This automatic unwinding & winding unit is designed for rewinding and slitting of roll materials. Equipped with an independent control system for automatic unwinding and rewinding, it can be matched with calendering machines for lithium battery cathode/anode calendaring, as well as rewinding and slitting of optical films, functional films and other web materials.

Key Features

Servo automatic tension control for unwinder and rewinder
Auto edge correction on both unwinding and winding sides to ensure neat wound rolls
Self-contained independent electrical control system
Separated unwinding and winding modules
Support inline operation with hydraulic calendaring machine

Technical Specifications

Tension Control	Servo automatic control for unwinder & rewinder
Edge Correction	Photoelectric auto edge correction on unwinding and winding sides
Tension Range	0–30 N
Max Roll Diameter	250 mm
Guide Roller Width	350 mm
Web Mode	Continuous operation
Max Running Speed	6 m/min
Loading Shaft	3-inch air expanding shaft
Edge Alignment Accuracy	±0.5 mm
Power Supply	Single-phase AC220V ±10% (110VAC customizable), 50/60 Hz
Rated Power	1 kW
Unwinder Dimensions	L790 × W410 × H530 mm
Rewinder Dimensions	L790 × W650 × H530 mm
Unwinder Weight	~200 kg
Rewinder Weight	~237 kg

Applications

Unwinding and rewinding of lithium battery cathode/anode electrodes integrated with a hydraulic calendering line
Rewinding and slitting of calendered web materials
Rewinding and slitting of other roll materials such as optical and functional films

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