3-Phase Electric Motor 55kW 75Hp

The 3-Phase Electric Motor 55kW 75Hp is a product in the high-capacity 3-phase electric motor segment above 3.7kW, ideal for machinery systems requiring powerful transmission and durable operation in industrial environments. With a sturdy design, stable operation capability, and high longevity, this electric motor is commonly applied in automated production line systems, industrial pumps, high-capacity fans, and pressing equipment, helping optimize working performance and minimize operating costs for businesses.

Overview design of the 3-Phase Electric Motor 55kW 75Hp

The 3-phase electric motor is designed with a solid structure, ensuring stable and durable operation in harsh industrial environments. The motor housing is made of cast iron or cast aluminum alloy, protecting internal components from mechanical impacts and corrosion. The motor is equipped with an efficient cooling fan system, helping maintain a stable working temperature and enhance product longevity.

With the motor shaft made of high-quality stainless steel, the 3-Phase Electric Motor 55kW 75Hp ensures good load-bearing capacity and long-term operation. Components such as bearings, end shields, and mounting bases are synchronously designed and easy to install, helping minimize maintenance costs and increase operating efficiency. At the same time, the motor operates smoothly and saves energy, suitable for applications requiring high power and high performance.

Internal structure

The internal structure of the 3-Phase Electric Motor 55kW 75Hp is extremely sturdy, consisting of the following parts:

• Stator: It is an assembly of very thin electrical steel sheets joined together into the frame, with slots inside or made of a cast steel block. The winding wire will run through the slots of the stator.
• Rotor: It is the rotating part of the electric motor, assembled by multiple metal bars to form a neat cylindrical cage shape. The motor rotor is a squirrel-cage rotor made of multiple parallel metal bars and windings.
• Mounting system: The electric motor typically features a mounting system to hold the stator and rotor firmly and allow power transmission from the rotor to other components.
• Cooling system: An electric motor may also include a cooling system to dissipate heat and ensure stable operation

 

What are the types of the 3-Phase Electric Motor 55kW 75Hp?

The 3-Phase Electric Motor 55kW 75Hp is manufactured with various pole numbers to meet diverse speed and torque requirements in industry.

3-Phase Electric Motor 55kW 75Hp 2 Pole (2,800 – 3,000 rpm)

This is a low-speed, high-traction motor line, commonly used when very high torque is needed without using an additional large gearbox.

Technical specifications

Code	250M
Shaft diameter	60mm
Key	18
Flange diameter	550mm
Weight	387kg
Dimensions	910mm * 490mm * 615mm
Installation type	Foot-mounted (B3), Flanged (B35, B5, B14)
Protection class	IP55
Insulation class	Class F

Applications

• High-capacity industrial water pumps: High rotation speed helps generate large water flow and pressure, suitable for water supply and drainage systems, booster pumps, and industrial pump stations.
• Centrifugal exhaust fans, industrial ventilation fans: Large rpm helps generate strong airflow, meeting the needs for ventilation, dust collection, and exhaust gas treatment in workshops.
• Crushers, cutters, and mechanical processing machines: High speed helps increase production productivity, ensuring cutting, grinding, and machining processes take place quickly and efficiently.

3-Phase Electric Motor 55kW 75Hp 4 Pole (1,400 – 1,500 rpm)

This is the most popular motor line thanks to its balance between rotation speed and torque, suitable for the majority of industrial equipment ranging from medium load to heavy load.

Technical specifications

Code	250M
Shaft diameter	65mm
Key	18
Flange diameter	550mm
Weight	392kg
Dimensions	910mm * 490mm * 615mm
Installation type	Foot-mounted (B3), Flanged (B35, B5, B14)
Protection class	IP55
Insulation class	Class F

Applications:

• Industrial conveyors, production conveyor belts: Moderate speed helps transport goods stably, continuously, and limits mechanical wear.
• Stone crushers, wood crushers, raw material crushers: Provides sufficient pulling force to operate equipment under high load for long periods.
• Concrete mixers, animal feed mixers, raw material mixers: Ensures stable torque to make the mixing process uniform and efficient.

3-Phase Electric Motor 55kW 75Hp 6 Pole (900 – 1,000 rpm)

This is a low-speed, high-torque motor line, suitable for heavy-duty industrial equipment requiring strong traction and stable operation.

Technical specifications

Code	280M
Shaft diameter	75mm
Key	20
Flange diameter	550mm
Weight	530kg
Dimensions	1045mm * 550mm * 680mm
Installation type	Foot-mounted (B3), Flanged (B35, B5, B14)
Protection class	IP55
Insulation class	Class F

Applications:

• High-capacity stone crushers, ore crushers, and wood crushers: Low speed combined with high torque helps handle heavy materials stably and efficiently.
• Concrete mixers, chemical agitators, industrial raw material mixers: Ensures strong pulling force to operate heavy-duty agitator blades.
• Heavy-duty conveyors in mining, cement, and construction materials industries: Maintain continuous transport capability with high stability.

3-Phase Electric Motor 55kW 75Hp 8 Pole (700 – 750 rpm)

This is a low-speed, extremely high-torque motor line, specialized for heavy-duty equipment requiring high traction and stable long-term operation.

Technical specifications

Code	315S
Shaft diameter	80mm
Key	22
Flange diameter	660mm
Dimensions	1270mm * 635mm * 845mm
Installation type	Foot-mounted (B3), Flanged (B35, B5, B14)
Protection class	IP55
Insulation class	Class F

Applications:

• Stone crushers, ore crushers, and construction material crushers: Provides large torque to handle high-load materials.
• Chemical agitators, concrete mixers, and large-capacity industrial mixers: Ensures strong pulling force and stable operation under heavy load conditions.
• Heavy-duty conveyors in mining, cement, and metallurgy industries: Maintain continuous transport capability with high stability.

Which gearboxes can the 3-Phase Electric Motor 55kW 75Hp be combined with?

The 3-Phase Electric Motor 55kW 75Hp can be coupled with various industrial gearbox lines to reduce rotation speed and increase torque for the drive system.

• Heavy duty gearbox: R-Series Inline Helical Gearbox, F-Series Parallel Shaft Helical Gearbox, K-Series Helical Bevel Gearbox, S-Series Helical Worm Gearbox

In addition, the motor can also be combined with:

• pulley and coupling: 65mm to 75mm.

Instructions for wiring a 3-phase electric motor

Proper technical wiring is an important step to help the 3-phase electric motor operate stably, ensure safety, and limit incidents during operation. Below is the basic wiring procedure that users can refer to before putting the motor into use.

Step 1: Accessing the terminal box

• Remove the fixing screws on the motor terminal box cover.
• Open the protective cover to observe the internal terminals.
• Check the condition of the terminal posts before making electrical connections.

Step 2: Identifying the power supply location

• Inside the terminal box, there are usually 6 terminals arranged in 2 rows.
• Identify terminals U1, V1, and W1 as the power supply reception positions.
• Compare with the manufacturer’s wiring diagram if necessary.

Step 3: Connecting the power supply

• Prepare a 3-phase power supply with the correct rated voltage.
• Connect the 3 phase wires successively to terminals U1, V1, and W1.
• Tighten the wire retaining nuts to avoid vibration or heat generation during operation.
• Avoid misconnecting to the remaining terminals to prevent affecting the motor windings.

Step 4: Operational check

• Reinstall the terminal box cover and fix it securely.
• Start the motor to check operating capability.
• Monitor the shaft rotation direction and initial operating status.
• If the rotation direction is not as required, swap the positions of any two phase wires and check again.

If you are looking for a high-capacity drive solution for pump, fan, conveyor, crusher systems or industrial production lines, the 3-Phase Electric Motor 55kW 75Hp is a worthwhile choice thanks to its stable operation, high efficiency, and superior durability. To view the product in reality, do not miss the electric motor videos produced by Thanh Thai Motor. In addition, the comprehensive video category also provides much useful content on the structure, technical specifications, wiring instructions, and practical applications of many other industrial motor lines.

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