4-Size Aluminum Oxide Copper Spot-Welding Needles for 18650 Handheld Spot Welders

Ensure consistent, high-conductivity battery welding with this set of Aluminum Oxide Copper Spot-Welding Needles! Designed specifically for handheld spot-welding pens and lithium-ion battery pack assembly, these high-grade electrode tips are essential for building and repairing 18650, 21700, and 26650 battery packs. Crafted from premium aluminum oxide copper (alumina copper), these needles offer exceptional electrical conductivity, high thermal resistance, and superior anti-stick properties that prevent the electrode from adhering to nickel strips during rapid spot welding. Available in four precision sizes, they deliver clean, reliable, and spark-free weld joints every time.

Key Features

• High-grade aluminum oxide copper material superior electrical conductivity and high-temperature resistance reduce electrode wear and sticking

• Anti-sticking spot welding technology formulation prevents sticking to pure nickel and nickel-plated steel strips

• 4 precision size options tailored dimensions fit a wide variety of handheld spot-welding pens and automated welding heads

• High-density thermal dissipation dissipates heat rapidly to maintain structural integrity and tip shape over thousands of welds

• Clean, consistent weld spots optimizes current concentration for strong, low-resistance connections without excessive sparking

Why Choose Our Spot-Welding Electrode Needles

Standard copper tips degrade quickly under high pulse currents, causing inconsistent welds and annoying stickage. These alumina copper needles maintain their tip geometry under intense thermal cycling, ensuring your battery pack builds have low internal resistance and rock-solid nickel connections.

Perfect For

• Building and repairing 18650, 21700, and 32650 lithium battery packs for e-bikes, power tools, and energy storage

• Handheld spot-welding pens, DIY spot welders, and industrial battery pack welding machines

• Precision metal sheet welding, electronic component fabrication, and battery tab repairs

Specifications

• Product Title: 4 Sizes Aluminum Oxide Copper Spot-Welding Needle Electrode Tips

• Material: Premium Alumina Copper (Aluminum Oxide Copper Alloy)

• Application: Handheld Spot Welder Pens & Battery Welding Equipment

• Features: Anti-Sticking, High Conductivity, Heat-Resistant, Long Wear Life

• Ideal Uses: 18650 Battery Pack Spot Welding, Nickel Strip Jointing, DIY Electronics

Build stronger, safer battery packs with professional-grade welding tips—claim your alumina copper spot-welding needles today.