Prepreg Coating Machine

The prepreg production line consists of two core parts: a coating machine and an impregnation line. It is designed to handle various reinforcements such as carbon fiber, glass fiber, basalt, aramid, and UHMWPE fiber, as well as resin systems including epoxy, phenolic, cyanate ester, and bismaleimide. It can produce prepreg products with widths ranging from 500 to 1275 mm, meeting the precision manufacturing needs of high-end sporting goods, UAVs, automotive and rail transit, wind turbine blades, shipbuilding, 3C electronics, and medical rehabilitation devices.
The TT-Y-GT300~1600 coating machine is the resin-film preparation unit of the prepreg production line. The complete system consists of release liner unwinding, negative-pressure splicing table, coating unit, online basis-weight inspection, cooling, PE film unwinding, film-covering pull-roll, winding, and electrical control units. Through precision coating, the resin system is uniformly applied onto the release liner surface, forming a resin film with consistent thickness and accurate basis weight. This provides high-quality resin film feedstock for the subsequent impregnation process, and is the key step that determines the resin content precision of the final prepreg.

·Resin Systems: Epoxy, phenolic, cyanate ester, bismaleimide, etc.
·Resin Viscosity: 8,000 – 300,000 cps
·Release Liner: CCK / PEK
·Protective Film: PE film
·Film Basis Weight Range: 10 – 300 g/m²

·Dual-Mode Coating Technology
Supports both forward and reverse coating with easy switchover. Coating speed ratio is arbitrarily adjustable, accommodating a wide viscosity range of 8,000–300,000 cps. High coating precision and long roll service life.
·Dual Closed-Loop Precision Control
Gap detection + online basis-weight measurement work with servo-controlled gap adjustment to form a dual closed-loop system, ensuring stable coating precision during continuous production.
·High-Precision Coating Rolls
Runout and straightness accuracy of ±1.5 μm, and roll surface temperature accuracy of ±1.0°C.
·Flexible Heating Methods
Coating rolls can be heated via thermal oil or electromagnetic induction, adapting to different process requirements.
·Online Basis-Weight Inspection
Real-time monitoring of coating basis weight with on-site audible/visual alarms. Data can be stored, queried, and viewed as historical trends.
·Full-Line Servo Control
Full-line servo control with centralized HMI for automatic control of gap, tension, speed, temperature, length, and other parameters. Each unit can also be operated independently on-site.
·High Efficiency
Coating speed of 3–33 m/min, covering film basis weights from 10 to 300 g/m².

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