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YB2 Series High Voltage Explosion-Proof High-Efficiency Three-Phase Asynchronous Motor

YBX2 Series High-Voltage Explosion-Proof High-Efficiency Three-Phase Asynchronous Motor

The YBX2 Series High-Voltage Explosion-Proof High-Efficiency Three-Phase Asynchronous Motor is designed for power systems operating in explosive gas environments such as coal mines, petrochemical plants, natural gas facilities, and fine chemical industries. The motor features a high-strength explosion-proof structure that complies with strict safety standards, ensuring long-term stable operation in hazardous areas containing Class II explosive gas mixtures.

The motor adopts a high-efficiency electromagnetic design combined with an optimized ventilation and cooling system, enhancing energy efficiency while reducing power loss, helping users lower equipment energy consumption and operating costs. Multiple cooling methods, installation forms, and wiring configurations are available to meet different working condition requirements.

  • High-voltage drive with strong power output

  • Explosion-proof grade selectable according to operational needs

  • High efficiency and low energy loss, compliant with energy-saving standards

  • Highly reliable for long-term continuous heavy-duty operation

  • Supports customized parameters and adaptation to special environmental conditions

Applications: booster stations, oil pumping stations, blowers, compressors, hoisting, and conveyor machinery in hazardous industrial environments.

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Excerpt:

The YB2 series high voltage explosion-proof high-efficiency three-phase asynchronous motor is designed for hazardous and explosive environments. With a robust flameproof structure, high efficiency, and stable performance, it is widely used in coal mines, petrochemical plants, and other industries requiring safe and reliable motor operation.

YB2 Series High-Voltage Explosion-Proof High-Efficiency Three-Phase Asynchronous Motor – Professional Overview

The YB2 series high-voltage explosion-proof high-efficiency three-phase asynchronous motor is a next-generation update to the YB series, specially designed for hazardous industrial environments such as petroleum, chemical, and coal industries. With excellent explosion-proof safety and high energy efficiency, it is the ideal motor for operation in explosive atmospheres.

1. Product Overview

The YB2 series is developed using advanced design concepts and manufacturing processes, featuring:

  • Explosion-proof safety
  • High efficiency and energy-saving
  • Reliable operation
  • Long service life

It strictly complies with:

  • GB 3836.1-2000 “Electrical Equipment for Explosive Gas Atmospheres – Part 1: General Requirements”
  • GB 3836.2-2000 “Electrical Equipment for Explosive Gas Atmospheres – Part 2: Flameproof ‘d’ Type”

Design Highlights:

  • Conforms to IEC international standards and DIN42673 for frame sizes and mounting dimensions, facilitating export and compatibility with imported equipment.
  • Fully enclosed, externally fan-cooled, squirrel-cage rotor design
  • Features compact structure, high efficiency, high torque, excellent starting performance, low noise, and low vibration

2. Core Technical Features

1. Superior Explosion-Proof Performance:

  • Explosion-proof certifications:
    • ExdⅠ: Coal mine electrical equipment
    • ExdⅡAT4 / ExdⅡBT4: Industrial factory equipment
    • ExdⅡCT4: Locations with II A, B, or C explosive gas/air mixtures, T1–T4 temperature class
  • Flameproof housing prevents internal explosions from propagating externally, ensuring safe operation in hazardous atmospheres

2. High Efficiency & Energy Saving:

  • Optimized electromagnetic design and low-loss materials
  • Maintains high efficiency across a wide load range
  • Reduces operational costs and increases energy utilization efficiency

3. Robust Structure:

  • Fully enclosed structure: IP55 protection, dust- and water-resistant
  • F-class insulation system: Ensures stability under high temperature, rated at 80K temperature rise
  • Optimized cooling: IC411 self-ventilated design for efficient heat dissipation

3. Technical Specifications

ParameterSpecification
Frame SizeH63–H355
Rated Voltage380V, 660V, 380/660V (custom up to 1140V)
Rated Frequency50Hz
ProtectionIP55
InsulationF-class
CoolingIC411 (TEFC)
DutyS1 (continuous)
MountingIMB3, IMB5, IMB35

Performance Features:

  • High efficiency reduces energy consumption
  • Low vibration and noise for smooth, quiet operation
  • Wide voltage adaptability for stable performance under various grid conditions

4. Structure & Configuration

Motor Body:

  • Flameproof enclosure designed to withstand internal explosion pressure
  • Frame with parallel cooling fins; terminal box located on top for easy wiring and maintenance
  • Terminal box supports one- or two-voltage wiring schemes

Internal Components:

  • Stator: F-class insulation, reliable and long-lasting
  • Rotor: Precision-manufactured, dynamically balanced for smooth operation

Cooling:

  • IC411 self-ventilated cooling ensures efficient heat removal under continuous load

5. Applications

Petroleum & Chemical Industry:

  • Drives oilfield drilling and extraction equipment
  • Chemical plant pumps and compressors in explosive environments

Coal Industry:

  • Underground coal mine equipment for methane and coal dust environments
  • Coal processing and preparation machinery, dust-resistant

Other Hazardous Environments:

  • Industrial sites with explosive gas mixtures
  • Special environmental variants: Outdoor (W), humid/tropical (TH), outdoor humid/tropical (WTH), etc.

6. Advantages & Value

Safety & Reliability:

  • Strict compliance with explosion-proof standards
  • High-quality materials and precision manufacturing for long-term reliability
  • H180+ frame motors equipped with oil injection/drain system for maintenance and extended service life

High Efficiency & Cost Savings:

  • Reduces operational costs through high efficiency
  • High power factor improves grid performance and reduces reactive power compensation
  • Low total lifecycle cost despite slightly higher initial investment

Maintenance Convenience:

  • User-friendly design for easy inspection and maintenance
  • Modular components reduce spare part inventory
  • F-class insulation ensures long service life and extended maintenance intervals

7. Installation & Usage Guidelines

Environmental Requirements:

  • Ambient temperature: -15°C to 35°C (coal mine) or 40°C (industrial)
  • Altitude ≤1000m
  • Max relative humidity: ≤95% (25°C) for mines; ≤90% monthly average for factories

Installation & Commissioning:

  • Solid, level foundation to support motor weight and stress
  • Precise alignment with driven machinery using couplings
  • Electrical connections per nameplate and wiring diagram; ensure proper grounding

8. Service & Technical Support

Quality Assurance:

  • Complies with GB3836 series and other relevant standards
  • Strict testing during manufacturing to ensure compliance and reliability

After-Sales Service:

  • Professional selection and installation guidance
  • Rapid response to issues during operation
  • Long-term technical support and service guarantee

Summary:
The YB2 high-voltage explosion-proof high-efficiency three-phase asynchronous motor combines excellent explosion-proof safety, superior energy efficiency, and robust industrial performance, making it an ideal solution for hazardous industrial environments. Selecting YB2 ensures reliable safety, energy savings, and comprehensive technical support from Simo Motor, promoting safe production and energy-efficient operations in industrial applications.

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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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