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Home > 4040 Aluminum Extrusion Manufacturer
4040 Aluminum Extrusion
- Standardized 40x40 Profile: Designed with 8mm T-slot and 40mm x 40mm cross-section, ideal for modular framing systems and industrial automation.
- High Compatibility: Interchangeable with global standard 40 series profiles; compatible with most brackets, fasteners, and accessories.
- Durable Alloy Construction: Made from 6063-T5 or 6061-T6 aluminum, combining excellent strength, corrosion resistance, and machinability.
- Multiple Slot Configurations: Available in 4040, 4040L (lightweight), 4040H (heavy-duty), or 4040R (rounded corner) variants.
- Excellent Surface Finish: Standard natural anodized for durability and aesthetics; optional powder coating or black anodizing available.
- Easy Assembly & Reusability: T-slot design allows flexible connection, repositioning, and reuse without welding or drilling.
- Supports Heavy Loads: Suitable for equipment frames, workstations, conveyors, and robotic enclosures with strong mechanical properties.
4040 Aluminum Extrusion Product
Customization Capabilities
We offer customized 4040 aluminum extrusions to meet your structural, assembly, and surface treatment requirements, supporting both standard and OEM profile modifications.
- Material Grade: 6063-T5, 6061-T6, or other specified alloys
- Profile Size: 40mm x 40mm with 8mm T-slot; variants like 4040L, 4040H, and 4040R available
- Wall Thickness: From 1.2mm to 2.5mm depending on strength and application
- Length: Up to 6 meters per piece; cut-to-length service upon request
- Surface Finish: Natural anodized (standard), black anodized, powder-coated, sandblasted, or electrophoresis
- Machining Options: CNC cutting, tapping, slotting, countersinking, and hole drilling for fastener compatibility
- Accessory Integration: Pre-machining available for bracket, caster, or fastener installation
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Why Partner with Sinoextrud for Your 4040 Aluminum Extrusion Needs?
We are more than just an aluminum profile supplier — we’re your efficient, reliable, long-term partner.
With Us, You Get:Faster turnaround，Stable quality，Competitive pricing，End-to-end support.
Large-Scale Manufacturing：Our factory spans 1,000 mu (about 667,000 m²), with full in-house capabilities from aluminum smelting and billet casting to extrusion, surface treatment, and CNC machining.
One-Stop Solution：With 43 extrusion lines (500–5500 tons) and a dedicated mold partner, we provide fast production, custom profiles, and integrated services to simplify your supply chain.
Quality You Can Trust：Strict quality control ensures consistent dimensions, strength, and finish, reducing your risk and increasing reliability.
Fast Delivery & Cost Efficiency：Self-produced billets, in-house processing, and batch production mean faster lead times and lower overall costs.
Advanced Finishing Options：Anodizing and both vertical and horizontal powder coating lines deliver durable, high-quality surface finishes tailored to your product needs.
Factory Overview
Furnace workshop
Aluminum bar production
Mold Warehouse
500-5500 Tons Extruder
Spraying workshop
Anodizing workshop
Deep Processing Workshop
CNC Machining Workshop
Finished goods warehouse
Finished goods warehouse
Finished goods warehouse
Export warehouse
5500 Ton Extrusion Press
Aluminum extrusion press
Large Aluminum Extrusion Line
Aluminum extrusion production line
Extrusion workshop
IATF 16949 Certification
TUV
Finished goods warehouse
Export warehouse
-Standard Packing Option-
* Long bar length profiles 3.0-6.0 meters*
Protective Film
Shrink Sleeve
Brown Paper
Craft Paper
* Short bar length profiles 0.3-3.0 meters*
EPE Foam
Poly Bag
Wooden Crate
Wooden Case
-Loading & Shipment-
Pallet Loading
Bulk Loading
LCL Loading
Expedited Express
STEPS
How to work with us
Sample & Test
Creating a prototype to assess dimensions and ensure the mold's precision aligns with the requirements.
Extrude & Finish
Producing the aluminum profile with pinpoint accuracy to the given specifications and applying desired finishes.
Pack & Deliver
Tailored packaging for the extruded profiles, ensuring safe and efficient loading for prompt delivery.
4040 Aluminum Extrusion-FAQ's
What is 4040 aluminum extrusion used for?
It’s commonly used in modular framing systems, automation equipment, machine enclosures, and workstation structures.
What material is used for 4040 extrusions?
We typically use 6063-T5 for standard applications and 6061-T6 for high-stress structural use.
Can I customize the profile length or slot configuration?
Yes, we support custom cuts and variants such as 4040 light, heavy, or rounded types.
Do you provide machining services for 4040 profiles?
Absolutely. We offer CNC drilling, tapping, slotting, and assembly pre-processing.
Is the surface treated or raw aluminum?
Standard finish is clear anodized, but black anodizing, powder coating, and other finishes are available.
Are your 4040 profiles compatible with European or Japanese standards?
Yes, our profiles match common international T-slot extrusion standards and accessories.
What is your MOQ and delivery time for 4040 profiles?
MOQ is typically 200kg; delivery time is 15-25 days depending on processing and finish requirements.
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Sinoextrud: Your 4040 Aluminum Extrusion Manufacturer
4040 Aluminum Extrusion is a highly versatile industrial profile widely used in mechanical frameworks, automation systems, and modular structural design. With its 40mm x 40mm cross-section and 8mm T-slot, it allows flexible assembly using standard connectors.
Designed for use in robotics, conveyors, laboratory benches, and manufacturing lines, this profile provides an ideal balance of rigidity and modularity, simplifying reconfiguration without welding or permanent joints.
Our profiles come in anodized, powder-coated, or customized finishes to protect against wear and oxidation, while maintaining a clean, technical appearance suitable for cleanroom or office use.
We also support complete CNC machining services, including drilling, slotting, and threading, to deliver installation-ready components tailored to your layout and load-bearing requirements.
With fast lead times, global compatibility, and consistent dimensional precision, our 4040 aluminum profiles are trusted by industrial engineers and automation integrators worldwide.