Low Thermal Expansion 35mm x 32mm Carbon Fiber Tube with High Stiffness and 3K Matte Surface

Low Thermal Expansion 35mm x 32mm Carbon Fiber Tubes 3K Matte Surface

In industries where weight, strength, and rigidity must be perfectly balanced, stiff carbon fiber tubes have emerged as a top choice. From aerospace engineering to robotics, drones, and automotive applications, these tubes provide unmatched structural performance with minimal weight.

Our carbon fiber tube is made by the Roll Wrapped process, and can be designed with multi-angle ply to create high-performance, high-quality carbon fiber tubes. It can be widely used in medical equipment, sports equipment, drones, industrial machinery, and various rollers.

Main Features

• High stiffness and strength
• Most Lightweight
• Low Density
• Safety
• Corrosion Resistance
• X-ray transparency
• Low CTE (Coefficient of Thermal Expansion)
• Chemical Resistivity
• Thermal and electrical conductivity
• Fatigue
• Durability
• Production Flexibility

Our Advantages

• 10 years of experience
• Professional manufacturer
• Strict Quality Control
• Expert workers
• Close Tolerance
• Reasonable price
• Short Production Time
• Company Culture&Value

Manufacturing Process

The manufacturing process involves several steps:

• Material Selection: High-quality yarns are carefully selected, considering their tensile strength, modulus, and other required properties.
• Prepreg Production: To create prepreg sheets, the selected yarns are impregnated with a thermoset resin, usually epoxy. These prepreg sheets offer precise control over fiber alignment and resin distribution.
• Layup and Curing: The prepreg sheets are cut into specific dimensions and stacked layer by layer in a mold, aligning the fibers according to the desired pattern. The assembly is then cured under heat and pressure, transforming the prepreg into a solid structure.
• Post-processing: Once cured, the tubes undergo various post-processing steps, such as sanding, trimming, and surface treatment, to achieve the desired final dimensions, smoothness, and appearance.

Unique Properties of 3K Carbon Fiber Tubes

3K carbon fiber tubes possess several unique properties that make them highly desirable in various applications:

• High Strength-to-Weight Ratio: The 3K carbon fiber's arrangement of 3,000 filaments in each tow provides exceptional strength while maintaining a lightweight profile. This property is crucial in industries where weight reduction is essential, such as the aerospace and automotive sectors.
• Excellent Stiffness: The aligned fibers provide high stiffness, ensuring minimal deflection under load. This property makes them ideal for applications that require rigidity and stability, such as robotics and industrial equipment.
• Corrosion and Fatigue Resistance: Carbon fiber composites, including 3K carbon fiber tubes, exhibit excellent resistance to corrosion and fatigue, making them suitable for outdoor and demanding environments.

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.