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90 Series Servo Motor

The AC servo motor from the 90 series is capable of maintaining stability regardless of whether it operates at high or low speeds, which makes it well-suited for use in precision equipment sets across various industries, including food, elevators, chemicals, and woodworking.

90 Series Servo Motor

Servo Motor The 90 series servo motor is a type of high-performance electric motor used for precise motion control in a wide range of industrial applications. These motors are designed to provide smooth, accurate and rapid movement, which makes them ideal for use in robotics, CNC machines, printing presses, packaging equipment, and other automated systems.

Model Name Explanation

Servo Motor Name Explanation

Frame Size 60、80、90、110、130、150、180
Feedback Component Mark M-Photoelectric Encoder
X -Resolver
Performance Parameter Mark First three are Rated Torque
Last two are Rated Speed
e.g., Performance Parameter Mark 00630 indicates the rated torque is 0.6N.m, rated speed is 3000rpm
Derived Mark Z1-Electromagnetic brake
Z2-Permanent magnet brake


90 Series Servo Motor Features

Some key features of the 90 Series servo motor include high torque density, low inertia, and a compact design, which makes them well-suited for applications where space is limited. They are also known for their high dynamic response and fast settling times, which helps to minimize system settling time and improve overall performance.

Additionally, 90 Series servo motors often come equipped with advanced control features such as feedback devices (such as encoders) and integrated electronics, which enable precise control over motor speed and position.

The 90 Series servo motor is a reliable and high-performance motor that is widely used in many industrial applications where precise and rapid motion control is required.

Permanant Magnet Servo Motor

90 Series Servo Motor Technical Parameter

Motor model 90ST-M02430 90ST-M03520 90ST-M04025
Rated Power w 0.75 0.73 1.0
Rated voltage V 220 220 220
Rated current A 3 3 4
Rated speed rpm 3000 2000 2500
Holding torque N.m 2,4 3.5 4
Peak torque N.m 7.1 10.5 12
Rotor inertia Kg.㎡ 2.45×10-4 3.4×10-4 3.7×10-4
Weight kg 3.4 3.8 4.31
Encoder line number PPR 2500
Insulation class Class F
Safety class IP65
The Operating of Environmental Conditions Temperature:-20℃~+40℃
Humidity: relative humidity<90% (frost free condition)


Installation Dimension of 90 Series Servo Motor

90 Series Servo Motor appearance and installation dimensions

Servo Motor Appearance and Installation Dimensions

Base  No.
A B C D E F G H I J T M P S L* L1* L2*
90ST-M02430 3 25 2 ø16 35 5 18 93 8 M5 3 ø100 86 ø6.5 155 203 212
90ST-M03520 3 25 2 ø16 35 5 18 93 8 M5 3 ø100 86 ø6.5 177 225 234
90ST-M04025 3 25 2 ø16 35 5 18 93 8 M5 3 ø100 86 ø6.5 187 235 244


Permanent Magnet Servo Motor Working Principle

The operation of a permanent magnet servo motor is based on the interaction of two magnetic fields, one fixed and one rotating. The fixed magnet is known as the stator, while the rotating magnet is referred to as the rotor. When the coils of wire within the stator are energized with an electric current, they create a magnetic field that interacts with the permanent magnet of the rotor. This interaction between the two magnetic fields causes the rotor to rotate. To precisely control the motor's speed and position, the strength and direction of the magnetic field generated by the stator can be adjusted by using sensors to monitor the motor's speed and position and adjusting the current supplied to the stator coils accordingly.

In summary, a permanent magnet servo motor works by using the interaction between the magnetic fields of a fixed stator and a rotating permanent magnet rotor to produce precise rotational motion, which can be controlled by adjusting the current supplied to the stator coils.

Servo Motor Working Principle

China Servo Motor Supplier -WLY Transmission

Looking for a reliable servo motor supplier for your manufacturing needs? Look no further than our company! With years of experience in the industry, we are dedicated to providing high-quality servo motors that meet your precise specifications and requirements. Our servo motors are designed with precision, accuracy, and durability in mind, ensuring that your manufacturing processes run smoothly and efficiently. WLY is a leading 90 series AC servo motor manufacturer and supplier specializing in the design and manufacture of industrial electric motors, speed reducers, and gearboxes. With a manufacturing process in accordance with IEC standards, our company is committed to providing quality AC electric motors with a variety of model selections and configurations to meet specific needs for your equipment and machines.

We offer a wide range of servo motors that are suitable for a variety of applications, from industrial automation to robotics and beyond. Our team of experts is committed to providing exceptional customer service and support, ensuring that you receive the products and services you need to succeed.

With our extensive knowledge and experience in the industry, we are confident that we can provide you with the high-quality servo motors you need to take your manufacturing processes to the next level. Contact us today to learn more about our products and services and how we can help you achieve your manufacturing goals.



Additional information



pruduct quality report

Materials Available

1. Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS420
2. Steel:C45(K1045), C46(K1046),C20
3. Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40)
4. Bronze: C51000, C52100, C54400, etc
5. Iron: 1213, 12L14,1215
6. Aluminum: Al6061, Al6063
7.OEM according to your request
product materials available

Surface Treatment

Annealing, natural canonization, heat treatment, polishing, nickel plating, chrome plating, zinc plating,yellow passivization, gold passivization, satin, Black surface painted etc.

Processing Method

CNC machining, punch,turning, milling, drilling, grinding, broaching, welding and assembly
product finishing

QC & Certificate

Technicians self-check in production,final-check before package by professional Quality inspector
ISO9001:2008 , ISO14001:2001,ISO/TS 16949:2009

Eight reasons to choose us:


1. Perfect service system and after-sale protection.
2. Quality problems will be solved within 24hours.
3. One-to-one customer service tracking processing.
4. Companies carry out the ERP management, improve enterprise fast response.
5. Quality assurance, one year warranty.
6. Supporting professional matched other equipments.
7. The company has more than one product testing units, the implementation of ISO9001: 2015.
8. Unique development and design capabilities to meet the needs of special-purpose equipment manufacturing.


Five Core strengths:


1. The first domestic independent R & D manufacturer and 22 years of professional manufacturing.
2. Casting exquisite, beautiful, practical and durable.
3. Complete specifications, cost-effective and spot supply.
4. Independent research and development, special specifications can be customized.
5. Selected materials, high-tech treatment, up to the international standard test.

Package & Lead Time

Size: Drawings
Wooden Case/Container and pallet, or as per customized specifications.
15-25days samples. 30-45days offcial order
Port: Shanghai/Ningbo port


Q: Are you trading company or manufacturer ?
A: Our group consists in 3 factories and 2 abroad sales corporations.

Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.

Q: How long is your delivery time ? What is your terms of payment ?
A: Generally it is 40-45 days. The time may vary depending on the product and the level of customization. For standard products, the payment is: 30% T/T in advance ,balance before shipment.

Q: What is the exact MOQ or price for your product ?
A: As an OEM company, we can provide and adapt our products to a wide range of needs.Thus, MOQ and price may greatly vary with size, material and further specifications; For instance, costly products or standard products will usually have a lower MOQ. Please contact us with all relevant details to get the most accurate quotation.