500X500X4MM 100% 3K Plain Weave Carbon Fiber Sheet Laminate Plate Twill Weave Plate

500X500X4MM 100% 3K Plain Weave Carbon Fiber Sheet Laminate Plate Twill Weave Plate

The Plain Weave Carbon Fiber Sheet is a high-performance composite material made from 3K carbon fiber fabric arranged in a plain (1×1) weave pattern and cured with high-strength epoxy resin under vacuum pressure or autoclave technology. In this weave, each carbon fiber tow passes alternately over and under the perpendicular tows, forming a tight, checkerboard-like structure that provides excellent stability, uniform strength, and smooth surface quality.

This sheet combines the lightweight advantage of carbon fiber with high rigidity and outstanding dimensional stability. The tight interlacing of the plain weave enhances resistance to deformation and surface impact, making it ideal for structural applications requiring flatness and stiffness rather than deep draping.

Key Features

• High Strength-to-Weight Ratio: Up to five times stronger than steel at a fraction of the weight.
• Balanced Mechanical Properties: Equal stiffness and strength along both fiber directions (warp and weft).
• Smooth and Uniform Surface: Tight weave results in a clean, fine appearance with low porosity.
• Excellent Dimensional Stability: Minimal distortion under load or thermal expansion.
• Superior Rigidity: Ideal for flat panels and structural components.
• Corrosion and Fatigue Resistance: Long service life under harsh or repetitive use.
• Multiple Finish Options: Glossy or matte surface available for different aesthetic or functional needs.
• Easy to Machine and Bond: Can be CNC-cut, drilled, and bonded using epoxy or structural adhesives.

Manufacturing Process

1. Fabric Lay-up: 3K plain weave fabric is stacked in alternating orientations (0°/90°) to ensure balanced strength.
2. Resin Infusion or Prepreg Layup: Layers are impregnated with epoxy resin using vacuum bagging or autoclave curing.
3. Curing: High-pressure, high-temperature curing ensures uniform density and a void-free surface.
4. Trimming and Polishing: Sheets are precision-cut and surface-finished for consistent thickness and edge quality.

Applications

• Industrial and robotic machine panels
• Aerospace and automotive parts (flat covers, supports, brackets)
• Sporting goods and RC model structures
• Marine components and drone chassis
• Decorative carbon fiber plates and consumer product covers
• Replacement for aluminum or steel in lightweight assemblies

Advantages Over Twill Weave

• Tighter Structure: Better fiber alignment and dimensional stability.
• Less Distortion During Machining: Reduced fraying and edge lifting when cut or drilled.
• More Uniform Surface: Suitable for structural and precision applications.
• Slightly Higher Impact Resistance: The interlaced weave distributes stress evenly.

Carbon Fiber Sheet Plate Specification:

Shanghai Lijin focuses on the Carbon Fiber industry and offers carbon fiber tubes, plates, and aluminum CNC services.

Being experienced in the carbon fiber applications for over 7 years, Shanghai Lijin manages customized production according to various industry standards. Shanghai Lijin started to keep in stock for some standard

sized and frequently ordered tubes and plates. This enables Shanghai Lijin to make prompt delivery. Not only

can Shanghai Lijin complete mass production orders in short period, we can even ship normal sample, prototype orders of Carbon Fiber Plate CNC parts in just SEVEN days after order confirmation when the

drawings are available. Shanghai Lijin is dedicated to solve any technical points during the production and new item developing to ensure the quality.

Carbon Fiber tube production is Shanghai Lijin’s core business and occupies 70% of our turnover.
The carbon fiber tubes Shanghai Lijin mainly produce is table-rolled and oven thermoset. The tubes can be Full Carbon or Carbon Fiber and Fiberglass composite, depending on the application, weight limit,mechanical

strength and surface requirement.Shanghai Lijin offers top quality ROUND carbon fiber tubes. The general OD tolerance we achieve is +/-0.10mm and it can be even +/-0.05mm after our special surface process.

The maximum length of the tube can be 5500mm.

Besides the traditional table-rolled carbon fiber tubes, Shanghai Lijin also offers REAL Filament wound carbon fiber tubes,which are widely used for mechanical strength like auto driving shaft, antennas, even for military

applications. The filament wound carbon tubes are wound at a certain angle like 30 or 45 degree. We invested the new production line from Jun 2013 and this increases Shanghai Lijin’s advantage in the carbon

fiber tube industry. There are just a few real filament wound carbon fiber tube manufacturers in domestic

China and we are one of them.
 

Since the rapid growth of UAV in the international market, instead of the standard plane like Phantom from DJI, RC fans are getting more interested in the customized multicopters. As carbon fiber is the most preferred

material for UAV, Carbon Fiber CNC parts demand is increasing. Shanghai Lijin sticks to offering OEM service for the international market, fine quality and prompt delivery.To ensure the thickness tolerance +/-0.10mm and minimum warp of the Carbon Fiber plates that are used for the cutting, Shanghai lijin execute high standard to

the plate production. For the normal thicknesses including 1.0mm, 1.2mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm,
Shanghai Lijin keeps regular stock, to make sure the raw material will be available for cutting immediately when order is firmed.Experienced engineers are in Shanghai Lijin’s office ready to deal with different types of

drawings from customers. No matter the drawing formats are .DWG, .DXF that can be edited by AutoCAD

and used directly for production, 3D drawings like .IGS, or even draft drawings, our staff can do adjustment and change to customer’s idea. Our engineers are also good at English communication, Email and IM is easy

for them. Editing drawings for customers is FREE* of charge. Shanghai Lijin is having several professional CNC machines for carbon fiber cutting and drilling, with the capacity of cutting 20-50pcs standard full sized plate per day. The carbon fiber chassis general cutting tolerance Shanghai Lijin offer is +/-0.02mm. The

special designed cutting solution ensures the smoothness of the cutting edge.

‘Customers’ Persuit for Change, Lijin’s Motivation for Growth’, Shanghai Lijin takes customers’ demand for center, enhances the
customer satisfaction, and grows with customer.