Prepreg Pancake Narrow Slitter

The TT-ZBF (300~1300) prepreg pancake narrow slitter is a specialized machine designed for precision slitting of thermoset/thermoplastic prepreg and parallel pancake-style winding. The complete system consists of unwinding, release liner rewinding, slitting, pull-roll, pancake rewinding, edge trim collection, and electrical control units. It is suitable for slitting carbon/glass fiber prepreg into narrow tapes and winding them into parallel pancake rolls, providing high-precision narrow-width feedstock for downstream automated fiber placement (AFP) and filament winding processes. It can also be used for prepreg slitting/rewinding and release liner recovery. Widely used in UAV, marine, automotive and rail transit, wind turbine blades, petrochemical, and other fields for narrow-tape placement, pressure vessels, and pipe winding.

·Applicable Materials: Thermoset/thermoplastic prepreg (carbon/glass prepreg tapes)
·Slitting Width: ≥3.175 mm (any specification, e.g., 3.175, 6.35, 12.7, 25.4 mm)
·Slitting Accuracy: ±0.125 mm
·Prepreg Unwind Width: 300 – 1300 mm (depending on model)
·Rewinding Method: Dual differential-shaft center/surface winding, pancake winding
·Max. Rewind Diameter: Φ450 mm
·Core Inner Diameter: Standard Φ76 mm; other sizes customizable

·Ultra-High Precision Slitting
Slitting width ≥3.175 mm. Micron-level high-precision grinding blade set ensures accuracy of ±0.125 mm. Equipped with blade depth detection system for real-time display of cutting depth and zero position.
·Dual Differential-Shaft Center/Surface Winding
Rewinding uses two differential shafts with independent tension control via asynchronous servo motors and vector inverters. The differential shafts automatically compensate for tension variations caused by diameter differences across the winding positions, ensuring consistent tension and neat edges for every pancake on the same shaft. Especially suitable for narrow-tape pancake winding with high tension uniformity requirements.
·High-Efficiency Automatic Rewinding
Optional dedicated film-type winder (pancake) enables non-stop roll change at full diameter, significantly improving productivity.
·Independent Release Liner Rewinding
Equipped with an independent release liner rewinding unit for simultaneous stripping and neat winding of the liner during slitting.
·Intelligent Operation & Data Management
PLC + HMI operation. Fully automatic constant tension control on unwinding, with servo edge-guiding for neat prepreg edges. Automatic length counting with alarm for roll change, and automatic memory of parameters after power-off.
·Rich Configuration Options
Optional online width/defect inspection system (high-definition camera vision, detects PE film debris, fuzz, adhesive tape, and other foreign matter, displays real-time width of each strip).

Note: The above parameters may vary with different configurations. Please consult our sales representative for detailed specifications.