Wound
Layer
by Layer.
Carbon fiber, glass roving, and aramid spiral under tension around rotating mandrels — building pressure vessels, rocket tubes, and drive shafts to your exact winding program.
Axis Count
6-Axis CNC
Mandrel Dia.
Ø25–Ø1200 mm
Fiber Systems
CF / GF / Aramid
Compliance
ITAR / AS9100D
40%
Weight Reduction vs Steel
Typical composite replacement
6,200
PSI Burst Pressure
Proof-tested per ASTM D2290
±0.5°
Winding Angle Tolerance
6-axis CNC precision
AS9100D
Quality System
ITAR registered facility
Fiber & Resin
Architecture
Every winding program begins with material selection. We run carbon, glass, and aramid rovings with four qualified resin systems — matched to your service environment, not our inventory.
Active System
Carbon Fiber
T700 / T800 / IM7
| Property | Value |
|---|---|
| Tensile Strength (fiber) | 4,900 MPa |
| Tensile Modulus | 230–294 GPa |
| Fiber Density | 1.80 g/cm³ |
| Fiber Volume Fraction | 55–65% |
| Void Content (max) | < 2% |
Qualified Applications
Available Winding Angles
Qualified Resin Systems
150°C Tg
Epoxy (Wet Winding)
Primary system, broadest compatibility
110°C Tg
Vinyl Ester
Chemical resistance, O&G service
250°C Tg
Cyanate Ester
High-temp aerospace, propulsion
300°C Tg
Phenolic
Fire resistance, ablative applications
Data You Can
Certify From
Every production lot ships with a full data package: test reports, traveler, fiber certification, and dimensional inspection — traceable to raw material heat lot.
Referenced Test Standards
Split-Disk Tensile
Hoop tensile strength of wound cylinders — primary burst prediction method
Axial Tensile
Longitudinal tensile properties of filament-wound tubes under axial load
Hydrostatic Burst
Pressure-to-burst testing with strain gauge instrumentation at 5 locations
Fiber Volume
Matrix digestion to verify fiber volume fraction meets 55–65% specification
Void Content
Calculated void fraction from density measurements — process quality gate
Environmental
Thermal cycling, vibration, and humidity exposure for defense applications
Pressure Hierarchy
Burst Test Data
Full Test Report — PV-CF-001
PDF — ASTM D2585 burst data + strain plots
ITAR Registered Facility
All defense-category work performed under ITAR registration. Controlled documentation, cleared personnel, secure winding cell.
Built for the
Application,
Not the Catalog
Three distinct service environments. Three distinct material and process strategies. Each vertical has its own qualification pathway and documentation standard.
Combustion chambers on qualification timelines
Propulsion engineers sourcing rocket motor cases and combustion chambers need dimensional repeatability and full material traceability — not just a quote. We run ±15° helical patterns for axial-load-dominated tubes and ±55° for internal-pressure-dominated vessels, with winding programs archived for lot-to-lot repeatability.
Typical Parts
Typical OD
Ø75–Ø450 mm
Winding
±15°/±55°/90°
Fiber
T800 / IM7 CF
Resin
Cyanate Ester
Replacing corroded steel pipe — permanently
Composite pipe wound at ±55° provides equivalent or superior hoop strength to steel at 40–60% of the weight, with immunity to H₂S and chloride corrosion. Procurement leads replacing aging steel pipe strings specify our glass/vinyl-ester system for sour-service and offshore environments where steel wall loss rates exceed maintenance budgets.
Typical Parts
Pipe OD Range
Ø50–Ø600 mm
Winding
±55° + 90° Hoop
Fiber
E-Glass / S-Glass
Resin
Vinyl Ester
Shave 40% off airframe weight — without renegotiating the spec
Defense program managers running structural mass budgets tight find composite cylinders replace aluminum and steel tube-and-lug assemblies without tool changes to surrounding hardware. We produce to MIL-SPEC dimensional tolerances with full first-article inspection packages, ITAR-controlled documentation, and cleared personnel for classified programs.
Typical Parts
Weight Savings
35–45% vs Al
Winding
±45°/±55°/90°
Fiber
CF / Aramid Hybrid
Inspection
FAI + MIL-STD-105
The Winding
Design Guide
84 pages covering winding angle selection, wall thickness calculation, fiber volume optimization, resin system compatibility, and first-article inspection requirements. Written for engineers, not marketing.
Guide Contents
Winding Angle Theory
Geodesic vs. non-geodesic paths, netting analysis, angle optimization
Wall Thickness Calculation
Netting analysis, laminate theory, safety factor selection
Fiber Volume & Void Content
Wet winding resin content, bath tension, process controls
Resin System Selection
Tg requirements, service environment, cure cycle design
Qualification Pathway
ASTM test matrix, FAI requirements, production lot sampling
Drawing & GD&T Requirements
How to specify a wound composite part — what to call out, what to omit
Winding Design Guide
PDF — 84 pages — Immediate download after submission
Ready to discuss your program?
Send us a drawing or describe the part — we'll respond with a preliminary winding program and timeline.