3K Roll-wrapped Carbon Fiber Tube (Hollow)30mm(OD)*26mm(ID)*500mm(L)

The 3K Roll-wrapped Carbon Fiber Tube is a premium hollow composite structure featuring a 30mm outer diameter, 26mm inner diameter, and 500mm length, engineered for applications requiring exceptional strength-to-weight ratios. Aerospace engineers, robotics developers, and drone manufacturers rely on this component to construct lightweight structural frameworks that maintain rigidity while minimizing mass. This tube solves the critical engineering challenge of balancing structural integrity with weight reduction in precision applications where every gram matters.

Product Overview

The 3K Roll-wrapped Carbon Fiber Tube is manufactured using a roll-wrapping process where carbon fiber fabric is progressively wound around a mandrel and cured under controlled conditions. The 3K designation refers to the carbon fiber tow count (3,000 filaments per strand), which provides optimal balance between tensile strength and workability. This specific construction method creates a uniform, consistent wall thickness with excellent fiber-to-resin ratio, resulting in superior mechanical properties compared to standard pultrusion methods. The hollow design with a 4mm wall thickness (calculated from OD and ID) offers exceptional torsional rigidity while maintaining minimal weight, making it ideal for precision engineering applications.

The roll-wrapped construction ensures superior circumferential strength and excellent resistance to compression loads perpendicular to the tube axis. The carbon fiber reinforcement provides tensile strength exceeding 3,500 MPa with a modulus of elasticity around 230 GPa, making this tube suitable for high-performance structural applications. The smooth inner and outer surfaces enable seamless integration with mechanical components, fasteners, and connectors. The 500mm length provides sufficient material for prototyping, testing, and component fabrication while remaining compact for shipping and storage.

Key Specifications

Specification	Details
Product Type	3K Roll-wrapped Carbon Fiber Hollow Tube
Outer Diameter (OD)	30mm
Inner Diameter (ID)	26mm
Wall Thickness	2mm (calculated)
Length	500mm
Carbon Fiber Grade	3K Roll-wrapped
Tensile Strength	Approximately 3,500 MPa
Elastic Modulus	Approximately 230 GPa
Weight per Unit	Approximately 95-105 grams
Surface Finish	Smooth, ready for machining or assembly
Brand	Original Manufacturer
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 Roll-wrapped Carbon Fiber Construction: Provides superior circumferential strength and uniform fiber distribution with tensile strength exceeding 3,500 MPa for high-performance structural applications
• Optimal Strength-to-Weight Ratio: Weighs approximately 95-105 grams while maintaining exceptional rigidity, enabling lightweight designs in aerospace and robotics applications
• Precise Dimensional Tolerances: 30mm OD and 26mm ID with consistent 2mm wall thickness ensures perfect fit with mechanical components and enables seamless assembly
• Excellent Machinability: Smooth surface finish allows for drilling, threading, and cutting without delamination, supporting custom fabrication and integration
• High Modulus of Elasticity: Approximately 230 GPa provides exceptional stiffness for precision applications requiring minimal deflection under load
• Chemical and Corrosion Resistance: Carbon fiber composite resists moisture absorption and environmental degradation, ensuring long-term performance in varied conditions

Applications and Use Cases

• Drone and UAV Frame Construction: Serves as primary structural element in quadcopter and hexacopter frames where weight reduction directly increases flight time and payload capacity
• Aerospace Component Manufacturing: Used in aircraft fuselage reinforcement, wing spar construction, and control surface actuator housings requiring extreme strength-to-weight performance
• Robotics and Automation: Ideal for robotic arm segments, joint housings, and structural supports in collaborative robots where precision and lightweight design are critical
• Precision Instrumentation: Functions as protective tubing for optical sensors, laser systems, and measurement instruments requiring dimensional stability and vibration damping
• High-Performance Sporting Equipment: Incorporated into racing bicycle frames, archery arrow shafts, and fishing rod blanks where stiffness and minimal weight provide competitive advantage
• Automotive and Racing Applications: Used in roll cage construction, suspension components, and aerodynamic support structures in high-performance and racing vehicles

How to Use

Begin by inspecting the carbon fiber tube for any surface defects or damage before installation. The tube can be cut to custom lengths using a fine-toothed saw or specialized carbon fiber cutting tools, though the supplied 500mm length accommodates most standard applications. When drilling holes, use sharp carbide-tipped drill bits at moderate speeds with continuous cooling to prevent fiber delamination. For assembly, the smooth inner diameter allows insertion of threaded inserts or aluminum mandrels for mechanical fastening. Apply epoxy adhesive or mechanical fasteners at connection points, ensuring proper clamping force distribution to avoid crushing the thin-walled structure.

For structural applications, calculate load-bearing capacity based on the tube's moment of inertia (approximately 1,235 mm^4 for this geometry) and apply appropriate safety factors. The tube exhibits excellent resistance to torsional loads due to the circumferential fiber orientation. When exposed to high temperatures, note that standard epoxy resins maintain properties up to 120-140 degrees Celsius. For aerospace or critical applications, validate performance through non-destructive testing such as ultrasonic inspection. Store the tube in a cool, dry environment away from direct sunlight to prevent resin degradation. If machining is required, secure the tube firmly in a padded vice to prevent crushing while maintaining concentricity.

Frequently Asked Questions

What is the difference between 3K and 12K carbon fiber in tube construction?

3K carbon fiber contains 3,000 filaments per tow, while 12K contains 12,000 filaments. The 3K specification in this tube provides better workability, easier cutting and drilling, and superior surface finish compared to 12K. However, 12K offers slightly higher strength-to-weight in applications not requiring frequent machining. For this 30mm tube diameter, 3K is optimal as it provides excellent mechanical properties while maintaining machinability for custom fabrication and assembly requirements.

Can this carbon fiber tube be cut or drilled without delamination?

Yes, the 3K roll-wrapped construction is specifically designed for machinability. Use sharp carbide-tipped drill bits at speeds between 500-1500 RPM with continuous cooling or cutting fluid to prevent heat buildup. For cutting, employ a fine-toothed saw (80+ teeth) or specialized carbon fiber cutting tools. Apply masking tape around the cutting area to minimize fiber fraying. The roll-wrapped construction provides better edge integrity than chopped fiber composites, making it suitable for precision machining applications.

What is the maximum load this tube can withstand?

The maximum load depends on the application type. For compression along the axis, this tube can withstand approximately 8,000-12,000 Newtons before buckling, depending on support conditions. For bending loads, the moment of inertia is approximately 1,235 mm^4, allowing calculation of deflection using standard beam equations. For torsional loads, the polar moment of inertia is approximately 2,470 mm^4. Always apply appropriate safety factors (typically 2-4x) based on application criticality. For precise load calculations, consult engineering analysis or contact our technical support team.

Is this tube suitable for aerospace applications?

Yes, the 3K roll-wrapped carbon fiber tube meets requirements for non-critical aerospace structural components and prototyping applications. However, for flight-critical components, verify compliance with specific aerospace standards such as AS9100 certification and material specifications. The tube's consistent construction and high strength-to-weight ratio make it suitable for experimental aircraft, UAV frames, and secondary structural elements. For certification requirements, contact our technical team to provide material test reports and documentation.

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. Express shipping options may be available for urgent requirements. Track your order status via email and WhatsApp updates from the moment of dispatch.

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. The warranty covers delamination, surface cracks, and dimensional inconsistencies caused during manufacturing. This warranty does not apply to damage from user misuse, improper machining, or mechanical failure during application. Provide photographic evidence of defects for warranty claims.

Are bulk discounts available?

Yes, wholesale pricing for orders of 10 or more units is available. Contact our sales team via WhatsApp or email for a customized bulk quote. We also offer volume discounts for regular orders and can arrange special packaging for large quantities. Our team will provide competitive pricing and flexible payment terms for bulk purchases.

Why Buy from The Engineer Store

• Genuine Products: Sourced directly from authorized distributors with authentication and material verification
• Expert Team: Our technical team validates every product before listing and provides engineering consultation
• Fast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse with tracking updates
• Pan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat
• Payment Options: COD, UPI, credit/debit cards, net banking, and EMI available for convenience
• Technical Support: 24/7 expert guidance via email and WhatsApp from experienced engineers
• Returns: 7-day return policy on manufacturing defects with hassle-free replacement
• Quality Assurance: Every tube inspected for dimensional accuracy and surface integrity before shipment

Buy 3K Roll-wrapped Carbon Fiber Tube (Hollow)30mm(OD)*26mm(ID)*500mm(L) Online in India

Purchase the 3K Roll-wrapped Carbon Fiber