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YBX3 Series Explosion-Proof High Efficiency Three-Phase Asynchronous Motor

YBX3 Series Explosion-Proof Ultra-High Efficiency Three-Phase Asynchronous Motor

The YBX3 Series Explosion-Proof Ultra-High Efficiency Three-Phase Asynchronous Motor is specially designed for coal mining, petrochemical, natural gas, and other flammable and explosive industrial environments, combining energy efficiency, high performance, and safety. The motor features advanced electromagnetic design and an explosion-proof enclosure, ensuring stable operation in hazardous environments while effectively reducing energy consumption and operational costs.

The motor has a compact and robust structure, with upgraded bearings and insulation systems capable of withstanding heavy loads and long-duration continuous operation. It supports multiple explosion-proof grades, cooling methods, installation types, and customizable voltage parameters, flexibly adapting to various industrial production equipment.

  • Ultra-high efficiency electromagnetic design reduces energy consumption

  • Explosion-proof grade selectable according to site conditions

  • High power density output, low temperature rise, stable performance

  • Long-life bearings and optimized insulation system, extended maintenance intervals

  • Supports customized installation and operating parameters

Applications: underground coal mining equipment, petrochemical processing systems, oil and gas transmission, and industrial power equipment in hazardous environments.

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Excerpt:

The YBX3 series explosion-proof high efficiency three-phase asynchronous motor is designed for hazardous environments with explosive gases or dust. Complying with IE3 efficiency standards, it features a flameproof structure, stable performance, and reliable operation, making it widely used in petrochemical, chemical, and mining industries.

YBX3 Series Explosion-Proof High-Efficiency Three-Phase Asynchronous Motor – Safe and Energy-Efficient Power Solution

In hazardous operating environments such as petroleum, chemical processing, and coal mining, the YBX3 Series explosion-proof high-efficiency three-phase asynchronous motor stands out with its excellent explosion-proof safety and outstanding energy efficiency. It has become a preferred power solution for enterprises seeking safe operation, energy saving, and cost reduction.

Product Overview

The YBX3 Series explosion-proof three-phase induction motor is a new-generation explosion-proof power product developed by SIMO Motor using advanced technology and optimized design. It features high explosion-proof safety, high efficiency, reliable operation, and long service life.
The motor strictly complies with GB 18613-2020 (Minimum Allowable Values of Energy Efficiency and Energy Efficiency Grades for Small and Medium Three-Phase Asynchronous Motors) as well as GB 3836.1-2010 and GB 3836.2-2010 explosion-proof standards.

The YBX3 series adopts a totally enclosed fan-cooled (TEFC, IC411) design. Frame sizes range from H80 to H355, with a power range of 0.75 kW to 315 kW, meeting the power requirements of a wide variety of industrial applications.
As an upgraded replacement for the YB3 explosion-proof motor, the YBX3 series shows significant improvements in energy efficiency, explosion-proof performance, and operational reliability, making it an ideal drive solution for hazardous environments.


Key Technical Features

1. Excellent Explosion-Proof Performance

The YBX3 series features an advanced flameproof (Ex d) enclosure design. In the event of an internal explosion, the flameproof housing effectively prevents flame and pressure transmission to the surrounding environment. Explosion-proof markings include:

  • Ex d I – Electrical equipment for coal mines
  • Ex d II A T1–T4 / Ex d II B T1–T4 – Suitable for IIA and IIB explosive gas atmospheres
  • Ex d II C T1–T4 – Suitable for IIC explosive gas environments

The standard enclosure protection level is IP55, providing excellent resistance against dust and water ingress for harsh industrial conditions.


2. High Efficiency and Energy-Saving Performance

The efficiency of the YBX3 series meets GB 18613-2020 Grade 3, equivalent to IEC IE3 efficiency level under IEC 60034-30.

Through optimized electromagnetic design and the use of low-loss materials, the motor maintains high efficiency across a wide load range. Compared with conventional explosion-proof motors, total losses are significantly reduced, helping users achieve lower operating costs and improved energy utilization.


3. Robust and Durable Structural Design

The YBX3 series is manufactured with high-quality materials and reinforced processes:

  • Stator windings: F-class insulation with VPI (Vacuum Pressure Impregnation) treatment, forming a solid integrated structure with excellent electrical, mechanical, moisture-resistant, and thermal stability
  • Rotor structure: Die-cast aluminum rotor, dynamically balanced to ensure smooth operation and low vibration
  • Bearing system: Low-vibration, low-noise bearings; frame size H160 and above equipped with on-line grease inlet and outlet devices, enabling maintenance without shutdown and extending service life

Technical Specifications

  • Frame size: H80 – H355
  • Rated power: 0.75 kW – 315 kW
  • Rated voltage: 380 V (other voltages available on request)
  • Rated frequency: 50 Hz
  • Poles: 2P / 4P / 6P / 8P
  • Protection class: IP55
  • Insulation class: F (B-class temperature rise)
  • Cooling method: IC411 (TEFC)
  • Duty type: S1 (continuous duty)
  • Mounting types: IMB3, IMB5, IMB35, etc.

Application Areas

With reliable explosion-proof safety and high efficiency, the YBX3 series is widely used in:

1. Petrochemical Industry

  • Oil drilling and extraction equipment
  • Pumps and compressors in chemical plants
  • Power drives for flammable and explosive environments

2. Coal Mining Industry

  • Underground fixed equipment (non-mining faces), such as pumps and fans
  • Coal preparation and processing machinery, suitable for dusty environments

3. Other Hazardous Locations

  • Industrial sites with Class II explosive gas mixtures
  • Special versions available for outdoor (W), humid tropical (TH), and dry tropical (TA) environments

Product Advantages and Value

1. Safety and Reliability

  • Designed and manufactured in strict accordance with national explosion-proof standards
  • Advanced flameproof structure ensures safe operation in explosive atmospheres
  • High-quality materials and precision manufacturing guarantee long-term stable performance
  • Optional protection devices such as stator temperature monitoring, bearing temperature monitoring, and anti-condensation heaters enhance operational safety

2. High Energy Efficiency Benefits

  • High-efficiency design significantly reduces energy consumption
  • Faster return on investment through lower operating costs
  • High power factor improves grid quality and reduces reactive power compensation requirements
  • Low total cost of ownership over the motor lifecycle

3. Easy Maintenance

  • Main terminal box mounted on top of the frame, rotatable left or right to meet different cable entry requirements
  • On-line bearing lubrication system for frame size H160 and above, allowing maintenance without stopping the motor
  • Long service life with F-class insulation and large thermal margin

Installation and Operation Guidelines

Installation Environment

  • Ambient temperature: -15°C to +35°C (coal mines), -15°C to +40°C (industrial plants)
  • Altitude: ≤ 1000 m (special design available for high altitude)
  • Relative humidity: ≤ 95% at 25°C

Installation and Commissioning

  • Voltage fluctuation within ±5% (short-term ±10%)
  • Frequency fluctuation within ±2% (short-term ±5%)
  • Transmission methods: elastic coupling, spur gear, or belt drive
  • Starting methods: direct-on-line (DOL), star-delta, reduced voltage, or variable frequency drive (VFD)

Service and Technical Support

SIMO Motor provides comprehensive service and technical support:

  • Professional hotline: 400-066-5888
  • Fast response system with on-site service within 48 hours when required
  • Expert consultation for motor selection, installation, and application

Conclusion

The YBX3 Series explosion-proof high-efficiency three-phase asynchronous motor combines reliable explosion-proof safety, high energy efficiency, robust construction, and stable performance, making it an ideal power solution for hazardous industrial environments.

Choosing the YBX3 series means choosing safety, efficiency, durability, and professional technical support, helping enterprises achieve safe production, energy savings, and sustainable development.

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Simo Motor After-Sales Service Policy: Quality First, Customer Foremost

Sincere, Attentive, Dedicated — Simo Always Cares


Preface

Thank you for choosing Simo Motor products. As a company with many years of experience in motor manufacturing, Simo Motor always adheres to the principle of "Quality First, Customer Foremost." Through a comprehensive service system, we ensure that every customer enjoys efficient and professional after-sales support.

Our products have repeatedly been awarded provincial, municipal, and national honors such as “High-Quality Product,” “China Famous Brand Product,” “National Exemption from Inspection Product,” and “China Well-Known Trademark.” To further enhance customer experience, we have formulated this after-sales service policy, aimed at providing comprehensive, prompt, and satisfactory service guarantees.


1. Quality Assurance Commitment

Simo Motor strictly implements full quality control in accordance with international standards, national standards, industry standards, and corporate standards:

  • All products are manufactured under the effective operation of the GB/T 19001-2008/ISO 9001:2008 Quality Management System, ensuring rigorous inspection from raw material intake to final product delivery.

  • We guarantee that all products provided are brand new, unused, and meet the quality requirements stipulated in customer contracts.

  • We maintain a quality management system compliant with GB/T 19001-2000 idt ISO 9001:2000, ensuring its effective operation.


2. Pre-Sales Service

To help customers make the best choice, Simo Motor provides comprehensive pre-sales support:

  • Professional Technical Consultation: Responding to customer inquiries about motor products and technical issues.

  • Personalized Solutions: Objectively introducing Simo Motor product features and performance, and providing customized power solutions.

  • Comprehensive Product Information: Providing detailed quotations, drawings, and motor samples to help customers fully understand the product.


3. Ordering Instructions

To ensure the motor meets your usage requirements, please specify the following parameters when placing an order:

  • Basic Parameters: Motor model, rated power, rated voltage, number of poles, rated frequency.

  • Installation Environment: Protection level, cooling method, installation type, rotation direction, environmental conditions, cable exit position.

  • Usage Conditions: Installation altitude, working environment temperature, motor load type.

For special requirements, a separate technical agreement must be signed before placing an order. You may also call our customer service hotline 159-0292-3228 for professional guidance.


4. Warranty Policy Details

1. Warranty Period

Simo Motor provides a warranty of up to two years from the shipping date. Within this period, if the motor is damaged or cannot operate properly due to manufacturing defects, Simo Motor will repair or replace parts or the motor free of charge.

2. Warranty Coverage

  • The warranty covers product quality issues caused by our company, with free replacement of parts or free repair.

  • Warranty services require correct use and regular maintenance, following the original operation manual and recommended lubrication, cleaning, and care instructions.

3. Exclusions from Warranty

The following are not covered by the warranty:

  • Damage caused by non-designated personnel

  • Unauthorized modifications or self-repair

  • Use of non-official parts or software

  • Failure to follow operation manual instructions for use, handling, and maintenance

  • Damage caused by natural disasters (wind, fire, flood, earthquake, etc.)

  • Normal wear and tear under standard use


5. Post-Warranty Service

After the warranty expires, Simo Motor continues to provide service support:

  • Lifetime Paid Service: After the warranty period, if the product fails, we offer lifetime paid service, supplying consumable parts and components at cost price.

  • Regular Follow-Up: Our after-sales staff will periodically contact users to check product status and address potential issues.

  • Professional Repair Services: The company undertakes repair services for all types of motors, whether under warranty or not, providing professional maintenance and inspection.


6. Service Commitment and Standards

Simo Motor upholds the "Sincere, Attentive, Dedicated — Simo Always Cares" Three-Heart Service Philosophy, ensuring excellent customer experience through standardized service processes:

  • Professional Service Team: A dedicated team provides installation guidance, fault diagnosis, and repair services, ensuring efficient motor operation.

  • Rapid Response Mechanism: After receiving customer feedback, our after-sales team responds promptly and formulates quick solutions.

  • Full Tracking and Records: All service processes are documented to ensure traceability and continuous improvement of service quality.


7. Customer Complaint Channels

If you are not satisfied with Simo Motor’s services, please provide feedback through the following channels:

  • Direct complaints to the service department or headquarters

  • Call our customer service hotline: 159-0292-3228

We take every feedback seriously and continuously strive to improve our service quality.


Conclusion

Simo Motor will continue to provide high-quality products and professional after-sales service. Through a complete service system, we solve your concerns and ensure peace of mind. We firmly believe that only with customer success can Simo Motor grow. Choosing Simo Motor means choosing quality and trust.

Simo Motor — Dedicated Service, Creating the Future Together!

Simo Motor Brand Advantages: Outstanding Quality, Leading Innovation and Development in the Motor Industry

Over 60 Years of Professional Experience, Setting the Benchmark in the Motor Industry


Brand Heritage and Strength

Simo Motor (formerly Xi’an Motor Factory) was established in 1955. As one of the leading enterprises in China’s motor industry, it has over six decades of manufacturing experience and technical expertise. Today, the company has grown into a large-scale modern enterprise integrating motor product R&D, manufacturing, and sales. Its products are widely used in key sectors such as power, coal, petroleum, mining, metallurgy, railways, transportation, chemical, agriculture, water conservancy, and aviation.

With profound technical expertise and continuous innovation, Simo Motor has built a prestigious brand image in the motor industry. Its products are exported to more than 40 countries and regions, including North America, Europe, the Middle East, Southeast Asia, Africa, and Australia, earning trust and praise from global customers.


Core Technology Advantages

1. Leading R&D and Innovation Capability

Simo Motor treats technological innovation as the core driving force of enterprise development:

  • Professional R&D Team: Composed of senior engineers and technical experts focusing on cutting-edge motor technology research and applications.

  • Continuous Investment in Technology: 5%-7% of annual sales revenue is invested in R&D to ensure continuous innovation and product upgrades.

  • Patented Technology Achievements: Over 100 national patents, with multiple products receiving national and provincial science and technology progress awards.

  • Industry-Academia Collaboration: Strategic partnerships with renowned universities and research institutes to advance motor technology development.

2. Excellent Product Quality System

Simo Motor has established a robust quality assurance system to ensure each motor meets the highest standards:

  • International Certifications: ISO9001 Quality Management, ISO14001 Environmental Management, and OHSAS18001 Occupational Health and Safety certifications.

  • Strict Quality Control: 68 rigorous inspection processes from raw material procurement to final product delivery to ensure zero defects.

  • Advanced Testing Equipment: Equipped with international motor performance testing systems, vibration analyzers, noise measurement devices, and more.

  • Continuous Quality Improvement: Comprehensive feedback mechanisms for continuous optimization of production processes and product stability.


Product Advantages and Features

1. High-Efficiency Energy-Saving Technology

Simo Motor actively responds to national energy-saving policies with a series of high-efficiency products:

  • High-Efficiency Motor Series: Meets the national GB18613-2020 energy efficiency standards, with some products reaching IE4/IE5 ultra-high efficiency levels.

  • Energy-Saving Technology: Uses premium silicon steel, low-loss bearings, and efficient cooling systems to reduce operating energy consumption.

  • Intelligent Control Technology: Advanced variable frequency control systems optimize motor operation, improving energy savings by 15%-30%.

2. Outstanding Performance

Simo Motor products are known for high reliability, long service life, and low maintenance costs:

  • Powerful Output: Optimized electromagnetic design ensures high starting torque and strong overload capability.

  • Low Vibration and Noise: Dynamic balancing and noise reduction technologies ensure vibration and noise levels below national standards.

  • Strong Environmental Adaptability: Designed for harsh conditions with heat resistance, moisture-proof, and corrosion-resistant features.

  • Long Lifespan Design: Key components use specialized treatment and premium materials, with a design life exceeding 100,000 hours.

3. Comprehensive Product Series

Simo Motor provides a wide range of products to meet diverse customer needs:

  • High-Voltage Motors: Voltage levels of 6kV, 10kV, and power range 200–10,000 kW.

  • Low-Voltage Motors: Series such as YX3, YE3, YE4, with power range 0.55–1,000 kW.

  • Explosion-Proof Motors: Certified for use in flammable and explosive environments.

  • Special Motors: Customized for industries such as mining, metallurgy, and marine applications.

  • Non-Standard Customization: Strong ability to provide tailored solutions according to customer requirements.


Service System Advantages

Simo Motor has established a comprehensive customer service system:

  • Pre-Sales Technical Support: Professional selection guidance, solution design, and product demonstration.

  • In-Sales Support: Strict contract compliance, on-time delivery, and installation guidance.

  • After-Sales Guarantee: 24-month warranty, 24/7 technical support, 48-hour on-site service commitment.

  • Lifetime Maintenance Support: Customer equipment files maintained for full lifecycle service.


Industry Application Advantages

Simo Motor has extensive experience across key industries:

  • Power Industry: Provides reliable motors for thermal, hydro, and nuclear power.

  • Coal Industry: Explosion-proof motors certified for coal mine safety.

  • Petrochemical Industry: Corrosion-resistant and explosion-proof motors for harsh environments.

  • Metallurgy: High-overload, high-temperature resistant motors meet specialized equipment needs.

  • Transportation: Customized motors for railways, urban transit, and ports.


Brand Honors and Certifications

Simo Motor’s excellent product quality and market performance have earned multiple honors:

  • China Famous Brand Product, National Exemption from Inspection Product, China Well-Known Trademark

  • High-Tech Enterprise, Provincial Enterprise Technology Center

  • Multiple provincial and ministerial-level science and technology awards

  • Credit-worthy and trustworthy enterprise, AAA-level quality reputation


Conclusion

Choosing Simo Motor means choosing reliable quality, leading technology, and comprehensive service support. Over 60 years of professional accumulation have given Simo Motor deep technical expertise and rich industry experience, providing customers with the best motor products and complete power solutions.

In the future, Simo Motor will continue to adhere to the philosophy of “Quality First, Innovation Driven, Customer Foremost”, constantly improving product technology and quality, creating greater value for customers, and contributing to the development of China’s motor industry.

Simo Motor — Powerful, Efficient, and Fully Supported!

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