ZTDY 3 Phase Motor For Sale 1480rpm S1

Brief Introduction

Manufactured by XI'AN SIMO MOTOR CO.,LTD, the ZTDY320-355 unit stands as a premium heavy-duty 3 phase motor for sale, tailored for large-scale continuous industrial production lines and harsh heavy-load working conditions. Compliant with national JB/T 5271 standards and certified with CE marking, this large three-phase asynchronous motor balances ultra-high energy efficiency, reinforced mechanical bearing structure and flexible dual-voltage compatibility, distinguishing itself from conventional medium-power motors and becoming a reliable core drive for mining, metallurgy, cement and large ventilation industries.

This 320kW 3 phase motor for sale operates steadily on 50Hz power grid with a rated rotational speed of 1480 r/min, reaching an outstanding energy efficiency of 94.3% alongside a power factor of 0.90. Its internally optimized electromagnetic core adopts high-grade low-loss silicon steel sheets and high copper filling windings, effectively cutting no-load and variable-load power consumption during long-hour S1 continuous duty cycles. Equipped with dual stator voltage options of 380V and 660V, matched with delta/star switchable wiring, the motor can seamlessly connect to most industrial power distribution systems without extra transformer modification, greatly simplifying on-site electrical commissioning for global purchasers. The rated stator current stands at 573A under 380V power supply and 330A under 660V, maintaining stable torque output without performance attenuation under full-load operation.

In terms of mechanical design and environmental adaptability, the motor adopts classic IM B3 horizontal foot mounting structure paired with IC01 natural air cooling system, which eliminates reliance on auxiliary cooling fans and lowers long-term maintenance risks. It is equipped with Class 155 heat-resistant insulation material to resist winding aging caused by sustained heavy-load temperature rise, while the IP23 ingress protection grade blocks large dust particles and solid debris from invading internal components, suitable for clean indoor heavy industrial workshops. The applicable ambient temperature ranges from -15℃ to 40℃, and it can work normally at altitudes up to 1000 meters, meeting the deployment demands of most plain industrial parks.

To tackle frequent impact loads generated by large compressors, industrial blowers and mineral conveying equipment, the drive end of this 3 phase motor for sale is fitted with NU322 cylindrical roller bearing, matched with 6322/C3 deep groove ball bearing on the non-drive end. This mixed bearing configuration bears far stronger radial and axial impact loads than ordinary double ball bearing designs, significantly extending overhaul intervals and reducing spare part replacement costs for factories. The whole machine weighs 1655kg with an integrated thick cast iron base embedded with vibration-damping ribs, which effectively suppresses operating vibration and running noise to create a stable production environment.

Every ZTDY320-355 motor undergoes strict full-process performance testing before delivery, covering winding insulation resistance, temperature rise, vibration amplitude and full-load torque verification. Produced in December 2025, each motor carries an exclusive traceable production serial number to support complete lifecycle quality tracking and timely global after-sales technical support.

Versatile in industrial matching, this heavy-duty 3 phase motor for sale serves as the preferred driving device for large centrifugal fans, air compressors, raw material belt conveyors and metallurgical auxiliary transmission equipment. Whether for new heavy-duty production line construction or energy-saving renovation of outdated low-efficiency motors, it integrates remarkable energy-saving advantages, robust mechanical durability and low daily maintenance costs, offering a cost-effective high-power drive solution for industrial buyers worldwide.

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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