Custom Aluminum Extrusion Service
Custom Aluminum Extrusion for Finished Aluminum Profile Parts
- Mold design + extrusion + CNC + finishing
- Up to 5,000-ton extrusion capacity
- Low MOQ for prototype and batch production
- STEP, STP, SLDPRT, IPT, PRT, SAT, PDF accepted
Why Buyers Choose Zheng Ji
More than an aluminum extrusion manufacturer: a one-stop aluminum manufacturing partner. With precise dimensional control and custom processing capabilities, we manufacture aluminum parts to meet exact project requirements.
Custom Aluminum Extrusion
CNC Machining
Anodizing & Powder Coating
Prototype to Production
Professional Aluminum Profile Manufacturing Team
Zheng Ji is equipped with 12 extrusion lines on-site, with a maximum extrusion force of up to 5,000 tons. Our engineering team reviews profile drawings to ensure they meet extrusion requirements, provides technical suggestions based on your needs, and selects the right press to offer the most cost-effective quote.
- Standard lead time of 25 days
- Mold production, CNC machining, anodizing, powder coating, sandblasting, bending, stamping, and welding
- Professional engineers and sales team providing timely and technical feedback
- Reliable after-sales support
Custom Aluminum Extrusion Services for Your Profile Design
Whether you need an aluminum enclosure, heat sink, LED channel, T-slot profile, automotive component, furniture profile, or special industrial profile, Zheng Ji can support your project from profile design review to finished aluminum part production.
Profile Drawing Review
We review your 2D and 3D drawings, wall thickness, tolerance requirements, material, finish, machining features, and final application.
Extrusion Mold Design
We design and manufacture the custom extrusion die according to your required cross-section.
Trial Extrusion & Sample Measurement
Trial profiles are extruded and measured before mass production to confirm key dimensions and profile quality.
Aluminum Extrusion Production
We manufacture custom aluminum profiles for solid, hollow, semi-hollow, structural, decorative, and industrial applications.
CNC Machining & Fabrication
We provide cutting, drilling, tapping, milling, punching, bending, welding, stamping, deburring, and assembly.
Surface Finishing
We offer anodizing, powder coating, sandblasting, fluorocarbon paint, electrophoresis, polishing, laser etching, and silk screen printing.
From Drawing to Finished Aluminum Profile Parts
You should know exactly what happens after you submit your drawing. Zheng Ji follows a clear production process to reduce risk before mass production.
01
Upload CAD or 3D file
02
DMF Analysis and Get a Quote
03
Order Confirmation & Production
04
Parts Shipped
Get a digital quote within hours. Get real-time pricing and design feedback, and our team of experienced engineers are on hand to help you with any design adjustments.
Custom Aluminum Profiles We Manufacture
Zheng Ji manufactures custom extruded aluminum profiles for industrial, automotive, electronics, lighting, furniture, machinery, and OEM applications.
Aluminum Enclosure Profiles
For electronic housings, control boxes, power supply shells, industrial devices, and protective equipment cases.
Aluminum Heat Sink Extrusions
For LED lighting, electronics, power modules, energy equipment, and thermal management systems.
Aluminum Lighting Housings / Enclosure
For LED strip lighting, architectural lighting, diffuser channels, mounting systems, and light housings.
Automotive Aluminum Profiles
For roof rack systems, running boards, brackets, rails, housings, and customized vehicle components.
T-Slot Standard Aluminum Profiles
For automation frames, robot structures, machine guards, workstations, conveyor frames, and modular systems.
Aluminum Window & Door Frame Profiles
For customize aluminum door and window frames, including pure profiles and pre-fabricated frames.
Furniture Aluminum Profiles
For handles, cabinet frames, decorative trims, baseboards, sliding profiles, and furniture accessories.
Aluminum sunroom profiles
For aluminum sunroom frame profiles, including beam, column, wall plate, gutter, window frame, sash and so on.
Aluminum Alloys for Custom Extrusion
The right aluminum alloy depends on strength, surface appearance, machining, anodizing performance, corrosion resistance, and cost. Zheng Ji can help recommend the proper material according to your drawing and application.
Aluminum 6061
Al–Mg–Si
6061 aluminum is one of the most versatile alloys used in aluminum extrusion. It offers an excellent balance of strength, machinability, and corrosion resistance. In aluminum extrusion, 6061 is ideal for Structural parts, machined profiles, automotive parts, industrial components that require both precision and moderate strength
Aluminum 6063
Al–Mg–Si
6063 aluminum is known for its superior surface quality and excellent extrudability. It is softer and more ductile than 6061, making it a preferred material for aluminum extrusion profiles with complex cross-sections and decorative applications.
Aluminum 6082
Al–Mg–Si
6082 aluminum is a high-strength alloy commonly used in Europe as an alternative to 6061. It offers better mechanical strength and improved resistance, while maintaining good machinability. In aluminum extrusion, 6082 is favored for precision mechanical parts and load-bearing structures.
Aluminum 6005 / 6005A
Al-Mg-Si
6005 and 6005A are Al-Mg-Si aluminum alloys with good extrudability, higher strength than 6063, and good corrosion resistance, weldability, and surface treatment performance. They are commonly used for structural extruded profiles, such as solar mounting profiles, ladder profiles, rail vehicle profiles, and other load-bearing aluminum profiles.
Custom Extrusion Aluminum Manufacturing Process
With a robust quality management system and a commitment to continuous improvement, Zheng Ji have earned our customers’ trust. Dedicated to innovation and mutual growth, we strive to deliver high-quality products and efficient service.
Custom Extrusion + CNC Machining + Surface Finishing
A custom extrusion often needs more work before it becomes a usable component. It may need holes, threads, slots, precise cut lengths, anodizing, powder coating, engraving, or assembly.
Zheng Ji helps you finish the job in one place.
- Advanced Equipment: Cutting-edge extrusion presses for producing versatile and precise aluminum profiles.
- Quality Control: Strict systems to ensure high performance and durability.
- Customization Capabilities: CNC machining center, anodizing workshops, powder coating workshops and other customized processing centers
Surface Finishing Options
The surface finish affects appearance, corrosion resistance, hardness, wear resistance, color consistency, branding, and product value.
Clear Anodizing
Clear anodizing forms a transparent oxide layer that improves corrosion resistance while preserving the natural metallic appearance of aluminum.
Colored anodizing
Colored anodizing adds dye to the anodized oxide layer, creating a durable decorative finish with improved corrosion resistance.
Hard Anodizing
Hard anodizing produces a thicker and denser oxide layer for higher surface hardness, wear resistance, and long-term durability.
Powder Coating
Powder coating applies a durable colored coating to aluminum surfaces, offering excellent weather resistance, corrosion protection, and design flexibility.
Sand Blasting
Sand blasting uses abrasive media to create a uniform matte texture and prepare the aluminum surface for further finishing.
Polishing
Polishing smooths the aluminum surface to reduce roughness and create a brighter, more reflective appearance.
Electroplating
Electroplating deposits a thin metal layer onto the aluminum surface to improve appearance, conductivity, corrosion resistance, or wear performance.
Electrophoresis
Electrophoresis creates a uniform protective coating that improves aluminum corrosion resistance and surface durability.
Quality Control of Aluminum Extrusion
Our quality team rigorously monitor the entire manufacturing process of extrusion components, from raw materials to finished product delivery, ensuring customer needs and satisfactions.
Extrusion Mold Drawing Design and Inspection
Extrusion Mold Testing
Extruded Sample Measurements
Why You Can Trust Zheng Ji Aluminum
We strictly adhere to ISO quality standards and have been certified to ISO 90001: 2015. Our production lines use advanced technology to ensure manufacturing precision and accuracy. With in-house advanced measuring and testing equipments, we can verify that all materials and products meet your specifications.
Instant Quoting
If your RFQ contains clear information, quotations are typically delivered in a few hours.
Full Service
Our own industrial park includes extrusion, CNC, surface treatment and other production lines, can provide all processing needs for aluminum product processing and production.
Industry Experience
Having carried out rapid prototyping and rapid manufacturing since 2004, our engineers have built up rich experience. We can handle all types of projects.
30K+ Projects Delivered
Over 10K projects have been sent to our customers worldwide since we started in 2004, and we have received countless positive comments.
Custom Aluminum Extrusions for Real Industrial Applications
Zheng Ji manufactures custom aluminum profiles for customers in automotive, automation, electronics, energy, lighting, furniture, machinery, and construction applications.
Building
Energy
Mechanical
Electronic
Furniture
Auto
Aluminum Extrusion Blog
How to Choose the Right Aluminum Extrusion Alloys
Aluminum extrusion is a versatile manufacturing process used to produce precise, custom profiles for a wide range of industrial applications. Choosing the right aluminum extrusion alloys is critical, as
The Ultimate Guide for Aluminum Extrusion
Aluminum is widely used across various industries due to its excellent formability and mechanical properties. Aluminum extrusion stands as the most common and practical method for shaping aluminum today.
What is Aluminum Extrusion CNC Machining? Definition and Benefits
Featured snippet answer: Aluminum extrusion CNC machining is a hybrid manufacturing route. Extrusion forms a repeated profile along the part’s length, while CNC machining adds local holes, threads, slots,
Steps to Aluminum Extrusion: From Design to Finished Product
Aluminum extrusion is a highly efficient manufacturing process that transforms raw aluminum billets into profiles with complex shapes. This versatile process is essential for creating a wide range of
Zheng Ji Custom Aluminum Extrusion FAQ
Custom aluminum extrusion is a manufacturing process where heated aluminum billet is pushed through a custom-designed die to create a specific profile cross-section. The result is an aluminum profile made according to your drawing or product design.
If your profile shape is not available as a standard extrusion, a custom extrusion mold is usually required. The mold forms the specific cross-section of your aluminum profile.
Yes. We can review wall thickness, hollow structure, tolerance, machining allowance, surface finish, and cost factors before mold production.
It depends on your application. 6063 is often used for profiles that need good surface finish. 6061 is often used for stronger structural or machined parts. 6082, 6005, 6005A, 6105, and 6463 may also be suitable depending on the design and performance requirements. Learn more about how to choose aluminum alloy by our professional blog.
Yes. Zheng Ji can provide CNC milling, drilling, tapping, cutting, slotting, countersinking, punching, bending, welding, and other secondary processing after extrusion. Aluminum extrusion CNC is our outstanding advantage.
Yes. We can provide anodizing, black anodizing, hard anodizing, powder coating, sandblasting, brushing, polishing, laser engraving, and silk screen printing.
Standard lead time of 25 days. Send your drawing and project details so we can provide a more accurate schedule.
In aluminum extrusion, T5 and T6 refer to two common heat treatment conditions:
T5 Condition: After extrusion, the aluminum is cooled from the high-temperature process and then artificially aged to achieve the desired hardness and strength.
T6 Condition: After extrusion, the aluminum undergoes a complete quenching process(water cooling) and then artificially aged to achieve the desired hardness and strength.
The strength and hardness of aluminum alloy in the T5 state are lower than that of aluminum alloy in the T6 state.
The hardness achieved after aluminum extrusion depends on the type of aluminum alloy used and the heat treatment process. Typically, commonly used 6000 series aluminum alloys (such as 6061, 6063) can achieve a hardness of 70 to 120HB (Brinell hardness) in T5 or T6 heat treatment conditions.
The lifespan of an aluminum extrusion mold depends on various factors. We use high-quality steel to manufacture our aluminum extrusion molds, combined with advanced extrusion equipment, each mold can be used for thousands to even tens of thousands of cycles.
We recommend sending 2D drawings, 3D models, or both. Common file formats include STEP, STP, SLDPRT, IPT, PRT, SAT, PDF, and DWG. Please also include quantity, alloy, finish, length, tolerance, and application if available.
Comprehensive services
Aluminum CNC Process
Provide comprehensive CNC machining services, including milling, turning, grinding and cutting.
Surface Treatment
Offer surface treatment services such as anodizing, powder coating and electroplating.
Other Custom Fabrication Services
Die casting, welding, bending, stamping and other services
