Foshan Beirio Electromechanical Equipment Co., Ltd. (KAKU South China Branch) is a subsidiary established by Taiwan KAKU in the South China region of mainland China. It is responsible for the sales of KAKU's existing products and the promotion and trial marketing of new KAKU products in the South China market. There are many counterfeit KAKU products on the market. To protect your customers' interests, please choose genuine KAKU products. The KAKU (KA2206HA2B) axial fan achieves energy savings of up to 50% and has been awarded the European Energy Star title. The unilateral gap refers to the clearance between the inner diameter of the fan stator and the outer diameter of the rotor. The entire operation process of the fan is: electrical energy → magnetic energy → mechanical energy → wind energy. The smaller the gap between the rotor and stator, the more magnetic field lines the rotor can cut, resulting in greater kinetic energy. When the rotor is farther from the magnetic field, increased current is required to enhance the magnetic field force. Therefore, reducing the unilateral gap can lower current and power consumption, achieving energy-saving effects. Traditional fans have a unilateral gap of 0.45mm–0.55mm. Because the bearing seat uses copper inserts in die-casting, it is difficult to ensure perpendicularity between the bearing seat and the outer frame. Thus, the outer diameter of the rotor must be reduced to prevent friction with the stator, requiring a unilateral gap of 0.45mm–0.55mm. The KAKU axial fan has a unilateral gap of ≤0.3mm. The outer frame and bearing seat are integrally formed using composite tools, ensuring perpendicular accuracy within ±0.03mm. The stator is processed with fully automatic hydraulic stator insertion equipment to maintain the deformation range of the inner diameter. The rotor is machined using CNC precision lathes, with diamond tool trimming to control the deformation range within ±0.015mm. The extremely small unilateral gap and minimal variation in rotor outer diameter enable the KAKU (KA2206HA2B) axial fan to achieve energy savings of up to 50%, earning it the European Energy Star title. Common KAKU axial fan models include: KA1238HA2B, KA1725HA2B, KA1505HA2B, KA1606HA2B, KA1806HA2B, KA2206HA2B, KA2208HA2B, KA2072HA2B, KA2509HA2B