Atomfair Semi-Automatic Z-type Stacking Machine
Product Information
Model: Atomfair-SAZS-724
Release Date: June 04, 2022
Version: V2.0
Application
This machine is mainly used for Z-type lamination assembly of positive and negative electrodes with separator to form lithium-ion battery cells.
Equipment Description
Dual left-right robotic arms pick electrodes from positive and negative magazines, perform precise positioning at the secondary positioning stage, then place alternately on the lamination table.
The lamination table moves reciprocally to form Z-type folding of separator between electrodes, achieving automatic electrode stack assembly.
Key Features
- Equipped with electrode magazines with real-time floating structure.
- Dual secondary positioning mechanisms for high-precision electrode alignment.
- High-speed linear servo-driven robotic arms with stable vacuum pickup, alternating lamination.
- Precise servo closed-loop separator unwinding with continuous tension adjustment and deviation correction.
- Lamination table with real-time height lifting for different cell thickness, driven by high-speed servo for stable operation.
- X-Y compound pressing and positioning for electrodes and separator.
- PLC-based control system with HMI for parameter setting, status monitoring and full automatic operation.
- Missing electrode detection function.
Technical Parameters
- Electrode dimensions: Length 50–150mm, Width 30–90mm, Thickness 0–20mm
- Tab length: ≤25mm
- Cycle time: 1.3–1.6 sec/pcs
- Electrode-separator alignment accuracy: ±0.3mm (center deviation)
- Separator alignment accuracy: ±0.2mm
- Separator tension control ensures stable lamination with minimal elongation
- Missing electrode detection
If you’re interested, have any questions, or have specific customization requirements, please feel free to contact us at inquiry@atomfair.com.
This equipment requires a clean, dry, and vibration-free environment to maintain electrode-separator alignment accuracy. The machine must be operated by trained personnel with appropriate safety protocols due to the presence of high-speed servo-driven robotic arms and electrical systems.
- Environmental and Infrastructure Requirements: The machine must be installed in a temperature and humidity controlled area to prevent electrode material degradation and ensure consistent lamination quality.
- Material Handling Constraints: Electrode magazines must be loaded with electrodes that are free from burrs, wrinkles, or contamination to avoid misalignment or damage during the stacking process.
- Operational Safety Limits: The high-speed servo-driven arms and lamination table present pinch and impact hazards, requiring interlocks and operator training to prevent injury.
- Maintenance and Calibration: Periodic calibration of the alignment sensors and tension control system is required to maintain the specified ±0.3mm electrode-separator alignment accuracy.
This procedure outlines the safe and correct sequence for setting up and running the Z-type stacking machine to produce lithium-ion battery cells. It covers pre-operation checks, material loading, automatic operation, and shutdown.
Required Equipment: PLC-based control system with HMI, Electrode magazines, Separator roll
- Pre-Operation Inspection
Inspect the machine for any loose parts, damaged cables, or foreign objects on the lamination table and robotic arms before powering on. - Power On and Initialize
Turn on the main power and the PLC control system, then initialize the HMI to the home screen and verify that all axes are at their reference positions. - Load Electrodes and Separator
Load the positive and negative electrode magazines with the appropriate electrodes, and thread the separator through the unwinding and tension control rollers according to the diagram on the machine. - Set Parameters on HMI
Enter the electrode dimensions, separator width, and stacking cycle time into the HMI, and confirm the alignment accuracy settings are within the specified tolerances. - Start Automatic Operation
Press the 'Start' button on the HMI to begin automatic stacking, and monitor the first few cycles to ensure the electrodes are picked up and placed correctly without misfeeds. - Monitor and Adjust
Observe the lamination process and use the HMI to adjust the separator tension or electrode positioning if any misalignment or misfeed is detected. - Shutdown and Cleanup
After completing the production run, stop the machine, remove any remaining electrodes and separator, and clean the lamination table and magazines to prepare for the next use.
What is the electrode-separator alignment accuracy and how does the machine achieve it?
The Atomfair-SAZS-724 achieves an electrode-separator alignment accuracy of ±0.3mm (center deviation) and separator alignment accuracy of ±0.2mm. This is accomplished through dual secondary positioning mechanisms for high-precision electrode alignment, X-Y compound pressing and positioning for electrodes and separator, and precise servo closed-loop separator unwinding with continuous tension adjustment and deviation correction.
What are the electrode dimension and tab length constraints for this Z-type stacking machine?
The machine accommodates electrode lengths of 50–150mm, widths of 30–90mm, and thicknesses of 0–20mm, with a maximum tab length of 25mm. These parameters define the physical envelope for electrode handling and must be respected to ensure proper magazine loading and lamination table operation.
How does the lamination table handle varying cell thickness during stacking?
The lamination table features real-time height lifting driven by a high-speed servo, allowing it to adjust for different cell thicknesses as the stack grows. This ensures consistent electrode compression and alignment throughout the Z-type folding process, maintaining the specified ±0.3mm alignment accuracy even as the stack height increases.
The Atomfair-SAZS-724 semi-automatic Z-type stacking machine integrates dual robotic arms, servo-driven lamination, and closed-loop separator tension control to achieve ±0.3 mm electrode-separator alignment, making it suitable for high-precision lithium-ion cell assembly in R&D and pilot production.
Positive
- High-precision alignment: Dual secondary positioning mechanisms and X-Y compound pressing deliver ±0.3 mm center deviation for electrodes and ±0.2 mm for separator, ensuring consistent cell stacking quality.
- Closed-loop tension control: Servo-driven unwinding with continuous tension adjustment and deviation correction minimizes separator elongation, reducing the risk of wrinkling or misalignment during Z-folding.
Trade-offs
- Limited electrode size range: The machine only accommodates electrodes with lengths of 50–150 mm, widths of 30–90 mm, and thicknesses up to 20 mm, restricting its use to small-format cells and excluding larger-format battery designs.
- Semi-automatic operation: The system requires manual magazine loading and operator intervention for electrode replenishment, which may reduce throughput and increase labor dependency compared to fully automated stacking lines.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
