Pultruded Carbon Fiber Tube (Hollow) 20mm(OD) * 16mm(ID) * 1000mm(L)
Pultruded Carbon Fiber Tube (Hollow) 20mm(OD) * 16mm(ID) * 1000mm(L)
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This pultruded carbon fiber hollow tube is a high-strength, lightweight structural component manufactured through continuous pultrusion process, delivering consistent fiber-to-resin ratios and superior mechanical properties. Professional engineers, drone manufacturers, aerospace technicians, and robotics developers rely on these tubes for applications requiring exceptional strength-to-weight ratios and dimensional precision. It solves the critical engineering challenge of reducing structural weight while maintaining rigidity and load-bearing capacity in precision applications.
Specifications
| Specification | Details |
| Product Type | Pultruded Carbon Fiber Hollow Tube |
| Outer Diameter (OD) | 20mm |
| Inner Diameter (ID) | 16mm |
| Wall Thickness | 2mm |
| Length | 1000mm |
| Material Composition | Carbon Fiber Reinforced Polymer (CFRP) |
| Fiber Type | Continuous Unidirectional Carbon Fiber |
| Resin System | Epoxy or Polyester (Standard) |
| Tensile Strength | Approximately 600-700 MPa |
| Tensile Modulus | 120-140 GPa |
| Density | 1.55-1.60 g/cm3 |
| Weight per 1000mm | Approximately 97-105 grams |
| Surface Finish | Smooth Glossy or Matte |
| Brand | Generic High-Quality Pultruded |
| Origin | Original/Authentic |
Why Choose Pultruded Carbon Fiber Tube (Hollow) 20mm(OD) * 16mm(ID) * 1000mm(L)?
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Key Features of Pultruded Carbon Fiber Tube (Hollow) 20mm(OD) * 16mm(ID) * 1000mm(L)
- Consistent Wall Thickness: Precision pultrusion process ensures uniform 2mm wall thickness throughout the 1000mm length, eliminating weak points and ensuring predictable load distribution in structural applications
- Exceptional Strength-to-Weight Ratio: Carbon fiber construction delivers tensile strength of 600-700 MPa at only 97-105 grams per meter, reducing overall system mass by 70% compared to aluminum alternatives
- Superior Stiffness and Rigidity: Tensile modulus of 120-140 GPa provides excellent resistance to bending and deflection, critical for precision robotic arms, drone frames, and optical mounting systems
- Corrosion and Chemical Resistance: Epoxy resin matrix resists moisture absorption, saltwater corrosion, and chemical exposure, making it suitable for marine, industrial, and outdoor applications without protective coatings
- Excellent Damping Characteristics: Carbon fiber's inherent vibration absorption reduces resonance and oscillation, improving precision in measurement equipment and reducing vibration transmission in sensitive assemblies
- Thermal Stability: Maintains structural integrity across temperature ranges from -40°C to +80°C without significant property degradation, suitable for aerospace and outdoor environmental conditions
Perfect For
- Drone and UAV Frames: Use as boom arms, landing gear supports, and structural reinforcement in quadcopter and fixed-wing aircraft designs where weight reduction directly increases flight time and payload capacity
- Robotic Arm Construction: Ideal for articulated robot joints and extension arms where the high stiffness-to-weight ratio enables faster acceleration, reduced motor load, and improved positioning accuracy in industrial automation
- Aerospace and Aviation Components: Utilized in aircraft interior structures, antenna booms, sensor mounting brackets, and experimental aircraft frames where weight savings are critical for fuel efficiency and performance
- Precision Instrumentation Mounts: Perfect for optical bench frames, telescope mounts, and laboratory equipment structures where vibration damping and dimensional stability are essential for measurement accuracy
- Automotive Racing Applications: Used in roll cages, suspension components, and chassis reinforcement in high-performance racing vehicles where reduced unsprung weight improves handling and acceleration
- Marine and Offshore Structures: Suitable for boat mast sections, underwater sensor housings, and subsea equipment frames where corrosion resistance and lightweight construction provide operational advantages
How to Use
Clean the tube with a soft cloth to remove dust and contaminants. For structural applications, calculate the moment of inertia (approximately 628 mm4 for this 20mm OD configuration) to ensure the tube meets your load requirements. If cutting is necessary, use a fine-toothed carbide or diamond blade with coolant to prevent fiber fraying and matrix cracking. Cut slowly at low speeds to minimize heat generation and material damage.
For joining, use mechanical fasteners (bolts with washers) through drilled holes, or epoxy adhesive designed for carbon fiber bonding. Avoid stress concentrations by using large-diameter washers and ensuring holes are drilled perpendicular to the tube axis. For applications involving bending moments, support the tube at appropriate intervals based on load calculations to prevent buckling. Do not exceed the recommended tensile stress of 600-700 MPa or apply sudden impact loads. For thermal applications, verify the resin system's temperature rating before exposing to extreme conditions. Store in a dry environment away from direct sunlight to prevent UV degradation of the epoxy matrix.
Product Overview
Pultruded carbon fiber tubes are manufactured by pulling continuous carbon fiber strands through a heated resin bath and die cavity, creating a uniform cross-section with excellent fiber alignment along the longitudinal axis. This manufacturing process ensures minimal voids, consistent wall thickness of 2mm, and superior tensile strength compared to hand-laid or filament-wound alternatives. The hollow design with 20mm outer diameter and 16mm inner diameter provides optimal moment of inertia for bending applications while minimizing material usage and cost.
The 1000mm length offers versatility for direct application or custom cutting for specific projects. Carbon fiber pultruded tubes exhibit exceptional stiffness (modulus of elasticity approximately 120-140 GPa), corrosion resistance in harsh environments, and thermal stability across wide temperature ranges. Unlike aluminum tubes of equivalent dimensions, this carbon fiber variant weighs approximately 70% less while providing superior fatigue resistance and damping characteristics, making it ideal for vibration-sensitive applications in precision instrumentation and aerospace structures.
Frequently Asked Questions
What is the difference between pultruded and filament-wound carbon fiber tubes?
Pultruded tubes have continuous unidirectional fiber alignment along the length, providing superior longitudinal strength and stiffness with consistent wall thickness and minimal voids. Filament-wound tubes have fibers wrapped at various angles, offering better hoop strength and burst resistance. For axial loading and bending applications, pultruded tubes are superior. For pressure vessels and radial loading, filament-wound tubes are preferred. Pultruded tubes also offer better surface finish and dimensional tolerances.
Can I cut this carbon fiber tube to custom lengths?
Yes, the 1000mm tube can be cut to shorter lengths using a fine-toothed carbide or diamond blade with coolant. Use a miter saw or band saw at low speeds (1500-3000 RPM) to prevent fiber fraying and matrix cracking. Always wear safety equipment including eye protection and dust mask. After cutting, sand the edges with fine-grit sandpaper (220-400 grit) to smooth any rough fibers. Avoid high-speed cutting which generates excessive heat and damages the resin matrix.
What is the load-bearing capacity of this tube?
The load capacity depends on application type and support conditions. For axial tension, the tube can withstand approximately 420-490 Newtons before failure (based on 600-700 MPa tensile strength and cross-sectional area of 0.7 mm2). For bending applications with simply supported conditions, the maximum safe load is approximately 7-10 kg at the center of a 1000mm span with a safety factor of 3. For critical applications, perform finite element analysis (FEA) or consult with a structural engineer to determine exact load ratings for your specific configuration.
Is this tube suitable for outdoor applications?
Yes, carbon fiber with epoxy resin exhibits excellent corrosion resistance and can withstand outdoor conditions including saltwater exposure, humidity, and UV radiation. However, prolonged direct UV exposure can degrade the epoxy matrix over time. For extended outdoor use, apply a UV-protective coating or paint, or store in a covered location when not in use. The tube is suitable for marine applications, outdoor drone frames, and exposed structural components without special protection, but UV shielding extends service life significantly.
Can I bond or glue this tube to other materials?
Yes, use two-part epoxy adhesive specifically formulated for carbon fiber bonding, or mechanical fasteners. For adhesive bonding, clean the tube surface with acetone or isopropyl alcohol to remove contaminants and improve adhesion. Apply epoxy to both surfaces and clamp firmly for 24 hours while curing. Mechanical fastening with bolts and large washers is more reliable for high-load applications. Avoid cyanoacrylate (super glue) which does not bond effectively to carbon fiber. Always follow the adhesive manufacturer's instructions for surface preparation and curing time.
Are bulk discounts available?
Yes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.
Customer Support
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Order your Pultruded Carbon Fiber Tube (Hollow) 20mm(OD) * 16mm(ID) * 1000mm(L) today and start building your next project.