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    • SUNKKO 737G+ Battery Spot Welder Transformer Inversion Pulse Welding Machine
    • SUNKKO 737G+ Battery Spot Welder Transformer Inversion Pulse Welding Machine
    • SUNKKO 737G+ Battery Spot Welder Transformer Inversion Pulse Welding Machine
    • SUNKKO 737G+ Battery Spot Welder Transformer Inversion Pulse Welding Machine

    SUNKKO 737G+ Battery Spot Welder Transformer Inversion Pulse Welding Machine

    Regular price $189.99

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    737G+ Machine Tutorial Video

        737G+Dual Digital Display Intelligent Precision Pulse Spot Welding Machine

    Features:

    1.lt adopts microcomputer switch control technology.

    2.It adopts precise current step adjustment controlled by microchips to achieve microcomputer precision spot welding.

    3.Wider current adjustment range, single/double pulse welding mode selection, more powerful and more reliable.

    4.Press the key to set welding parameters. lt is equipped with current parameters and pulse display for more precise spot welding.

    5.The welding pressure of the welding needle can be adjusted based on the thickness of the weld part to get reliable welding points and more precise spot welding..

    6.It is suitable for welding and assembling various mobile phone batteries and notebook batteries.

    7.It is suitable for precision machining,welding,and assembly of hardware components.

    Application

    18650

    Single row 18850 battery

    Button batteries

    Pouch cell

    Nickel chip circuit board

    Portable charger

    Welding parameters 

    Power supply :AC220V±20V  

    Output power:4.3KW(Max.)

    Welding current:120~1200A

    Double pulses time:1-10ms

    4 Pulses time:2~20m

    8 Pulses time: 8~80ms

    Welding thickness:0.15~0.35mm(fixed head)

    0.05~0.2mm(welding pen)

    Mobile spot welding pen parameters

    Welding needle spacing: 2-7mm

    Total length of spot welding pen:≈580mm

    Welding pen cable area: 16mm2

    Size of welding pin:∅1.5mmX7mm

    Packing list:

    1)737G welding machine *1 set;

    2)6-section fixture *1 pc

    3)Hex wrench *1 pc

    4)Fuse tube *2 pcs

    5)Pedal switch *1 pc

    6)Welding pins for fixed head *4 pcs

    7)Nickel plated sample *100 pcs

    8)  Operation Manual*1 pc

    Notices for using SUNKKO spot welding machine

    1.In order to obtain good weld effect, please don't use the active socket,and should be used the wall socket to ensure stable power supply.

    2.Because of the instant welding large current, rated current of tripping device of the leakage protection switch should be up to 40-63A.Lower than 40A will cause tripping.

    3.Please set the pressure adjuster to the right parameter to avoid welding effect in not good.

    4.Please keep the surface of welding pins clean and wipe off oxide withsand paper.

    5.Please keep the welding pin in sharp shape.

    6.Please do not worry about the lighting in flash. Spot welder is a highpower machine and discharging highcurrent instantaneously.Because this moment is in 20ms and it is normal.

    Product Specifications
    Name Value
    颜色图案 黑色
    电源 AC 电源
    Documents
    User Manual 下载
    Specification Sheet 下载
    Safety Guide 下载
    Service & Support

    Warranty

    This product is backed by a 12-month limited warranty, covering defects in materials and workmanship under normal use.

    Technical Assistance

    Our dedicated support team is available to assist with product setup, operation guidance, and troubleshooting. Contact us via email or phone for prompt service.

    Documentation & Downloads

    Access essential resources including the user manual, technical specifications, and safety instructions in our online support center.

    Replacement Parts & Accessories

    We offer a full range of genuine replacement parts, including batteries, chargers, and compatible accessories to ensure long-term performance.

    Training & Tutorials

    Browse our library of how-to videos and maintenance tips to get the most out of your cordless drill.

    FAQs

    Find quick answers to common questions

    Product & Usage

    1. Are KRANK tools built for professional use?

    Yes, all our tools are engineered for heavy-duty performance and long-term reliability.

    2. Are KRANK tools safe to use for beginners?

    Yes, our tools are designed with safety features and easy handling in mind.

    3. Can KRANK tools be used in extreme conditions?

    Yes, they are tested to perform reliably in demanding environments.

    Maintenance & Accessories

    1. What maintenance is required for the tools?

    Regular cleaning and proper storage are usually enough to keep your tools in top condition.

    2. Can replacement parts or accessories be purchased separately?

    Yes, we provide compatible parts and add-ons to extend the life of your tools.

    3. Do you provide instruction manuals or usage guides?

    Every tool comes with a detailed user manual, and digital guides are available online.

    Warranty & Guarantee

    1. Do the tools come with a warranty?

    Every KRANK tool includes a 1-year warranty, with extended options available on select products.

    2. How do I register my KRANK tool for warranty coverage?

    You can register online using your product serial number for faster support.

    3. What does the warranty cover?

    It includes defects in materials and workmanship under normal use conditions.

    4. Is there an option to extend the warranty?

    Yes, extended warranty plans are available for select tools at checkout.

    Purchasing & Support

    1. How fast is shipping and delivery?

    Orders ship within 24 hours, and delivery typically takes 3–5 business days.

    2. Do you offer bulk or corporate purchasing options?

    Yes, KRANK provides special pricing and packages for business or team orders.

    3. How can I contact customer support if I need help?

    You can reach our support team by email or phone — we’re here to assist you.

    Can’t find your answer?

    Feel free to reach out to us!

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