Drone-Grade Carbon Fiber Round Tube | Lightweight · High Strength · Customizable

Drone‑Grade Carbon Fiber Round Tube | Lightweight · High Strength · Customizable

Product Overview

The drone‑grade carbon fiber round tube (carbon fiber tube for drone) is a hollow structural component made of high‑performance carbon fiber composite. It is designed for core load‑bearing parts of UAVs such as fuselage frames, arms, and landing gear. With its unique “lighter than aluminum, stronger than steel” characteristics, carbon fiber tubes are gradually replacing traditional metal tubes in aerospace and drone applications. The product is 100% pure carbon fiber, manufactured using a roll‑wrapping process followed by high‑temperature curing. It combines lightweight, high strength, corrosion resistance, and fatigue resistance, making it the ideal choice for professional UAVs and model aircraft enthusiasts seeking a structural upgrade. Whether you are looking for a lightweight drone arm or high‑strength carbon fiber structural parts (high strength carbon fiber tubing), our carbon fiber round tubes meet the most demanding engineering requirements. We also offer carbon fiber square tubes for different cross‑sectional needs. Our products are widely used as UAV structural components and are a long‑term trusted choice for industry customers.

✨ Core Advantages: Lighter & Stiffer – One Tube Rewrites Flight Performance

Lightweight Revolution

Carbon fiber round tubes have a density of only about 1.6 g/cm³, less than 1/4 that of ordinary steel. Compared to steel tubes of the same size, weight is reduced by about 70%; compared to aluminum alloy tubes, weight is reduced by about 30%. One customer replaced their aluminum drone arms with our carbon fiber tubes, achieving a 25% weight reduction and extending flight time by 15 minutes, while maneuverability became significantly more agile. Every gram saved translates into longer endurance and more responsive flight. This is exactly why custom carbon fiber tubes and high modulus carbon fiber are making a huge impact in the drone industry.

Superior Mechanical Properties

The tensile strength of our carbon fiber round tubes reaches over 3000 MPa, which is 6‑12 times that of ordinary steel. The round cross‑section naturally provides excellent bending and torsional resistance – drone arms use round tubes instead of square tubes precisely because the circular shape evenly withstands multi‑directional forces, effectively suppressing sudden torque peaks during motor start/stop. This means more stable attitude control and a more reliable airframe during extreme maneuvering. Our carbon fiber tubes are optimized for drone frame tubing and lightweight carbon fiber rod applications.

Weather & Corrosion Resistance

Unlike traditional metal tubes that easily oxidize and rust in humid or acidic/alkaline environments, carbon fiber has excellent chemical stability, maintaining its mechanical performance over the long term even in corrosive conditions. Combined with a low coefficient of thermal expansion, our tubes maintain high dimensional accuracy even under large temperature variations, without creeping, effectively extending the service life and maintenance cycle of your UAV.

Tailored Performance Design

Carbon fiber composites offer unique design flexibility. By adjusting the prepreg layup angles (0°, ±45°, 90°, etc.), we can precisely optimize the stiffness and load‑bearing capacity in different loading directions. Each tube can be custom‑layered according to the specific stress conditions of your drone – truly “performance on demand”.

Product Features

Material Specification:

Made from 3K carbon fiber twill or plain weave prepreg (3k carbon fiber tube), uniformly rolled on a tube rolling machine and cured in an autoclave to ensure a dense, bubble‑free wall. Options include 1K, 3K, 6K, 12K, 24K tow sizes.

Dimension Range：

Outer diameter from 4mm to 600mm, length up to 2500mm, wall thickness customizable from 1mm to 30mm. From the slim arms of micro FPV drones to the main load‑bearing beams of large industrial UAVs, you will find the right size.

Surface Finishes:

Available in twill glossy, twill matte, plain glossy, plain matte (including matte finish carbon tube). We also support custom colors such as red, blue, orange, green, silver (custom color carbon fiber), with the color integrated into the resin layer for a long‑lasting, non‑fading appearance.

Process Guarantee:

Using the mainstream roll‑wrapping process (carbon fiber roll wrapped tube), followed by sanding, precision cutting, and dimensional inspection to ensure every tube has a clean cut, smooth surface, and meets tolerance requirements.

Applications

Carbon fiber round tubes are the core material for lightweight structural design in drones and are used in a wide range of scenarios:

Drone Arms (Frames) – As the most critical load‑bearing structural component of multi‑rotor UAVs, our carbon fiber drone arm provides lightweight, high rigidity, and excellent bending/torsional resistance, helping the drone stay stable during takeoff, hard braking, and windy conditions.

Landing Gear – Landing gear must withstand impact loads. Our tubes are lightweight and provide good energy absorption, effectively cushioning landing shocks – the ideal drone landing gear tube.

Fuselage Frames & Connecting Rods – Used as longitudinal supports between top and bottom plates, telescopic rods, or wing connectors, building a sturdy airframe skeleton.

RC Models & Aerial Photography Gear – Widely used in fixed‑wing models, helicopters, FPV quads, and camera drones for gimbal supports, camera rails, etc., especially suitable as FPV carbon tube.Industrial & Special Drones – Perfect for logistics drones, surveying drones, agricultural spraying UAVs where structural weight is critical, helping increase payload capacity and endurance – covering comprehensive UAV structural parts.

Product Specifications

Parameter	Range
Outer Diameter (OD)	4mm – 600mm
Inner Diameter (ID)	Customized by wall thickness
Wall Thickness (WT)	1mm – 30mm
Length	100mm – 2500mm (customizable longer)
Carbon Conten	100% pure carbon
Tensile Strength	≥3000 MPa
Operating Temperature	-30℃ to +150℃
Fiber Tow Sizes	1K / 3K / 6K / 12K / 24K
Weave Pattern	Twill / Plain
Surface Gloss	Glossy / Matte
Custom Colors	Black, Red, Blue, Orange, Green, Silver, etc.
Manufacturing Process	Roll Wrapping + Autoclave Curing

Customization Note:

All above specifications can be flexibly combined. Outer diameter, wall thickness, length, layup angles, surface texture, and color can be tailor‑made according to your project requirements. We offer a variety of carbon fiber tube sizes – for example, a 20mm outer diameter carbon fiber rod (carbon fiber rod 20mm) is a popular choice for industrial drones. As a professional high strength carbon tube supplier, we keep standard sizes in stock, accept custom drawings and OEM orders, and MOQ is negotiable (some sizes start at 1 piece).

Shipping & Packaging

Carbon fiber tubes need proper protection during transport. Each batch is individually wrapped with cardboard + bubble wrap inner lining, and both ends are sealed with foam caps to avoid impact damage to the tube ends and surface. For multi‑tube bulk shipments, we use high‑strength strapping bands plus outer cartons or wooden pallets. Transportation must avoid rain, moisture, direct sunlight, and high temperatures; store in a cool, dry place. We support courier, road freight, air freight, and sea freight. For bulk orders, pallet loading is available upon request. We provide professional carbon fiber tube shipping, supporting worldwide wholesale carbon tube and fast delivery of OEM carbon fiber parts.

Frequently Asked Questions (Q&A)

Q1: What are the main advantages of carbon fiber tubes over aluminum alloy tubes?

A1: Three main aspects. First, carbon fiber tubes are about 30% lighter than aluminum, significantly reducing UAV weight and extending flight time. Second, carbon fiber’s tensile strength is more than 5 times that of aluminum, with much higher stiffness, providing better resistance to bending/torsion and more precise flight control response. Third, carbon fiber does not suffer from electrochemical corrosion in humid or salt‑spray environments, making it ideal for outdoor, coastal, or agricultural spraying applications.

Q2: How do I choose the right outer diameter and wall thickness for my drone?

A2: It depends on your drone’s wheelbase, takeoff weight, and power setup. A general guideline: FPV drones (<250mm wheelbase): OD 6‑8mm, WT 0.8‑1.0mm Aerial photography drones (~500mm wheelbase): OD 12‑16mm, WT 1.0‑1.5mm Large agricultural/industrial drones (>1m wheelbase): OD 20‑30mm, WT 1.5‑2.5mm If you have design drawings or a damaged sample, you can send them to us for free matching advice.

Q3: What information do I need to provide for a custom order?

A3: For accurate quoting and production planning, please provide: ① Outer diameter & wall thickness (in mm) ② Length (in mm) ③ Required quantity ④ Surface weave (twill/plain) and gloss (glossy/matte) ⑤ Specific color required (if any) ⑥ Special layup angles (e.g., more 0° fibers for axial stiffness)

Q4: Do carbon fiber tubes conduct electricity? What should I watch out for during assembly?

A4: Yes, they conduct electricity. Carbon fiber has a resistivity of about 1.5×10⁻³ Ω·cm. Never use carbon fiber tubes as insulating structural parts, and do not let bare wires touch the tube surface – this could cause a short circuit or damage the flight controller. When mounting motors or the flight controller, use plastic washers or insulating tape between the tube and electronic components. Also, when cutting or sanding carbon fiber tubes, wear an N95 mask and work in a well‑ventilated area to avoid skin irritation from fine dust.

Q5: Are these tubes impact‑resistant? Can they be repaired if bent?

A5: Carbon fiber is “strong but brittle”. It can handle high tensile loads but does not absorb impact well. Compared to aluminum, it is more likely to crack or split in a severe crash. Once cracked or delaminated, do not continue using it – internal damage could cause sudden in‑flight failure. Carbon fiber tubes cannot be straightened like metal tubes; they must be replaced. To reduce crash damage, consider installing rubber dampers or flexible propeller guards at the arm ends.

Q6: What quality checks are performed before shipment?

A6: Every batch undergoes multiple inspections: Visual inspection of all tubes (no bubbles, wrinkles, or visible scratches) Dimensional sampling – OD, ID, and length measured with digital calipers; tolerance controlled to ±0.05mm (±0.02mm for high‑precision requirements) Customers have 7 days upon receipt for initial inspection; quality issues can be returned or exchanged.

Q7: What is the MOQ? Can I buy a single sample?

A7: For standard stock sizes, MOQ is 1 piece. For non‑standard custom sizes (e.g., special outer diameters or extra lengths), MOQ is generally 10 pieces (depending on tooling and process complexity). We strongly recommend new customers order samples first to verify fit before placing a bulk order.

Q8: Can you ship internationally? Any customs concerns?

A8: Yes, we ship worldwide. Carbon fiber tubes are non‑dangerous goods, HS code typically 6815 (carbon fiber articles). For export, we provide commercial invoices and packing lists; the material is clearly stated as “carbon fiber composite”. No special export license is required. Some countries may impose anti‑dumping duties or import restrictions on carbon fiber products – please check your destination country’s tariff policies before ordering.

Q9: Do you offer volume discounts?

A9: Yes, we offer tiered pricing – discounts for 50 pieces, 200 pieces, 500 pieces and above. Long‑term partners can sign annual frame agreements. Feel free to send us an inquiry.  

Why Choose Our Carbon Fiber Tubes?

✅ 13 years of deep experience & professional R&D team – Since 2013, we have focused on carbon fiber composite manufacturing

✅ ISO 9001:2015 certified, full traceability – Our factory is ISO 9001:2015 certified.

✅ Free technical support – Our composite engineers help you at no cost

✅ Flexible MOQ & fast prototyping – Standard stock sizes

✅ Global shipping & worry‑free after‑sales – We ship via courier (DHL/FedEx/UPS)  

Take Action Now: Ready to Upgrade Your Drone Performance?

Contact us via the following channels to get a quote :  

Email: market@hezongmaterials.com

WhatsApp / WeChat: +86 15763139515

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