Stainless Steel 180 Degree Composite Door Crank Hinge - DDSS036
Product Overview
As a versatile solution in D&D HARDWARE’s door hinges portfolio, the Stainless Steel 180 Degree Composite Door Crank Hinge (Model: DDSS036) is engineered to deliver exceptional mobility and durability for composite doors. Designed with a crank mechanism, it enables a full 180° range of motion—ideal for doors requiring maximum access or unique configurations (e.g., folding doors, wide entryways). Crafted from multi-grade stainless steel (SUS201/SUS304/SUS316), this hinge resists corrosion, wear, and environmental stress—making it suitable for both indoor and outdoor applications (e.g., exterior entry doors, warehouse loading bays).
With a precision size of 100x83x2.0mm and five finishes (SSS/PSS/AB/AC/PVD), it seamlessly integrates with D&D’s door handles, door locksets, and stainless steel door stops—forming a complete door hardware system. Backed by a 5-year warranty and 18+ years of SGS-audited manufacturing expertise, DDSS036 is the go-to choice for builders, contractors, and distributors seeking reliable, high-performance door hardware for composite door projects.
Product Images and Videos
Technical Specifications
- Model Number: DDSS036
- Brand: D&D HARDWARE
- Type: 180 Degree Composite Door Crank Hinge
- Material: Stainless Steel (SUS201: dry indoor areas; SUS304: standard for humid/outdoor use; SUS316: coastal/industrial high-corrosion environments)
- Dimensions: 100x83x2.0mm (compatible with standard composite door thicknesses: 40-60mm)
- Finish Options: SSS (Satin Stainless Steel), PSS (Polished Stainless Steel), AB (Antique Brass), AC (Antique Copper), PVD (e.g., matte black, gold)
- Rotation Range: 180° (full circular motion for maximum door access)
- Load-Bearing Capacity: Up to 45kg per hinge (supports composite doors, including insulated or reinforced models)
- Corrosion Resistance: SUS304 passes 240-hour salt spray test (ASTM B117); SUS316 passes 800-hour test
- Design Styles: Modern, Traditional, Industrial, Contemporary
- Warranty: 5 Years Mechanical Warranty (covers crank mechanism and structural integrity)
- Place of Origin: Jiangmen, Guangdong, China
- After-sales Service: Online Technical Support
- Engineering Solutions: Graphic Design, 3D Model Design
Product Features & Advantages
- 180° Crank Mechanism for Maximum Door Access: The unique crank design allows doors to rotate a full 180°—ideal for wide entryways (e.g., warehouse docks, farmhouse porches) or doors that need to fold flush against walls. Eliminates space constraints of standard hinges, increasing usable area by 20% in tight spaces.
- Stainless Steel Durability for Indoor/Outdoor Use: - SUS304 resists rust from rain, humidity, and light industrial chemicals—perfect for exterior composite doors (e.g., hotel entryways, school gymnasiums). - SUS316 excels in coastal regions, withstanding salt air and marine environments without corrosion. Both grades outlast zinc-alloy hinges by 300% in outdoor lifespan.
- Optimized for Composite Doors: Engineered to handle the weight and structural properties of composite materials (e.g., fiberglass, PVC-composite). The 100x83mm plate distributes load evenly, preventing door sagging or hinge failure—common issues with generic hinges on composite doors.
- Precision Machining for Smooth Operation: CNC-machined crank components ensure frictionless 180° rotation (≤25dB noise level)—critical for high-traffic areas like mall entrances or office lobbies. Tested to 150,000+ cycles (equivalent to 10+ years of heavy use).
- Versatile Finishes for Design Cohesion: Finishes like PVD matte black (industrial style) or AB antique brass (traditional homes) match D&D’s cabinet handles (for interior doors) and door knobs (for entry doors), ensuring whole-property aesthetic consistency.
- System Compatibility with Door Hardware: Works seamlessly with D&D’s door closers (for automatic closure), panic exit devices (for emergency egress), and stainless steel door stops (to prevent over-rotation). Simplifies one-stop sourcing for contractors and builders.
Installation Steps for Stainless Steel 180 Degree Crank Hinge
- Prepare Tools & Materials: Gather a drill (3mm/4mm bits), torque screwdriver, measuring tape, level tool, pencil, and DDSS036 hinges (2-3 per door, based on weight). For security, include D&D’s door lockset in your installation kit.
- Mark Hinge Positions on Composite Door & Frame: - On the composite door edge: Measure 150mm from the top and 200mm from the bottom (standard for 2 hinges; add a center hinge for doors >45kg). - On the door frame: Align marks with door positions, ensuring the crank mechanism has clearance for 180° rotation (use a level to confirm vertical alignment).
- Secure Hinge Plates to Door & Frame: - Attach the hinge plate to the door edge using stainless steel screws (pre-drill pilot holes in composite material to prevent splitting). - Attach the matching plate to the frame, ensuring the crank arm moves freely without binding.
- Test 180° Rotation & Adjust: - Open the door fully to verify 180° movement—ensure no contact with walls, fixtures, or door stops. - If misaligned, loosen screws slightly and reposition hinges for smooth operation.
- Finalize Installation & Pair with Hardware: - Tighten all screws to 20 ft-lbs torque (use a torque screwdriver to avoid over-tightening composite material). - Install D&D’s door handle and door lockset—ensure they operate smoothly with the crank hinge. - Apply a thin layer of silicone lubricant to the crank mechanism for long-term smoothness (recommended annually for outdoor use).
Application Scenarios
The DDSS036 crank hinge excels in diverse settings where composite doors require 180° access and durable performance:
- Residential Spaces: - Farmhouses & Villas: 180° rotation for wide porch doors; SUS316 option for coastal homes resists salt air. - Modern Homes: PVD finish complements minimalist door handles; crank hinge enables doors to fold into walls, saving space.
- Commercial & Public Buildings: - Hotel Lobbies: Grand entry doors with 180° access; SSS finish resists fingerprints and maintains elegance. - Office Buildings: Conference room doors that open fully for large gatherings; pairs with door closers for automatic closure. - Schools & Hospitals: Heavy composite classroom/hospital room doors; 45kg load capacity supports frequent use.
- Industrial & Outdoor Spaces: - Warehouses & Factories: Loading bay composite doors; SUS304 resists industrial dust and moisture. - Outdoor Retail Spaces: Mall storefront composite doors; 180° rotation invites customers in, enhancing visibility.
Value for Buyers: For builders, the hinge’s composite door optimization reduces callbacks for sagging doors by 70%. For distributors, multi-grade stainless steel caters to budget (SUS201) and premium (SUS316) markets—expanding customer reach. For end-users, the 5-year warranty and 180° functionality add convenience (e.g., moving large furniture through doorways) and longevity, eliminating replacement costs for a decade.
Certifications and Compliance
- CE & UL Certifications: Meets CE EN 1935 (door hardware safety) and UL 10C (fire-rated door compliance)—suitable for commercial buildings requiring safety standards. Compatible with fire-rated composite doors up to 60 minutes.
- ISO 9001 Quality Management: Manufactured under D&D’s ISO 9001-certified system with strict checks: - Load-bearing testing (45kg for 72 hours) - Corrosion resistance (240-hour salt spray for SUS304) - Crank mechanism durability (150,000+ rotation cycles) Ensures 99.8% defect-free rate for bulk orders (e.g., new commercial developments).
- ASTM & BHMA Standards: Stainless steel meets ASTM A240 (mechanical strength for composite door use); hinge design complies with BHMA A156.2 (industry performance benchmarks for heavy-duty hinges). Ensures compatibility with global door systems.
- SGS Factory Audited: Produced in an SGS-audited facility (200,000 units/month capacity). Audits confirm ethical manufacturing, on-time delivery (98%+ rate), and compliance with international hardware regulations—critical for B2B partnerships.
Customization Options
D&D offers project-specific customization for the DDSS036 hinge to meet unique requirements:
- Size Customization: Adjust dimensions for extra-large composite doors (e.g., 120x90x2.5mm for 60kg+ doors) or narrow doors (e.g., 90x70x2.0mm for closet doors). Engineering team provides 3D models for pre-installation approval.
- Finish Customization: Add custom finishes like anti-graffiti PVD (for public buildings) or wood-matched coatings (for composite doors with wood grain). Minimum order quantity (MOQ) for custom finishes: 400 units—ideal for hotel chains or large residential projects.
- Crank Mechanism Customization: Modify rotation range (e.g., 160° for doors near obstacles) or integrate dampers (to prevent rapid 180° swings in windy areas). Suitable for coastal or high-wind regions.
- Packaging Customization: Opt for branded packaging (white boxes with your logo, multilingual installation guides) or bulk packaging (100 hinges per carton for builders). Include corrosion test certificates for coastal projects.
- OEM/ODM Services: Collaborate on fully custom crank hinge designs—e.g., hidden crank components for sleek aesthetics, or color-matched hinges to pair with D&D’s black door stops. Total solution support includes on-site training for installation teams.
Production Process & Quality Control
D&D’s production process ensures every crank hinge meets heavy-duty and precision standards. Key steps include:
- Material Sourcing & Testing: Select SUS201/SUS304/SUS316 coils and test via X-ray fluorescence (XRF) to verify chromium (≥18% for SUS304) and nickel content—critical for corrosion resistance. Reject materials with impurity levels >0.01%.
- Precision CNC Machining: Use CNC milling machines to craft 100x83x2.0mm hinge plates and crank components with ±0.005mm tolerance. Crank arms are heat-treated to HV 220 hardness for load-bearing strength.
- Surface Finishing for Durability: Apply finishes using industrial-grade techniques: - Passivation (SUS304/SUS316): Enhances corrosion resistance for outdoor use - PVD coating: Bonds at 500°C for scratch-resistant, colorfast finishes - Electro-polishing (SSS): Creates a smooth, easy-to-clean surface
- Crank Mechanism Assembly & Testing: Assemble hinges with precision-engineered crank parts and test: - 180° rotation smoothness (100 cycles with 45kg load) - Corrosion resistance (240-hour salt spray for SUS304) - Structural integrity (72-hour load test at max capacity)
- Final Inspection & Packaging: A QC team conducts 100% visual inspection (check for smooth rotation, finish uniformity) and samples 15% for additional endurance testing. Qualified hinges are packaged in moisture-proof bags (inside white/color boxes) with installation templates.
