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220 Series 3-Arm Stainless Steel Spider Fitting for Point-Supported Glass Curtain Wall
The 220 series 3-arm spider fitting is the core connector of point-supported glass curtain wall systems. Its 3-arm design distributes structural loads evenly across adjacent glass panels, keeping the facade visually lightweight while providing reliable holding strength.
The three-arm arrangement is typically specified where three glass panels meet at one node, and its generous center distance suits the wider panel modules used on commercial building exteriors. Precision investment casting gives the body uniform wall sections and a clean, dense surface, and the central hub bolts to a supporting rosette or spider adapter so the whole node can be aligned on site before final fixing. This makes the 220 series a dependable, repeatable detail for facade contractors and glazing subcontractors working across standard panel grids.
Key Features
- Material: SS304 / SS316 stainless steel, precision investment cast
- Design: 3-arm, 220mm center distance
- Finish: Mirror polished or satin brushed, uniform and clean across all visible faces
- Quality: 100% inspected before shipment; material test certificates available on request
Specifications
- Series: 220 series point-fixing spider configuration
- Center distance: 220mm between arm fixing points
- Material options: SS304 or SS316 stainless steel
- Casting: Precision investment cast body for consistent geometry
- Finish options: Mirror polished or satin brushed
Installation & Usage
The spider is bolted to the supporting structure through its central hub, and each arm end locates a glass corner through the point-fixing hole. Protective shims or gaskets between the arm and the glass edge should be checked for even seating before the fixings are tightened, and the panel grid should be aligned to the design layout first. Keep protective film on polished faces during handling and clean the stainless surfaces after installation.
Quality Assurance
Every spider fitting is 100% inspected before shipment for dimensional accuracy, surface finish and fixing-hole integrity. Material test certificates are available on request to support project specifications and structural review.
Applications
- Point-supported glass curtain walls
- Glass canopies and skylights
- Structural glazing and glass balustrade systems
- Entrance canopies, atrium and lobby glazing
Customization & OEM
Custom center distances, arm lengths and finishes are available to match your panel grid. Wholesale & OEM orders are welcome. Send your drawings or panel schedule to our engineering team to request a quote.
