64-Pack 3mm Alumina Copper Spot Welding Needles – Battery Nickel Strip
64-Pack 3mm Alumina Copper Spot Welding Needles – Battery Nickel Strip
64-Pack Alumina Copper Spot Welding Needles – 3mm Eccentric Rod Electrodes
Upgrade your battery spot welding setup with this value pack of 64 alumina copper welding needles. Engineered for precision spot welding of nickel strips and nickel-plated steel sheets, these 3mm electrodes deliver clean, consistent weld points every time — no electrode sticking, no sparking, no discoloration at the weld site.
Whether you're assembling Ni-MH, Ni-Cd, polymer lithium, or other battery packs, these welding pins are the reliable consumable your spot welder demands.
Key Features
- Anti-Stick Design: Minimises electrode sticking for smooth, uninterrupted workflow
- Clean Weld Points: Produces aesthetically neat welds — no yellowing or discolouration at the joint
- Spark-Free Performance: Eliminates unwanted sparking during the welding process
- Excellent Conductivity: Alumina copper material offers superior electrical and thermal conductivity
- Virtual Weld Prevention: Consistent contact ensures solid, secure welds every time
- Good Thermal Stability: Maintains performance under repeated high-temperature welding cycles
Specifications
| Material | Alumina Copper (Aluminum Oxide Copper) |
| Colour | Copper |
| Diameter | 3mm |
| Length | 40mm |
| Rod Type | Eccentric (offset) rod |
| Pack Quantity | 64 welding needles |
| Country of Origin | Made in Mainland China |
Applications
Designed for spot welding between:
- Pure nickel strips
- Nickel-plated steel sheets
- Coated steel strips
- Battery connectors, cores, and lead-out sheets in Ni-MH, Ni-Cd, polymer lithium, and lithium battery production
Package Contents
- 64 × Alumina Copper Welding Needles (3mm diameter, 40mm length)
Note: Due to lighting and display variation, colours in images may appear slightly different from the actual product. Measurement tolerance is ±1–3mm.
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Frequently Asked Questions
Q: What material are these welding needles made from?
A: These welding needles are manufactured from alumina copper (aluminum oxide copper), a material prized for its excellent electrical conductivity, thermal conductivity, and thermal stability — making it ideal for repeated battery spot welding applications.
Q: What diameter and length are the welding needles?
A: Each welding needle measures 3mm in diameter and 40mm in length with an eccentric (offset) rod design, compatible with standard spot welding machines and welding pens used in battery production.
Q: What types of batteries are these welding needles suitable for?
A: These alumina copper spot welding needles are suitable for use in the production of Ni-MH batteries, Ni-Cd batteries, polymer batteries, and lithium batteries — anywhere nickel strip or nickel-plated steel sheet spot welding is required.
Q: How many welding needles are included in this pack?
A: This pack contains 64 welding needles, providing an ample supply for extended production runs or workshop use.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.