• Balance Between Material Strength and Lightweight: The blade must withstand the huge centrifugal force generated by high-speed rotation, while maintaining an extremely low weight to reduce inertia and improve response speed.

• Precision Forming of Complex Curved Surfaces: The streamlined curved surface of the blade is the key to its aerodynamic performance. Traditional 3-axis CNC machining struggles to complete the machining of these complex curved surfaces in one go, which easily leads to reduced precision and rough surfaces.

• Extremely High Dimensional and Precision Requirements: The size and angle of the blade must be highly accurate; any tiny deviation may cause fan vibration, reduced efficiency, or even failure.

• Fine Surface Treatment: The blade surface needs to be smooth and burr-free to reduce air resistance and improve fan performance.

• Superior Performance of “Super Hard Aluminum”: 7075 aluminum alloy is one of the highest-strength grades among aluminum alloys. Its high strength and hardness enable it to withstand the huge stress generated by high-speed rotation, ensuring the safety and durability of the blade. Its typical tensile strength reaches ≥570 MPa, and yield strength ≥500 MPa, fully meeting the mechanical performance requirements of high-speed fan blades.

• Lightweight Characteristics: Despite its extremely high strength, the density of 7075 aluminum alloy (approximately 2.81 g/cm³) is still much lower than that of steel. This allows the blade to achieve lightweight, thereby reducing the overall weight of the fan and improving energy efficiency.

• Integrated Forming of Complex Curved Surfaces: Our 5-axis CNC machining center can perform cutting on multiple directions of the part simultaneously. This enables us to complete the finishing of all complex curved surfaces of the blade in a single clamping, ensuring the perfect accuracy of the blade shape. For example, the contour tolerance of the streamlined airfoil surface can be controlled within ±0.02 mm, and the surface roughness Ra ≤0.8 μm.

• Ultra-High Precision Guarantee: The integrated machining process completely eliminates cumulative errors caused by multiple clampings, ensuring that both the dimensional precision and positional precision of the blade meet the customer’s strict requirements (e.g., the angle deviation of the blade tip is ≤0.01°, and the coaxiality of the mounting holes is ≤0.005 mm), thereby guaranteeing the high performance of the fan.

• High Efficiency and High Quality: 5-axis machining technology significantly shortens the production cycle—compared with traditional 3-axis machining, the processing time per blade is reduced by approximately 40%. At the same time, it ensures that the quality of each blade is highly consistent, effectively improving production efficiency and yield rate (yield rate ≥99.5%).

• Ultimate Guarantee of Performance and Reliability: The blades we manufactured have excellent strength and aerodynamic performance. They can stably operate at a high speed of 15,000-20,000 rpm for a long time without deformation, and the fan efficiency is improved by 12% compared with the original steel blade scheme, while the noise level is reduced by 5 dB(A).

• Maximized Design Freedom: 5-axis machining technology can perfectly realize complex curved surface designs (such as variable-section airfoils optimized for aerodynamics), providing unlimited possibilities for the customer’s product innovation and helping them launch high-performance fan products with market competitiveness.

• High Quality and Cost-Effectiveness: Although the investment in 5-axis machining equipment is high, the high efficiency and high yield it brings enable us to provide customers with highly competitive prices in medium-to-high batch production (e.g., for an order of 500 blades, the unit cost is 18% lower than that of 3-axis machining with secondary clamping).

Whether you need complex high-precision parts or personalized machining solutions, we can provide you with reliable support. With advanced CNC machining technology and a professional team, we promise to respond quickly to your needs and ensure that every part meets your expectations.

We are always here to help you turn your parts from concept to reality. From technical consultation to cost evaluation, our team of experts will support you all the way. Submit your requirements now and get a fast and accurate quote.

Advantages of contacting us:

• Fast response: Ensure that your requirements are handled in the first time.
• Professional support: Experienced engineers provide you with technical guidance and solution suggestions.
• Flexible processing: We can meet it efficiently whether it is a prototype or a batch order.