1. Dimensional Accuracy
Computerized CNC cutting equipment ensures millimeter-level accuracy for custom angles, mitered joints, and glass bead profiles across complex architectural schedules.
Factory Infrastructure
Inside SAGA's Precision Manufacturing Hub
Located in Fuzhou City, Fujian Province, China, SAGA Aluminum Doors & Windows Co., Ltd. operates a modern 10,000+ m² fabrication facility with automated CNC production lines, 8 independent processing workshops, and specialized testing laboratories.
10,000+ m²
Factory Building Area
5,000 m²
Monthly Production Capacity
16+ Years
Export Manufacturing Experience
100% Passed
Pre-Shipment Quality Testing
Production Excellence
Core Engineering Principles Driving Our Factory
Every window and door frame is crafted under strict quality control standards to deliver structural strength, high energy efficiency, and long-lasting performance for overseas commercial and residential projects.
2. Meticulous Craftsmanship
Experienced technicians carefully clean frame corners, inspect powder-coated surfaces, and assemble hardware components to achieve smooth operation and flawless aesthetics.
3. Functional Simulator Testing
Every fabricated sash and door leaf undergoes rigorous fitting and operational verification on our in-house test wall simulator prior to protective packaging.
4. 5-Layer Export Protection
Heavy-duty protective film, corner guards, bubble wrapping, moisture-proof sheets, and solid fumigated wooden crates guarantee zero transport damage during ocean freight.
Quality Assurance
3-Tier Quality Control Plan (IQC - IPQC - FQC)
To comply with international standards such as AS2047, NZS4211:2008, AS1288, NAFS, and Miami-Dade TAS 201/202/203, SAGA enforces strict quality management at every manufacturing stage.
Phase 01
IQC Phase
Incoming Inspection Specification
Raw materials including raw glass, aluminium profiles, uPVC profiles, thermal strips, and hardware are audited against supplier compliance reports before entering production. Phase 02
IPQC Phase
In-Process Production Quality Control
Nine automated inspection points track cutting accuracy, hole milling, corner welding/crimping, sealing strip insertion, and glazing installation. Phase 03
FQC Phase
Final Product Pre-Shipment Inspection
100% visual, functional, structural, operating force, and labeling inspection performed by qualified QC engineers prior to crate packing. IQC Inspection Standard
1. Raw & Auxiliary Material Inspection Protocol
Detailed incoming quality inspection guidelines executed by SAGA's Quality Department for all raw component shipments.
| Material Category | Inspection & Verification Criteria | Sample Size | Testing Method |
|---|---|---|---|
| Insulating & Laminated Glass | Compliance with AS/NZS 2208, AS4666, IGCC. Verification of glass thickness, Low-E coating, edge clarity, and absence of air bubbles or scratches. | 3 pcs / batch | Visual Inspection & Digital Caliper |
| Aluminium Profiles | Dimensional accuracy, wall thickness according to shop drawings. Powder coating thickness check: average thickness ≥60μm, local thickness ≥48μm. Adhesion test: Level 0. | 5 pcs / batch | Coating Thickness Gauge & Micrometer |
| uPVC Profiles | Profile wall thickness, color consistency, UV resistance certification audit, and structural reinforcement slot dimensions. | 3 pcs / batch | Vernier Caliper & Lab Audit |
| Critical Hardware | Multi-point lock mechanism durability, surface finish salt spray test reports, handle key alignment, and friction stay weight capacity. | 3 sets / batch | Manual Assembly & Mechanical Load Test |
| Structural Sealants | Batch ID, shelf-life verification, weatherproofing elasticity performance, and extrusion consistency. | 1 pc / batch | Visual & Mechanical Pull Test |
| EPDM Gaskets & Weatherstrips | Elasticity retention, pre-assembly fit check in profile grooves, and cold-climate flexibility. | 10 sets / batch | Groove Fitting & Flexibility Test |
FQC Final Inspection
2. Final Product Quality Control Criteria
Before any container is loaded, SAGA QC inspectors perform 100% mandatory checks on finished window and door assemblies.
| Inspection Parameter | Quality Control Requirements | Coverage | Testing Tool / Standard |
|---|---|---|---|
| Dimensional Accuracy | Width & height tolerance within ±3.0 mm; Frame squareness tolerance ≤4.0 mm across diagonal dimensions. | 100% Checked | Precision Laser Distance Meter & Tape |
| Functional Assembly | Smooth sash opening/closing, seamless corner joinery gaps, proper hardware alignment, and tight weather seal engagement. | 100% Checked | Manual Operation & Feel Gauges |
| Coating & Anodizing Surface | Powder coating finish meets AS3715 standards. Zero color variation, dent marks, scratches, or adhesive stains. | 100% Checked | Illuminated Visual Inspection |
| Operating Force Test | Measured under AS/NZS 4420.1:2016 test procedures. Opening and closing force must comply with maximum force allowances. | 100% Checked | Digital Push-Pull Force Gauge |
| Friction Stay Resistance | Tested under NZS4211 guidelines to ensure sash hold-open performance against wind vibration across opening angles up to 70%. | 100% Checked | Friction Resistance Gauge |
| Compliance Labeling | Audit of mandatory AS2047 / NZS4211 / NAFS compliance labels, order numbers, and glass safety stamps. | 100% Checked | Production Order Audit |
Supply Chain Integration
World-Class Profile & Hardware Partners
To ensure high quality, SAGA integrates top-tier international components into our custom fabrication systems.
Factory Insights
Frequently Asked Questions About Our Factory
Key information for importers, developers, wholesalers, and architects planning factory audits or volume orders.
Our manufacturing facility is located in Minhou County, Fuzhou City, Fujian Province, China. We ship finished goods directly via Fuzhou Port or Xiamen Port.
Our factory produces approximately 5,000 m² of custom windows and doors per month, supported by automated CNC cutting and crimping machinery.
Yes, we welcome overseas buyers, third-party inspection agencies (SGS, TÜV, Intertek), and video factory walkthroughs at any scheduled time.
Our internal quality control systems support compliance with AS2047:2014, AS1288:2021, NZS4211:2008, NAFS, and Miami-Dade TAS 201/202/203 testing criteria.
Ready to Discuss Your Project Specifications?
Connect directly with SAGA's engineering team for technical drawings, factory pricing, and compliance documentation tailored to your project location.