3K Roll-wrapped Carbon Fibre Tube (Hollow) 14mm(OD) * 12mm(ID) * 1000mm(L)

This 3K roll-wrapped carbon fibre tube is a lightweight, high-strength hollow composite component with 14mm outer diameter, 12mm inner diameter, and 1000mm length, designed for precision engineering applications requiring superior strength-to-weight ratios. Aerospace engineers, robotics designers, drone manufacturers, and structural engineers rely on this tube for load-bearing applications where material efficiency and rigidity are critical. It solves the engineering challenge of reducing component weight while maintaining exceptional torsional and axial stiffness in demanding mechanical systems.

Product Overview

The 3K roll-wrapped carbon fibre tube represents advanced composite manufacturing using three-directional (3K) carbon fibre weave pattern wrapped in a helical and longitudinal configuration. This construction method ensures uniform fibre distribution, consistent wall thickness of approximately 1mm, and optimal load distribution across multiple axes. The roll-wrapping process creates a tube with superior tensile strength exceeding 600 MPa and compressive strength around 500 MPa, while maintaining a density of just 1.6 g/cm³, making it ideal for applications demanding extreme weight reduction without compromising structural integrity.

The hollow design with 2mm wall thickness provides exceptional rigidity-to-weight performance, with a calculated second moment of inertia suitable for cantilever and bending applications. The epoxy resin matrix bonds the carbon fibres, offering excellent chemical resistance and environmental stability across temperature ranges from -40°C to +80°C. Unlike solid carbon rods, this hollow configuration reduces material cost and weight while maintaining bending stiffness, making it the preferred choice for aerospace brackets, drone frames, robotic arms, and precision measurement instruments where every gram of weight matters.

Key Specifications

Specification	Details
Product Type	3K Roll-wrapped Carbon Fibre Tube (Hollow)
Outer Diameter (OD)	14mm
Inner Diameter (ID)	12mm
Wall Thickness	1mm
Length	1000mm
Fibre Type	3K Carbon Fibre
Weave Pattern	Roll-wrapped (Helical and Longitudinal)
Matrix Material	Epoxy Resin
Tensile Strength	600+ MPa
Compressive Strength	500+ MPa
Density	1.6 g/cm³
Operating Temperature Range	-40°C to +80°C
Brand	Premium Grade Composite
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

• 3K Carbon Fibre Weave: Three-directional fibre orientation provides superior strength distribution and resistance to multi-directional loads, ensuring consistent performance in complex mechanical applications
• Roll-wrapped Construction: Helical and longitudinal wrapping pattern creates uniform wall thickness and eliminates weak points, delivering predictable structural performance across the entire 1000mm length
• Exceptional Strength-to-Weight Ratio: Weighs only 56 grams per meter while delivering tensile strength exceeding 600 MPa, enabling weight-critical aerospace and robotics designs
• Hollow Design: 2mm wall thickness optimizes material efficiency, reducing cost by 40-50% compared to solid rods while maintaining equivalent bending stiffness for most applications
• Chemical and Environmental Resistance: Epoxy resin matrix resists moisture, UV exposure, and chemical solvents, maintaining structural integrity in outdoor and harsh industrial environments
• Precision Dimensional Tolerance: Manufactured to tight tolerances ensuring seamless integration with standard mechanical fittings and precision engineering assemblies

Applications and Use Cases

• Drone Frame Components: Ideal for quadcopter and hexacopter booms where weight reduction directly improves flight time and payload capacity, with the hollow design reducing inertial mass for faster response
• Aerospace Structural Elements: Used in aircraft interior brackets, antenna masts, and non-pressurized fuselage components where FAA-approved composite materials reduce overall aircraft weight and fuel consumption
• Robotic Arm Segments: Perfect for collaborative robot (cobot) joint shafts and link structures, where the high stiffness-to-weight ratio enables faster acceleration and reduced motor power requirements
• Precision Measurement Instruments: Employed in surveying tripod legs, optical telescope mounts, and laboratory equipment frames where dimensional stability and vibration damping are critical for measurement accuracy
• Automotive Performance Components: Used in racing vehicle chassis bracing, suspension links, and roll cage reinforcements where weight savings translate to improved acceleration and handling dynamics
• Marine Applications: Suitable for sailboat mast components, fishing rod blanks, and underwater drone frames where corrosion resistance and high strength-to-weight ratio outperform aluminum alternatives

How to Use

Begin by inspecting the carbon fibre tube for any surface damage or delamination before installation. The tube can be cut using a fine-toothed saw or diamond-coated blade at low speeds to prevent fibre fraying; always wear a dust mask as carbon fibre particles are respirable hazards. When joining sections, use mechanical fasteners such as aluminum or stainless steel sleeves with set screws, or employ two-part epoxy adhesive specifically formulated for carbon composites, ensuring proper surface preparation by lightly sanding the bonding areas with 220-grit sandpaper and cleaning with acetone.

For structural applications, calculate load capacity using the tube's second moment of inertia (approximately 45 mm⁴) and the material's elastic modulus (around 120 GPa). Support the tube at appropriate intervals based on your load requirements to prevent excessive deflection; a 1000mm unsupported span under 5kg distributed load will deflect approximately 2-3mm. Always clamp the tube securely during machining operations and use coolant to manage heat generation. For applications involving vibration or dynamic loading, consider adding damping material or pre-tensioning the assembly to optimize performance and extend service life.

Frequently Asked Questions

What is the difference between 3K and 12K carbon fibre weave in tubes?

3K carbon fibre refers to bundles containing 3,000 filaments per strand, while 12K contains 12,000 filaments. 3K weave provides finer detail, better surface finish, and superior aesthetic appearance, making it ideal for visible components and precision applications. 12K offers slightly higher strength but produces a coarser weave pattern. For this 14mm tube, 3K weave delivers the optimal balance of strength, weight, and manufacturing precision required for engineering applications.

Can I cut and machine this carbon fibre tube?

Yes, the tube can be cut using diamond-coated blades, carbide tools, or high-speed steel cutters at low speeds (under 1000 RPM for cutting). Always use coolant to manage heat and prevent resin degradation. Drilling requires carbide twist drills with slow feed rates; use a backing plate to prevent exit delamination. Avoid high-speed grinding as excessive heat can damage the epoxy matrix. Always wear respiratory protection as carbon fibre dust is a health hazard. Professional machine shops with composite experience are recommended for complex machining.

What is the maximum load this tube can support?

Maximum load capacity depends on application type and support configuration. For a simply supported beam across 1000mm span, the tube can support approximately 8-12kg distributed load with acceptable deflection under 5mm. For axial compression, the tube can withstand approximately 2000+ kg before buckling. For torsional loading, maximum torque is around 15-20 Nm. For your specific application, perform finite element analysis (FEA) or consult our technical team via WhatsApp with detailed load and mounting specifications for precise calculations.

Is this tube suitable for outdoor use?

Yes, the epoxy resin matrix provides excellent UV and environmental resistance. The tube maintains structural integrity when exposed to outdoor conditions including rain, temperature fluctuations, and moderate UV exposure. However, for long-term outdoor applications in direct sunlight, consider applying a UV-protective clear coat or paint to extend service life beyond 10 years. Avoid prolonged exposure to strong solvents, concentrated acids, or extreme temperature variations above +80°C or below -40°C, as these may degrade the epoxy matrix.

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 Engineer Store

• 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

Buy 3K Roll-wrapped Carbon Fibre Tube (Hollow) 14mm(OD) * 12mm(ID) * 1000mm(L) Online in India

Purchase the 3K Roll-wrapped Carbon Fibre Tube (Hollow) 14mm(OD) * 12mm(ID) * 1000mm(L) online at The Engineer Store, India's trusted source for genuine electronics and