WOLONG YBX3 Flameproof High-Efficiency Three-Phase Asynchronous Motor

2026-07-27

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In modern industrial environments, reliability, energy efficiency, and safety are essential requirements for electric motors operating in hazardous areas. WOLONG Electric Nanyang Explosion Protection Group Co., Ltd. provides high-quality explosion-proof motors that meet these demanding requirements. One of its representative products is the YBX3-280M-4 High-Efficiency Flameproof Three-Phase Asynchronous Motor, designed for industries where explosive gases may be present.

The YBX3-280M-4 motor delivers a rated power of 90 kW with a rated speed of 1483 rpm at 50 Hz. It operates on 400/690 V and achieves an impressive IE3 Premium Efficiency level with an efficiency of 95.2%, helping users reduce energy consumption and operating costs while maintaining stable performance.

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Safety is a key advantage of this motor. It is certified with Ex db IIB T4 Gb explosion protection, making it suitable for hazardous environments such as oil and gas, petrochemical plants, chemical processing facilities, mining operations, and other industries where flammable gases may exist. The motor is manufactured in accordance with Q/NF215.7-2023 and holds the explosion-proof certificate CNEx24.4743X, ensuring compliance with stringent safety standards.

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Designed for long-term industrial service, the motor features an IP55 protection rating to resist dust and water ingress and an F-class insulation system for enhanced thermal performance. Operating under S1 continuous duty, it provides reliable operation even during prolonged use. With an ambient temperature range of −20°C to +55°C, the motor is capable of performing efficiently in various environmental conditions.

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The YBX3-280M-4 is equipped with high-quality bearings (6317/C3 on the drive end and 6314/C3 on the non-drive end), ensuring smooth operation, reduced vibration, and extended service life. Despite its robust construction and weight of approximately 770 kg, the motor is engineered for high reliability and low maintenance requirements.

As a leading manufacturer of explosion-proof motors, WOLONG Electric Nanyang Explosion Protection Group Co., Ltd. is committed to delivering innovative, energy-efficient, and safe motor solutions to customers worldwide. With advanced manufacturing technology, strict quality control, and comprehensive technical support, WOLONG products have earned the trust of customers across the energy, chemical, mining, metallurgy, and manufacturing sectors.

The YBX3-280M-4 Flameproof High-Efficiency Three-Phase Asynchronous Motor is an ideal choice for industrial users seeking maximum safety, excellent energy efficiency, and dependable performance in hazardous applications. It combines advanced explosion-proof technology with premium efficiency to help businesses improve productivity while ensuring operational safety.

Case Study: Reliable Power Solution for a Petrochemical Plant

Project Background

A large petrochemical plant required a high-performance explosion-proof motor to drive its centrifugal pump system in a hazardous production area. The existing motor had been operating for many years, resulting in increased maintenance costs, reduced efficiency, and frequent downtime.

To improve operational reliability and reduce energy consumption, the customer selected the WOLONG YBX3-280M-4 Flameproof High-Efficiency Three-Phase Asynchronous Motor as the replacement solution.

Challenges

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The project required the motor to meet several critical requirements:

  • Safe operation in explosive gas environments.

  • Continuous 24/7 operation with high reliability.

  • Reduced energy consumption and operating costs.

  • Low maintenance requirements.

  • Compliance with international explosion-proof standards.

WOLONG Solution

WOLONG supplied the YBX3-280M-4 motor with the following specifications:

  • Rated Power: 90 kW

  • Rated Voltage: 400/690 V

  • Rated Speed: 1483 rpm

  • IE3 Premium Efficiency: 95.2%

  • Explosion Protection: Ex db IIB T4 Gb

  • Protection Degree: IP55

  • Insulation Class: F

  • Duty Type: S1 Continuous Duty

The motor was installed directly into the customer's pumping system with minimal modification, allowing the production line to resume operation quickly.

Results

After several months of continuous operation, the customer reported significant improvements:

  • Stable performance under continuous heavy-duty operation.

  • Lower power consumption compared with the previous motor.

  • Reduced maintenance frequency and operating costs.

  • Low vibration and low noise during operation.

  • Reliable performance even in high-temperature industrial environments.

  • Improved production efficiency with minimal downtime.

The customer expressed satisfaction with the motor's performance, energy efficiency, and overall reliability, and has continued to specify WOLONG explosion-proof motors for future equipment upgrades.

The successful application of the WOLONG YBX3-280M-4 demonstrates the company's ability to provide safe, efficient, and dependable motor solutions for hazardous industrial environments. With advanced explosion-proof technology, premium energy efficiency, and robust construction, WOLONG continues to support customers worldwide in achieving safer operations and higher productivity.

WOLONG Electric Nanyang Explosion Protection Group Co., Ltd. remains committed to delivering world-class explosion-proof motor solutions for the oil & gas, petrochemical, mining, chemical, power generation, and manufacturing industries.

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