Custom OEM Aluminium Arch Door Manufacturers & Factory

Our CNC hydraulic 3-roll stretch-bending equipment can achieve a minimum inner radius of 350 mm for non-thermal break slim stiles, and 450 mm – 500 mm for heavy-duty thermal break profiles (frame depths ranging from 70mm to 120mm). Tighter radii require specialized inner internal tooling mandrels to prevent cross-sectional buckling. We evaluate your exact CAD elevation to verify spring line ratios and tangent lengths before opening extrusion tooling.

Water ingress on curved doors typically occurs at spliced joint seams or inadequate compression seals along the arc. DERCHI resolves this through a continuous single-piece curved outer frame sash that eliminates horizontal apex mechanical miter joints. Furthermore, we install continuous molded vulcanized EPDM corner gaskets combined with internal concealed drainage weep channels and baffled deflector valves tested up to 700 Pa static water penetration resistance.

Yes. Our standard and custom aluminium door systems undergo physical testing under AS 2047 methods, achieving certified N6 wind ratings (positive and negative ultimate limit state pressures reaching 4500 Pa). Each order destined for Australia and New Zealand is supplied with comprehensive engineering test certificates, NFRC thermal simulations, and AS 1288 glazing compliance documentation to guarantee frictionless approval by local private certifiers and municipal building councils.

Absolutely. We manufacture all standard and complex curved architectural geometries: true Roman semi-circular arches (where radius equals half the opening width), segmental eyebrow arches, gothic pointed arches with welded apex keystones, low-rise Tudor four-centered arches, and parabolic elliptical curves. Our engineering team converts your rough opening survey or laser scanner measurements into exact parametric shop drawings with defined rise-and-run coordinates.

We partner with world-class hardware providers including Siegenia, GU, Hoppe, and Dormakaba, as well as our proprietary heavy-duty stainless steel hinge and pivot mechanisms. Available systems include motorized multi-point European hook-bolt locks, concealed heavy-duty hydraulic floor pivots (350kg capacity with 90° hold-open and soft-close damping), integrated electric strikes, and biometric fingerprint/keypad entry escutcheons engineered directly into the curved profile sashes.

To prevent dimensional twisting or transit vibration stress, all arched frames receive protective PE surface film, multi-layer corner guards, and bubble-wrap cushioning. Frames and pre-glazed leaves are packed into custom ISPM-15 certified heat-treated plywood crates reinforced with interior steel skeleton bracing and high-density foam saddles tailored to the arch curvature. Crates are secured within 20GP or 40HQ containers using industrial ratchet tie-downs and anti-moisture desiccant packs.

Typical manufacturing turnaround is 25 to 35 business days from final signed approval of CAD shop drawings and finish color swatches. For orders requiring custom extrusion die tooling for unique profile designs, add approximately 10 to 14 days for die fabrication and sample extrusion verification. Ocean freight duration varies by destination (e.g., 14-18 days to Sydney/Melbourne/Auckland; 22-28 days to US West Coast).

We offer a comprehensive 10-year structural warranty on extruded aluminium frames and weldment structural integrity, a 10-year warranty against IGU insulating glass seal failure and fogging, and a 5 to 10-year finish performance warranty against fading, flaking, or corrosion (depending on whether Qualicoat Class 2 powder coating or 3-coat Kynar 500 PVDF fluorocarbon finish is specified). Hardware systems carry a standard 5-year replacement warranty.