HB-71B Spot Welding Pen Polymer Lithium Battery Spot Welding Machine Pen for 709A 709AD Spot Welding Machine

  Availability: In Stock
  Shipping: Free Airmail 
  Estimated Delivery: 
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  •   Shipping Methods

    Handling Time

    Before we can ship your order, we prepare your products, do strict quality-control tests and carefully package the items. The time it takes to prepare your items for shipping is separate from the delivery time. It usually takes 1-3 business days to ship out .

    Shipping Methods

    You can choose the preferred shipping method on the cart page during the checkout process. We offers 3 international shipping methods:

    1. Airmail – Free untracked economy shipping via national postal services (HK Post, Singapore Post, China Post, PostNL, Swiss Post, Sweden Post, USPS, Royal Mail e.t.c.)
    2. Airmail Registered – Tracked shipping via national postal services (HK Post, Singapore Post, China Post, PostNL, Swiss Post, Sweden Post, USPS, Royal Mail e.t.c.)
    3. Expedited Shipping – Express shipping with courier delivery (DHL, UPS, FedEx, TNT)

    Delivery Time

    Airmail and Airmail Registered Area Estimated Delivery Time
    United States, Canada 7-25 business days
    Australia, New Zealand, Singapore, United Arab Emirates 10-25 business days
    United Kingdom, France, Spain, Germany, Netherlands, Japan, Belgium, Denmark, Finland, Ireland, Norway, Portugal, Sweden, Switzerland 10-25 business days
    Italy, Brazil, Russia, South Africa 10-45 business days
    Other countries 10-35 business days
    Expedited Shipping 3-10 business days to Worldwide

    Note: If you choose an expedited shipping, please remember to leave a valid contact number, this is required for expedited shipping’s courier delivery.

  •  Returns & Refund

    Last updated October 05, 2022


    If you are not completely satisfied with your purchase for any reason, you may return it to us for a full refund within 15 days from delivery date. All returned items must be in new and unused condition, with all original tags and labels attached.

    Return Process

    To return an item, please email our customer service at sales@alexnld.com to obtain a Return Merchandise Authorization (RMA) number. After receiving a RMA number, place the item securely in its original packaging, and mail your return to the following address:

    Alex NLD
    Attn: Returns
    RMA #
    HaGiborim St 8
    Tiberias, 14388

    Please note, you will be responsible for the return shipping charges. We strongly recommend that you use a trackable method to mail your return.

    All customers should contact us and obtain Return Merchandise Authorization (RMA) number before sending anything to us. We will not be responsible for returned item(s) without notifying us in advance.


    After receiving your return and inspecting the condition of your item, we will process your refund to the credit / debit card or PayPal account which was used to place the original order.

    Please allow at least seven (7) days from the receipt of your item to process your refund. Refunds may take 1-2 billing cycles to appear on your credit card statement, depending on your credit card company. We will notify you by email when your refund has been processed.


    If an item is found damaged or defective on receipt, we kindly ask you to contact us within 15 days from the delivery date to arrange a refund or exchange without physical return of the item.

    Please provide us with following:

    1. Photos of the front and back sides of the packaging box;
    2. A photo, video or screenshot of the defective item or the defective part of the parcel.

    Our customer service team will communicate with you to arrange a refund or reshipment without physical return of the item.

    Warranty & Repair service

    If any of the items you have purchased from us is found defective within 1 year from receipt, you are entitled to a repair under warranty. Please kindly provide us with evidence photos or videos of the defective item. After providing such information to our Customer Service team  and the problem is acknowledged, you can send the items back to us for a repair.

    Note:  Please be aware, we do not cover the cost of the returns fees in  warranty & repair service.

    Order Cancellation

    If you want to cancel an order within 24 hours from confirmation of the payment, you will be entitled to a full refund. It is still possible to cancel an order after 24 hours, provided that it has not yet been shipped. If an order has been shipped, it’s impossible for us to cancel or modify it anymore. If you still want a refund, you required to return the item on it’s arrival.


    If you have any questions concerning our return policy, please contact us at:

    +972 054-536-2888


User-friendly design, easy to master one-piece welding pen with one hand, solves the method of earth that is difficult to master by split welding pen. It is slim in shape, easy to hold, easy to carry, no need to learn, no need for professional skills to be familiar and easy to use. Currently the most professional soldering pen for the market.
Solder pin spacing: 0.3cm
Welding pen and cable length: 630mm x2
Cable cross section: 18mm⊃2;
Solder pin size: Ф 1.5mm x 7mm
Maximum welding pulse current: 500A 

Instructions For Use:
1. The positive electrode of the polymer soft pack battery is caused by an aluminum sheet, but since the aluminum sheet is not resistant to breakage, it is easily broken, and it cannot be used for a long time, and it is impossible to solder or solder a nickel sheet. At present, the processing technology needs to be coated with aluminum-nickel composite sheets for aluminum alloy welding, so that aluminum-nickel sheets can replace aluminum sheets for long-term work, which brings great market and challenges to spot welding of aluminum sheets.
2. Since the aluminum sheet has a low electrical resistivity and good thermal conductivity, it is a poor soldering property in metal welding. Some users use ultrasonic welding, the strength should be guaranteed, but if the surface of the aluminum sheet has been oxidized to produce oxidation (the aluminum surface is very easy to oxidize to grayish white aluminum oxide), while the hardness and melting point of aluminum oxide are very High, ultrasonic welding often leads to more serious defects such as aluminum oxide, oxidization, blackening, denaturation, increased resistivity, and virtual soldering.
3. After the comparison test between ultrasonic welding and pulse welding by our engineers and technicians, we believe that the SUNKKO 709 spot welding machine produced by our company can achieve satisfactory results with the welding handle spot welding machine. It can adapt to the effect of the breakdown of the oxide layer at the same time by the pulse voltage in the case of the oxide film of the aluminum sheet. Of course, the aluminum sheet can not be subjected to too much tensile strength regardless of the welding method, and will not be welded to the nickel sheet and the stainless steel spot welding. The same can not be smashed by human hands, only the more sophisticated instruments can be used to detect the mechanical tensile force and the electrical conductivity after connection.

Package Included:

1 x Welding pen
1 x Pairs Small solder pin

Detail Pictures:


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