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21700 Power Battery Assembly Line – Digital Spot Welder for Energy Storage Systems
SAWA-QZ-2023 Digital Spot Welder – purpose-built for 21700 power battery energy storage assembly lines. Supports single/double-sided welding with 1000mm Z-axis stroke, delivering up to 3,000 cells/hour for high-volume lithium battery module production.
| Item | Description |
|---|---|
| Customization | Yes |
| Model | SAWA-QZ-2023 |
| Type | Digital |
| Function | Z-axis stroke standard 1000mm |
| Welding Method | Supports single-sided or double-sided spot welding |
| Efficiency | 3000 pcs/H（5S2P: 300/H） |
| Size | 1200*200 cm |
Product Overview
SAWA-QZ-2023 Digital Spot Welder – Assembly Solution for 21700 Power Battery Energy Storage
The SAWA-QZ-2023 is a fully automatic digital spot welding system specifically developed for 21700 cylindrical cell energy storage assembly. Equipped with advanced digital control technology, it delivers precise welding parameter adjustments, making it ideal for power battery modules, energy storage battery packs, and lithium battery PACK production lines.
Process Description
| Step | Process Stage | Description |
|---|---|---|
| 1 | Cell Tray Loading | Load full trays of 21700 cells onto the feeding line |
| 2 | Cells Placed onto Feeding Conveyor | Transfer cells from trays to the main conveyor system |
| 3 | Automatic Cell Sorting | Sort cells automatically based on voltage/internal resistance parameters |
| 4 | Automatic Grading | Classify cells into grades according to preset requirements |
| 5 | Automatic Loading into Holders | Load graded cells into battery holders/plastic frames automatically |
| 6 | Automatic Cover Assembly | Attach top covers to the holders automatically |
| 7 | Automatic Flow-Out for Manual Nickel Strip Assembly | Parts flow out for manual assembly of nickel strips onto the holders |
| 8 | Automatic Spot Welding | Perform automatic spot welding on the assembled nickel strips |
| 9 | Weld Inspection | Inspect weld quality (visual or automated inspection) |
| 10 | Manual PCB Installation + Automatic Screw Tightening | Manually install PCB boards; screws are tightened automatically |
| 11 | Automatic Soldering | Perform automatic soldering of PCB connections |
| 12 | Solder Joint Inspection | Inspect soldering quality |
| 13 | Housing Assembly | Assemble the outer housing/casing |
| 14 | Automatic Housing Screw Tightening | Tighten housing screws automatically |
| 15 | Finished Product Comprehensive Test | Conduct full functional and safety testing on completed products |
| 16 | Laser Marking | Laser-engrave product labels/barcodes/QR codes |
| 17 | Packaging | Pack finished products for shipment |
Key Advantages
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Extended Z-Axis Stroke: Standard 1000mm Z-axis stroke accommodates a wide range of battery module sizes, enabling welding of various workpiece heights without frequent changeovers.
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Flexible Welding Modes: Supports both single-sided and double-sided spot welding, allowing quick switching between different process requirements – from cell tab connection to busbar welding in modules.
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High-Throughput Production: Achieves a standard efficiency of 3,000 cells/hour; under 5S2P (5-series 2-parallel) module configuration, it delivers 300 modules/hour, significantly improving line cycle time.
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Digital Intelligent Control: The digital control system enables precise parameter setting and storage, ensuring consistent weld quality and low defect rates across all production runs.
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Customization Support: The system supports tailored configurations to match specific cell specifications, module structures, and capacity requirements, offering flexible solutions for diverse production needs.
The SAWA-QZ-2023 is committed to providing energy storage battery manufacturers with a high-efficiency, stable, and flexible spot welding solution – an indispensable core equipment for 21700 power battery assembly lines. Multiple universal models can be flexibly switched, enabling quick and convenient equipment operation; the entire production line significantly reduces labor costs while effectively ensuring battery pack quality stability and guaranteed output volume.
Why Choose US？
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Deep Expertise in Lithium Battery Equipment
With years of dedicated R&D and manufacturing in lithium battery assembly and energy storage systems, we thoroughly understand the process challenges of 21700 cells and power battery modules – our solutions are built to address real production needs. -
Reliable Performance & Consistent Quality
Our digital control system combined with precision mechanical construction ensures uniform weld quality with low contact resistance, guaranteeing long-term safety and cycle life of battery modules. -
Flexible Customization & Fast Response
We offer tailored configurations based on your cell specifications, module layouts, and production rhythm – providing full-process support from solution design to after-sales service. -
On-Time Delivery & Ongoing Support
Backed by a mature supply chain and extensive project experience, we ensure timely equipment delivery, comprehensive technical training, and responsive maintenance services – giving you complete peace of mind. -
Exceptional Cost-Performance Ratio
We deliver high performance and reliability at competitive pricing, helping you upgrade production capacity with optimal investment.
Product Attributes
| Item | Description |
|---|---|
| Customization | Yes |
| Model | SAWA-QZ-2023 |
| Type | Digital |
| Function | Z-axis stroke standard 1000mm |
| Welding Method | Supports single-sided or double-sided spot welding |
| Efficiency | 3000 pcs/H（5S2P: 300/H） |
| Size | 1200*200 cm |
