Pultruded Carbon Fibre Tube (Hollow) 5mm * 3mm * 1000mm (Pack of 4)
Pultruded Carbon Fibre Tube (Hollow) 5mm * 3mm * 1000mm (Pack of 4)
Pultruded Carbon Fibre Tube (Hollow) 5mm * 3mm * 1000mm (Pack of 4)
The Pultruded Carbon Fibre Tube is a high-strength, lightweight hollow structural component manufactured through continuous pultrusion process, delivering superior tensile strength and dimensional consistency. Professional engineers, aerospace technicians, and robotics developers rely on these tubes for precision applications requiring minimal weight without compromising structural integrity. This product solves the critical challenge of achieving high strength-to-weight ratios in load-bearing structures while maintaining excellent chemical resistance and thermal stability.
Product Overview
Pultruded carbon fibre tubes are manufactured using the pultrusion process, where continuous carbon fibre reinforcement is pulled through a thermosetting resin bath and heated die, creating a uniform cross-section with exceptional fibre alignment. This manufacturing method ensures consistent wall thickness, superior fibre-to-resin ratio, and eliminates voids that compromise structural performance. The hollow design of this 5mm outer diameter tube with 3mm inner diameter provides optimal load distribution for applications requiring bending and torsional resistance while maintaining the lightweight advantage of composite materials.
The 1000mm length in a pack of four units offers versatility for prototyping, assembly, and production applications. Carbon fibre composites exhibit modulus of elasticity exceeding 230 GPa, making these tubes ideal for precision mechanical assemblies, drone frames, telescopic structures, and vibration-damping applications. The pultruded construction guarantees superior surface finish, dimensional accuracy within tight tolerances, and resistance to corrosion, UV degradation, and environmental stress cracking that would affect traditional materials.
Key Specifications
| Specification | Details |
| Product Type | Pultruded Carbon Fibre Hollow Tube |
| Outer Diameter | 5mm |
| Inner Diameter | 3mm |
| Wall Thickness | 1mm |
| Length per Unit | 1000mm |
| Quantity per Pack | 4 tubes |
| Material Composition | Carbon Fibre Reinforced Epoxy Resin |
| Manufacturing Process | Continuous Pultrusion |
| Tensile Strength | Approximately 600-700 MPa |
| Flexural Modulus | Approximately 230-250 GPa |
| Density | Approximately 1.6 g/cm3 |
| Brand | Original Authentic |
| Origin | Original/Authentic |
| Warranty | 7 days on manufacturing defects |
| Shipping | 1-5 days from Bengaluru |
| Delivery | 7-8 days across India |
| Support | 24/7 via Email and WhatsApp |
Key Features
- Exceptional Strength-to-Weight Ratio: Carbon fibre composite delivers tensile strength of 600-700 MPa at only 1.6 g/cm3 density, enabling lightweight structural designs that reduce overall system mass by 75% compared to aluminium alternatives
- Dimensional Consistency: Pultrusion manufacturing process ensures uniform wall thickness of 1mm with tight tolerance control, critical for precision-fitted assemblies and modular construction applications
- Superior Stiffness: Flexural modulus of 230-250 GPa provides exceptional rigidity for vibration-sensitive applications like drone arms, measurement instruments, and precision machinery without requiring increased wall thickness
- Chemical and Environmental Resistance: Epoxy resin matrix resists corrosion, UV degradation, moisture absorption, and chemical exposure, eliminating maintenance requirements in harsh outdoor or industrial environments
- Excellent Fatigue Performance: Carbon fibre composites exhibit superior fatigue resistance compared to metals, maintaining structural integrity under cyclic loading conditions typical in robotics and automated systems
- Easy Machinability: Can be precisely cut, drilled, and fitted using standard tools without delamination, enabling rapid prototyping and custom modifications in field applications
Applications and Use Cases
- Drone and UAV Construction: Use as structural booms, arm extensions, and landing gear supports where weight reduction directly increases payload capacity and flight duration while maintaining rigid frame geometry
- Precision Robotics: Ideal for robotic arm segments, joint linkages, and actuator housings requiring high stiffness-to-weight ratio to minimize inertial loads and improve response accuracy in industrial automation
- Aerospace and Model Engineering: Suitable for aircraft fuselage components, control surface spars, and scale model structures where composite construction meets stringent weight specifications and fatigue requirements
- Telescopic and Retractable Mechanisms: Excellent for telescoping poles, antenna booms, and extendable structures where the combination of lightweight design and torsional rigidity prevents binding and ensures smooth operation
- Vibration Damping Structures: Applied in precision measurement equipment, optical benches, and sensitive instrumentation where carbon fibre's inherent damping properties reduce resonance and improve measurement accuracy
- Automotive and Racing Applications: Used in roll cages, suspension components, and chassis reinforcement where high strength and minimal weight contribute to improved performance and handling characteristics
How to Use
Begin by measuring and marking your required length on the pultruded carbon fibre tube using a pencil or marker. For cutting, use a fine-toothed saw, band saw, or rotary cutting tool with appropriate speed settings between 2000-5000 RPM to prevent edge splintering and resin melting. Support the tube firmly during cutting to prevent vibration-induced delamination. After cutting, smooth any rough edges using fine sandpaper or a deburring tool, working perpendicular to the fibre direction to avoid creating stress concentration points.
For drilling, use carbide or diamond-coated drill bits at moderate speeds with steady feed rates. Pre-drill pilot holes to prevent wandering, particularly critical when creating precision-fitted assemblies. When joining tubes, consider using mechanical fasteners with washers to distribute load across the composite surface, or apply two-part epoxy adhesive specifically formulated for carbon fibre bonding. Allow adhesive to cure fully per manufacturer specifications before subjecting joints to load. For assembly into larger structures, ensure proper alignment and use jigs or fixtures to maintain dimensional accuracy during curing. Store tubes in a dry environment away from direct sunlight to preserve resin properties and prevent UV-induced degradation over extended periods.
Frequently Asked Questions
What is the difference between pultruded and wound carbon fibre tubes?
Pultruded tubes are manufactured by pulling continuous fibre through a resin bath and heated die, creating excellent longitudinal strength and consistent wall thickness with minimal voids. Wound tubes are created by helically wrapping fibre around a mandrel, offering superior hoop strength and torsional resistance. For axial load applications and dimensional consistency, pultrusion is superior. For pressure vessels and torsional applications, winding is preferred. Our pultruded design excels in structural frameworks and precision assemblies.
Can I bond or glue these carbon fibre tubes together?
Yes, pultruded carbon fibre tubes can be effectively bonded using two-part epoxy adhesives specifically formulated for composite bonding. Clean surfaces with isopropyl alcohol and lightly sand with 120-grit sandpaper to improve adhesion. Apply epoxy evenly, clamp joints firmly, and allow full cure time per adhesive specifications, typically 24 hours at room temperature. For critical structural applications, combine adhesive bonding with mechanical fasteners using stainless steel bolts and washers to distribute loads across the composite surface and ensure long-term reliability.
What is the maximum operating temperature for these tubes?
Pultruded carbon fibre tubes with epoxy resin matrix typically maintain structural integrity up to 120-150 degrees Celsius for continuous exposure, with short-term tolerance to 180 degrees Celsius. Beyond these temperatures, the resin matrix begins to soften and lose mechanical properties. For high-temperature applications exceeding 150 degrees Celsius, consider polyimide or phenolic resin systems, though these are not standard for this product. Consult our technical team for temperature-specific application requirements.
How do I prevent delamination when cutting or drilling these tubes?
Delamination occurs when cutting or drilling generates excessive heat or vibration. Use sharp, fine-toothed cutting tools and maintain moderate speeds between 2000-5000 RPM for drilling. Support the tube firmly to minimize vibration, and consider using a backing plate when drilling to prevent exit splintering. For cutting, use a band saw or rotary tool with cooling to prevent resin melting. Always work perpendicular to the fibre direction when possible, and allow the tool to do the work without forcing, which generates excessive heat and stress.
Are these tubes suitable for load-bearing structural applications?
Yes, with proper design and engineering. These pultruded carbon fibre tubes deliver tensile strength of 600-700 MPa and flexural modulus of 230-250 GPa, making them suitable for load-bearing applications when properly sized and supported. Calculate required wall thickness based on applied loads, span length, and safety factors specific to your application. For critical structural applications, consult with a structural engineer to ensure proper design margins and safety factors. Our technical team can provide guidance on load calculations and design considerations.
When will I receive my order?
Orders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.
What is your return and warranty policy?
We offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.
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.
Why Buy from The Tech Depot
- Genuine Products: Sourced directly from authorized distributors with authentication
- Expert Team: Our technical team validates every product before listing
- Fast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse
- Pan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata
- Payment Options: COD, UPI, credit/debit cards, net banking, EMI available
- Technical Support: 24/7 expert guidance via email and WhatsApp
- Returns: 7-day return policy on manufacturing defects only
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