| Output Terminals | 3 pillar output terminals (Parallel, 300V/25A) |

This image shows the Walfront ZVS Induction Heating Module from an angled perspective, highlighting its compact design and integrated cooling fan. Key dimensions are overlaid: 90mm width, 180mm length, and 65mm height, providing a clear understanding of its physical size.
Setup
- Prepare the Work Area: Ensure a clean, stable, and non-flammable work surface. Have appropriate safety gear, including safety glasses and heat-resistant gloves.
- Assemble the Module: If not pre-assembled, attach the cooling fan to the heatsink using the provided screws and standoffs. Ensure the fan is oriented to blow air onto the heatsink.
- Form the Induction Coil: The included copper tube needs to be shaped into an induction coil. The shape and number of turns will depend on the object to be heated. A common shape is a spiral or cylindrical coil. Ensure the ends of the copper tube are clean and free of insulation for proper connection.
- Connect the Coil: Connect the ends of the copper induction coil to the output terminals on the ZVS module. Ensure a secure and low-resistance connection.
- Connect Power Supply: Connect your DC power supply (12V-36V, recommended 24V or higher with sufficient current) to the input terminals of the ZVS module. Observe correct polarity (+ to + and - to -). A 12V power supply can be directly inserted into the dedicated 12V input on the board for the fan.
- Initial Check: Before applying full power, double-check all connections for security and correct polarity. Ensure no loose wires or short circuits.

A close-up view of the Walfront ZVS Induction Heating Module, showing the top-mounted cooling fan and the prominent copper induction coils. The PCB layout and various components are clearly visible, emphasizing the robust construction.

This image shows the flexible copper tube, designed to be shaped into an induction coil for heating various materials. Its coiled section and straight leads are visible, ready for connection to the module.
Operating Instructions
- Place Object: Position the object to be heated within the induction coil. Ensure it does not touch the coil directly to avoid short circuits or damage.
- Apply Power: Turn on the DC power supply. The cooling fan on the module should start operating.
- Monitor Heating: Observe the object as it heats. The heating speed will depend on the object's material, size, and the power supplied.
- Adjust Power (if applicable): If your power supply allows, you can adjust the voltage/current to control the heating rate. Higher voltage/current increases heating power and speed.
- Safety First: Always monitor the module for signs of overheating (e.g., excessive smoke, unusual odors). If any issues arise, immediately cut power.
- Shut Down: Once heating is complete, turn off the power supply. Allow the module and heated object to cool down before handling.

A direct top-down view of the Walfront ZVS Induction Heating Module, offering a clear layout of all electronic components, the cooling fan, and the scorpion logo on the PCB. This view is useful for understanding component placement.
Maintenance
- Cleaning: Periodically clean the module, especially the cooling fan and heatsink, to remove dust and debris. Use compressed air or a soft brush. Ensure power is disconnected before cleaning.
- Connections: Regularly check all electrical connections for tightness and corrosion. Loose connections can lead to arcing and damage.
- Coil Inspection: Inspect the copper induction coil for any signs of damage, deformation, or short circuits between turns. Replace if necessary.
- Storage: Store the module in a dry, dust-free environment when not in use.
Troubleshooting
- Module Not Powering On:
- Check power supply connection and ensure it is providing the correct voltage and current.
- Verify power supply is switched on.
- Check input polarity.
- No Heating or Weak Heating:
- Ensure the power supply meets the minimum current requirements (e.g., ≥10A for 15V+).
- Check the induction coil for proper formation and connection.
- Ensure the object is correctly positioned within the coil.
- Verify the object is a suitable material for induction heating.
- Overheating:
- Ensure the cooling fan is operating correctly and not obstructed.
- Check for proper ventilation around the module.
- Reduce input power if possible.
- Ensure the heatsink is clean and free of dust.
- Unusual Noises or Smells:
- Immediately disconnect power.
- Inspect for loose connections, damaged components, or short circuits.
Warranty and Support
For warranty information or technical support, please refer to the retailer or manufacturer's official website. Keep your purchase receipt as proof of purchase.
