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If you are looking for a three-phase asynchronous (AC) electric motor, the smartest starting point is to work with a real manufacturer. As HEM Motor, we build squirrel-cage asynchronous motors on our own production line and offer a wide range from 0.18 kW up to 355 kW, available from stock and with a fast quotation. This page is designed to explain asynchronous AC electric motor prices and the sales process transparently, and to help you choose the right power, speed and efficiency class at the best price-performance. You get both the price advantage of buying direct and the depth of a large stock.
The squirrel-cage three-phase asynchronous motor is the most common drive solution in industry: durable, easy to maintain and reasonably priced. You will find it in thousands of applications, from pumps and fans to conveyors and compressors. When you work with us, you receive not just a product but also correct selection guidance, stock assurance and fast shipping. Below you will find both the technical criteria and the factors that shape the price.
What Is an Asynchronous AC Electric Motor and Why Is It So Widespread?
An asynchronous motor works on the principle of a rotating magnetic field dragging the rotor; it has no brushes and no slip rings. Thanks to its squirrel-cage rotor, it has almost no mechanical wear point, which means long life and low maintenance. It can be started directly on a three-phase grid (380-400 V) and also runs smoothly with a soft starter or a frequency inverter.
The reason these motors sell in such high volumes is their price-performance balance. Compared with other motor types of the same power, they are more economical, more robust and more accessible in terms of spare parts. In the HEM Motor range you can find these motors in IE3 and IE4 efficiency classes, with 2-4-6-8 pole options.
Power and Speed Range: From 0.18 kW to 355 kW
A wide power range lets you source both small auxiliary drives and main process motors from a single supplier. Speed is set by the number of poles:
- 2 poles (around 3000 rpm): Pumps, fans, compressors and other high-speed applications.
- 4 poles (around 1500 rpm): The most common general-purpose speed; conveyors, mixers, machine drives.
- 6 poles (around 1000 rpm): Heavy-duty applications needing high torque and lower speed.
- 8 poles (around 750 rpm): Special drives requiring very low speed and high starting torque.
IE3 and IE4 Efficiency Class: Weigh Price and Running Cost Together
The efficiency class affects both the purchase price and the electricity bill over the years. IE3 (Premium) motors are today the legal minimum in many power ratings and offer a balanced price-performance. IE4 (Super Premium) motors run with lower losses in continuously operating plants; although the initial investment is slightly higher, they pay for themselves over long running hours.
The right choice depends on how many hours a day and at what load the motor runs. For continuous processes our IE4 high-efficiency electric motors stand out, while for intermittent applications IE3 efficient asynchronous electric motors are the most sensible choice. We evaluate together which class suits you and prepare a clear quotation.
| Criterion | IE3 Premium | IE4 Super Premium |
|---|---|---|
| Initial investment tendency | More economical | Slightly higher |
| Energy loss | Low | Even lower |
| Payback at long running hours | Good | Very good |
| Recommended use | Intermittent / medium duration | Continuous / long-duration process |
Factors That Determine the Price of an Asynchronous AC Motor
Instead of a single list price, we prefer to offer a price-performance balance tailored to your need. The main factors that shape the price are:
- Power (kW) and frame size: Material and casting volume grow with increasing power.
- Efficiency class (IE3/IE4): Higher efficiency means more copper and higher-grade laminations.
- Number of poles and speed: Low-speed, high-torque motors are bulkier.
- Mounting type (B3 foot, B5/B14 flange, B35 combined): The connection shape affects production detail.
- Frame material: Aluminium or cast iron body electric motors of your choice.
- IP protection and special options: Add-ons such as thermistors, anti-condensation heaters or special shafts.
- Quantity and stock status: More favourable terms are offered on project-based bulk purchases.
We clarify all these variables with a single e-mail or request form and reply with a fast quotation. For general price trends and current campaigns you can review our price lists and catalogs section.
The Manufacturer Advantage: Why Buy Direct from HEM Motor?
Buying a motor directly from its maker rather than through a chain of intermediaries simplifies both the price and the process. The concrete benefits of working with HEM Motor:
- Direct price: Net electric motor prices with no intermediary margin.
- Stock depth: The most requested powers and speeds ship fast from stock.
- Technical guidance: Support with nameplate reading, equivalent selection and load analysis.
- Wide range: Single-source supply from 0.18 to 355 kW.
- Fast quotation and shipping: Delivery planned to fit your project schedule.
To see the whole range and current campaigns, visit the HEM Motor electric motor prices homepage. For technical details of the technology, our Asynchronous / AC motors blog category is a thorough resource.
A Checklist for Choosing the Right Asynchronous Motor
Keeping the information at hand speeds up the quotation process:
| Information | Why It Matters |
|---|---|
| Power (kW or HP) | Core data for correct frame and range selection. |
| Speed / number of poles | Defines the speed requirement of the application. |
| Mounting type (B3/B5/B14/B35) | Mandatory for mechanical fit to the machine. |
| Efficiency class (IE3/IE4) | Critical for regulation and running cost. |
| Environment and IP protection | Correct protection choice in dusty/wet environments. |
If you are replacing an existing motor, simply sharing the values on the old nameplate is enough for equivalent selection. For general-purpose industrial needs, you can review our general-purpose industrial motors and our AC electric motors range directly.
Frequently Asked Questions
What does the price of an asynchronous AC motor depend on?
Price is shaped by power (kW), efficiency class (IE3/IE4), number of poles, mounting type, frame material and IP protection. Quantity and stock status also affect price-performance. When you share your need, we prepare a fast quotation tailored to you.
Are small powers such as 0.18 kW also in stock?
Yes. Our range spans 0.18 kW to 355 kW. The most requested small and medium powers usually ship from stock; for larger powers the delivery schedule is clarified and planned.
Should I buy IE3 or IE4?
If the motor runs long hours at a steady load, IE4 super premium runs with lower losses and pays back quickly. For intermittent or medium-duration operation, IE3 premium offers a balanced price-performance.
Can you find an equivalent for my existing motor?
Of course. Simply share the power, speed, mounting type and frame dimensions on the old nameplate; we identify a suitable equivalent and quote it.
How quickly do the quotation and shipping arrive?
For stock items the quotation is returned very quickly and shipping is planned in a short time. For special or high-power motors, we clarify the delivery time according to your project schedule.
Get a Quote Now
To source the right asynchronous AC electric motor at the best price-performance, send us your requirement. Share the power, speed and mounting details; we will pick the most suitable solution from our wide stock range and reply with a fast quotation. With manufacturer assurance, direct pricing and fast shipping, we are by your side.