25 Series Aluminum Extrusion Profile Manufacturers

Overview: 25 Series Aluminum Extrusion Profile

The 25 Series Aluminum Extrusion Profile is a T-slot structural component with a 25 mm cross-section dimension and a 6 mm slot width. It bridges the gap between lightweight 20-series profiles and heavier 30/40-series profiles, offering a balance of strength, weight, and cost for modular framing applications. Typical uses include display stands, workstations, material handling racks, machine guards, and light-duty automation frames. As a 25 Series Aluminum Extrusion Profile manufacturer, Shanghai Huishuo Aluminum Industry Technology Co., Ltd. supplies standard and custom profiles with precision machining and surface treatment options.

This category includes three profile variants: solid square (2525), hollow lightweight (2525), and rectangular (2550). Each serves a distinct load and stiffness requirement. Below we detail the specification trade-offs, selection logic, and procurement data you need for an RFQ.

Profile Variants and Application Fit

2525 Solid Square Profile

The 2525 Industrial Aluminum Profile Square aluminum alloy cross-section Solid heavy-duty model 6mm slot width is a solid cross-section profile offering maximum bending stiffness for its size. It is the preferred choice for load-bearing columns, base frames, and cantilever arms where deflection must be minimized. The solid design also provides better thread-holding strength for tapped holes.

2525 Hollow Lightweight Profile

The Lightweight 2525 Aluminum Profile 6mm slot width Hollow corner weight-reduction design Primarily used for lightweight frames features a hollow corner geometry that reduces weight by approximately 30% compared to the solid version. It is ideal for non-structural enclosures, display frames, and portable structures where weight savings are critical and load requirements are low.

2550 Rectangular Profile

The 2550 Industrial Aluminum Profile 25×50mm rectangular cross-section 6mm slot width Multi-slot reinforced structure provides a higher moment of inertia in one axis, making it suitable for beam spans, conveyor supports, and gantry rails. The multi-slot design allows multiple T-nut insertions along the long side for flexible accessory mounting.

Critical Specifications and Trade-offs

Trade-off: Solid profiles offer maximum strength but higher weight and cost. Hollow profiles reduce material cost and weight at the expense of stiffness. Rectangular profiles provide directional stiffness, ideal for long-span applications. Select based on the load direction and deflection limits of your structure.

Material and Alloy Options

Standard alloy is 6063-T5, offering good extrudability, moderate strength, and excellent surface finish for anodizing. For higher strength requirements, specify 6061-T6 or 6005A-T6. The T5 temper is achieved by cooling and artificial aging, while T6 requires solution heat treatment and artificial aging, yielding higher tensile strength (up to 310 MPa for 6061-T6). Confirm the alloy and temper in your RFQ, as it affects load capacity and machinability.

Surface Treatment and Corrosion Resistance

Standard surface finish is silver anodizing (AA10–AA15). Options include black anodizing, powder coating (RAL colors), and electrophoresis. Anodizing provides a hard, corrosion-resistant layer (5–25 µm) and is suitable for indoor use. For outdoor or harsh environments, specify powder coating or fluorocarbon painting. The factory offers 6 surface treatment lines including anodizing, powder coating, electrophoretic coating, and fluorocarbon painting. Request a salt spray test report if corrosion resistance is critical.

Custom Machining and Integration

Shanghai Huishuo provides CNC precision machining with tolerance down to 0.01 mm and machining diameter up to 6.5 meters. Common operations include drilling, tapping, milling, cutting, and bending. For 25-series profiles, specify hole patterns, counterbores, and thread depths for T-nut or bolt connections. The factory also offers custom mold making for non-standard cross-sections. If your design requires a unique slot geometry or profile shape, provide a 2D/3D drawing for mold feasibility assessment.

Accessories and Assembly

Complete your structure with compatible Aluminium Profile Accessories including T-nuts, bolts, brackets, corner connectors, and end caps. The 6 mm slot is compatible with standard M6 and M8 T-nuts. For heavy-duty joints, use Aluminium Profile Connectors such as L-brackets or gusset plates. Pre-assembly or kit supply can be arranged to reduce on-site labor.

Quality Assurance and Testing

The supplier maintains a quality control department with image measuring instruments, tensile testing machines, and coordinate measuring machines. Request a material test certificate (EN 10204 3.1) and dimensional inspection report for each batch. For critical applications, specify 100% dimensional inspection of slot width and straightness (tolerance ≤ 0.5 mm/m). The factory holds Quality Management System Certification (ISO 9001) and utility model patents.

Buyer RFQ Checklist

• ☐ Profile variant: Specify 2525 solid, 2525 hollow, or 2550 rectangular.
• ☐ Alloy and temper: 6063-T5, 6061-T6, or other.
• ☐ Length and quantity: Standard lengths 6 m or custom cut-to-size.
• ☐ Surface finish: Silver/black anodizing, powder coating (RAL code), or electrophoresis.
• ☐ Machining: Drilling, tapping, milling – provide 2D/3D drawing with tolerances.
• ☐ Accessories: T-nuts, bolts, connectors, end caps – list part numbers and quantities.
• ☐ Packaging: Individually wrapped or bundled; export wooden crates required?
• ☐ Certification: Material test certificate, dimensional report, salt spray test (if needed).
• ☐ Lead time: Standard stock or custom extrusion (mold making time if non-standard).
• ☐ Delivery terms: FOB Shanghai, CIF, or EXW.

Supplier Evaluation Criteria

When evaluating a 25 Series Aluminum Extrusion Profile supplier, consider the following:

• Extrusion capacity: Number of extrusion lines and tonnage range (e.g., 600T–5000T).
• CNC capability: Maximum machining envelope and tolerance (0.01 mm achievable).
• Surface treatment: In-house lines for anodizing, powder coating, etc.
• Quality system: ISO 9001 certification and in-house testing equipment.
• Experience: Years in business and number of mold development projects.
• Lead time: Typical 2–4 weeks for standard profiles, 4–8 weeks for custom extrusion including mold making.

Shanghai Huishuo operates 13 extrusion lines and 26 CNC machining centers, with three production bases covering 30,000 m². They have over 16 years of experience in aluminum profile customization.

Frequently Asked Questions