Why is there such a large price difference between motors from diffirent factories, even those with the same displacement?

Different Raw Materials: Motors involve many parts, both metallic and non-metallic, and the materials used directly affect the price.

Different Factory Types: Some factories are true manufacturers, handling everything from parts processing to overall motor assembly in their own facilities. Others simply purchase finished parts and assemble them in their own factory. This model makes it difficult to control raw materials and processing precision. Identifying the latter is relatively simple: these factories often lack customization capabilities, or their new product development cycle or costs are extremely high.

Different Production Equipment: Motor production involves many parts, and different parts require different equipment. The processing capabilities and precision of this equipment vary from factory to factory. Therefore, the products produced will naturally differ.

Different Quality Control Capabilities: Some factories only process or assemble parts and may lack quality inspection, let alone a metrology lab to control the precision of parts. Some don't even have pre-shipment testing. In this situation, they don't invest in quality control, naturally reducing costs significantly. Both manpower and resources are much lower compared to standardized factories. However, the quality in this case is clearly uncontrollable.

Factory After-Sales Service: Established, reputable factories prioritize after-sales service and have professional teams. Whenever after-sales support is needed, you can always reach the factory, and they will promptly assist you. However, some factories, while selling their products, disappear once problems arise. They are not responsible for their quality, and if quality issues or technical support are needed, the factory's management cannot be found, undoubtedly causing significant trouble for customers.