GBTECH lightweight carbon fiber tube is a hollow composite tube manufactured by roll-wrapping and pullwinding processes using T300/T700 grade carbon fiber and epoxy resin. With a density of approximately 1.55-1.6 g/cm³ (about one-fifth the weight of steel), the tube delivers a tensile strength of 600-900 MPa at the laminate level while maintaining exceptional stiffness-to-weight ratio. The standard 3K twill weave surface provides a premium visual finish. Available in outer diameters from 3mm to 500mm and wall thicknesses from 0.3mm to 50mm, it serves as the go-to lightweight structural tube for drone arms, robotic links, RC models and telescopic equipment.
Material: T300/T700 carbon fiber + epoxy resin composite
Outer Diameter: 3-500mm (customizable)
Wall Thickness: 0.3-50mm (customizable based on layup design)
Max Length: Up to 10,000mm
Surface: 3K twill/plain weave, glossy or matte finish
Density: 1.55-1.6 g/cm³
Tensile Strength (laminate): 600-900 MPa (ASTM D3039)
Tensile Modulus (laminate): 70-230 GPa (ASTM D3039)
Certification: ISO 9001 Quality Management Certification
Ultra-Lightweight & High Strength: At only 1.55-1.6 g/cm³ density, the tube is approximately 80% lighter than steel while delivering laminate tensile strength of 600-900 MPa. This exceptional strength-to-weight ratio maximizes payload capacity and reduces overall system weight.
3K Weave Surface Finish: Standard 3K twill or plain carbon fiber weave provides a premium visual appearance. Both glossy and matte surface options are available, suitable for visible structural components in consumer and industrial products.
Excellent Dimensional Accuracy: Outer diameter tolerance of ±0.05-0.15mm ensures consistent fit for telescopic joints, bearing housings and precision-machined connections. Wall thickness uniformity guarantees predictable bending and torsional performance.
Customizable Layup & Dimensions: Fiber grade (T300/T700), weave pattern, wall thickness, outer diameter and length can all be tailored to specific load requirements. Special thin-wall (0.3mm) and large-diameter (up to 500mm) options are available.
Agricultural Drone & UAV: Lightweight arm tubes for crop spraying drones, surveying UAVs and multi-rotor aircraft, reducing airframe weight while maintaining structural integrity under flight loads.
Robotics & Automation: Robotic arm links, linear guide support tubes and lightweight structural frames for industrial automation equipment.
RC Models & Hobby: RC car chassis tubes, helicopter frame components and high-performance model aircraft structural parts.
Telescopic & Outdoor Equipment: Telescopic pole segments, tripod legs, tent pole replacements and kite spars where lightweight and stiffness are critical.
Explore our other High-Strength Carbon Fiber Tubes and Custom Carbon Fiber Products to meet different needs.
We offer full customization services including outer diameter, inner diameter, wall thickness, length, fiber grade (T300/T700), weave pattern and surface finish. Standard material is 3K carbon fiber. Secondary machining such as precision cutting, end finishing, hole drilling and CNC machining is available on request. Contact us to get your tailored lightweight carbon fiber tube solution.
Price: Pricing varies depending on order volume, tube dimensions, wall thickness, fiber grade and additional machining requirements.
Stock Availability: Common standard sizes are available for prompt delivery; custom dimensions require production lead time.
Shipping Options: Choose the most suitable shipping method based on your requirements, worldwide delivery available.
"We use GBTECH lightweight carbon fiber tubes as arm tubes for our agricultural spray drones. The 3K twill finish looks premium, and the wall thickness tolerance is consistent batch after batch. Our drone airframe weight dropped significantly compared to aluminum arms."
"The tubes are dimensionally accurate and easy to machine. We cut them to length and install motor mounts without issues. The T700 material holds up well under vibration and outdoor exposure."
What is the density of GBTECH lightweight carbon fiber tubes?
The composite density is approximately 1.55-1.6 g/cm³, which is about one-fifth the weight of steel and significantly lighter than aluminum.
What is the difference between T300 and T700 carbon fiber tubes?
T300 offers standard modulus (230 GPa) and good strength (3530 MPa fiber tensile strength). T700S provides higher tensile strength (4900 MPa) at the same modulus, recommended for applications requiring extra load capacity.
Can the tubes be cut and machined?
Yes, all tubes support precision cutting, CNC machining, drilling and surface finishing. We can also provide pre-cut and machined parts according to your drawings.
Official GBTECH Websites:
EMail: zane@gbtechgroup.cn
Phone: +1 (510)902-9987
www.gbtechgroup.cn | www.gbtechcomposites.com | www.gbtechmaterials.com
US.Office: 38758 Buckboard Common, Fremont, CA 94536, United States
China Head Quaters: Building 1, Left Side, Tangye Road, Xinxu, Huiyang, Huizhou, China
WhatsApp
E-mail