China Sound Insulation Interior Aluminum Alloy Door Manufacturer, Supplier, Factory

Engineered to redefine interior tranquility, our sound insulation interior aluminum alloy door seamlessly merges robust acoustic performance with sleek, modern design. Ideal for both residential and commercial applications, this door system addresses the growing demand for privacy and quiet in open-plan homes, busy offices, and hospitality venues. Whether you require a Residential Interior Aluminum Alloy Door to shield bedrooms from household noise, or a Commercial Interior Aluminum Alloy Door tailored for meeting rooms and healthcare facilities, the precision engineering ensures consistent sound reduction. For spaces that balance openness and quiet, the Tempered Glass Interior Aluminum Door option integrates laminated acoustic glass, transmitting natural light while deadening ambient noise. Alternatively, the Full Aluminum Panel Interior Door achieves maximum mass-driven STC ratings, making it the preferred choice for recording studios and confidential environments. Each configuration is backed by rigorous lab testing and customizable dimensions, offering a refined aesthetic without compromising on acoustic isolation.


The Sound Insulation Interior Aluminum Alloy Door is constructed around a thermally broken, high-density aluminum alloy frame that minimizes sound flanking paths. Its perimeter seal system features twin magnetic gaskets and an automatic drop-bottom seal that engages upon closing, effectively blocking airborne noise. The core can be specified as a solid aluminum honeycomb or a composite acoustic barrier, layered with damping compounds to disrupt vibration transfer. This structure allows the Sound Insulation Interior Aluminum Alloy Door to achieve weighted sound reduction indices (Rw) up to 42 dB, depending on glazing and panel selections. The minimalist aluminum profiles are finished in anodized or powder-coated surfaces resistant to corrosion, fingerprints, and daily wear, ensuring lasting performance in high-traffic corridors.

Key Performance Features

  • High-density aluminum alloy frame with thermal break and acoustic isolation pads.
  • Dual magnetic and compression seals for tight acoustic closure.
  • Automatic hidden drop-bottom seal that engages without floor contact damage.
  • Available in solid panel, glazed, or combination configurations.
  • Tempered or laminated acoustic glass options with PVB interlayer for enhanced STC/OITC values.
  • Customizable dimensions, swing direction, and threshold types.
  • Surface finishes: anodized silver, matte black, white, bronze, or custom RAL powder coating.
  • Concealed adjustable hinges with 3D alignment capability.
  • Optional accessories: acoustic door sweep, intumescent strips for fire-rated variants, smart lock integration.

Technical Specifications

Parameter Standard Configuration Optional Upgrades
Frame Material 6063-T5 aluminum alloy, 2.0 mm wall thickness Thermally broken frame for improved insulation
Leaf Thickness 45 mm (1.77 inches) 50 mm for higher STC requirements
Core Type Aluminum honeycomb with acoustic membrane Multi-layered particle barrier composite
Glazing Double-glazed: 5 mm tempered + 6 mm acoustic PVB laminated Triple glazing with varied air gaps; gas-filled units
Sound Rating (Rw) 36–38 dB (solid panel), 35–37 dB (glazed) Up to 42 dB (full panel with composite core)
Seal System Double magnetic gaskets + automatic drop seal Acoustic threshold plate for slab floor applications
Max. Leaf Size 2400 mm (H) x 1000 mm (W) single leaf Custom double-leaf assemblies up to 3000 mm width
Hardware Stainless steel concealed hinges, classic lever handle Anti-panic lock, keycard access, concealed closer
Finish Anodized satin silver (AA15), 15 μm Powder coating (60–80 μm), woodgrain transfer, custom RAL
Fire Rating Not standard; door is non-fire-rated Fire-rated model available (EI30, EI60) with intumescent seals

Application Scenarios

From luxury residential interiors to high-performance commercial settings, the Sound Insulation Interior Aluminum Alloy Door adapts effortlessly. In condominiums, it separates master bedrooms from open-plan living areas, while in recording and broadcast studios, it preserves critical audio fidelity. Corporate offices benefit from its clean design and acoustic confidentiality in executive suites, conference rooms, and phone booths. Healthcare facilities value the hygienic, non-porous surface and quiet operation for patient rooms and consultation areas. Furthermore, combinations with vision panels or full-glass designs maintain sightlines without sacrificing privacy, making this door a versatile solution for architects and interior designers seeking both form and function.

Installation is supported by a factory-prepared frame with adjustable jamb anchors and a detailed instruction set, ensuring a tight fit even in uneven rough openings. The aluminum alloy construction guarantees dimensional stability in varying humidity conditions, unlike traditional timber doors that may warp and compromise seal alignment. With a life cycle that easily surpasses 20 years and minimal maintenance needs—occasional cleaning and seal inspection—the system offers a compelling long-term value for noise-sensitive environments.

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