High Stiffness-to-Weight Carbon Fiber - Lightweight High-Strength Tubes

LIJIN has developed a unique composite tube manufacturing process, combing precise control of the fibre lay-up angles with the enhanced properties of Thin Ply Prepregs. The process is ideal for any tubular structure where weight, performance and cost are critical factors. Automotive drive shafts, aircraft struts, windsurf masts and golf shafts are just a few examples of possible applications.

With any tubular product, or indeed any composite structure, the use of thinner plies offers nearly unlimited options for fibre angles and fibre type combinations; and the micro-structure of a thin ply laminate results in higher mechanical properties. LIJIN’s novel tube manufacturing process ensures that each of these thin carbon plies is wound continuously, resulting in a symmetrically stiff tube with no spine, unlike the traditional table rolling methods that have dominated the market until now. This new process affords precise control over the alignment of perfectly axial fibre, which is difficult to achieve with filament winding. The ratio of longitudinal fibres to off-axis fibres along the length and through the thickness of the tube can be controlled, enabling optimization and higher quality in demanding applications.

Carbon fiber tubes are made with a high-strength plastic composite that’s both stiff and lightweight. They conduct heat and electricity and offer excellent machinability. They are commonly used in applications that require high strength-to-weight and high stiffness-to-weight applications in aerospace, military structures, robotics, and manufacturing fixtures and sports equipment.

Due to their unique properties, carbon fiber tubes are used in numerous applications over traditional materials such as aluminum, steel and titanium.

Features are:

• High strength and stiffness with light weight
• Excellent fatigue resistance
• Dimensional stability: Low to Zero CTE (Coefficient of Thermal Expansion)

LIJIN can provide an extensive range of high-performance, lightweight composite tubing for use in a wide variety of industries and applications. These lightweight, composite tubes exhibit outstanding strength, durability and rigidity. They deliver excellent tensile strength characteristics compared to conventional structural metals and are the first choice in a variety of performance applications.

Whether it's aesthetic variations or superb mechanical properties, we've got the carbon fiber tubes for you!

Our Service:

1. It ensures that a year of quality assurance and 24 hours online customer service.
2. Protection of your sales area, ideas of design, and all your private information.
3. Request for samples is accepted.
4. Drilling and slotting are accepted.
5. We guarantee the products to be manufactured with the finest materials and mature technics.
All tubes can be repaired at no charge if returned to us, postage prepaid, within one year.

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.