Custom OEM Aluminum Office Door Manufacturers & Factory

For commercial office doors experiencing hundreds of actuations daily, profiles must be extruded from prime architectural aluminum alloy 6063-T6 or 6061-T6. Standard residential extrusions (often 1.2mm to 1.4mm in 6063-T5) lack the tensile yield strength necessary to prevent hinge sag and corner deflection over time.

DERCHI commercial office door systems specify an extrusion wall thickness between 2.0mm and 3.0mm at structural load-bearing sections, including hinge mounting channels and lock pocket housings. This heavy-duty wall thickness guarantees thread engagement depth for stainless steel machine screws, maintaining precise door leaf alignment through millions of continuous operating cycles.

Achieving superior acoustic attenuation (Sound Transmission Class STC 40–45 dB / Rw 39–44 dB) while maintaining sleek, minimalist sightlines requires an integrated, multi-barrier engineering approach:

1. Asymmetric Laminated Glazing: Utilizing double acoustic PVB or Saflex acoustic interlayers sandwiched between glass lites of differing thicknesses (e.g., 6mm tempered + 1.52mm acoustic PVB + 8mm tempered). The differing thicknesses disrupt acoustic coincidence dips and resonance frequencies across mid-to-high speech bands.

2. Continuous Multi-Chamber Perimeter Sealing: Standard brush seals allow airborne sound leaks. We engineer dual-durometer co-extruded EPDM gaskets with a hollow compression bulb around the door jamb and head.

3. Heavy-Duty Mechanical Drop Seals: The bottom gap is the primary path for acoustic failure. Our integrated drop-down bottom seals utilize a spring-loaded mechanical scissor action triggered when the hinge pin closes, sealing the bottom gap tight against the finished floor.

To pass municipal building inspections, commercial fenestration products must possess authentic test reports from accredited third-party laboratories (e.g., NATA, Intertek, or TÜV Rheinland):

Australia & New Zealand: Compliance with AS 2047 (Windows and External Glazed Doors in Buildings) for wind pressure, air infiltration, and water penetration (DERCHI door systems achieve up to an N6 rating), as well as AS 1288 for human impact safety glazing.

North America: Compliance with AAMA/WDMA/CSA 101/I.S.2/A440 (NAFS), ASTM E90 for acoustic testing, and ANSI/BHMA standards for hardware life cycles. Fire-rated assemblies comply with UL 10B / UL 10C positive pressure testing.

Europe & International: Full CE mark conformity under EN 14351-1, with production operations audited under ISO 9001:2015 quality management systems.

Cross-border commercial shipping requires specialized packaging engineering. Standard corrugated boxing is inadequate for heavy aluminum and glass assemblies. DERCHI implements a rigorous 5-layer export crating protocol:

1. Surface Protection: Every aluminum profile is protected with a 70-micron low-tack protective film that leaves no chemical residue upon peeling.

2. Impact Wrapping: Fully assembled panels or knock-down framing elements are wrapped in multi-layered expanded polyethylene (EPE) pearl foam and shock-absorbing bubble wrap.

3. Corner Armor: Rigid heavy-gauge plastic corner caps protect every 45-degree mitered joint from dropping or lateral impacts.

4. Solid Plywood Crating: Goods are secured into fumigated, export-grade solid OSB/plywood crates (IPPC ISPM-15 compliant for Australian biosecurity) reinforced with internal wood bracing, rubber glass buffers, and steel strapping bands.

5. Desiccant Packs & Container Chocking: Industrial silica gel bags prevent moisture and salt condensation during sea freight, with crates tightly blocked and strapped inside containers to prevent cargo shifting.

Our OEM workflow ensures precision engineering and clear accountability throughout the procurement cycle:

Stage 1 - Schedule Analysis: Our engineering department reviews your door schedules, floor plans, and architectural specifications, clarifying opening rough dimensions, handing, acoustic requirements, and hardware prep.

Stage 2 - Detailed CAD/BIM Approval: Within 48–72 hours, we produce full shop drawings showing 1:1 cross-sectional extrusion details, glass pocket depths, hinge locations, floor clearances, and junction attachments for architect sign-off.

Stage 3 - Hardware Coordination & Pre-Milling: If specifying proprietary access-control hardware (e.g., Dormakaba, Schlage, SALTO), our CNC machines cut mortise pockets and wire raceways based on manufacturer CAD templates.

Stage 4 - Pilot Assembly & Quality Inspection: A pilot unit is fully assembled in our Foshan facility. Dimensional tolerances, squareness, finish uniformity, and smooth mechanical operation are documented via high-resolution photos and video reports before volume production commences.

For high-salinity coastal areas such as Sydney, Auckland, Miami, or Dubai, standard commercial paint systems degrade within 3 to 5 years. DERCHI provides specialized coastal-grade architectural surface finishing treatments:

1. Fluorocarbon PVDF Coatings (AAMA 2605): Featuring minimum 70% Kynar 500 / Hylar 5000 resin formulations applied in automated 3-coat or 4-coat systems. Tested to withstand 4,000+ hours of continuous neutral salt spray (ASTM B117) and 10+ years of South Florida weathering without film chalking or color shifts. Backed by a 20-year international warranty.

2. Qualicoat Seaside Class 2 Powder Coatings: Pre-treated with non-chromate chemical conversion coatings and acid etching to prevent filiform corrosion beneath the paint film.

3. Heavy-Anodized Architectural Finishes: Providing an oxide layer thickness of 20 to 25 microns (Class I architectural anodic finish), yielding superior surface hardness, abrasion resistance, and imperviousness to aggressive coastal air.