Z400-5 550kw DC Power Motor 660v

Brief Introduction

The Z4 series DC power motor is a high‑performance heavy‑duty direct‑current motor developed by Xi'an Simo Motor, specially engineered for industrial variable‑speed drive applications. Manufactured following JB/T 9577 national standard, this motor combines robust mechanical construction, superior speed regulation performance and outstanding overload resistance, widely deployed across metallurgy, mining, material handling and heavy‑duty processing industries for variable‑speed production lines.

The Z400‑5 serves as a typical high‑power model within this range. It features 550 kW rated power, 660 V armature voltage and 895 A armature current. Adopting separate excitation design, its excitation voltage is 220 V with 15 A excitation current. The adjustable speed covers 800‑1600 r/min, supporting broad‑range stepless speed variation. Whether operating under low‑speed high‑torque load or high‑speed constant‑power conditions, the motor maintains stable output, adapting to frequent load fluctuation and cyclic start‑stop working conditions on industrial sites.

For protection and thermal performance, the Z4 series is equipped with IP44 protection grade and W37A86 cooling system, with thermal insulation class TH.CL.180. It can operate continuously in ambient temperatures of 0‑40℃ and at altitudes up to 1000 meters. Drive‑end and non‑drive‑end adopt premium HRB bearings, which effectively reduce friction loss, suppress vibration and noise, and extend service life. The Z400‑5 weighs 4630 kg; its heavy‑duty cast frame is capable of enduring impact load and long‑time continuous operation in harsh workshop environments.

Maintainability is another highlight of the Z4 series DC power motor. The separate‑excitation structure simplifies control matching with DC drives, making parameter commissioning and daily maintenance straightforward for system integrators and end users. Every motor undergoes strict factory testing. With CE certification, it meets overseas project standards and supports export‑oriented industrial projects.

Matched with professional DC drive units, Z4 series motors deliver reliable power for rolling mills, large pumps, fans and heavy transport equipment. Distinct from small general‑purpose DC motors, this series prioritizes heavy‑load industrial scenarios, focusing on high‑overload capacity and long‑term operational stability. For global purchasers seeking proven heavy‑duty variable‑speed DC drive solutions, Simo Z4 series is a dependable and cost‑effective option for diverse heavy‑industry transmission projects.

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

Power Station

Pump

Sugar

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