Sunkko 709AD+ 220V Spot Welder with Soldering Iron for 18650 Li-ion Battery

Sunkko 709AD+ 220V Spot Welder with Soldering Iron for 18650 Li-ion Battery

The Sunkko 709AD+ is a pulse spot welding machine designed to provide a versatile and reliable solution for battery building and repair, especially for 18650 lithium batteries. Its advanced design allows precise control of power and temperature, making efficient and professional work easier.

Key features

• Adjustable power: Allows output power to be adjusted using buttons and a dial, adapting to different welding needs.
• Two welding modes: Fixed welding head for standard jobs and mobile welding pen for greater reach and building large battery packs.
• Foot switch: Optional for greater convenience during welding.
• Built-in soldering iron: Adjustable temperature between 150° and 450°, with fast heating and ±5° precision for additional work.
• Auto-cooling system and intelligent auto-welding mode: Improves efficiency and safety, removing the need to use a foot switch when welding with the pen.

Technical specifications

• Model: 709AD+
• Maximum power: 3.2 kW
• Input voltage: AC 220V
• Product size: 140x245x200 mm
• Net weight: 5.5 kg
• Spot welding output voltage: 0-5V
• Output current: 50-800A
• Pulse time: 2 pulses (1-10 ms), 4 pulses (2-20 ms), 8 pulses (8-80 ms)
• Fixed head welding thickness: 0,05-0,35 mm (stainless steel, iron, nickel)
• Mobile pen welding thickness: 0,05-0,2 mm
• Soldering iron temperature range: 150°-450° C
• Soldering iron power: 50 W
• Soldering iron heating time: 6-8 s at 300° C

Use and compatibility

This machine is ideal for workshops, manufacturers and hobbyists working with rechargeable batteries, especially the popular 18650 lithium batteries. Its precision and power make it suitable for welding nickel strips and other common materials used in battery pack assembly for power tools, electric vehicles and electronic devices.

The equipment includes an HB-70B welding pen with adjustable pin spacing, soldering iron holder, foot switch, mini electric grinder and accessories to make building six-cell 18650 batteries easier.

Package contents

• 1 x 709AD+ welding machine
• 1 x HB-70B welding pen
• 1 x Foot switch
• 1 x Soldering iron with stand
• 1 x Replacement pin for pen
• 4 x Replacement needles for fixed head
• 2 x Fuse tubes
• 1 x Hex key
• 1 x Clamp for six-cell 18650 battery
• 1 x Mini electric grinder
• 100 x Nickel strips
• 1 x User manual

Benefits

• Allows high-precision, controlled welding on 18650 lithium batteries.
• Makes building large battery packs easier thanks to the mobile pen.
• Ergonomic design and auto-cooling system for extended, safe use.
• Includes all the accessories needed to get started straight away.

• Adjustable power up to 3.2 kW for different welding needs
• Two welding modes: fixed head and mobile pen for greater reach
• AC 220V input voltage, 50-800A output current
• Built-in soldering iron with adjustable temperature between 150° and 450° C
• Includes a foot switch for convenient use
• Auto-cooling system and intelligent auto-welding mode
• Complete accessories: HB-70B pen, mini grinder, 18650 battery clamp
• Ideal for building and repairing 18650 lithium batteries