Atomfair Semi-Automatic Cylindrical Winding Machine
Product Information
Model: Atomfair-SACW-297
Release Date: March 09, 2022
Version: V2.0
Dimensions: 1660L × 1300W × 1570H mm
Weight: 800KG
Application
This machine is mainly used for precision winding of cylindrical lithium-ion battery cells.
Product Description
Operators manually feed positive and negative electrodes into the winding section, which are then interleaved with separator and wound automatically. The machine completes termination tape application and cell discharge.
Key Features
- Single winding needle structure with interchangeable needle diameters.
- Manual electrode feeding, automatic winding, needle change, tape application and cell unloading.
- Precise and stable termination tape application without stretching cells.
- Variable angular speed winding ensures constant tension and consistent cell quality.
- Dual active separator unwinding with encoder tension detection and PLC closed-loop control.
- Auxiliary air cylinder tension control for smooth and stable adjustment during winding.
- Integrated dust removal system for electrodes.
- Finished cells free of damage, core extraction or misalignment.
- Production counting function.
- Stable performance, reliable control and user-friendly operation.
Technical Parameters
- Winding type: Separator roll & sheet electrode
- Winding needle: Opposite-penetration type, standard diameter 3.5mm
- Cell size: Diameter 17–32mm, Length 25–70mm
- Winding precision: Alignment ≤ 0.5mm
- Guide slot length: 1200mm
- Separator cutting: Automatic cutting
- Winding speed: Max 300 r/min (adjustable via touch screen)
- Max separator roll diameter: 250mm
- Power supply: 1KW
- Air pressure: 0.5–0.7 MPa
If you’re interested, have any questions, or have specific customization requirements, please feel free to contact us at inquiry@atomfair.com.
This machine requires a compressed air supply of 0.5–0.7 MPa and a 1 kW power source. The winding needle is a standard 3.5 mm diameter, and the machine is designed for cells with a diameter of 17–32 mm and length of 25–70 mm.
- Air Pressure Requirement: The machine requires a compressed air supply of 0.5–0.7 MPa for auxiliary tension control and other pneumatic systems.
- Power Supply Requirement: The machine requires a 1 kW power supply for its electrical systems and PLC control.
- Needle Diameter Constraint: The standard winding needle has a diameter of 3.5 mm, which must be matched to the cell's inner diameter.
- Cell Dimension Constraint: The machine is designed to wind cells with a diameter of 17–32 mm and a length of 25–70 mm.
This procedure covers the manual feeding and automatic winding process for cylindrical lithium-ion cells. It includes steps for setup, operation, and monitoring to ensure consistent cell quality.
Required Equipment: Atomfair-SACW-297 winding machine, Positive and negative electrodes, Separator rolls
- Prepare the machine
Verify that the air pressure is set to 0.5–0.7 MPa and the power supply is connected. - Load the electrodes
Manually feed the positive and negative electrodes into the winding section, ensuring they are aligned with the separator. - Set the winding parameters
Use the touch screen to set the winding speed (up to 300 r/min) and other parameters such as cell length and diameter. - Start the winding cycle
Initiate the automatic winding cycle; the machine will interleave the separator and wind the cell, applying termination tape and discharging the finished cell. - Monitor the process
Observe the winding process to ensure constant tension and that the finished cells are free of damage or misalignment.
What is the maximum winding speed and how does the machine maintain constant tension during cylindrical battery cell winding?
The maximum winding speed is 300 r/min, adjustable via the touch screen. Constant tension is maintained through variable angular speed winding combined with dual active separator unwinding, encoder tension detection, and PLC closed-loop control, with auxiliary air cylinder tension control for smooth adjustment.
What cell sizes and winding precision can the Atomfair-SACW-297 handle?
The machine winds cylindrical cells with a diameter of 17–32 mm and a length of 25–70 mm, achieving a winding precision of alignment ≤ 0.5 mm. It uses an opposite-penetration winding needle with a standard diameter of 3.5 mm, and the guide slot length is 1200 mm.
What are the utility and installation requirements for operating this semi-automatic winding machine?
The machine requires a 1 kW power supply and compressed air at 0.5–0.7 MPa. It has a footprint of 1660L × 1300W × 1570H mm and weighs 800 kg, so adequate floor space and air supply infrastructure are necessary for installation.
The Atomfair-SACW-297 semi-automatic cylindrical winding machine is engineered for precision winding of cylindrical lithium-ion cells, featuring a single winding needle with interchangeable diameters, dual active separator unwinding with encoder tension detection, and PLC closed-loop control to maintain constant tension and consistent cell quality. Its integrated dust removal and automatic termination tape application support clean, damage-free cell production, while the variable angular speed winding and adjustable speed up to 300 r/min offer operational flexibility for cell diameters 17–32 mm and lengths 25–70 mm.
Positive
- Precision winding with constant tension: Variable angular speed winding and PLC closed-loop tension control ensure consistent cell quality and alignment ≤0.5mm, critical for high-performance cylindrical cells.
- Integrated dust removal and tape application: The built-in electrode dust removal system and automatic termination tape application reduce contamination and manual handling, supporting clean, damage-free cell production.
Trade-offs
- Semi-automatic manual electrode feeding: Operators must manually feed positive and negative electrodes, which limits throughput and introduces potential variability in production rate and operator-dependent consistency.
- Requires compressed air supply: The machine needs a compressed air supply of 0.5–0.7 MPa for auxiliary tension control and other pneumatic functions, requiring appropriate laboratory or production infrastructure.
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).
