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Spot welding is a critical process in many manufacturing and repair applications, offering a strong, localized weld without the need for filler material. Selecting the right spot welding equipment ensures efficiency, precision, and the durability of your projects. Investing in quality tools can prevent rework and enhance the overall integrity of your finished products.
Two types of Trigger Flexibility & Safety: Seamlessly switch between hands-free foot pedal operation and precise hand control (Trigger) for versatile workflows and enhanced safety when handling sensitive batteries.
Intelligent Thermal Protection: Built-in safety monitors battery temperature (Cont), automatically halting welding (Trigger disable) and alerting you if overheating is detected, preventing damage. If there is no operation for 8 minutes, the spot welder...
Ultra-Low Power Consumption: Engineered for exceptional energy efficiency , significantly extending standby time between uses and reducing operational costs. Precision 100-Level Power Control: Fine-tune welding strength for delicate tasks (like...
Multi-Mode Welding for Diverse Batteries: Expertly weld cylindrical power batteries, mobile phone batteries, and Button batteries (Mode) with tailored settings accessible via the clear control panel.
Simple Rotary Knob Operation & Clear Interface: Effortlessly adjust settings (Gear, Trigger Time, Mode, Number of continuous spot welds) using the large rotary knob and clearly labeled control panel for ultimate user-friendliness.
Generous Gift Package: Our package includes a UK1 spot welder, a pair of spot welding pens, a foot switch, a roll of nickel-plated sheet metal, a charging cable, and a piece of gauze. Everything you need is included. Once you receive the package, simply...
5 Minute Quick Start Spot Welder: We use a wide voltage input of 100-240V and an adapter of 15amp high current for fast charging Connect the spot welding machine to the power supply using our adapter, and quickly reach the spot welding mark within...
3-in-1 Mode: Our spot welder has an automatic mode and a manual mode, as well as a foot pedal mode. The automatic mode is where you adjust to the proper setting, insert the spot welder and start working immediately. Manual mode is to adjust to the manual...
Wide Application Range: A well made, compact spot welder. Not only for battery pack work, such as cylindrical batteries such as 18650/14500/21700, but even LiFePO4 batteries, industrial batteries, etc. And it can also be used for spot welding of different...
Professional Battery Spot Welder: Equipped with built-in super energy storage capacitors, Ultra capacitors have many thoughts of cycle life, and the maximum pulse welding power can reach 10KW. It is a brand new MOS, with no interference to the circuit or...
Product design: The exterior design is rounded with no corners, so it won't hurt when a body part touches it. The shell is made of aluminum alloy, comfortable to the touch, beautiful appearance, not easy to scratch, but also has a flame-retardant nature...
Spot Welder Spot Welding Pen: Our spot welder with a spot welding pen, the pen can be removed to replace the tip, spot welding pen handle with a specific output button, manual mode can use this button, very convenient, spot welding pen length of 40cm, at...
Exquisite Packaging and Matching: We include a UF20 spot welding machine, a charger cable, a foot pedal (2m long), a pair spot welder pen, a roll of 2-meter nickel plated sheet, a file, and a manual. Matching to meet the needs of spot welding, you can...
【Upgraded Version】This upgraded spot welder has stronger welding performance, with firmer and more beautiful welds; It has a maximum power of 10KW and a peak current of 2000A, ensuring stable and efficient welding
【Multi-Scene Application】Ideal for battery assembly, maintenance and DIY enthusiasts, it fits power tool, electric vehicle, aircraft model battery pack DIY/repair, and thin metal welding (aluminum/copper are not recommended due to high welding...
【999 Precision Gears】With 999 gear settings, users can choose the optimal gear according to material type and thickness to optimize welding effect; This precise adjustment avoids issues like weak welds or burn-through
【Continuous Welding】Supports continuous welding function, ideal for thicker materials; Set continuous welding times (max 3 times) to trigger multiple welds with one contact
【Multiple Safety Protections】Built-in over-temperature, over-voltage and over-current protection to ensure safe and reliable use for users at all skill levels; And these protection mechanisms effectively avoid equipment damage
【Color Screen Display】Equipped with a color screen, it real-time monitors voltage, device temperature and current; The intuitive display makes parameter setting simple and convenient
【NOVICE Operation Tips】① Test weld first, fine-tune gear/preheating time for full fusion without burn-through; ② Charge to at least 4.8V before use; ③ If the effect is poor, wait for the device voltage to rise
【Two Operation Modes】It has two operation modes: Auto mode (adjustable delay triggers welding automatically) and Manual mode (welding triggers immediately by stepping on the foot pedal)
Fully Cordless: Say goodbye to tangled power cords—grab this spot welder and work anytime, anywhere; Note: For optimal performance, fully charge it to 100% before first use; If the product is left unused, please charge it monthly to preserve battery...
Strong Welding Capacity: With a maximum output power of 3360W, the mini spot welder stands out among handheld models; tested to weld nickel-plated sheets up to 0.2mm thick or pure nickel sheets up to 0.15mm thick (Welding quality closely links to battery...
Visual Display Screen: An intuitive display greatly boosts convenience, letting you monitor the welding process, device temperature, and remaining battery at all times
Precise Gear Adjustment: With 99 fine-adjustment gears available, the spot welding equipment perfectly meets your diverse welding needs for different materials and thicknesses
Auto/Manual Dual Modes: Choose freely between auto welding and manual trigger welding based on your needs—adapts to various scenarios for greater convenience
Handheld Design: No more restrictive cables between the main unit and welding pen, letting you operate freely; close the pen cover to prevent accidental touches and enjoy better portability
Wide Application: Ideal for DIY battery pack enthusiasts, battery repair, and outdoor portable work; The battery spot welder kit is compatible with cylindrical batteries, phone batteries, button batteries, etc
Easy Welding Pen Removal & Low Standby Power: Use tweezers to directly unscrew the two welding pens for easy replacement; advanced tech reduces standby power consumption to extend working time
5 Minute Quick Start Spot Welder: We use a wide voltage input of 100-240V and an adapter of 15amp high current for fast charging Connect the spot welding machine to the power supply using our adapter, and quickly reach the spot welding mark within...
2 IN 1Mode: Our spot welding machine has automatic mode and foot pedal mode. The automatic mode is adjusted to the appropriate gear, and the spot welding pen can be inserted to start working immediately. Foot pedal mode, It is so much easier to position...
Wide Application Range: A well made, compact spot welder. Not only for battery pack work, such as cylindrical batteries such as 18650/14500/21700, but even LiFePO4 batteries, industrial batteries, etc. And it can also be used for spot welding of different...
Professional Battery Spot Welder: Equipped with 2 built-in super energy storage capacitors, Ultra capacitors have many thoughts of cycle life, and the maximum pulse welding power can reach 14.6KW. It is a brand new MOS, with no interference to the circuit...
Random Bending Spot welding Pen Lead: The lead is very soft and can be bent freely without dragging the spot welding machine. The lead wire is 60 centimeters long, very suitable for our operation. The lead pins can be disassembled and replaced, and we...
Exquisite Packaging and Matching: We include a P20B spot welding machine, a 15A charger, a foot pedal (2m long), 3 pairs of replacement pins, a roll of 5-meter nickel plated sheet (thickness 0.15), an 18650 battery holder, a file, and a manual. Matching...
Three types of Trigger Flexibility & Safety: Automatic mode automatically outputs without the need for foot pedals or buttons on the spot welding pen. Seamlessly switch between hands-free foot pedal operation and precise hand control (Trigger) for...
Multi-Mode Welding for Diverse Batteries: The battery has a large capacity of 10000mAh and can be spot welded over 300 times in the highest gear. Expertly weld cylindrical power batteries, mobile phone batteries, and Button batteries (Mode) with tailored...
Ultra-Low Power Consumption: Engineered for exceptional energy efficiency , significantly extending standby time between uses and reducing operational costs. Precision 100-Level Power Control: Fine-tune welding strength for delicate tasks (like...
Intelligent Thermal Protection: Built-in safety monitors battery temperature (Cont), automatically halting welding (Trigger disable) and alerting you if overheating is detected, preventing damage. If there is no operation for 8 minutes, the spot welder...
Simple Rotary Knob Operation & Clear Interface: Effortlessly adjust settings (Gear, Trigger Time, Mode, Number of continuous spot welds) using the large rotary knob and clearly labeled control panel for ultimate user-friendliness.
Generous Gift Package: Our package includes a UK3 spot welder, a pair of spot welding pens, a foot switch, a roll of nickel-plated sheet metal, a charging cable, and a piece of gauze. Everything you need is included. Once you receive the package, simply...
🚀【8000W Battery Spot Welder】:The upgraded spot welder with Dual Pulse Output, foot pedal welding mode which can easily weld 0.1-0.3mm thick nickel sheets, you can finish the welding work easily and efficiently, the welding spot is nice and elegant...
🔋【1-9 Level Knob Adjustment】:The adjustable spot welder can weld thousands of points continuously on nickel sheet after full charge,the solder pins of the adjustable spot welding machine can be removed and replaced, easy installation and...
🚀【Easy to Use】:The solder pins of the adjustable spot welding machine can be removed and replaced, easy installation and operation.The DIY battery spot welder machine is foot switch controls welding, spot welding is more arbitrary. Just press the...
💌【Warm Tips for Beginner】: LCD Screen Display,The battery voltage level is the key factor affecting the spot welding effect.Our spot welder screen can display the internal voltage of the product in real time,it is very convenient for you to check...
📞【Wide Application & Warranty】 The spot welder with large output power can be used to connect nickel strips of 18650 lithium battery, or spot welding iron sheets, stainless steel sheets. And it is also suitable for welding 0.1-0.15mm nickel plated...
Wireless, Portable Design: Built-in battery supports cordless operation and easy portability, eliminating cable constraints and enabling flexible use anytime, anywhere
Visual Display Screen: Real-time voltage, gear settings and welding mode are clearly displayed, simplifying operation steps and ensuring accurate adjustments for stable welding effects
80 Adjustable Gears: Realizes refined welding power regulation, adapting to nickel sheets of different thicknesses with a maximum welding thickness of 0.2mm for nickel-plated sheets and 0.15mm for pure nickel sheets, meeting diverse welding requirements
Reusable Cleaning File: Equipped with a reusable file to remove carbon deposits on the welding tip, maintaining stable welding performance and extending the tip's service life
Durable Aluminum Shell: Boasts a sturdy aluminum shell that enhances texture and durability, resisting wear and tear for long-term reliable use
Dual Operation Modes: Freely switch between auto and manual modes on this spot welder for lithium batteries, enabling flexible operation to fit different welding demands; suits battery DIY enthusiasts, technicians and professionals in workshops or garages
Overheat Protection Function: Features overheat protection that automatically stops welding when the device temperature exceeds 65℃, ensuring safe and reliable use
Multi-Scene Application: Perfect for battery assembly, maintenance and DIY projects; Great for DIY and repair of power tool, electric vehicle and drone battery packs, as well as thin metal welding (Note: Aluminum and copper are not recommended due to high...
【Upgraded Battery Spot Welder】Delivers a peak output power of 10KW; It enables solid welding for nickel-plated sheets under 0.3mm and pure nickel sheets under 0.15mm in thickness
【10000mAh Rechargeable Battery】Built-in ultra-large capacity battery; According to official test data, it can support more than 300 welding times when fully charged and set to gear 25 (Note: For optimal performance, fully charge it to 100% before...
【Multi-Scene Application】Perfect for battery assembly, maintenance and DIY projects; Great for DIY and repair of power tool, electric vehicle and drone battery packs, as well as thin metal welding (Note: Aluminum and copper are not recommended due to...
【Clear Parameter Display】Color screen displays real-time voltage and other parameters for easier operation (Note: Welding quality is closely tied to the voltage level; Higher voltage brings better welding performance and firmer welds; Please charge...
【Compact Design】Compact overall size with the longest side approx 6.5 inches, lightweight and portable; A powerful yet compact battery repair station
【Flexible Adjustment】25 power levels available for precise adjustment to match different nickel strip thicknesses; It is recommended to perform a test weld first before formal operation, aiming for full nugget formation with no spatter and no...
【Clear User Guidance】With years of expertise in spot welder products, SEESII offers detailed instructions and professional guidance to let you use it with complete peace of mind
【Dual Operation Modes】Choose freely between automatic welding and foot pedal control; In automatic mode, welding is triggered when the welding pen touches the nickel strip, with no foot pedal needed
Last update on 2026-07-16 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Spot Welding Equipment
Understanding Spot Welding Technologies
Spot welding equipment primarily falls into two categories: resistance spot welders and capacitor discharge (CD) spot welders. Resistance spot welders use electrical resistance and pressure to create a weld, suitable for thicker materials like steel. CD spot welders store energy in capacitors and discharge it rapidly, making them ideal for thinner materials, precise work, and preventing heat distortion, often used for battery tabs and fine electronics.
Key Features to Consider
Power Output (Amperage/Voltage): Higher amperage generally means the ability to weld thicker materials or achieve stronger bonds. Ensure the power output matches the thickness and type of metal you intend to work with.
Duty Cycle: This indicates how long the welder can operate continuously before needing to cool down. For production environments, a higher duty cycle is crucial.
Adjustability: Look for controls that allow for precise adjustments of weld time, pressure, and power. This is vital for achieving consistent results across different materials and thicknesses.
Portability and Ergonomics: If you need to move the equipment around a workshop or site, consider its weight, size, and the design of the welding gun or electrodes for comfortable handling.
Material Compatibility
The type of metal you are joining is a primary factor in selecting the appropriate equipment. Steel, stainless steel, aluminum, and copper alloys all have different conductivity and melting points. Resistance welders are versatile for many metals, while CD welders excel with conductive materials like copper and aluminum, especially in thin sheets or foils where heat control is paramount.
Safety and Maintenance
Always prioritize safety features such as proper insulation, integrated cooling systems, and emergency stop functions. Regular maintenance, including cleaning electrodes and checking electrical connections, will prolong the lifespan of your equipment and ensure optimal performance.
Frequently Asked Questions
What is the difference between AC and DC spot welders?
AC (Alternating Current) spot welders use a transformer to deliver AC power, which is common for general-purpose welding of steel. DC (Direct Current) spot welders, often capacitor discharge types, provide a more controlled and concentrated energy pulse, making them better for thinner metals and preventing damage.
How do I determine the correct amperage for my needs?
The required amperage depends on the thickness and type of metal being welded. Consult the equipment's specifications or welding charts that correlate metal thickness to the necessary amperage for a strong, quality weld.
Can spot welders be used for aluminum?
Yes, but aluminum requires higher amperage and precise heat control due to its excellent conductivity and lower melting point. Capacitor discharge spot welders are often preferred for welding aluminum, especially in thin forms.
What is a 'duty cycle' in spot welding?
Duty cycle refers to the percentage of time a welding machine can operate within a 10-minute period at a given amperage without overheating. A higher duty cycle is essential for continuous or high-volume welding tasks.
Are spot welders suitable for automotive repair?
Yes, many spot welders are designed for automotive repair, particularly for body panel work and frame repairs. Choosing a welder with adjustable settings and sufficient power is key for achieving OEM-quality welds.
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