Glass Splider Fitting

Glass Splider Fitting

Glass spider fittings are an essential component in building facades made of glass curtain walls. Also known as point-supporting curtain walls, they consist of glass spider fittings, glass spider joints, transfer pieces, and other components. The glass spider fittings support the glass spider joints and transfer load impacts to the fixed support structure system. Glass spider fittings play a vital role in transferring the load to steel structures or other main structures through the glass spider joints, indicating how critical their mechanical properties are. They make a building facade appear transparent and integrate indoor and outdoor spaces, creating a sense of openness.


Glass spider fittings can be divided based on their appearance into four way, three way, 90° two way, 180° two way, long single, and short single spider fittings. For instance, four-way spider fittings are frequently used in the center of the curtain, while 90° and 180° two-way fittings connect curtain edges. When it comes to aesthetics, the 90° two-way spider fitting collaborates with long single spider fitting, while the 180° two-way spider fitting pairs well with the short single spider fitting. Glass spider joints link with the glass, while transfer pieces connect the point-supporting and glass spider fittings, as well as weld with other bars. All these parts work together to ensure building facades are stronger, more windproof, pressurized, and secure.


To ensure durable and corrosion-resistant spider fittings, they are made of stainless steel, either 304 or 316 grade. Although 201 grade stainless steel may be less expensive, it is vulnerable to oxidation and corrosion that can affect the overall effect of the curtain and hide safety hazards. The corrosion resistance of stainless steel makes it the best choice for glass spider fittings since they are often exposed to air and experience rain and dew. Chromium is the most basic element of corrosion resistance in stainless steel, making it an ideal material for high quality and long-lasting spider fittings.


The most efficient method of manufacturing glass spider fittings is the Silica Sol Casting process, just like other stainless steel investment castings. The process involves making a mold, wax injection, coating, drying, melting wax, pouring liquid steel, cooling, removing coating, and shot blasting.


Glass spider fittings come in different sizes and types suitable for various environments, based on the size and thickness of the glass. For instance, the 150 type spider fitting is relatively small and often used for canopies, while the 250 type is the most widely used specification for glass areas less than 3.0㎡. The 300 type spider fitting is the largest and best for glass areas over 3.0㎡.