Automatic Laboratory Unwind Rewind Machine and Unwind Rewind Device for Battery Electrodes Optical Films and Functional Materials

Product Overview

This automatic laboratory unwind rewind machine is designed for controlled rewinding and slitting of roll materials. An independent automatic control system manages both unwinding and winding, while servo-driven tension control supports stable material handling throughout continuous operation. The split unwind and rewind structure provides a practical layout for laboratory and pilot-scale processing.

The equipment is suitable for lithium-ion battery electrode rolling when matched with a hydraulic two-roll press. It also supports rewinding and slitting of optical films, functional films, and other flexible web materials. The combination of automatic tension regulation, optical web guiding, and precise winding helps laboratories improve roll alignment, material consistency, and process repeatability.

Separate electrical control, adjustable operating parameters, and compatibility with connected processing equipment make this unit appropriate for demanding research environments. Its compact component dimensions, continuous web transport, and stable mechanical operation support repeated trials without relying on manual tension adjustments.

Key Features

• Servo Automatic Tension Control: Servo systems control tension during both unwinding and winding, supporting consistent web handling across the working process. The adjustable tension range is 0 to 50 N.

• Automatic Optical Web Guiding: Both sections include photoelectric automatic edge alignment. This helps maintain orderly winding and improves the finished roll's alignment and appearance.

• Independent Electrical Control System: The equipment includes its own electrical control system, allowing the unwind and rewind functions to be managed as an independent processing unit.

• Split Unwind and Rewind Structure: The unwind and rewind sections are physically separated, providing flexible installation and easier arrangement around upstream or downstream laboratory equipment.

• Lithium Battery Process Compatibility: The system can be matched with a hydraulic two-roll press for lithium-ion battery positive and negative electrode rolling, supporting electrode development workflows.

• Continuous Web Transport: Continuous running supports stable movement of roll materials through repeated laboratory and pilot-scale processing cycles.

• Controlled Winding Precision: Winding accuracy reaches ±0.5 mm, helping produce neatly aligned rolls for subsequent handling, storage, or process evaluation.

• Compact Laboratory Configuration: The separate sections provide defined installation footprints while preserving the functions needed for automatic roll-to-roll processing.

• Flexible Power Configuration: Standard power is single-phase 220 VAC ±10%, with 110 VAC available as a customization option. The 50 Hz/60 Hz frequency range supports different laboratory power environments.

Applications

Technical Specifications

The servo tension architecture is central to the unit's operating performance. Rather than depending on manual adjustments alone, the system regulates tension at both the material input and output stages. This is particularly important when processing battery electrodes and films that may be affected by unstable pulling force, uneven transport, or inconsistent winding conditions.

The optical guiding function provides a second layer of process control. Photoelectric edge detection helps the equipment correct web position during operation, improving the alignment of the wound material. With winding accuracy specified at ±0.5 mm, the unit is suited to applications where neatly formed rolls and repeatable positioning are important for downstream processing.

The maximum mechanical speed is 6 m/min, giving laboratories a controlled operating range for method development and small-scale production trials. Continuous running supports uninterrupted web movement, while the 350 mm guide roller width defines the supported working span for compatible roll materials. These parameters allow users to evaluate process behavior under consistent, measurable conditions.

The split configuration also supports practical equipment integration. The unwind and rewind sections can be positioned around a hydraulic two-roll press, enabling a connected workflow for lithium-ion battery electrode rolling. The separate footprints should be incorporated into the laboratory layout as specified: the unwind section requires 450 mm × 850 mm × 615 mm, while the rewind section requires 650 mm × 850 mm × 615 mm.

An independent electrical control system simplifies deployment as a self-contained laboratory device. Standard single-phase 220 VAC ±10% power and 50 Hz/60 Hz frequency support common laboratory installations. For projects requiring a different electrical configuration, 110 VAC can be customized. The 1 kW power rating provides a defined basis for facility planning and equipment integration.

Why Choose This Product

• Process Consistency: Servo-based tension control on both unwind and rewind sections helps reduce variation caused by manual adjustment and supports repeatable roll processing.

• Improved Roll Quality: Automatic photoelectric edge guiding and ±0.5 mm winding accuracy help produce orderly, well-aligned rolls for demanding downstream work.

• Designed for Integrated Workflows: The split structure can be arranged around a hydraulic two-roll press, making the equipment suitable for connected battery electrode processing systems.

• Practical Laboratory Engineering: An independent control system, continuous operation, compact installation dimensions, and 1 kW power rating provide a clearly defined platform for research and pilot-scale use.

• Configurable Installation: Standard 220 VAC operation and customizable 110 VAC power allow the equipment to be adapted to different laboratory electrical environments.

Contact us for a quotation, application review, or a customized unwind and rewind solution matched to your roll material and process requirements.

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