Industrial automation is moving toward higher production efficiency, tighter positioning accuracy and more flexible machine architectures. As manufacturers upgrade CNC equipment, packaging systems, textile machinery, printing equipment and automated production lines, servo technology has become an important part of modern motion control.
Among the different servo power classes available today, 2kW AC Servo Motor Drive occupy an important position between compact automation and higher-load industrial motion. They can be used for individual feed axes, positioning mechanisms, winding equipment, cutting systems, indexing units and other applications where accurate control of position, speed and torque is required.
For OEMs and system integrators, selecting a servo supplier involves more than comparing rated power. Encoder technology, control modes, communication interfaces, tuning functions, motor compatibility, protection functions and technical support can all affect the final machine performance.
This article reviews five manufacturers that are worth considering when sourcing a 2kW-class servo system for industrial automation. The ranking is in no particular order. The purpose is to provide a practical comparison of product capabilities, application suitability and supplier considerations rather than claim a formal global market-share ranking.
Introduction: The Growing Role of 2kW Servo Systems in Automation
Servo systems are designed for applications where a motor must respond accurately to commands while maintaining controlled position, speed or torque. Unlike basic motor control, a servo system continuously uses feedback to compare the commanded motion with actual motor movement and adjusts operation accordingly.
This closed-loop approach makes servo technology suitable for machines where repeatability and dynamic response are important.
The 2kW class is particularly useful because it can cover many medium-power motion requirements without automatically moving into a much larger drive category. Depending on the motor, mechanical transmission and duty cycle, systems around this power level can be used for:
- CNC feed and positioning axes
- Packaging and labeling mechanisms
- Textile feeding and winding equipment
- Printing machinery
- Automated assembly equipment
- Material handling systems
- Cutting and indexing mechanisms
The actual requirement varies from machine to machine. A lightweight axis running at high speed may have different requirements from a slower axis moving a heavy load. For this reason, rated power should be considered together with torque, speed, inertia and acceleration.
For international buyers, another important factor is supplier capability. A servo drive is not an isolated component. The motor, encoder, controller, communication interface and machine mechanics must work together.
Why 2kW Servo Systems Are Widely Used in Industrial Equipment
The popularity of this power range comes from its ability to address a wide variety of industrial motion requirements.
Positioning and Motion Accuracy
Many automated machines require an axis to reach a target position repeatedly. This can include a cutting head, feeder, indexing mechanism or CNC feed axis.
Servo feedback allows the controller to monitor motor movement and compensate for deviations. The required accuracy depends on the mechanical structure, encoder resolution, transmission components and control tuning.
For applications where positioning repeatability is important, engineers should therefore evaluate the complete motion chain rather than focusing only on motor power.
Speed and Torque Requirements
A servo system may operate across a wide speed range while handling changing mechanical loads. Acceleration and deceleration can create short-duration torque requirements that are significantly different from continuous operating conditions.
This is particularly relevant to packaging, cutting and indexing equipment, where the motor may repeatedly accelerate, stop and reverse.
A correctly selected system should provide sufficient continuous torque while also handling peak requirements without excessive thermal stress or unstable operation.
Single-Axis and Multi-Axis Applications
Some machines only require independent control of one major motion axis, while others coordinate several axes simultaneously.
A single-axis configuration can simplify wiring and maintenance when independent axis control is sufficient. Multi-axis systems may be more appropriate when synchronized movement is required.
The selection should therefore consider not only the power requirement but also the architecture of the machine controller and communication network.
Key Factors to Consider When Choosing a Servo Manufacturer
A good supplier comparison should start with technical compatibility.
Rated Power and Torque
Rated power provides a useful starting point, but it does not determine whether a servo system is suitable for a particular machine.
Engineers should calculate continuous torque, peak torque, maximum speed and acceleration requirements. Load inertia should also be considered because a large mismatch between motor inertia and machine load can make tuning more difficult.
Encoder and Feedback Technology
Feedback is one of the most important differences between servo systems.
Incremental encoders can provide position information for many conventional applications, while absolute encoders can retain more complete position information and may be advantageous in machines where startup positioning is important.
Encoder resolution should also be evaluated alongside the mechanical transmission and required positioning accuracy.
Control Modes
Different applications may require different control strategies.
Position control is commonly used for indexing and positioning. Speed control can be useful for feeding and winding systems. Torque control may be more important for tension-related applications.
A flexible servo platform should allow engineers to select an appropriate control mode rather than forcing every machine into the same configuration.
Communication Interfaces
Communication requirements depend on the machine architecture.
Pulse-based control can be suitable for relatively simple motion commands. RS485 and Modbus-type communication can support parameter and status communication, while industrial Ethernet and fieldbus systems can be useful for coordinated automation.
The communication interface should always be checked against the PLC, motion controller and existing factory network.
Protection and Tuning Functions
Protection functions help the drive respond to abnormal operating conditions such as over-current, over-voltage, overheating or feedback faults.
Tuning functions are equally important because servo performance depends heavily on how the controller responds to the mechanical load.
Top 5 2kW AC Servo Motor Drive Controller Manufacturers
The following five manufacturers represent different approaches to industrial servo technology. The ranking is in no particular order.
Zhejiang Tonghang E-Drive Technology Co., Ltd.
Zhejiang Tonghang E-Drive Technology Co., Ltd. focuses on servo drives and servo motors for industrial automation and provides products across different power classes and control architectures.
Tonghang's 2kW single-axis servo drive is specified with 2000W output power and three-phase 220V AC input. The published specifications list position, speed, JOG and torque control modes, together with pulse and analog command inputs. Feedback options include 2500-line incremental encoders and 17/23-bit absolute encoders, while RS485 is provided for parameter monitoring.
The product architecture uses a DSP control core and intelligent IPM power module. Tonghang also lists protection against over-voltage, over-current, overheating and under-voltage, together with a soft-start circuit.
For OEM customers, the broader servo portfolio is also relevant. Tonghang's product range includes T3, T5A, EtherCAT, CANopen and other servo platforms, allowing buyers to consider different feedback and communication configurations according to the machine architecture.
The company's 2kW product information identifies CNC machining and routing, packaging and labeling, automated assembly, and textile and printing equipment among its application areas.
This makes Tonghang particularly relevant to machine manufacturers looking for a China-based supplier that can evaluate drive and motor matching as part of the same project. For OEM procurement, factors such as communication requirements, encoder selection, machine load and control method can be discussed before final configuration.
Yaskawa
Yaskawa is an established global motion-control manufacturer with the Sigma-7 family covering servo amplifiers, rotary servo motors, gear motors, direct-drive motors and linear servo products.
The Sigma-7 portfolio includes single-axis SERVOPACKs covering a broad power range. Yaskawa also provides different interface and communication configurations for machine builders working with various automation architectures.
One of the notable characteristics of the Sigma-7 platform is its focus on servo tuning and motion performance. Yaskawa provides functions related to automatic tuning, vibration suppression, friction compensation and other control technologies.
The broad product range allows machine builders to select different motor and amplifier configurations for different axes within the same machine. This can be useful for equipment containing both low-load and higher-load mechanisms.
Yaskawa is therefore worth considering for buyers that prioritize a mature motion-control ecosystem, broad product availability and established engineering tools.
Mitsubishi Electric
Mitsubishi Electric provides servo technology through the MELSERVO product family and integrates motion control into its wider factory automation portfolio.
The MELSERVO-J5 range includes servo amplifiers for different voltage classes and communication architectures. Mitsubishi Electric also provides servo motors, controllers and related automation products designed to work together within its industrial automation ecosystem.
One important feature of the platform is its focus on high-speed motion control and automatic adjustment functions. These functions can help engineers configure servo performance according to machine characteristics.
Mitsubishi Electric can be particularly attractive to OEMs that already use Mitsubishi PLCs, HMIs and other factory automation components. Keeping the controller, network and servo system within the same ecosystem can simplify system integration.
For buyers comparing Mitsubishi products with other suppliers, the exact amplifier model, input voltage, communication interface, encoder configuration and safety requirements should be checked before selection.
Siemens
Siemens approaches servo motion from the perspective of a wider industrial automation ecosystem. Its SINAMICS portfolio covers drives and motion-control products for different machine requirements.
The SINAMICS S210 servo system is designed for motion applications and is intended to work closely with Siemens automation platforms. Its position within the SINAMICS family makes it relevant to machine builders that want servo control integrated with PLC, motion and industrial networking functions.
One advantage of the Siemens approach is ecosystem compatibility. OEMs already using Siemens automation equipment may benefit from keeping drive, controller, engineering software and communication architecture within the same platform.
For a 2kW-class application, buyers should check the exact S210 configuration, motor selection, input voltage, communication setup and safety requirements rather than selecting a model based solely on nominal power.
This is particularly important for international machinery projects because electrical standards, cabinet design and network architecture may differ between markets.
Leadshine Technology Co., Ltd.
Leadshine provides motion-control products covering servo drives, servo motors, stepper systems and related control products.
Its 2000W servo products provide multiple control modes and are designed for industrial motion applications. Depending on the series and configuration, Leadshine servo systems can support position, velocity and torque control together with different command and communication methods.
Leadshine also provides functions aimed at improving servo response, vibration control and motion stability. Its broader product portfolio gives machine builders the ability to compare servo and stepper technologies according to application requirements.
The company can be relevant to OEMs and motion-control integrators that want a supplier with experience across several motion technologies.
As with the other manufacturers, the final selection should be based on the actual machine requirements, including load, speed, encoder, communication and control architecture.
Comparison of the Five Servo Manufacturers
The five manufacturers have different strengths, so buyers should avoid treating the comparison as a simple ranking.
| Manufacturer | Product Focus | Notable Consideration | Potential Buyer |
| Tonghang E-Drive | Servo drives and motors | Drive-motor matching and OEM support | China sourcing, OEM machinery |
| Yaskawa | Motion control and servo systems | Broad servo ecosystem | Global machine builders |
| Mitsubishi Electric | Factory automation and servo | Automation system integration | Mitsubishi automation users |
| Siemens | Industrial automation and drives | Automation ecosystem integration | Siemens-based OEMs |
| Leadshine | Servo and motion control | Flexible motion-control portfolio | OEM and motion-control integrators |
The table should be used as a starting point rather than a formal market ranking.
A supplier with a large global ecosystem may be preferable for a multinational automation project, while an OEM may prioritize customization, direct engineering communication or drive-motor matching.
The most appropriate choice depends on the complete machine specification.
Which Industries Use 2kW Servo Systems?
Servo systems in this power range can be applied across a wide variety of industries.
CNC and Machine Tools
CNC machines require controlled movement of feed axes, rotary mechanisms and positioning systems. Servo feedback allows the controller to monitor movement and maintain the required motion profile.
For CNC applications, engineers should pay particular attention to positioning accuracy, acceleration, maximum speed and mechanical inertia.
Packaging and Labeling
Packaging machinery often performs repeated indexing, feeding, cutting and sealing operations.
Servo control can coordinate these movements while allowing the machine controller to change speed or position according to the production cycle.
Textile and Printing Machinery
Textile and printing equipment may require stable speed, coordinated movement and controlled tension.
Applications such as material feeding, winding and positioning can benefit from servo technology when the machine requires more precise motion than basic motor control can provide.
Assembly and Material Handling
Automated assembly equipment may use servo axes for component positioning, pressing, transferring or indexing.
The required configuration depends on load characteristics, cycle time and positioning requirements.
Automated Production Lines
Production lines can use servo systems in conveyors, feeders, inspection mechanisms and synchronized positioning units.
Where multiple axes need to work together, communication and controller compatibility become increasingly important.
How to Select the Right Servo System for Your Machine
Selecting a servo system should start with mechanical requirements.
Calculate Continuous and Peak Torque
Determine the torque required during normal operation and the maximum torque required during acceleration, deceleration or sudden load changes.
Peak torque should not be confused with continuous torque. Both values need to be considered when selecting the motor and drive.
Check Motor Speed Requirements
The maximum required speed should be determined before selecting the motor.
A machine may need high speed during one part of its cycle and high torque during another. Engineers should therefore evaluate the complete speed-torque curve rather than relying only on rated speed.
Evaluate Load Inertia
Load inertia can strongly influence servo tuning.
A high inertia ratio may require different motor sizing, mechanical transmission or tuning parameters. Providing the supplier with accurate inertia information can improve the initial configuration.
Select the Right Encoder
The encoder should match the positioning requirement and controller interface.
Incremental feedback can be suitable for many standard applications. Absolute encoder systems may be preferable when the machine requires more detailed position information or specific startup behavior.
Confirm the Communication Protocol
The servo should communicate correctly with the machine controller.
Before ordering, confirm whether the system requires pulse input, analog control, RS485, Modbus, EtherCAT, PROFINET, CC-Link or another communication architecture.
Common Questions Before Purchasing a 2kW Servo System
How Do I Calculate the Required Servo Power?
Start with continuous torque, peak torque, operating speed, acceleration time and load inertia. These values should be evaluated together rather than selecting a motor from power alone.
Is an Absolute Encoder Necessary?
Not every application requires an absolute encoder. The choice depends on the positioning requirements, startup behavior and controller architecture.
For applications where position information is especially important, an absolute encoder may provide additional advantages.
Which Communication Protocol Should I Choose?
The communication protocol should match the PLC or motion controller already used by the machine.
For simple systems, pulse-based control may be sufficient. Networked machines may benefit from a fieldbus or industrial Ethernet solution.
Can the Drive and Motor Be Matched by the Manufacturer?
Yes. This is often preferable to selecting the two components independently.
The supplier can evaluate power, torque, speed, encoder and control requirements as a complete system.
Inquiry & Technical Cooperation
For CNC equipment manufacturers and industrial automation integrators, selecting a reliable servo drive partner is essential for achieving stable motion control and machine performance.
Tonghang E-Drive Technology Co., Ltd. provides:
• 2kW servo drive solutions
• Motion control integration support
• Product selection guidance
• Engineering tuning assistance
Cooperation Process:
• Application requirement analysis
• Product configuration recommendation
• Sample testing and validation
Sample testing and validation
• Mass production supportass production support
Whether for standard automation equipment or customized motion control projects, TH provides professional technical support to help customers achieve efficient and reliable system integration.