Z4-355-22 Direct Current 350kw Motor 440V

AIMIN ELECTRICS CO., LTD. is one of the leading manufacturers and suppliers of z4-355-22 direct current 350kw motor 440v 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

Engineered by Xi'an AIMIN Motor Co., Ltd., the Z4 Series DC Motor represents a pinnacle of industrial DC drive technology, meticulously designed to meet the most demanding requirements of heavy-duty manufacturing processes worldwide. The specific model Z4-355-22 350kw motor, with a rated power of 350 kW, stands as a benchmark in the series, embodying exceptional performance, robust construction, and operational versatility tailored for applications where precise speed control, high torque, and unwavering reliability are non-negotiable.

At its core, this motor is built to thrive in the harshest industrial environments. It operates at a rated voltage of 440 V with a current of 862 A, delivering consistent power under continuous (S1) duty cycles. The speed range of 700–1600 r/min, featuring constant torque at lower speeds and constant power at higher speeds via field weakening control, provides an exceptionally wide and smooth speed regulation range, a critical advantage for processes requiring variable speeds such as rolling mills, paper machinery, and plastic extrusion lines. The motor employs separate excitation (SEP.220) with an excitation current of 20 A, optimized for compatibility with static rectifier power supplies, ensuring stable and efficient performance even with pulsating current inputs.

Constructed with an octagonal, fully laminated stator frame, the Z4-355-22 350kw motor maximizes space utilization while offering superior resistance to mechanical stress and rapid load fluctuations, a feature inherited from the Z4 Series' design philosophy to outperform older generations like Z2 and Z3. Class F insulation (thermal class 155) guarantees long-term thermal stability, while the IC06 cooling system and IP23 protection rating ensure reliable operation in ambient temperatures from 0 to 40°C at altitudes up to 1000 m. This combination makes the motor resistant to dust, moisture, and overheating, significantly extending its service life and reducing maintenance costs.

Durability is further enhanced by premium bearing configurations: the drive end (D.E.) uses a 6324/C3 bearing and the non-drive end (N.D.E.) uses a 6224/C3 bearing, both engineered for high radial loads and continuous operation. The motor's IM B3 mounting configuration allows for flexible installation in a variety of industrial setups, while its robust mechanical structure, weighing 3000 kg, is built to withstand the rigors of heavy industrial use. Every unit is manufactured to the stringent JB/T6316 standard and certified with the CE mark, reflecting compliance with international safety and quality benchmarks.

Beyond technical specifications, the Z4-355-22 excels in dynamic performance. Its low moment of inertia enables quick response to speed and torque commands, making it ideal for processes requiring precise motion control, such as metal cutting machine tools and textile machinery. The motor's high overload capacity allows it to handle frequent impulse loads without compromising performance, a key feature for metallurgical rolling mill auxiliary drives and mining equipment.

In terms of operational efficiency, the Z4 Series is optimized for energy savings, with high conversion rates that reduce operational costs over the motor's lifecycle. The use of high-quality magnetic materials and optimized winding designs minimizes energy losses, while advanced brush and commutator technologies reduce wear, ensuring consistent performance with minimal maintenance.

As a product of Xi'an AIMIN Motor Co., Ltd., a leading Chinese manufacturer with decades of expertise in motor technology, the Z4-355-22 benefits from rigorous quality control processes and continuous innovation. The company's commitment to excellence is reflected in every aspect of the motor, from its precision-engineered components to its reliable after-sales support.

In summary, the AIMIN Z4-355-22 DC 350kw motor is more than just a power source-it is a comprehensive solution for industrial applications demanding high performance, reliability, and adaptability. Whether deployed in metallurgy, paper production, plastics processing, or general heavy industry, this motor delivers the power, precision, and durability needed to keep operations running smoothly and efficiently.

Main Technical Parameters

Production Details

Frame

• Compact and robust iron casting frame

• Universal IEC  installation dimensions available

• Customizable outlook and dimensions

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Armature

• 99.9% pure copper bar for armature to ensure the output power and efficiency

• Excellent insulation system with 5 more processing flows

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

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Winding

• All windings are made of pure copper to assure induction efficiency

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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

Oil gas

Steel

Sugar

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