3-Phase Electric Motor 355kW 470Hp

3-Phase Electric Motor 355kW 470Hp is an ultra-high-power motor line, specially designed for heavy and continuous industrial drive systems. The product stands out not only for its high operational efficiency but is also favored for its stability, energy saving, and ability to adapt to harsh working environments. With the ability to combine with a Gearbox or high-power mechanical equipment, this is an ideal choice for factories, industrial zones, and large-scale production lines.

Overview Design of 3-Phase Electric Motor 355kW 470Hp

3-phase electric motor is a high-power motor line specially designed for heavy industrial production systems requiring high performance and stable durability, the product features a solid cast iron outer housing, with good impact and heat resistance, protecting internal components from impacts and harsh environmental conditions. At the rear of the electric motor body, a cooling fan is integrated along with cooling fins running along the machine body, ensuring a continuous operation process without worrying about overheating.

The motor shaft is machined from alloy steel or solid stainless steel, with high hardness and wear resistance, suitable for use in heavy industrial environments. In addition, the high-end bushing and bearing system equipped inside helps the motor operate smoothly, reduce vibration, and extend service life.

Internal Structure of the Electric Motor

3-Phase Electric Motor 355kW 470Hp has a complex technical design but is optimized for high performance and durability in heavy industrial environments. The internal structure mainly consists of the following components:

• Stator: This is the stationary part of the electric motor, containing copper windings arranged inside the magnetic steel core. When powered, the stator generates an alternating magnetic field to drive the rotor.
• Rotor: Located at the center of the motor, the rotor receives magnetic energy generated by the stator and converts it into mechanical motion on the motor shaft.
• Motor housing: High-rigidity external structure, helping to protect important components from impact, dust, and moisture. At the same time, the housing surface is designed to increase heat exchange capacity with the environment.
• Bearing: An intermediate component between the rotating shaft and the motor body, helping the rotor operate smoothly, precisely, and minimizing wear during long-term use.
• Cooling fan: A component supporting cooling by air convection method. When the rotor rotates, the fan continuously pushes air flow through the motor body to reduce the temperature generated during operation.

What Types of 3-Phase Electric Motor 355kW 470Hp Are There?

According to the rotation speed, the 3-Phase Electric Motor 355kW 470Hp line is divided into the following 4 types:

355kW 470Hp 3-Phase 2-Pole (2800 – 3000 rpm) Electric Motor

Extremely high rotation speed but low starting torque. Direct load holding force is not as strong as slow-speed lines.

Model	355L
Shaft diameter	75mm
Keyway	20
Flange diameter	800mm
Dimensions	1500mm * 730mm * 1010mm
Mounting type	Foot-mounted (B3), Flange-mounted (B35, B5, B14)
Protection class	IP55
Insulation class	Class F

Applications

• High-power industrial pump systems: Operating water supply pumps, fire protection pumps, irrigation pumps, circulation pumps in factories and water treatment plants.
• Large-capacity industrial fans: Driving dust extraction fans, boiler fans, ventilation fans, and gas treatment systems in cement, steel, and thermal power plants.
• Heavy-duty conveyors: Applied in mineral mining lines, cement production, seaports, building materials processing plants, and logistics.

355kW 470Hp 3-Phase 4-Pole (1400 – 1500 rpm) Electric Motor

3-Phase Electric Motor 355kW 470Hp is divided into different groups based on usage purposes and technical characteristics, to suit diverse needs in current industries.

Technical Specifications

Model	355L
Shaft diameter	95mm
Keyway	25
Flange diameter	800mm
Dimensions	1530mm * 730mm * 1010mm
Mounting type	Foot-mounted (B3), Flange-mounted (B35, B5, B14)
Protection class	IP55
Insulation class	Class F

Applications:

• Industrial air compressors: Providing power sources for high-capacity pneumatic systems serving continuous production in factories.
• Industrial crushers and mixers: Used in cement, mining, animal feed, and raw material processing industries with high load requirements.
• High-power gearbox systems: Combined with a gearbox to drive agitators, presses, steel rolling mills, hoisting machines, and heavy industrial mechanical equipment.

355kW 470Hp 3-Phase 6-Pole (900 – 1000 rpm) Electric Motor

Extremely strong traction (torque) right from startup. Able to withstand heavy loads and harsh working environments.

Technical Specifications

Model	355L
Shaft diameter	95mm
Keyway	25
Flange diameter	800mm
Dimensions	1530mm * 730mm * 1010mm
Mounting type	Foot-mounted (B3), Flange-mounted (B35, B5, B14)
Protection class	IP55
Insulation class	Class F

Applications:

• Oil and gas and energy industries: Operating pump, fan, compressor equipment, and drive systems in power plants and petrochemical refineries.
• Steel and cement manufacturing plants: Used for production lines requiring high capacity, 24/7 continuous operation, and high reliability.

355kW 470Hp 3-Phase 8-Pole (700 – 750 rpm) Electric Motor

The largest pulling force among the 4 types, but the rotation speed is very slow. It usually has a frame size much larger and heavier than other lines of the same 5Hp capacity.

Technical Specifications

Model	355L
Shaft diameter	95mm
Keyway	25
Flange diameter	800mm
Dimensions	1530mm * 730mm * 1010mm
Mounting type	Foot-mounted (B3), Flange-mounted (B35, B5, B14)
Protection class	IP55
Insulation class	Class F

Applications:

• Industrial crushers: Driving stone crushers, ore crushers, coal crushers, cement crushers, and heavy-load material processing equipment.
• High-capacity conveyors: Used in mineral mining, cement, seaports, and building materials manufacturing plants, where high traction and continuous operation are required.
• Industrial agitators and mixing tanks: Suitable for chemical agitation, wastewater treatment, food production, paint, and processing industries.

If you have not determined which load group your application belongs to, please call hotline 0909.539.175 immediately for technical consultation and selection of the most suitable solution.

What Gearboxes Can the 3-Phase Electric Motor 355kW 470Hp Be Combined With?

The 3-phase motor 355kW 470Hp can be combined with various gearboxes such as:

• Worm gearbox: WPS, WPX, WPO, WPA, WPDS, WPDX, WPD0, WPDA size 120 and NMRV 110, 130 gearboxes.
• Heavy-duty gearbox: R-Series Inline Helical Gearbox, S-Series Helical Worm Gearbox, F-Series Parallel Shaft Helical Gearbox.

In addition, it can also be combined with:

• Pulley and coupling: 75mm, 95mm shafts.
• Brake: 355kW 470Hp brake.

3-Phase Electric Motor Wiring Guide

Step 1: Open the motor terminal box

First, use appropriate tools to remove the bolts or screws securing the terminal box cover. After opening the cover, the motor terminal assembly will appear inside. Most 3-phase electric motors are arranged with 6 outgoing wire ends, clearly marked for convenient wiring.

Step 2: Identify the power terminal positions

Check the wiring diagram or markings printed inside the terminal box. Typically, the three terminals used to receive power are labeled U1, V1, and W1. These are the main connection points between the 3-phase power supply and the motor windings.

Step 3: Connect the 3-phase power supply to the motor

Prepare three phase wires from the 380V power supply and connect them respectively to terminals U1, V1, W1. After installing the cable lugs, tighten the nuts to ensure a secure connection, limit heat generation, and avoid arcing when the motor operates.

Technical Notes:

• Check the tightness of the connections carefully before powering on.
• Do not misconnect the power wires to the remaining winding terminals if it does not match the wiring diagram.
• Ensure the power supply is completely disconnected during operation.

Step 4: Complete installation and check rotation direction

After wiring, proceed to reinstall the terminal box cover and tighten the fixing screws. Power on the motor for a test run to check operation and shaft rotation direction.

If the rotation direction does not meet application requirements, disconnect the power supply and swap any two of the three power phase wires. When powered back on, the motor will rotate in the opposite direction.

Step 5: Monitor initial operation

During the first minutes of operation, noise, vibration, and temperature of the motor should be checked. If the motor operates smoothly, without burning smell or abnormal vibration, the wiring process has been carried out correctly and the equipment can be put into use.

Simple 3-phase electric motor wiring guide video. Performing correct technical wiring based on the electric motor video not only helps the motor operate stably but also contributes to extending equipment life and ensuring safety for users. Thanh Thai Motor always builds detailed and intuitive comprehensive guide videos to assist customers in easily installing and effectively utilizing electric motor lines in practice.

Warranty, shipping and commitment policy at Thanh Thai Motor

Warranty up to 24 months

All electric motor products distributed by Thanh Thai Motor are covered by a genuine warranty for up to 24 months. Customers who purchase electric motors can completely rest assured with a transparent, fast, and professional after-sales policy.

Nationwide Shipping

Thanh Thai Motor supports nationwide shipping for all electric motors sold, ensuring safe and on-time delivery to every province across the country. Whether you are in the North, Central, or South, we are ready to serve you.

European Standard Quality – German Technology

Thanh Thai Motor sells electric motors manufactured with German technology, meeting European quality standards, ensuring durability, high efficiency, and stable operation for a long period – suitable for the strict requirements of industrial electric motors.

Competitive Prices – Attractive Offers for Dealers and Wholesale Customers

We commit to reasonable motor prices, offering the best electric motor products with high discount policies for bulk purchasers and distribution units. The more you buy – the better the profit.

Quality Commitment – Powerful Operation, Power Saving

Thanh Thai Motor sells electric motors wound with 100% copper wire, helping the machine run powerfully, consume less electricity, operate smoothly, and effectively reduce vibration – extending equipment lifespan. When purchasing an electric motor, prioritizing products with 100% copper core will be a wise decision, bringing long-term value.

At Thanh Thai Motor, we provide a full range of products, with various phases and capacities, such as:

• 220V electric motors (or 220V 1-Phase electric motors) are 1-Phase electric motors commonly chosen for many household appliances and light industrial equipment, offering convenience and efficiency.
• 380V electric motors are 3-Phase electric motors using three-phase power, commonly used in heavy industrial applications.

Full CO, CQ Certification Documents

Thanh Thai Motor provides the best quality electric motors. Each imported electric motor product from Thanh Thai Motor comes with a Certificate of Origin (CO) and a Certificate of Quality (CQ), meeting the requirements for large projects, constructions, and strict technical documentation.

Contact for Purchase

Do you need to buy an electric motor or seek advice on choosing an affordable electric motor that suits your needs? Contact Thanh Thai Motor immediately using the methods below:

• WhatsApp: +84966596219
• Email: codienthanhthai@gmail.com