3-Phase Electric Motor 90kW 125Hp

The 3-Phase Electric Motor 90kW 125Hp is a powerful device, designed to deliver high torque and stable operation in high-power industrial applications. With its durable operating capability, this motor is commonly used in production lines, conveyor systems, and heavy industrial machinery. The high torque of the motor helps improve efficiency and enhances strong transmission capacity during production. Let’s join Thanh Thai Motor to explore the details of this product below!

General design of the 3-phase electric motor 90kW 125Hp

The 3-phase electric motor has a sturdy design, with the motor housing made of aluminum alloy or cast iron, providing high durability and effective corrosion resistance in harsh industrial environments. The motor is equipped with a fan or water cooling system to maintain a stable temperature, protect parts from overheating, and increase lifespan and efficiency. With the motor shaft made of high-quality stainless steel material, the 3-phase electric motor 90kW 125Hp ensures good load-bearing capacity and long-term operation.

Internal structure of the 3-phase electric motor

The 3-phase electric motor belongs to the 3-phase segment above 3.7kW with an internal structure consisting of the following two main parts:

• Stator core: The stationary part of the motor, constructed from laminated electrical steel sheets combined with a winding system. When current passes through, the stator generates a magnetic field to stimulate the rotor to move.
• Rotating rotor: Located inside the stator and directly connected to the motor shaft. Under the influence of the magnetic field generated by the stator, the rotor rotates continuously and produces mechanical power for drive equipment.
• Motor housing: Functions to protect internal parts from dust, moisture, and mechanical impacts from the working environment. At the same time, cooling fins on the housing body help improve heat dissipation efficiency.
• Bearings: Installed at both ends of the shaft to support rotational movement, reduce friction, and keep the rotor running in balance, limiting vibration during operation.
• Cooling fan: The active cooling component of the motor. When the shaft rotates, the fan creates an airflow circulating through the motor body, helping to reduce temperature and maintain stable working capacity over a long period.

How many types of 3-phase electric motors 90kW 125Hp are there?

According to the rotational speed, the 3-phase electric motor 90kW 125Hp line is divided into the following 4 types:

3-phase 2-pole electric motor 90kW 125Hp (2,800-3,000 rpm)

The high rotational speed helps the motor achieve high rpm, however, the starting torque is relatively low, so the ability to pull heavy loads right from the start is not truly prominent.

Technical specifications

Code	280M
Shaft diameter	65mm
Key	18
Flange diameter	550mm
Dimensions	1035 * 550mm * 680mm
Mounting type	Foot mount (B3), Flange mount (B35, B5, B14)
Protection class	IP55
Insulation class	Class F

Applications

• Heavy-duty industrial pump systems: Applied in water supply stations, circulation pump systems, wastewater treatment pumps, and production lines requiring large fluid flow and continuous operation.
• Large-capacity industrial fan equipment: Suitable for operating dust collection fans, air supply fans, cooling fans, and gas treatment systems in manufacturing plants, industrial zones, and fabrication workshops.
• Material handling conveyor systems: Used in mining, building materials production, agricultural processing, and logistics industries, helping to transport large quantities of goods efficiently.

3-phase 4-pole electric motor 90kW 125Hp (1,400 – 1,500 rpm)

The motor operates with high rpm, but the starting torque is not large, therefore the direct load-bearing capacity is lower than slow-speed motor lines.

Technical specifications

Code	280M
Shaft diameter	75mm
Key	20
Flange diameter	550mm
Dimensions	1035 * 550mm * 680mm
Mounting type	Foot mount (B3), Flange mount (B35, B5, B14)
Protection class	IP55
Insulation class	Class F

Applications

• Crushers and material processing equipment: Installed for stone crushers, ore grinders, industrial mixers, and material processing lines requiring high power.
• Lifting and material handling equipment: Applied in overhead cranes, winches, elevators, and mechanical systems in factories, warehouses, and seaports, where stable and continuous working capability is required.

3-phase 6-pole electric motor 90kW 125Hp (900 – 1,000 rpm)

Extremely strong pulling force (torque) right from start. Able to withstand heavy loads and harsh working environments.

Technical specifications

Code	315M
Shaft diameter	80mm
Key	22
Flange diameter	660mm
Dimensions	1300 * 635mm * 845mm
Mounting type	Foot mount (B3), Flange mount (B35, B5, B14)
Protection class	IP55
Insulation class	Class F

Applications

• Mining and building materials industry: Used for conveyor systems, stone crushers, vibrating screens, and drive equipment in heavy, dusty, and high-load working environments.
• Chemical and fertilizer production industry: Suitable for mixing lines, chemical pumps, compressors, and continuous production systems, requiring high stability and good corrosion resistance.
• Paper production and wood processing industry: Applied in cutting, grinding, pressing, and material transportation stages on conveyors, meeting the continuous operation needs in factories.

3-phase 8-pole electric motor 90kW 125Hp (700 – 750 rpm)

The highest pulling force among the 4 types but very slow rotational speed. Usually has a much larger and heavier frame size compared to other lines of the same power.

Technical specifications

Code	315L
Shaft diameter	80mm
Key	22
Flange diameter	660mm
Dimensions	1300 * 635mm * 845mm
Mounting type	Foot mount (B3), Flange mount (B35, B5, B14)
Protection class	IP55
Insulation class	Class F

Applications

• Paper production and wood processing industry: Applied in cutting, grinding, pressing, and material transportation stages on conveyors, meeting the continuous operation needs in factories.
• Metallurgy and heavy mechanical industry: Used for rolling mills, presses, metal processing machines, and industrial drive systems requiring high torque and high durability.
• General industrial processing and manufacturing industry: Supports the operation of various equipment in automated production lines, ensuring stable performance and long-term working capability.

What types of gearboxes can the 3-phase electric motor 90kW 125Hp be combined with?

The 3-phase electric motor 90kW 125Hp is a high-power line, which can be combined with various types of gearboxes depending on the load requirements and practical applications, specifically:

Worm gearbox: Large sizes of WPA, WPX, WPO, WPS, WPDS, WPDX, WPD0, WPDA series can be used, along with some NMRV 110 or 130 series depending on the design and transmission ratio.

Heavy-duty industrial gearbox: Including R-Series Inline Helical Gearbox, F-Series Parallel Shaft Helical Gearbox, and S-Series Helical Worm Gearbox, suitable for continuous operation systems and high loads.

Associated equipment that can be combined

• Drive pulley: Used for indirect power transmission systems, depending on shaft sizes such as 65mm, 75mm.
• Shaft coupling: Helps connect the motor and the gearbox, ensuring stable torque transmission and reducing vibration.
• Electromagnetic brake: Suitable for the 90kW 125Hp motor in applications requiring rapid braking or safe load holding.

Wiring guide for 3-phase electric motor

Step 1: Open the motor terminal box cover

Use a screwdriver or suitable tool to remove the fixing screws on the motor terminal box cover. After opening, you will see the internal terminal wiring assembly. Typically, a 3-phase electric motor will have 6 output wire ends clearly labeled for installation convenience.

Step 2: Identify terminal markings

Observe the wiring diagram pasted on the motor body or right inside the terminal cover. The wire ends are usually labeled U1, V1, W1 and U2, V2, W2, helping users easily determine the correct connection position according to technical standards.

Step 3: Proceed with power supply connection

Bring 3 phase wires from the 3-phase power source into the corresponding terminals according to the diagram. After attaching wire lugs, tighten the connection points to ensure good contact, avoid heat generation, and ensure safety during operation.

Safety notes when wiring

• Carefully check all connections before supplying power.
• Do not miswire wire positions if the technical diagram has not been correctly identified.
• Completely disconnect the power source during operation to avoid danger.

A simple guide video on wiring the 3-phase electric motor helps customers better understand correct technical wiring to keep the motor running stably, limit incidents, and increase equipment durability. Through practical tutorial videos from Thanh Thai Motor, users can easily grasp the installation and operation process of the electric motor safely and effectively.

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