Certified Plastic Components for Aircraft Cabin Interiors

DEMGY delivers engineered aircraft interior plastics for major civil and military platforms, supporting the requirements of Airbus, Boeing and Tier‑1 suppliers across cabin systems, environmental control systems and high‑reliability interior structures.
Manufacturing capabilities cover 5‑axis machining, thermoplastic injection, composite overmolding, and complex multi‑level assemblies, all under AS9100, NADCAP, Boeing Class I & II and Airbus APQP quality frameworks.

DEMGY engages in co-development from the earliest material definition phase, selecting FST-qualified thermoplastics — PEI (Ultem®), PEEK, PEKK, PPS, PPSU — against Airbus ABD0031 and Boeing BMS requirements. With manufacturing sites in Germany (DEMGY EIS) and North America (DEMGY Pacific), the group offers a dual-source capability across both continents, reducing single-source risk on long-running civil aviation programs.

Engineered Polymers for Aviation Interiors

Aircraft interior applications demand FST compliance, dimensional stability, chemical resistance, precision tolerances and robust lifecycle performance.
Aerospace‑grade polymers processed include:

High‑Performance Materials

• PEI (Ultem®) — FST‑critical components for cabin panels, window surrounds, structural housings
• PPSU (Radel®) — ECS ducting, ventilation modules, high‑temperature cabin parts
• PEEK — Metal‑replacement for high‑load brackets, hydraulic & fuel system fittings
• PEKK — Structural cabin brackets, FST-critical semi-structural parts, metal-replacement applications
• PPS — ECS components, chemically resistant housings, high-temperature ducting
• PC — Impact‑resistant grids, transparent technical parts, galley mechanisms
• PA (Nylon) — Latches, locks, abrasion‑resistant galley elements
• PMMA — Optical‑grade lenses, wing‑tip light covers

These materials are selected to satisfy Airbus ABD standards, Boeing BMS requirements, and FAA/EASA certification environments.

Applications for Airbus, Boeing & Tier‑1 Interiors

Cabin & Passenger Accommodation

• Sidewall panels
• Window surrounds assemblies
• Overhead bin closeouts
• Passenger tray tables
• Armrest soft‑cap components
• Galley guides & cupholders
• Class dividers, partitions
• Hat racks (overhead stowage bin liners)
• Dado panels
• Monument claddings (galley and lavatory fascias)
• Latch & hinge assemblies (kinematically constrained mechanisms)
• MID-integrated armrest caps (plastronics / embedded electronics)

Environmental Control Systems (ECS)

• Ventilation grids and diffusers
• ECS nozzles (incl. PEI 22’’ assemblies)
• Air ducts & air‑distribution elements
• Passenger Service Units (PSU) housings
• Attendant modules (AMOD)
• Oxygen mask support structures

Structural Interior Components

• Nylon locking systems
• Galley trolley guide tracks
• PRM assistance handles

Each application is manufactured to meet Airbus A320/A330/A350/A380, Boeing 737/777X, and Tier‑1 system integrator specifications.

Value Proposition for Aerospace OEM & Tier‑1 Buyers

• Polymer Machining
  Qualification-ready machining for high-complexity 5-axis components, aligned with Boeing D6-51991 requirements. Reduces programme validation risk and accelerates technical approval on B737 MAX, B777X and B787 platforms, with FAI documentation packages delivered as standard.

• In‑House Tooling for Faster Industrialisation
  Internal mold design and fabrication support rapid engineering changes across Airbus APQP Gate reviews and Boeing SQEP milestones. Secures supply chain timelines and lowers tooling-related risk on A320neo, A350 and B737 MAX programme cycles.

• Metal‑to‑Plastic Conversion for Weight Savings
  High-performance thermoplastics — PEEK, PEKK, PPSU — replace aluminium parts in cabin and ECS systems, delivering measurable mass reduction per CS-25 and FAR 25 certification requirements. Directly supports DOC (Direct Operating Cost) reduction targets for airline operators on next-generation narrowbody and widebody platforms.

• Industrial Flexibility for Program Management
  Injection molding from 35T to 1250T, small-batch capability for DV/PV prototype phases, and stable long-term serial production for platform lifecycle support across A320neo, A350, B737 MAX and B787 program durations.

• Turnkey Assembly & Subsystem Delivery
  Structural bonding, ultrasonic welding, electrical module integration, painting and decorative finishing — with quality documentation (FAI/PPAP) and packaging adapted to Airbus and Boeing Tier-1 supply chain requirements, including VMI/CMI inventory solutions for line-of-fit delivery.

• Thermoplastic Composite Innovation
  Hybrid overmolding and advanced thermoplastic composite (TPC) solutions enable consolidation of multi-part cabin assemblies, reducing part count and assembly time for Tier-1 integrators.

Manufacturing & Engineering Capabilities

Core Processes

• 3- to 5-axis CNC machining of high-performance polymers
• Thermoplastic injection molding (35–715T)
• Thermoplastic composite forming
• Hybrid overmolding
• In‑house tooling
• Industrial FDM prototyping
• RFID tracking for full traceability

Value‑Added Services

• Structural bonding & ultrasonic welding
• Surface finishing & integrated painting
• Electrical component integration
• Design for Manufacturing (DFM) optimisation
• VMI/CMI inventory solutions
• FAI & PPAP documentation packages