Pultrusion Carbon Fiber Tube Ext. ∅ 25 Mm Int. ∅ 23 Mm 1 Mm Thickness 1000Mm Length

Pultrusion Carbon Fiber Tube, ext. ∅ 25 mm, int. ∅ 23 mm, 1 mm thickness (1000 mm length)

Pultruded tubes are made by pulling continuous strands of carbon fiber through a ‘die’; as they are pulled through they are coated in epoxy resin and as they come out of the die the epoxy resin is cured at high speed. Tubes (or rods, or strips) made in this way have all of their fiber running length-ways down the tube which means that they are very strong along their length (very stiff if you try to bend them) with less stiffness in the other direction.

Pultruded carbon tubes are created by pulling linearly oriented carbon fibers through a resin bath and then a series of tooling to create the specified inner and outer diameters of the tube. The carbon tube is then heated to cure it. Carbon tubes are especially stiff longitudinally, due to the unidirectional orientation of the fibers.

Round carbon fibre tubes are manufactured by using the pultrusion technique in which the high-performance carbon fibres are all orientated parallel to the longitudinal axis (unidirectional) and internally reinforced with more unidirectional carbon fibres laminated by using pull-wingding technology to achieve greater resistance to bending and torsion.

Diameter: 25 mm, int. 23 mm
Length: 1000 mm (1m)
Thickness: 1 mm

This type of profile has high specific mechanical resistance (related to its weight), lightness, rigidity, great resistance to fatigue and vibrations, resistance to oxidation and corrosion, low coefficient of thermal expansion, and durability.

Pultrusion is a technique of continuous production of linear profiles with a constant section. This process has many similarities to extrusion, the main difference is in the feeding system: in extrusion, the material is pushed through the matrix (mold), and in pultrusion, it is extracted from the matrix. This procedure does not allow variations in shape, sections, or curves. Products that can be obtained by this process can have sections or thicknesses of up to approximately 15mm, with epoxy resins and up to 70mm with polyester resins.

Products made with this technology have excellent tensile strength characteristics due to the linear orientation of the fibers in the direction of the axis of the profile; if it is also necessary to have a good transversal resistance, a woven fabric is used as a backing in specific quantities and weights.

Main Features

• Mechanical Resistances according to standard UNI EN 13706-1-2-3 ISO527
• Elastic module (E): 150 Gpa
• Elastic module x section (E A): 11.309 kN
• Tensile strength > 2.463 Mpa
• Tensile strength in section: 186 kN
• Carbon Fibre Properties
• Number of filaments: 24K (24.000 filaments per strand)
• Elastic module (E): 234 GPa
• Tensile strength: 4.830 MPa
• Density: 1,80 g/cm3

Other Characteristics

• Carbon fibre content by volume (Vf): 68%
• Glass transition temperature (Tg), ISO 11357-2 DSC: 140 ºC
• Recommended Start Temperature: -30 ºC a + 100 ºC
• Resin type: epoxy
• The carbon tube is made of pure 3K carbon fiber material. matte finish is great for surface coating and adhesive bonding applications. They can be cut to any length with an abrasive chop saw.
• Widely used in RC models, agricultural equipment, fishing equipment, machinery, automobiles, sports equipment, kites, handicrafts, tents, windmills, umbrellas, decorating part,s and so on.

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.