When choosing explosion-proof motors, the two models of YBX4 and YBX3 often make it difficult for people to make a decision. As a member of Xi'an Simo Motor, I often come into contact with customers' questions about these two motors: Which one is more suitable for my needs? What are the essential differences between the two? Today, I want to talk about these differences in a relaxed way, and how our Simo motors stand out in this competitive field.
- Performance Upgrade: YBX4 has higher efficiency.

First of all, the most significant feature of the YBX4 explosion-proof motor is its higher efficiency. This is because the YBX4 adopts the latest design standards and complies with the national IE4 energy efficiency standard, while the YBX3 mainly follows the IE3 energy efficiency standard. This means that under the same power output, the YBX4 consumes less energy, and long-term use can save a considerable amount of electricity costs for enterprises.
For example, if you operate a coal mine and the motor needs to run continuously for 8 hours a day, the YBX4 can save approximately 2% more energy per hour compared to the YBX3. Although this may not seem like much, over the course of a year, the difference in electricity bills can be quite astonishing.
- Structural Optimization: YBX4 Places Greater Emphasis on Durability
The YBX4 explosion-proof motor has significant structural improvements. For instance, it adopts an optimized design of the cooling system. Its air ducts are more reasonable, which can effectively reduce the operating temperature. This is particularly important for factories with harsh operating environments, such as chemical plants and coal mines.
In contrast, although the design of the YBX3 is also very robust, in environments with high temperatures, high humidity, or a large amount of dust, its heat dissipation performance may be slightly inferior. This is also why some customers have reported that after long-term use, the overall failure rate of the YBX4 is approximately 10% lower than that of the YBX3.
- Adaptability: YBX4 is More Flexible
The YBX4 explosion-proof motor is not only suitable for common working conditions but can also be used in a more diverse range of scenarios. For example, it has better adaptability to frequency converters and can maintain stable operation within a wider speed regulation range. When using a frequency converter with the YBX3, additional debugging and maintenance may be required.
This is crucial for industries that require precise control. For example, if you are using conveyor belts or mixers, the YBX4 will more easily meet complex control requirements.
Why Choose Xi'an Simo Motor?
At this point, some people may ask, with so many brands of explosion-proof motors on the market, why should we choose Xi'an Simo Motor?
As an enterprise that has been deeply engaged in the motor field for many years, our explosion-proof motors have unique advantages in terms of design, manufacturing, and service.
Strict Quality Control: Both our YBX4 and YBX3 explosion-proof motors use high-standard materials and processes. From the windings to the housing, every detail has been strictly inspected to ensure that the motor remains reliable under extreme conditions.
Technical Support: We not only provide high-quality products but also offer comprehensive technical support. From model selection to installation, from debugging to subsequent maintenance, professional engineers will be involved.
Localized Service: As a company based in Xi'an, we deeply understand the needs of local customers. This enables us to provide more flexible and rapid service responses.
In simple terms, the main differences between the YBX4 and YBX3 explosion-proof motors are reflected in energy efficiency, structural design, and adaptability. If you are pursuing higher efficiency, a longer service life, and a wider range of application scenarios, then the YBX4 is a better choice. However, if your budget is limited and the application scenarios are relatively simple, the YBX3 is also a highly cost-effective option.
As a staff member of Xi'an Simo Motor, I am happy to provide you with more professional advice to help you choose the most suitable explosion-proof motor. Welcome to contact us at any time to learn more about our products!