Curtain Wall Aluminium Profiles Manufacturer
HTS-ALU manufactures custom curtain wall aluminium profiles for commercial and high-rise building projects. We supply aluminium curtain wall profiles, including mullions and transoms, made from high-strength aluminum alloys with tight tolerances, finished with high-durability powder coating or PVDF, and delivered with reliable lead times .


Curtain wall aluminium profiles are custom-extruded aluminum sections used in unitized and stick glass curtain wall systems. They form the primary structural framework that supports glass panels, transfers wind load and self-weight, and connects the curtain wall system to the main building structure.
These profiles mainly include:
- Vertical mullion profiles – providing vertical load transfer and structural stability
- Horizontal transom profiles – supporting glass panels and defining module spacing
Because glass curtain wall designs vary by region, building height, and local codes, the required profile sections differ from project to project. As a result, glass curtain wall aluminium profiles are typically custom extrusions, manufactured according to approved drawings, section designs, and project-specific requirements.
Glazed Curtain Walls Aluminum Profile System

Frameless Glass Curtain Wall
In frameless glass curtain walls, the support system is deliberately minimalistic to achieve an unobstructed and seamless appearance. Aluminum profiles, if used, are discreet and typically limited to connection points between glass panels. The primary focus is on maintaining transparency, and the aluminum support is engineered to be as inconspicuous as possible while providing necessary structural stability. The profiles may be hidden within the construction or feature a slim, elegant design that complements the overall aesthetic.

Semi-Frameless Glass Curtain Wall
Semi-frameless glass curtain walls strike a balance between structural support and transparency. Aluminum profiles are strategically placed around the perimeter and intermittently between glass panels. The framing serves both aesthetic and functional purposes, providing stability while minimizing visual interruptions. These profiles may have a slightly more pronounced presence than in frameless systems but are still designed to enhance the overall modern and sleek appearance of the facade.

Framed Glass Curtain Wall
Framed glass curtain walls utilize more extensive aluminum profiles to provide robust structural support. These frames surround and encapsulate the glass panels, offering a traditional yet versatile design. Aluminum is a popular choice for these frames due to its lightweight nature, durability, and resistance to corrosion. The frames can be customized in terms of size, shape, and finish to accommodate diverse architectural styles. The visible framing elements contribute to the overall aesthetics, offering opportunities for design embellishments and color choices.
Curtain Wall Aluminum Profile Options
Alloy Selection
Common alloys are 6063, 6060, and 6061, chosen per structural demand, extrusion formability, and surface quality.
6063: Go-to for curtain wall frames due to excellent extrudability and surface finish.
6060: Good flow for thin walls/complex sections; slightly lower strength than 6063.
6061: Higher strength; suitable where load or connection demands are greater.

Surface Finishes
Powder coating is common. For profiles exposed to strong sunlight, specify high-durability outdoor powders (e.g., super-durable polyester) to enhance chalking and color retention. PVDF (fluorocarbon) coatings are an alternative for superior weathering and corrosion resistance, especially in coastal or high-UV environments. For metallic appearance or abrasion resistance, compare with anodizing or electrophoretic coatings.

Thermally Broken Profiles
Use thermal break designs with insulating strips typically made of glass fiber reinforced PA66 (nylon) for strength and heat-aging resistance. Strip widths can be selected in different sizes to meet thermal performance targets—wider strips lower thermal bridging and improve overall U-value, but verify profile strength, mechanical stability, and connection details accordingly. Align choices with local energy codes, condensation risk checks, and section inertia requirements.

Curtain Wall Aluminum Profile Capabilities
HTS-ALU focuses on the production of custom aluminum profiles for glass curtain wall systems, supporting projects with different structural requirements, profile sizes, and surface performance demands. Our manufacturing capabilities are configured to handle both large structural sections and precision secondary profiles, ensuring consistency from extrusion to final surface finishing.
Extrusion Process
Glass curtain wall systems typically require large-section mullion profiles to carry wind load and glass weight, which demand high extrusion force and stable press performance. HTS-ALU is equipped with heavy-duty extrusion presses up to 6000 tons, enabling the production of large-dimension mullion sections with controlled wall thickness and dimensional accuracy.
For transom profiles, cover caps, pressure plates, and auxiliary sections, smaller extrusion presses are used to achieve higher precision and better surface consistency.
To ensure consistent mechanical performance, our extrusion lines are integrated with advanced water quenching systems, allowing profiles to be rapidly and uniformly cooled after extrusion. This controlled cooling process is critical for achieving fully compliant T6 heat treatment, ensuring that the final aluminum curtain wall profiles meet the required hardness and strength specifications for structural curtain wall applications.


Surface Treatmen
As curtain wall aluminum profiles are used in outdoor building facades, surface durability and weather resistance are critical. HTS-ALU primarily provides surface treatments suitable for exterior curtain wall use, including:
- High-durability powder coating for uniform appearance and corrosion protection
- PVDF fluorocarbon coating for projects requiring enhanced weather resistance and long-term color stability
Thermal Break Aluminum Profile Production
To meet the growing demand for energy-efficient window and door systems, we operate 2 dedicated thermal break aluminum profile production lines equipped with advanced polyamide strip insertion (PA66 GF25) technology.
Curtain Wall Aluminum Extrusion Solution
- HTS-ALU is a specialized curtain wall aluminum profile manufacturer in China with over 20 years of industry experience.
- We provide custom extrusion and tooling for a full range of curtain wall mullions, transoms, pressure plates, covers, and bespoke façade profiles, and keep an extensive inventory of ready-made dies to meet urgent project schedules.
- Our plant operates 40 advanced extrusion lines, including a maximum 6000‑ton press, enabling efficient production for both mockups/small batches and large-scale façade orders.
- We offer end-to-end, in-house services: surface finishing (powder coating, PVDF/fluorocarbon, anodizing, electrophoresis), precision CNC machining, drilling, slotting, and assembly support—delivering turnkey solutions for façade applications.
- Typical die development takes 7–10 days. Standard production for quantities up to 26 tons is completed within 15–20 days, ensuring fast turnaround and reliable delivery for time-critical curtain wall projects.
Curtain Wall Aluminum Specification
| Material | 6063, 6060, 6061 Series aluminum alloy |
| Temper | T5, T6 |
| Thickness | 1.5 – 3.5 mm (customizable) |
| Surface treatment | Powder Coating / PVDF Fluorocarbon Coating |
| Color | Customized Color |
| MOQ | 500KG |
| Delivery time | 15-20 days after sample confirmed & down payment, or negotiated |
| Port | Guangzhou,Ningbo, Shanghai |
Custom Curtain Wall Aluminum Profile Case
This project is a custom curtain wall aluminum profile solution developed for a building contractor. The profiles were manufactured using 6063-T6 aluminum alloy and finished with black powder coating for outdoor facade use. The customer provided detailed section drawings at the initial stage. Based on structural and extrusion feasibility, we reviewed the drawings and proposed optimization suggestions for confirmation. After approval, extrusion dies were produced, followed by full-profile trial extrusion and sampling. The complete set of samples was sent to the customer for verification before proceeding with mass production.

1. Curtain wall aluminum section drawings

2. Extruded aluminum curtain wall profiles after trial production

3. Black powder coated surface finish for outdoor curtain wall application

4. Protective packaging prepared for shipment and site installatio
Curtain Wall Aluminium Profiles – FAQ
| Item | 6063-T5 | 6063-T6 | 6061-T6 |
|---|---|---|---|
| Typical Use in Curtain Wall Systems | Secondary profiles, cover caps | Standard curtain wall profiles | High-load structural members |
| Strength Level | Medium | Medium–High | High |
| Typical Yield Strength | ~110 MPa | ~160 MPa | ~240 MPa |
| Typical Tensile Strength | ~160 MPa | ~205 MPa | ~290 MPa |
| Hardness | Lower | Higher | Highest |
| Extrudability | Excellent | Excellent | Moderate |
| Capability for Large Sections | Good | Excellent | Limited for very large sections |
| Dimensional Stability | Good | Very Good | Good |
| Surface Finish Quality | Excellent | Excellent | Fair to Good |
| Anodizing / Coating Appearance | Very uniform | Very uniform | Less uniform than 6063 |
| Heat Treatment Condition | Artificial aging after extrusion (T5) | Water quench + artificial aging (T6) | Solution heat treatment + aging (T6) |
| Recommended Applications | Non-structural or decorative profiles | Mullions & transoms (main structure) | High-wind or special load zones |
We recommend providing 2D drawings (DWG / DXF) with complete section dimensions and tolerances. For profiles requiring machining, 3D files (STEP / IGES) are preferred. All drawings should indicate alloy, temper, surface treatment, and application details for accurate production.
Mold fees are an essential part of the custom aluminum extrusion process. Since every order requires a uniquely designed mold tailored to specific requirements, these molds cannot be used for other products. Therefore, the mold fee is necessary and non-negotiable.
We require 100% upfront payment of the mold fee before mold development begins to ensure timely production. However, as a token of appreciation for your support, we offer a refund of the mold fee or equivalent discounts once the order reaches a certain production volume. Specific policies can be discussed based on your order volume and collaboration details.
Our minimum order quantity (MOQ) varies depending on the size of the product. For smaller-sized products, the MOQ is typically 500kg, while for larger-sized products, it is 2 tons.
We will specify the exact MOQ requirements during the quotation process. If your order quantity does not meet the MOQ, we can still arrange production, but an additional fee will be applied to cover mold preheating and production setup time. Rest assured, this extra fee will be reasonable, and we aim to keep it as minimal as possible to ensure smooth cooperation.
Packaging can be customized according to your needs. Options include using protective film or paper to separate and protect the surface, or foam film for additional surface protection. Products can be palletized or packed into cartons, and the quantity per pallet or carton can be specified by the customer.
The standard packaging involves bundling several pieces together with plastic wrap and then securing them onto pallets. Any packaging requirements beyond the standard will be accommodated, and the associated costs will be clearly provided to the customer.
Mold production typically takes 7 days. After the sample is confirmed, producing a full container load of 26 tons generally requires 14 days for extrusion alone. If surface treatment is required, an additional 3 days will be needed. For machining, extra time will be required depending on the complexity and volume of the machining work. The exact additional time for machining will be determined based on the specific processing requirements.
Aluminum profiles are naturally corrosion-resistant due to the formation of a thin, protective oxide layer when exposed to air or water. This oxide layer is stable and self-repairing, meaning that even if the surface is scratched or cut (such as at exposed ends or during processing), the aluminum will not rust or corrode like iron or steel. Instead, the exposed areas will quickly form a new oxide layer, providing continuous protection against further oxidation.
With proper design, installation, and maintenance, aluminum profiles can last for decades, even in challenging environments. For example, untreated aluminum can easily withstand 20-30 years in outdoor applications, while profiles with surface treatments like anodizing or powder coating can last even longer, often exceeding 50 years. This makes aluminum an excellent choice for applications where durability and long-term performance are essential.
The price of aluminum profiles consists of several components: raw material costs, extrusion processing fees, surface treatment fees, machining costs, and additional packaging fees. Among these, the cost of aluminum as a raw material tends to fluctuate frequently, while other fees remain relatively stable. Due to these fluctuations, our quotations are typically valid for 7 days.
Pricing can be structured in different ways depending on the product and requirements. It can be calculated by weight (e.g., cost per ton), by length (e.g., cost per meter), or by piece (e.g., cost per unit). For products involving extensive machining, such as heat sinks, pricing is generally calculated on a per-piece basis to accurately reflect the additional processing costs. This flexible pricing approach ensures the quote is tailored to the specific needs of the customer.
We can manufacture aluminum profiles in compliance with technical requirements that meet European standards (EN), American standards (ASTM/AA), or other standards as specified by the customer. Custom production is tailored to ensure that the profiles meet the specific standard requirements requested.
Our production equipment is designed for the metric system. If the drawings provided are in the imperial system, we will convert them into metric units for production to ensure accuracy.
It is important to note that while we can machine imperial-threaded holes for fasteners, if you require us to supply matching imperial fasteners, they may not always be available in stock. Custom orders for imperial fasteners typically require a large volume for production. Please consider this when planning your project.
Curtain wall aluminum profiles are primarily project-specific and custom-designed. However, for some commonly used sections, existing molds may be available. Please contact us with your section drawings for confirmation.
How does Custom Curtain Wall Aluminum Profile Work

With extensive experience in aluminum extrusion, HTS-ALU manufactures aluminum profiles with a wide range of structural configurations. Different profile structures require different extrusion die designs, production methods, and process control according to profile geometry, wall thickness, strength requirements, and application scenarios.
1. Drawing Analysis
We accept CAD drawings, STEP files, PDF drawings, and reference images. Sample-based profile measurement and drawing development are also available for custom aluminum extrusion projects.

2. Tooling Development
Tooling drawings will be provided for customer confirmation before mold production. New extrusion dies are typically completed within 7 days, followed by trial extrusion and sample approval before mass production.
3. Extrusion & Heat Treatment
Custom aluminum profiles are produced through extrusion and heat treatment processes including T5, T6, and T66. Production time for one full container (approximately 26 tons) is usually around 1 week.
4. CNC Machining & Fabrication
Precision cutting, drilling, punching, milling, tapping, and welding services are available. STEP drawings and machining tolerance requirements are recommended for custom fabrication projects.
5. Surface Finishing
Available surface finishes include anodizing, electrophoresis, powder coating, PVDF coating, wood grain transfer, sandblasting, and brushed finishes. For custom colors, customers can provide color samples or standard RAL color codes.
6. Packaging & Shipment
Protective packaging, pallet packaging, labeling, and export shipment services are available according to customer requirements. Custom logo marking on aluminum profiles is also supported.
Considerations for Curtain Wall Aluminum Profile

Aluminum profiles for doors and windows are manufactured using high-quality aluminum alloys, specifically designed for their structural integrity, durability, and corrosion resistance. The primary raw material used in the production of these profiles is aluminum extrusion billets.
Aluminum extrusion billets are cylindrical logs or ingots made from a blend of aluminum and various alloying elements. These alloying elements, such as silicon, magnesium, manganese, and copper, are added in precise proportions to enhance the strength, ductility, and other desired properties of the final aluminum profiles.
The billets undergo a series of processes to convert them into the desired profiles for doors and windows. The first step is heating the billets to a specific temperature, making them soft and malleable. Then, they are forced through a specially designed die under high pressure, using an extrusion press. The die imparts the desired shape and cross-sectional profile to the aluminum, resulting in the extruded profiles.
After extrusion, the profiles undergo various finishing processes, such as cutting, machining, surface treatment, and powder coating. These processes further enhance the aesthetics, functionality, and durability of the profiles, making them suitable for use in doors and windows.
Advantages of Aluminum Alloy Curtain Walls
Material Strength: The aluminum profiles used in curtain walls must meet specific strength requirements to withstand wind loads, seismic forces, and other environmental factors. The material’s strength directly impacts the overall stability and longevity of the curtain wall system.
Thermal Performance: Thermal break technology is often incorporated into aluminum profiles to enhance the energy efficiency of the curtain wall. This involves inserting materials with low thermal conductivity to reduce heat transfer, contributing to improved insulation and energy conservation.
Customization and Finish: The ability to customize aluminum profiles in terms of size, shape, and finish allows architects to achieve their desired aesthetic vision. Anodized or powder-coated finishes can enhance the appearance, providing both visual appeal and protection against corrosion.
Installation and Assembly: The ease of installation and assembly is a crucial consideration in the choice of aluminum profiles. Prefabricated systems that allow for efficient on-site assembly contribute to cost-effectiveness and streamlined construction processes.
Surface Treatments for Aluminum Profiles
Anodizing forms a hard, protective oxide layer on the surface of tubular aluminum, increasing resistance to corrosion. This process allows for a variety of color options—like silver, black, champagne, and gold—creating a smooth and decorative finish. Film thickness typically ranges from 8 to 15μm, and can go up to 20μm for extra protection.
Powder coating involves spraying dry powders onto tubular aluminum and curing them at high temperatures. This produces a thick, tough layer in a wide range of vibrant colors, providing excellent protection against wear, impacts, and UV exposure. Coatings are usually 60–120μm thick.


Wood grain finishes give tubular aluminum a natural wood appearance through a special heat transfer or sublimation process. This creates a realistic wood look combined with the strength and low maintenance of aluminum. A base powder coating is applied first (typically 60–80μm thick), with the wood pattern embedded into this layer for lasting results.
About HTS-ALU
HTS New Materials (Jiangxi, China) is a leading aluminum extrusion manufacturer with 40+ advanced lines and presses up to 6,000 tons. We supply profiles for construction, industrial uses, and premium doors/windows, including thermal-break profiles.
Capabilities include anodizing, powder coating, fluorocarbon coating, and wood-grain transfer. We also offer end-to-end machining and fabrication: CNC, milling, punching, drilling, threading, precision cutting, welding, and assembly—delivering ready-to-use, project-specific solutions.
Hot-Selling Products

Surface Options

Alloys for Extruded Profiles
- 6063 (T5/T6)
- 6061 (T6/T6511)
- 6060 (T5)
- 6005/6005A (T5/T6)
- 6082 (T6)
- 6101 (T6/T61)
- 7075 (T6/T73)
- 2024 (T351)
Packing Options
- Single-piece protective film separation
- Blister packaging
- Carton packaging
- Wooden crate packaging
- Palletization

