This article reviews ten popular servo motors (in no particular order).
Siemens 1FT7 servo motor
The 1FT7 motor is a compact synchronous motor suitable for high-performance applications, meeting stringent requirements for accuracy, dynamic characteristics, speed set range, protection rating, and robustness. It features the latest encoder technology and is optimized for use with Siemens' fully digital drive and control systems. Cooling options include natural cooling, external cooling, or water cooling.
advantage
1. Four times the overload capacity
(For natural cooling) High dynamic performance is achieved over a wide speed range.
2. Extremely high workpiece surface quality
This contributes to smooth operation and minimal torque fluctuation.
3. Easy to install and maintain
It features rotatable connectors, cross rails, quick-locking connectors, electronic nameplates, and allows for easy field encoder replacement (without any adjustments).
Bosch Rexroth MSK synchronous servo motors
A notable feature of the MSK series motors is their wide power range and finely categorized size range. These synchronous servo motors offer high torque density, with a maximum torque of up to 495 Nm (self-cooled). Two encoder models are available to suit different levels of accuracy. Furthermore, various optional accessories such as keyways and brakes, increased concentricity, and IP65 protection ratings are available, allowing the system to be used with fans, water cooling systems, and ATEX.
Lenz MCS synchronous servo motor
Lenze MCS synchronous servo motors are used for precisely controllable motion, with a torque range from 0.5 to 190 Nm (0.25 to 15.8 kW), and are particularly suitable for applications requiring high dynamics, high precision, and minimal size. They feature high overload capacity, high rotational acceleration, and plug-in technology for quick and easy installation. An electronic nameplate facilitates easy commissioning. A rotary transformer provides alternating feedback: incremental or absolute encoders utilize high-quality magnetic materials (SEpT technology) and a specially developed pole configuration to enhance power density. They support hand-held braking, have an IP65 protection rating (IP54 for forced air cooling), and offer superior precision and energy efficiency.
Schneider Electric Lexium MDrive motor
Schneider Electric's Lexium MDrive integrated motor innovatively combines the advantages of stepper motors and servo motors, offering a compact and powerful design, stable performance, easy installation, and savings of up to 50% on total costs. In terms of technological innovation, the Lexium MDrive integrates multiple communication and control methods, including P/D, CANopen, EtherNet/IP, Modbus TCP, and internal motion tasks, allowing customers to choose flexibly. Simultaneously, the Lexium MDrive employs the new Hybrid technology, combining the advantages of stepper motors and servo motors, fully leveraging the low-speed, high-torque characteristics of stepper motors and the automatic adaptation capabilities of servo motors.
Furthermore, the Lexium MDrive motor employs closed-loop control, ensuring high stability and low operating temperature, thus resulting in greater efficiency and energy savings. A four-year warranty reduces maintenance costs for users.
Kollmorgen AKM series servo motors
AKM servo motors boast industry-leading performance and power density, with low tooth jamming and low harmonics ensuring smooth operation. They are easy to use, plug-and-play, and automatically tune with AKD drivers. A wide range of standard products are available, and joint R&D customization is also possible.
Features:
1.8 frame specifications, 28 frame/laminate combinations
2. Speed up to 8000 RPM
3. 75 VDC, 120, 240, 480 VAC windings
4. Direct installation to most Kollmorgen servo drives
5. When the ambient temperature is 40°C, the rated winding temperature reaches 100°C, and 155°C (Class F) insulation material is used.
6. CURUS, CE, UL certifications
Rockwell Automation Kinetix VP Servo Motor
Kinetix servo motors provide smooth, integrated motion control via EtherNet/IP networks. The Kinetix VPC continuously running servo motor is optimized for operation on the Kinetix 5700 servo drive, providing continuous power and torque. The Kinetix VPL low-inertia servo motor and the Kinetix VPF food-grade servo motor work with the Kinetix 5500 and 5700 servo drives, offering high dynamic performance.
characteristic
1. Provide real-time motor performance information to the control system via digital feedback devices.
2. Optimized to match inverter ratings, facilitating efficient determination of system specifications.
3. Use a single cable to provide feedback, motor braking, and motor power.
Yaskawa ∑-V series servo motors
Yaskawa's ∑-V series (rotary) servo motors feature reliable wiring, oil and dust resistance, and high amplifier responsiveness, significantly reducing settling time to 1/12 of previous Yaskawa products. Improved vibration suppression enhances tracking performance and shortens settling time. Furthermore, it reduces vibration (noise) during drive and at the mechanical front end when stopped, improving mechanical performance through the combination of medium-inertia motors.
The Yaskawa ∑-V series includes the following models:
SGMJV (Small Capacity/Medium Inertia): 100W~750W
SGMAV (Small Capacity/Low Inertia): 50W~1.0kW
SGMPS (Small Capacity/Medium Inertia/Flat Form): 100W~1.5kW
SGMGV (Medium Capacity/Medium Inertia): 300W~15kW
SGMSV (Medium Capacity/Low Inertia): 1.0kW~7.0kW
Yaskawa Electric is a professional manufacturer in the field of motion control. It was the first company in Japan to make servo motors. Its products are known for their stability, speed, and high cost performance. Its servo brand ranks among the top in global sales and industry applications.
Mitsubishi Electric HG-KR Servo Motor
The Mitsubishi Electric MELSERVO-J4 series servo motors utilize a dedicated execution engine with a unique high-speed servo control structure and a maximum response frequency of 2.5kHz. Combined with its independently developed high-resolution absolute position encoder (4,194,304p/rev), processing speed is significantly improved. The MELSERVO-J4 rotary servo motors include three series: HG-KR (small capacity, low inertia), HG-MR (small capacity, ultra-low inertia), and HG-SR (medium capacity, medium inertia).
Sanyo Electric SANMOTION R
Sanyo Electric's "SANMOTION R" servo motor offers agile movement and a maximum instantaneous torque of 18 N·m, significantly reducing acceleration and deceleration times and improving command responsiveness. The maximum speed has increased by approximately 33%, reaching 6,000 min⁻¹. This helps shorten production cycle time and increase productivity. Due to the increased torque and high speed, it delivers significant output even in a compact size. Compared to previous products with the same output, the overall length is reduced by approximately 23%, and the weight by approximately 22%. It is suitable for spring forming machines, printed circuit board drilling machines, robots, and more.
SanyoDenki AC servo drive systems were among the first Japanese servo systems to enter the Chinese market. Their superior performance, high speed, precision, flexibility, long service life, and cost-effectiveness have earned them widespread acclaim.
Delta ECMA series servo motors
Delta's ASDA series AC servo systems are based on core electronic technologies and developed to meet the needs of customers in various mechanical applications. All products utilize high-speed digital signal processors (DSPs) in their control loops, combined with automatic gain adjustment, command smoothing functions, and software analysis and monitoring, to achieve motion control requirements such as high-speed displacement and precise positioning. The ECMA series servo motors, developed in 2005, marked a significant milestone in the development of Delta's AC servo systems.
Features:
1. Capacity range: 0.1kW~7.5kW
2. Permanent magnet synchronous motor
3. Torque range: 0.32Nm ~ 47.74Nm
4. Speed range: 1000 r/min ~ 3000 r/min
5. Encoder type: 2500ppr, 17bit, 20bit
6. Custom-made products: brakes, oil seals, absolute encoders
7. Shaft type: Circular shaft, keyway
