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Large Cylindrical Tabless Battery Jelly Roll Flattening Machine
Brand:
TOBitem no.:
TOB-GRP50320order(moq):
1Payment:
L/C,T/Tproduct origin:
Chinashipping port:
XIAMEN
Large Cylindrical Tabless Battery Jelly Roll Flattening Machine for Lithium-Ion Power Cell Manufacturing
Specifications
Product Introduction
The TOB-GRP50320 Large Cylindrical Tabless Battery Jelly Roll Flattening Machine is designed for precision flattening and forming of current collectors in tabless (full-tab design) cylindrical lithium-ion power cells.
By integrating servo-driven rotary flattening,ultrasonic-assisted forming, and controlled axial compression, the machine ensures flat cell end faces, uniform current-collector geometry, and high process consistency before welding and assembly.
This equipment is widely applied in tabless cylindrical power battery production lines, where electrical performance, structural stability, and manufacturing yield are critical.
Product Description
This machine is specifically developed for jelly roll flattening and current-collector forming in large cylindrical tabless lithium-ion batteries. During operation, the jelly roll is manually placed into the fixture and automatically clamped. Dual-side servo-controlled flattening heads rotate synchronously to evenly form the tabless current collectors while maintaining stable axial positioning.
An ultrasonic-assisted forming mechanism works in coordination with the rotary flattening heads, enabling slow and controlled feeding during compression. This process minimizes mechanical stress and ensures flat, uniform end surfaces, which is essential for reliable laser welding and electrical contact in tabless cylindrical cells.
The machine integrates dust extraction and in-process HI-POT insulation testing, allowing real-time quality control during the flattening process. Once the preset forming length is reached, the jelly roll is automatically transferred by a robotic handler to the downstream conveyor line.
This equipment is suitable for both pilot lines and mass production of tabless cylindrical power cells, offering high stability and consistent output.
Working Process
● Jelly roll loading
● Jelly roll positioning
● Dual-end servo rotary flattening of tabless current collectors
● Automatic station change
● Robotic unloading to conveyor line
● HI-POT insulation testing
● Manual collection
Main Components
● Drive System
Two servo-driven transmission units with synchronous belt mechanisms ensure precise and stable rotary motion.
● Positioning System
A dedicated positioning module consisting of pneumatic cylinders and positioning sensors provides accurate jelly roll alignment.
● Flattening Heads
Two servo rotary flattening heads with synchronized transmission, motor modules, and positioning sensors, specifically designed for tabless current-collector forming.
● Electrical Control System
PLC-based control architecture with touchscreen HMI, detection sensors, relays, buttons, and safety interlocks.
● Machine Structure
Frame: structural steel square tubing
Platform: structural steel plate with nickel or chrome plating
Enclosure: aluminum alloy frame with transparent PVC panels
Technical Specifications
| Product yield rate | ≥99%(Scrap caused only by equipment-related factors) |
| Capacity / Speed (single machine) | ≥2 PPM(Depending on material and process conditions) |
| Equipment uptime | ≥95%(Downtime caused only by equipment faults) |
| Power supply | AC 220V, 50Hz |
| Voltage fluctuation | ≤ ±10% |
| Installed power | 2 kW |
| Air supply requirement | ≥0.6 MPa (provided by customer) |
| Compressed air | Pressure: 0.5–0.7 MPa |
| Consumption | Approx. 100 L/min |
| Design standard | Ergonomic operation and maintenance |
| Construction materials: | Aluminum alloy, stainless steel, or corrosion-resistant electroplated components |
Key Advantages (Tabless-Focused)
● Purpose-built for large cylindrical tabless lithium-ion batteries
● Servo-controlled dual-end rotary flattening for uniform current-collector forming
● Ultrasonic-assisted process improves end-face flatness and consistency
● Integrated dust collection and HI-POT testing
● High yield and stable operation suitable for automated production lines
● Supports scalable tabless battery manufacturing from pilot to mass production
Applications
● Tabless cylindrical lithium-ion power battery production lines
● EV and hybrid vehicle battery cell manufacturing
● Energy storage system (ESS) battery production
● Advanced cylindrical cell R&D and pilot lines
Product Display
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Before Flattening |
After Flattening |
Explore more cylindrical battery R&D and manufacturing equipment
Email :tob.amy@tobmachine.com
Phone number :+86 181 2071 5609
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