In the field of high - efficiency motors, especially when it comes to the selection of explosion - proof motors, the YBX4 and YBX3 series motors often appear on people's purchase lists. What are the differences between these two? As a professional in the industry, I hope to interpret the characteristics of the two in a simple and clear way and share some of my insights.
- Efficiency and Energy Consumption: YBX4 Excels

First of all, let's look at it from the perspective of efficiency and energy consumption. The YBX3 series explosion-proof motors have already met the national high-efficiency standards, but the YBX4 goes a step further, meeting and even exceeding the IE4 international energy efficiency standards. Specifically, at the same power level, the energy consumption of the YBX4 can be approximately 5% - 10% lower than that of the YBX3. For industries sensitive to energy costs (such as the chemical and mining industries), this is undoubtedly a great advantage.
For example, after our customer replaced the motors with the YBX4 series, the annual electricity cost was reduced by nearly 200,000 yuan. These seemingly insignificant differences in energy consumption can accumulate to bring tangible economic benefits.
- Structure and Materials: Higher Reliability
The YBX4 series explosion-proof motors have been further optimized in terms of design and materials. For instance, the YBX4 uses higher-grade insulation materials and protective measures, which can better withstand harsh working environments. This is particularly important for the mining, tunnel, and petrochemical industries.
Although the YBX3 also has a high standard in structural design, it may require more maintenance during long-term operation. This doesn't mean that the YBX3 performs poorly. Instead, after the technical upgrade, the YBX4 places more emphasis on reliability and a low failure rate.
As a technical staff member of Xi'an Taifu Simo Motor, we are well aware of customers' high requirements for equipment stability. Therefore, when recommending products, we usually give priority to the YBX4 series, especially for some key production equipment. Reducing downtime is the best way to cut costs.
- Application Scenarios and Adaptability: The Wide Adaptability of YBX4
There are also differences in their application scenarios. The YBX3 is suitable for ordinary explosion-proof scenarios, such as gas explosion environments of Class IIB. The YBX4,A and II on the other hand, has added support for Class IIC gas (such as hydrogen) environments, and at the same time, it can meet the higher standards of Temperature Class T4 and below in terms of temperature groups.
Once, when my team provided a solution for a chemical enterprise, we found that the environmental humidity in its workshop was extremely high and the gas composition was complex. Eventually, we recommended that it use the YBX4 series motors and customized heat dissipation and protection solutions for it. After one year of operation, the equipment was in good condition, and the customer's feedback was very satisfactory.
The Advantages of Our Company: The Choice of Xi'an Taifu Simo Motor
As an enterprise specializing in the production of YTM, YHP, and YMPS series 6KV coal mill motors, our R & D team has always been committed to the development of high-efficiency motors. We not only provide the YBX4 series motors but also can offer customized solutions according to customers' specific needs.
During the process of cooperation with customers, we have deeply realized that only by considering issues from the user's perspective can we win their trust. For example, the high-efficiency motors we designed for a mining enterprise not only reduced energy consumption but also extended the service life of the equipment. These successful cases have made us more determined to adhere to the concept of "customer-centeredness".
How to Choose a More Suitable Explosion-proof Motor?
If you are looking for a more efficient, reliable, and widely adaptable motor, then the YBX4 series is undoubtedly the best choice. The YBX3, on the other hand, is suitable for users with a limited budget but still in need of reliable performance. For those enterprises that are looking for high-quality motors, I sincerely recommend Xi'an Taifu Simo Motor, because we not only have excellent products but also can provide professional technical support and after-sales service.