Tapered Carbon Fiber Tubes — Precision Filament Winding · Seamless Taper · Integrated High‑Strength Lightweight
1. Product Definition
Our tapered carbon fiber tubes are manufactured by CNC‑controlled filament winding of continuous T700/T800 prepreg onto a conical mandrel (±0.5°–3° taper), followed by hot‑press curing at 120 °C/0.6 MPa. Programmable fiber angles from 15°–75° ensure optimal circumferential and axial strength, eliminating the thickness variation and roundness errors common in manual winding.
2. Process Highlights
- Closed‑Loop Tension: ±2 N constant tension, inter‑ply voids < 1 %
- Gradient Winding: 55° hoop at large end → 15° axial at small end for increasing tip stiffness
- Wrinkle‑Free Technology: 90°–180° alternating start lines ironed flat to remove folds and resin pools
- One‑Shot Demolding: Water‑soluble or segmented steel mandrels, inner Ra ≤ 1.6 µm, no secondary machining
3. Technical Specifications
| Property | Typical Value |
|---|---|
| Density | 1.55 g/cm³ |
| Longitudinal Tensile Strength | 2 800–3 200 MPa |
| Longitudinal Modulus | 150–170 GPa |
| Hoop Modulus | 100–120 GPa |
| Operating Temperature | −50 °C to +180 °C |
| Coefficient of Thermal Expansion | 0.8 × 10⁻⁶ /°C |
| Interlaminar Shear Strength | 80–90 MPa |
4. Stock Dimensions
(1.5 mm wall; customizable 1–4 mm thickness)
| D₁ (mm) | D₂ (mm) | L (mm) | α (°) | Weight (g/m) | Example Use |
|---|---|---|---|---|---|
| 8 | 14 | 500 | 0.7 | 95 | Bicycle seat post arc |
| 10 | 18 | 600 | 0.8 | 135 | Fishing‑rod tip section |
| 12 | 22 | 1 000 | 0.6 | 220 | UAV propeller shaft |
| 14 | 26 | 1 200 | 0.5 | 320 | Robotic telescoping arm |
| 16 | 30 | 1 500 | 0.5 | 420 | Solar cleaning boom |
| 18 | 34 | 1 800 | 0.5 | 550 | Aerial rescue pole |
| 20 | 40 | 2 000 | 0.6 | 720 | Fire‑fighting antenna mast |
| 25 | 50 | 2 500 | 0.6 | 1 100 | Wind‑tunnel model support |
Custom Range: D₁ 6–60 mm, D₂ 10–120 mm; length 0.3–4 m; taper 0.3°–5°.
5. End‑Machining & Accessories
- Internal Threads: M4–M12 at small end, M6–M20 at large end, 10–25 mm depth
- Surface Options: 3K glossy/matte, UD black, custom decals, luminescent coating
- Coatings: PU UV clearcoat, fluorocarbon paint, phosphorescent powder
- Accessories: Aluminum taper plugs, stainless‑steel ball heads, quick‑release clamps
6. Applications
- Cycling: Tapered seat‑post arcs & monocoque forks
- Drones: Folding prop shafts & retractable landing legs
- Medical: Conical fixator pins & surgical retractor arms
- Industrial: Robot seventh‑axis extensions & inspection probes
- Sports: Hiking poles, ski shafts, oar blades, fishing rods
7. Ordering & Delivery
- MOQ: 1 stock tube; 30 custom tubes
- Lead Time: Stock 3 days; custom 10–15 days
- Packaging: Individual bubble wrap → foam → carton or crate
- Certification: Includes material batch report, RoHS, REACH, ISO 9001
Offline Contracts
All sales of our carbon fiber materials are conducted through offline contract agreements to ensure each order precisely meets your specifications, compliance requirements, and agreed payment terms. Please contact our sales team to initiate the contract process and discuss project details.
| name | value | unitCode | unitText |
|---|---|---|---|
| MOQ | 50 | PCS | |
| Lead Time | 5–20 | business days | |
| Material | Carbon Fiber | ||
| Size | Customizable (inner diameter / outer diameter / length) |
Resources
Our tapered carbon fiber tubes integrate seamless performance and graduated strength in one sleek profile—experience next‑level design.
