Product Description
YBX3, YBX4 and YBX5 series low-voltage explosion-proof three-phase asynchronous motors are ultra-high efficiency IE5 Exd motors. Their non-explosion counterpart is the YE5 series. This product line complies with global standards including GB755, IEC60034 for rotating electrical machines, as well as GB3836 and IEC60079 for explosion-proof equipment. Power ratings and mounting dimensions fully align with IEC specifications and match Germany DIN42673 standard. Its energy efficiency reaches Grade 1 per GB18613-2020 national standard. Designed and manufactured with mature innovative technologies, premium raw materials and optimized production processes, the motors deliver stable and reliable performance.

Product Features

This motor series features exquisite craftsmanship, superior overall performance and stable, reliable operation, reaching an internationally advanced technical level.

Application Industries

Widely applied in petroleum, metallurgy, mining, coal mining and general machinery industries.

Operating Conditions

Designed for hazardous areas with explosive gas mixtures in petrochemical, petroleum, mining, chemical, metallurgical and power industries. It is commonly used to drive general industrial equipment including fans, water pumps, compressors, feed pumps, crushers, winches, centrifuges, cutting machines and conveying machinery.

Raw Materials

• Frame: High-strength cast iron / steel
• Stator: Pure copper winding
• Rotor: Copper or aluminum
• Motor Shaft: ASTM1045 carbon steel
• Bearings: SKF brand or equivalent high-quality domestic brands

Raw Materials

• Frame: Cast iron / steel plate
• Stator: Pure copper winding
• Rotor: Copper or aluminum material
• Motor Shaft: ASTM1045 carbon steel
• Bearings: SKF or equivalent premium domestic brands

Frame

Winding


In-process Inspection & Quality Control

All testing and measuring instruments are fully calibrated annually to ensure accurate and consistent inspection results. Every production procedure undergoes strict item-by-item quality inspection and control.

Factory Test Items

Factory Test Items

All motors undergo strict factory testing prior to shipment. Only products passing all test criteria are qualified for delivery, and a complete independent test report will be provided for each motor.

Routine Tests

1. Three-phase DC resistance of windings
2. Winding insulation resistance to earth
3. Winding voltage withstand test
4. No-load current test
5. No-load power test
6. No-load power loss test
7. Three-phase no-load current unbalance test
8. Locked-rotor current test
9. Locked-rotor torque test
10. Maximum torque test
11. Rotation direction verification
12. Vibration test (horizontal, vertical, axial)
13. Noise test

Type Tests

1. Full-load input power
2. Full-load operating current
3. Stator winding power loss
4. Rotor winding power loss
5. Core iron loss
6. Mechanical power loss
7. Stray power loss
8. Full-load slip ratio
9. Stator winding temperature rise
10. Bearing operating temperature
11. Winding insulation resistance after heating
12. Overload performance test
13. Full-load power factor
14. Operational efficiency

Paintings
Standard painting thickness: 120microns (40 micron priming paint + 80micron finish paint)
With professional certified painters, we can mix and paint any color according to your requirements.

Packaging & Warranty

Packaging

All motors are packed with standard export seaworthy packaging, adopting plywood boxes or fumigated wooden cases. The packaging is specially reinforced to adapt to long-distance ocean transportation, ensuring safe and damage-free delivery.

Warranty Period

We provide a standard warranty of 12 months after equipment commissioning or 18 months after delivery, whichever occurs first. Extended warranty services are available upon customer request. Please contact our sales team for detailed terms.