Wet Process Prepreg Production Line

The TT-Y-SL (300~1600) wet process prepreg impregnation line is a dedicated system designed for continuous fiber-reinforced prepreg production using the wet process. The complete line consists of fabric unwinding, splicing, accumulator, front pull-roll, impregnation bath, metering squeeze rolls, vertical dryer, cooling, release liner unwinding, PE film unwinding, film-covering pull-roll, edge trimming, cutting, winding, automatic cross-cutting, online basis-weight inspection, online defect inspection, combustible gas concentration alarm, and electrical control units. By impregnating the reinforcing fabric in a resin solution, followed by metering extrusion, drying, and curing, the line produces high-quality prepreg products. It is suitable for producing high-performance prepreg for applications in UAVs, rail transit, high-end sporting goods, and industrial composites.

·Reinforcements: Glass fabric, carbon fabric, basalt fabric, etc.
·Fiber Areal Weight: 30 – 800 g/m²
·Resin Systems: Thermoset resins (epoxy, phenolic, etc.), solventdilutable
·Product Width Range: 300 – 1600 mm
·Product Form: Sheets, rolls

·High-Precision Squeegee Metering System
Metering squeeze rolls achieve ±2 μm precision at working temperature. Servo-controlled gap adjustment with measurement accuracy of 0.5 μm and control accuracy of 1 μm, ensuring precise resin content control.
·Intelligent Impregnation Bath
Offers ambient impregnation, water-bath heating (up to 70°C, accuracy ±2°C), or cooling modes to suit different resin viscosities. Equipped with automatic circulation system (storage tank, level control, pneumatic diaphragm pump) for uniform and stable resin supply.
·Efficient Vertical Oven
Double-sided hot-air convection drying with PID automatic temperature control for high thermal efficiency. Built-in gas concentration detectors interlocked with heating, fans, line speed, and alarms to ensure safe operation.
·High Automation
Central console with large screen for automatic control of squeeze gap, tension, speed, temperature, length, and other parameters. Both unwinding and rewinding support non-stop roll changes; each unit can also be operated independently on-site.
·Comprehensive Tension Control
A floating-roller tension control system installed at the dryer outlet works with the rear pull-roll in closed-loop control, ensuring stable tension during the drying process.
·Multiple Safety Protections
The impregnation area is enclosed with a partition room (aluminum frame + tempered glass, top exhaust) and dust collection boxes. The oven is equipped with gas concentration detection interlock alarms. Electrical cabinets have IP54 protection.
·Rich Optional Units
Optional: splicing table, accumulator, automatic viscosity adjustment system, online basis-weight gauge (X-ray), defect inspection system, automatic labeling unit, sheet cutter & stacker, etc., to enhance automation and quality monitoring capabilities.

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