The lifespan range of injection molding machine servo motors is roughly between 10000 and 30000 hours. It is equivalent to 5 to 15 years of operation time, depending on the intensity of use and maintenance.
The service life of servo motors in injection molding machines usually ranges from tens of thousands to hundreds of thousands of hours, depending on the usage conditions and maintenance. By optimizing control parameters, regular maintenance, and selecting efficient servo systems. It can improve the service life of servo motors, extend and production efficiency. For example, the bearing life of some servo motors can reach 20000 to 30000 hours. If the motor operates at a lower speed, its lifespan may be significantly extended.
In this blog:How long do servo motors last for injection molding machine?, we will tell you lifespan of servo motors. And influencing servo motor life factors like: control capability, hydraulic system stability and so on.
Injection molding machine servo motor
The servo motor of the injection molding machine is an efficient and energy-saving motor system used to drive the moving parts of the injection molding machine. Its main function is to improve production efficiency and product quality by accurately controlling the speed, pressure and position during the injection molding process.
Servo motor injection molding machines occupy an important position in the modern plastic processing industry. With its high efficiency and energy saving, high precision, flexibility and low maintenance cost. It not only improves production efficiency and product quality, but also promotes the technological upgrading and sustainable development of the entire plastic processing industry.
Typical lifespan of servo motors last for injection molding machine
Servo motors last for injection molding machines are generally rated for high durability and if properly maintained can last 10,000 to 20,000 hours, or about 5 to 10 years. However, some OEMs (original equipment manufacturers) list a lifespan in the range of 20,000 to 30,000 hours.
Influencing factors of servo motors last for injection molding machine
The application of servo motors in injection molding machines significantly affects their performance and lifespan, especially in terms of pressure maintenance, energy consumption control, accuracy, and stability. The following are the main factors that affect the service life of servo motors in injection molding machines:
Control capability of servo motor
The control capability of servo motors is one of the key factors affecting their service life. The servo motor provides real-time feedback and adjustment through a closed-loop control system, thereby maintaining more accurate pressure output during the holding phase.
In contrast, traditional injection molding machines use quantitative pumps for pressure maintenance, and the pressure regulation is relatively rough, which may lead to unstable pressure. The dynamic response capability of servo motors can adjust the holding pressure more finely according to process requirements, ensuring stable pressure at each holding stage and reducing product size deviations and defects. In addition, the high-precision control capability of servo motors directly determines the efficiency of the pressure holding performance of injection molding machines.
Hydraulic system stability
The performance of servo motors is also affected by the stability of hydraulic systems. The servo system can achieve higher system pressures (such as 20MPa, 25MPa, etc.) through intelligent control schemes, thereby improving the speed, accuracy, and reliability of the entire system.
At the same time, the servo system can achieve high-speed, high-precision, and high acceleration (>0.5g) operation according to different product requirements. When unloaded, the speed is 0-2000rpm and the acceleration time is 25ms; when loaded, the speed is 450-2000rpm and the acceleration time can reach 50ms.This efficient control scheme not only improves the stability of the system, but also extends the service life of the servo motor.
Maintenance servo motors
The service life of servo motors is also affected by their maintenance and upkeep. Research has shown that the lifespan of servo motors is typically estimated to be 20000 to 30000 working hours, but the actual lifespan may vary depending on maintenance conditions, working environment, and specific application requirements. Regular maintenance and upkeep can effectively extend the service life of servo motors.
For example, timely replacement of worn mold components can avoid surface quality degradation caused by mold aging or damage. In addition, lubrication and cleaning of servo motors are also important factors in extending their service life.
Working environment and operating conditions
The service life of servo motors is also affected by their working environment and operating conditions. For example, when a mold operates in a clean, non corrosive environment, its lifespan is usually longer. On the contrary, exposure to harsh environments such as dust, debris, and corrosive substances can accelerate wear and reduce performance.
In addition, factors such as temperature, humidity, and vibration in the operating environment of servo motors can also affect their lifespan. For example, when a servo motor operates in high temperature or high humidity environments, it may accelerate the aging of internal components, thereby shortening its service life.
Power and energy consumption of servo motors
The power and energy consumption of servo motors are also important factors affecting their service life. The servo motor runs at a lower speed during the holding phase and hardly works during the cooling phase, saving a lot of energy.
Research has shown that the energy consumption of servo motors is usually less than half of that of ordinary hydraulic presses, and the power consumption during standby is also significantly reduced. Compared with traditional injection molding machines, it can save about 20% -80% of energy consumption.
This energy-saving feature not only reduces operating costs, but also reduces the heating and wear of the motor, thereby extending its service life.
Stability of servo motor control system
The stability of the control system of servo motors is also an important factor affecting their service life. The control system of a servo motor usually includes control circuits such as position loop, speed loop, and force loop, and the stability of these circuits directly affects the operational performance of the servo motor.
For example, the control gain of servo motors (such as Kp, Ki, Kd) must be precisely adjusted to ensure the stability and response speed of the system.
If the control system is unstable, it may cause problems such as vibration, noise, and overheating of the servo motor during operation, thereby shortening its service life.
Storage conditions
If the servo motor is stored for a long time, it is recommended to store it in a clean and dry environment, and regularly check and add anti-rust oil to prevent rust.
Indoor storage
Servo motors should always be stored indoors to avoid the influence of dust and moisture. If the storage environment is dusty or humid, appropriate covering measures should be taken to protect the motor.
Packaging protection
The servo motor should be stored in its original packaging box to prevent mechanical damage and external environmental influences. If the packaging box is deformed, it should be replaced immediately.
Rust proof
Servo motors are usually coated with rust proof oil or paint before leaving the factory, but corrosion may still occur during long-term storage. Therefore, if the storage time exceeds 6 months, it is recommended to reapply anti rust oil, especially for processing precision components such as shafts.
Environmental requirements
- Temperature: It is recommended to store at a temperature between -15 ° C and 55 ° C.
- Humidity: The relative humidity should be below 60%.
- Vibration: The storage environment should be free of vibration, and the vibration value should be less than 0.2 mm/s.
- Air quality: Avoid the presence of corrosive gases.
Long term storage restrictions
It is recommended that the long-term storage time of some servo motors should not exceed 2 years. If the storage exceeds 6 months, special protective measures are needed, and it is recommended to contact technical support.
Haichen injection molding machine servo motor
We are Haichen Machinery, produce plastic injection molding machines.
Our hydraulic servo motors for injection molding machines usually last between 5 and 10 years depending on your working environment and maintenance. That enables our injection molding machines with high precise injection and stable running performance. Servo motors last for injection molding machines and are usually between 5 and 10 years, but the specific life span will vary depending on the usage environment, maintenance, and working conditions.
Haichen is one Chinese injection molding machine manufacturer. Our servo energy saving injection molding machines quality under CE safety standards certificated.
Haichen have rich experience of producing plastic products, with successfully cases for your reference. We can supply complete production line as per customer’s specific demand.
Consider the above. You can choose a suitable plastic injection molding machine and mold to ensure product’s quality and production efficiency.
