YJTFKK450-4 Three-phase Asynchronous IP66 Motor 630kw IC611

AIMIN ELECTRICS CO., LTD. is one of the leading manufacturers and suppliers of YJTFKK450-4 Three-phase Asynchronous IP66 Motor 630kw IC611 in China. With abundant experience, we are committed to providing high quality customized products with competitive price. We warmly welcome you to buy bulk premium products made in China here and get quotation from our factory.

Brief Introduction

An ip66 motor is essential when severe industrial environments demand maximum protection against dust ingress and high-pressure water jets without sacrificing high-power performance. The AIMIN YJTFKK450-4 Variable Frequency Three-Phase Asynchronous Motor, manufactured by Xi'an AIMIN ELECTRICS Co., Ltd., represents the pinnacle of heavy-duty engineering designed for high-efficiency continuous operations (S1 duty cycle). Delivering a continuous power output of 630 kW at 690 V with a rated current of 653.5 A (Y-connection) and a baseline speed of 1486 r/min at 50 Hz, this motor provides a high nominal torque of 4011Nm for heavy industrial machinery such as high-pressure pumps, compressors, crushers, blowers, and large conveyors. The unit maintains outstanding electrical stability with an efficiency rating of 93.8% and a power factor of 0.86. Driven by variable voltage variable frequency (VVVF) control spanning a broad frequency range of 30 Hz to 70 Hz, it enables smooth, energy-efficient speed control under dynamic loading conditions. Thermal resilience is ensured by a Class 180 (Class H) insulation system alongside an IC 611 closed-circuit air-to-air cooling arrangement, ensuring sustained thermal protection under full loads. Structurally, this foot-mounted (IM B3) heavy machine weighs approximately 4,230kg and integrates premium SKF NU228ECM roller bearings at the drive end (D.E.) and 6228/C3 bearings at the non-drive end (N.D.E.) to minimize vibration and extend maintenance cycles. Designed to operate seamlessly at altitudes up to 1,000 meters and ambient temperatures ranging from -15℃ to 40℃ the machine also incorporates critical operational safeguards: when using reduced voltage start with heavy loads, users must manage starting torque and startup duration to prevent winding overheating; auxiliary air-water cooling or external circle grease supplies must be running prior to startup where applicable; precise axial alignment with driven equipment via flexible coupling is required; and operating windings with earthing is strictly forbidden. Ultimate reliability, robust power delivery, and complete sealing against harsh working environments make investing in a certified ip66 motor like the AIMIN YJTFKK450-4 the ideal solution for modern, demanding industrial drive systems.

Main Technical Parameters

Production Details

Frame

• Box structure frame, easy for maintaining and installation

• Flexible for special installation dimensions

• Customizable outlook and dimensions

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Stator

• 99.9% pure copper winding for stator to ensure the output power and efficiency

• Excellent insulation system with 5 more processing flows

• All the windings are fitted in by handwork to ensure all slots are full and avoid any possible winding flaw.

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Rotor

• Aluminum casting rotor with high quality silicon steel rotor core to assure induction efficiency

• Copper bar rotor is available for YJTFKK motor

• Well and precisely machined shafts with good capacity of strength and toughness

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Testing

• All motors must pass the piece testing before painting and packaging

• Type tests will be regularly performed for each series, more often for new developed series and variants.

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Package and delivery

• All motors will be packaged well before delivery

• Plastic cover inside, vacuum tin foil outer and then solid wood box

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Applications

Cement

Power Station

Water

Mining

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