Custom OEM Aluminum Crittall Style Doors Supplier & Exporters

OEM aluminium Crittall doors utilize extruded 6063-T5/T6 alloy profiles engineered with internal structural web chambers and thermal polyamide breaks (PA66 GF25). Steel doors are solid rolled steel, which is significantly heavier, uninsulated (prone to thermal bridging and condensation in cold climates), and vulnerable to rust over time. Aluminium offers superior weather sealing, built-in multi-point locking tracks, zero rust, and full color customization via powder coating or anodizing at a lower overall production cost.

We provide two distinct grid construction options based on your design and performance requirements:
1. Simulated Divided Lites (SDL): Extruded aluminium grid bars are precision-bonded onto both exterior faces of a single double-glazed insulating glass unit (IGU) using high-tack structural VHB tapes, combined with internal spacer bars inside the glass. This provides the authentic Crittall look while maintaining maximum thermal U-value and acoustic sealing.
2. True Divided Lites (TDL): The aluminium sash profile is physically divided into individual smaller glass openings, with separate glass panes glazed into each individual grid cell. TDL is typically chosen for heavy-duty interior architectural partitions or historic restoration compliance.

KARON operates under an ISO 9001 certified quality management framework. Our architectural glass and profile assemblies hold compliance certifications for global import markets, including:
• United States: SGCC (Safety Glazing Certification Council) certified tempered and laminated glass.
• Europe: CE marking under EN 12150 standard for toughened safety glass.
• Australia & New Zealand: SAI Global AS 2208 and CSi PAS-Mark AS/NZS 2208 for single-pane and laminated glass units.
• Southeast Asia: Thailand TISI 965-2560 & 1231-2560, and Malaysia CIDB PPS certification (Permit Kelulusan Anjakan).

Yes. Every order is 100% manufactured to order based on your structural opening schedule or architectural CAD/BIM drawings. Our technical department reviews your door schedule, calculates profile wind-load deflection, recommends hardware weight ratings (e.g., German Siegenia, HOPPE, or CeeCer hardware), and issues formal 2D shop drawings with cross-sectional details for your sign-off before manufacturing starts.

Standard factory production time for custom aluminium Crittall door orders is 25 to 35 calendar days following shop drawing approval and deposit receipt. For export transit, frames and glass units are fully protected with protective film, corner edge guards, moisture-barrier wrapping, and packed inside fully enclosed fumigated plywood crates suitable for FCL (Full Container Load) or LCL (Less than Container Load) sea shipping.

For exterior entry or patio doors, we specify double or triple-glazed Low-E insulated glass units (e.g., 6mm Low-E + 12Ar + 6mm Toughened) filled with Argon gas to achieve low U-factors and solar heat gain coefficients (SHGC). For interior partitions, options include 8mm to 12mm single toughened glass, fluted/reeded decorative privacy glass, frosted glass, or acoustic laminated glass (5mm + 0.76PVB + 5mm) in clear or tinted finishes.

We execute a 4-stage quality control protocol: 1) Incoming raw aluminium profile wall thickness and powder coat micron testing; 2) Glass tempering clarity and edge stress testing; 3) Mock-up frame pre-assembly check to verify diagonal tolerances (within ±1.5mm), hardware latching alignment, and corner joint crimping tightness; 4) Pre-packing water spray and air permeability spot testing on sample production units.

Simply send your architectural window/door schedule, project CAD drawings, target quantity, glass preference, and site location to our engineering sales office. You can click the catalog request buttons on this page to initiate instant communication with our technical export specialists.