Curtain Wall Embedded Parts Manufacturers

Curtain Wall Embedded Parts from a Dedicated Construction Hardware Factory

As a Curtain Wall Embedded Parts Manufacturers, we match product configuration to the application, operating limits, interfaces and acceptance criteria defined for each project.

Jiangsu Aozheng Metal Products Co., Ltd. is a professional Curtain Wall Embedded Parts manufacturer and supplier, operating a 32,000 m² production base in China. We produce the steel and stainless steel components that transfer wind load, dead load, and seismic forces from the curtain wall mullions to the building structure. Our range includes welding steel sub channels, L angle brackets, anchor plates, anchor bars, and custom embedded assemblies for glass, stone, metal, and terracotta facades.

With automated cutting, stamping, welding, CNC machining, and laser processing, we deliver parts with consistent geometry and weld quality. Our annual capacity of 8,000 tons supports projects from high-rise towers to metro stations, and we export to the United States, Germany, Italy, the United Kingdom, Japan, Australia, Canada, Russia, Central Asia, and the Middle East.

Product Range and Application Fit

Curtain wall embedded parts are cast or welded into reinforced concrete slabs, beams, and columns before the facade installation begins. They must align with the structural grid and provide a precise interface for the vertical mullions and horizontal transoms. We supply the following types, each matched to a specific structural condition:

• Welding Steel Sub Channel Fixing Systems – For stone and precast concrete facades where on-site welding is preferred. The sub channel is embedded flush with the concrete surface, allowing the facade bracket to be welded after curing.
• Curtain Wall L Angle Brackets – Hot-dip galvanized or stainless steel angles that bolt or weld to the embedded plate, providing a simple vertical and horizontal adjustment point for mullion attachment.
• Anchor Plates and Anchor Bars – Custom steel plates with welded deformed bars or hooked anchors, sized to resist the calculated tension and shear loads from the facade.
• Cast-in Channels and T-bolts – For applications requiring post-adjustment, we supply hot-dip galvanized and stainless steel channels that accept T-bolts after concrete placement.

We also produce related precast concrete embedded parts such as lifting anchors and tube anchors, and we coordinate with our facade system of aluminum and stainless steel facade systems brackets to ensure the complete connection chain is compatible.

Material Selection and Corrosion Protection

Embedded parts are exposed to the concrete pore water and, in some cases, to the exterior environment at the joint. We manufacture from carbon structural steel, low-alloy high-strength steel, stainless steel, and aluminum alloy, depending on the load and corrosion requirements.

For carbon steel components, we offer hot-dip galvanizing (HDG) or electroplating to meet the specified coating thickness. Stainless steel grades such as 304 and 316 are available for coastal or industrial environments where chloride exposure is a concern. We confirm the material grade and coating specification with the project engineer before production.

Critical Specifications and Engineering Data

Each embedded part must be designed for the actual loads and the concrete edge distance. We work from the following parameters to define the product:

Quality Assurance and Acceptance Testing

We operate an in-house laboratory with a spectrometer, tensile tester, and surface inspection equipment. Every production batch is checked for chemical composition, mechanical properties, and dimensional accuracy. We perform 99.99% inspection on finished parts, including weld integrity and coating thickness, and we can provide material certificates and test reports with the shipment.

Our factory holds ISO9001 and has passed BV, SGS, and TUV audits, confirming our process control and traceability. For each order, we agree on the acceptance criteria, sampling plan, and documentation required by the project specification.

Customization and OEM/ODM Support

Most curtain wall embedded parts are project-specific. We offer OEM and ODM services, producing parts from your drawings or samples. Our R&D team can develop new shapes, sizes, and materials, and we have tooling capabilities for custom brackets and anchors. We also provide value engineering suggestions to simplify installation or reduce weight while maintaining structural performance.

Information We Use to Configure Your Solution

To prepare a precise quotation and shop drawings, we need the following project data:

• Architectural and structural drawings showing the facade grid and concrete member sizes
• Curtain wall system type (stick, unitized, semi-unitized) and mullion spacing
• Design loads: wind pressure, dead load, seismic, and thermal movements
• Concrete grade, cover, and edge distances at the embedment location
• Required material grade, coating, and any local code or standard
• Preferred connection method: welding, bolting, or cast-in channel
• Quantity, packaging, and delivery schedule

With this information, we confirm the anchor type, plate size, bar layout, and tolerances, and we produce samples for approval before mass production.

Installation and Maintenance Considerations

Embedded parts are positioned before the concrete pour, so the installation sequence is critical. We provide clear marking and templates to help the contractor set the parts accurately. After the concrete cures, the facade brackets are attached; our parts are designed to allow minor adjustment in three axes to accommodate construction tolerances.

Maintenance is minimal because the embedded parts are protected by concrete and coating. We recommend periodic inspection of exposed welds and fasteners, especially in aggressive environments, and we supply spare T-bolts and fasteners for the cast-in channel systems.

Packaging and Delivery

We package embedded parts in bundles or pallets with steel strapping and waterproof wrapping to prevent damage during sea freight. Our factory is near Shanghai port, which simplifies export logistics. We confirm the shipping terms (FOB, CIF, etc.) with each order and provide the necessary export documentation.

FAQs

What is the difference between a welding steel sub channel and a cast-in channel?

A welding steel sub channel is embedded flush with the concrete surface and allows the facade bracket to be welded on site. A cast-in channel is also embedded but has a slotted profile that accepts T-bolts, enabling bolted connections with post-adjustment. The choice depends on the facade system and whether welding is permitted on site.

Can you supply curtain wall embedded parts with hot-dip galvanizing?

Yes, we offer hot-dip galvanizing for carbon steel parts, typically with a coating thickness of 70–85 microns. We can also supply stainless steel parts for higher corrosion resistance.

How do you ensure the embedded parts align with the facade grid?

We manufacture to tight tolerances (±1 mm on critical dimensions) and provide templates or positioning jigs when required. Our shop drawings are coordinated with the structural and facade drawings to ensure correct placement.

What is the minimum order quantity for custom embedded parts?

We do not impose a fixed MOQ for custom parts. We can produce small batches for pilot projects or large quantities for major developments. The unit price depends on the material, complexity, and volume.

Do you provide material certificates and test reports?

Yes, we provide mill certificates for raw materials, and we can issue test reports for mechanical properties and coating thickness. Third-party inspection by BV, SGS, or TUV can be arranged upon request.