40120 Aluminum Extrusion for 40×120 T-Slot Modular Frame Systems
The 40120 aluminum extrusion profile is a 40mm × 120mm modular aluminum profile designed for strong industrial structures, long support rails, machine frames, workstation frames, machine guards, conveyor supports, automation equipment frames, equipment stands, machine bases, CNC support structures, protective enclosures and custom modular frame systems. Compared with smaller aluminum extrusion profiles such as 4040, 4060 and 4080, the 40120 profile provides a much wider rectangular 40 series structure, stronger rigidity and improved support for frames that require better stability, longer span support and industrial-grade assembly performance.
This 40120 aluminum T-slot profile features multiple open T-slots, allowing T-slot nuts, corner brackets, bolts, internal connectors, joining plates, panels, sensor mounts, leveling feet, caster wheels, hinges, handles and other accessories to be installed from multiple directions. Compared with welded steel structures, a T-slot aluminum framing system is easier to assemble, adjust, expand, disassemble and rebuild. This makes it suitable for users who need a flexible structure that can be modified as project requirements change.
40120 Aluminum Extrusion Applications
The 40120 aluminum T-slot profile is widely used in modular workstations, machine guard frames, conveyor support structures, automation equipment frames, equipment stands, equipment racks, CNC support frames, machine bases, inspection fixtures, panel mounting structures, laboratory racks, protective covers and custom modular industrial structures. For industrial users, it can be used as a strong frame component for automation support, assembly line fixtures, equipment guards, customized workstation systems and production line structures. For DIY and maker users, it can also be used for stronger CNC or laser enclosure frames, workshop structures, display frames, tool stands and custom modular builds.
The 40120 aluminum extrusion profile is suitable for projects that need more strength, wider support and better rigidity than 40×40, 40×60 or 40×80 profiles while still keeping a modular and easy-to-assemble structure. For heavy equipment bases, long-span machine structures, high-load industrial frames or structures that require higher load capacity, larger aluminum profiles such as 80120, 8080, 100100 or other heavy-duty series may be recommended. Choosing the correct aluminum profile size helps improve frame stability, reduce vibration and avoid unnecessary material cost. If you are not sure which profile size is suitable for your project, Melorae Supply can help recommend a profile series based on your frame size, load requirement, installation method and usage environment.
This 40×120 aluminum profile can be supplied with matching accessories, including T-slot nuts, corner brackets, bolts, internal connectors, joining plates, end caps, leveling feet, caster wheels, hinges, handles and panel mounting components. These accessories allow customers to build a complete modular aluminum frame system instead of purchasing only individual aluminum bars. Custom cutting, drilling, tapping and accessory matching are available according to your drawing, sketch, sample photo or required dimensions.
The standard surface finish is silver anodized, providing a clean industrial appearance and improved corrosion resistance for indoor workshop, factory and equipment applications. Black anodized finish and other surface options may be available depending on order quantity and project requirements. The modular T-slot design also helps reduce assembly time and makes future maintenance or structural changes easier.
Melorae Supply focuses on modular industrial structure solutions, not only individual aluminum extrusion profiles. We can support customers with aluminum profile selection, connector matching, custom length cutting and complete frame quotation for workstations, machine guards, lean production systems, storage racks, conveyor supports, assembly line fixtures, automation support structures and custom modular frames.
Key Features
- 40mm × 120mm aluminum T-slot extrusion profile
- Stronger structure than 4040, 4060 and 4080 aluminum extrusion profiles
- Suitable for strong modular frames, machine bases and long support structures
- Wide rectangular 40 series profile design for improved rigidity and frame stability
- Multiple T-slots for flexible accessory mounting and frame assembly
- Compatible with T-slot nuts, brackets, fasteners and connectors
- Clean anodized surface for corrosion resistance and easy maintenance
- Easy to cut, drill, tap, assemble, modify and expand
- Custom length cutting and accessory matching available
- Suitable for industrial, workshop, CNC, production line and automation applications
Applications
- Strong machine frames
- Modular workstation frames
- Machine guard structures
- Conveyor support frames
- Automation equipment frames
- Equipment racks and equipment stands
- Machine bases and support structures
- CNC support frames and Z-axis support structures
- Long support beams and frame rails
- Protective enclosures
- Display racks and display stands
- Inspection fixtures and test tables
- Operation desks and production line structures
- Panel mounting structures
- DIY modular structures
- CNC and laser enclosure frames
Specifications
- Product Name: 40120 Aluminum T-Slot Extrusion Profile
- SKU: AP-40120-EU
- Profile Size: 40mm × 120mm
- Series: 40120 Series
- Standard: European Standard
- Slot Type: T-Slot
- Slot Width: 8mm / 8.2mm
- Material: Aluminum Alloy
- Common Grade: 6063-T5 / 6063-T6 / EN-AW 6063 T66
- Surface Finish: Silver Anodized
- Optional Finish: Black Anodized
- Standard Length: 6.00m / 6.09m
- Custom Length: Available
- Approx. Weight: 4.28–4.58kg/m
- Processing Options: Cutting, drilling, tapping, connector matching and frame assembly
- Typical Applications: Workstations, machine guards, conveyor supports, automation equipment, equipment racks, CNC support frames, machine bases and modular structures
Related 40120 Aluminum Extrusion Resources
For lighter modular frame structures, you can compare this product with our 4060 aluminum extrusion profile, 4080 aluminum extrusion profile and 30120 aluminum extrusion profile. For stronger industrial frames, larger aluminum profile series such as 80120, 8080 and 100100 may be recommended depending on load capacity, frame size and application requirements.
For general information about aluminum materials and industrial aluminum applications, you may also refer to The Aluminum Association.
FAQ
Q1: What is 40120 aluminum extrusion used for?
40120 aluminum extrusion is used for modular workstation frames, machine guards, conveyor support structures, automation equipment frames, equipment racks, CNC support frames, machine bases, protective enclosures, inspection fixtures, test tables and strong industrial structures.
Q2: What does 40120 mean in aluminum extrusion?
40120 means the aluminum profile has a 40mm × 120mm cross section. It is a wide rectangular profile size commonly used in 40 series modular aluminum framing systems.
Q3: What is the difference between 4080 and 40120 aluminum extrusion?
4080 aluminum extrusion has a 40mm × 80mm cross section, while 40120 aluminum extrusion has a 40mm × 120mm cross section. The 40120 profile provides wider support, better rigidity and stronger frame stability than 4080.
Q4: Is 40120 aluminum extrusion suitable for machine frames?
Yes. 40120 aluminum extrusion is suitable for strong machine frames, equipment racks, automation fixtures, conveyor supports, CNC support structures and industrial support frames. For very heavy equipment bases or long-span high-load frames, larger profiles such as 80120, 8080 or 100100 may be recommended.
Q5: Can the 40120 aluminum extrusion be cut to custom length?
Yes. Custom cutting is available. Drilling, tapping and accessory matching can also be provided according to project requirements.
Q6: What accessories are compatible with 40120 T-slot profiles?
Common accessories include T-slot nuts, corner brackets, bolts, internal connectors, joining plates, end caps, leveling feet, caster wheels, hinges, handles and panel mounting parts.
Q7: Can 40120 aluminum extrusion be used for CNC structures?
Yes. 40120 aluminum extrusion can be used for CNC support frames, CNC enclosure frames, machine bases, Z-axis support structures and modular equipment frames where better rigidity and stability are required.
Q8: How is the price calculated?
The reference price starts from $11.80 per meter. The final price depends on length, quantity, surface finish, cutting, drilling, tapping, packaging and accessories.
Q9: Can Melorae Supply provide a complete modular frame solution?
Yes. Melorae Supply can provide aluminum profiles, connectors, fasteners, casters, leveling feet, panel accessories and custom frame quotations based on drawings, dimensions or application requirements.
Q10: What information should I provide for a quotation?
Please provide the required profile length, quantity, surface finish, application, drawing, sketch or sample photo. If you need a complete frame system, please also provide the frame size, load requirement and accessory requirements.
Reference price starts from $11.80 per meter. The final price depends on profile length, order quantity, surface finish, cutting requirement, drilling, tapping, packaging and accessories. Please contact us with your required length, quantity, drawing or application details for an accurate quotation.
Related Aluminum Profile Options
Melorae Supply provides different T-slot aluminum extrusion profiles for modular frames, workbenches, automation equipment, machine guards, carts, racks and custom industrial structures. You can compare different profile sizes based on load requirement, frame size and application.
- 2020 Aluminum Extrusion Profile – compact profile for light-duty frames and small structures.
- 2040 Aluminum Extrusion Profile – rectangular profile for modular workbench and machine frame applications.
- 3030 Aluminum Extrusion Profile – versatile square profile for industrial frames, carts and racks.
- 4040 Aluminum Extrusion Profile – common industrial profile for workbenches, machine frames and equipment structures.
- 4080 Aluminum Extrusion Profile – strong rectangular profile for machine bases and heavy modular frames.
- 40120 Aluminum Extrusion Profile – reinforced profile for large structural frames and heavy-duty applications.
- View All Aluminum Profile Systems – compare available T-slot aluminum extrusion profiles.
Request a Custom Aluminum Profile Quote
If you need aluminum profiles cut to length, machined, drilled, tapped or matched with accessories, please send your required profile model, length, quantity, drawing, machining requirements and delivery destination. You can contact us through our Contact Us page, email us at sales@meloraesupply.com, or reach us on WhatsApp at +86 153 0757 4099.
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