In recent years, many companies have used electric injection molding machines in their production lines. Its cleaner performance and lower energy consumption make it popular with many plastics manufacturers. When purchasing, these manufacturers will also ask how much electricity is used during work. So, in this guide, we'll answer how much electricity an electric injection molding machine uses and what the relevant factors are.
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An injection molding machine is key equipment in the injection molding production process, using various mechanisms to convert raw materials into finished products. Among them, the type and size of the injection molding machine significantly affect its power consumption. Hydraulic machines that utilize hydraulic systems for mold clamping and injection tend to consume more electricity than fully electric machines. The cycle time during the injection molding process will also directly affect power consumption. Longer cycle times will lead to increased energy consumption when producing each part. In addition, they also consume a certain amount of energy and electricity during the heating and cooling process.
The size and configuration of the electric injection molding machine play a very important role in its power consumption. The clamping force range of Topstar's electric injection molding machine is between 90T-460T. Larger machines with higher clamping force and injection capacity may require more power to operate, with their power consumption ranging from 3.8 kWh to 17.9 kWh. Machines running continuously or with long production runs tend to use less energy per component than machines that start and stop frequently. The efficiency of its servo motors and heating elements also affects energy usage. Proper maintenance and calibration of these components are critical to optimize energy efficiency.
Please note: The experimental data is for reference only, the actual data is determined by the process parameters of the product.Since different stages of the molding process have different energy requirements, measuring the power consumption of an electric injection molding machine can estimate energy usage by monitoring parameters such as motor power rating, cycle time, and operating temperature. They usually have a power consumption rating, which is the amount of electricity the machine requires to perform its operations. It includes the electricity used by motors, heaters, pumps, and other components.
The cycle time of the injection molding process refers to the time required to complete an injection molding cycle, from mold closing to mold opening. The energy consumption formula is equal to power consumption (kW) × cycle time (hours) × operating time (hours/day). Some modern machines are equipped with energy monitoring systems that provide real-time data on energy consumption, allowing operators to identify areas for improvement.
Electric injection molding machines utilize electric servo motors for all movements, including injection, mold clamping, and ejection. Unlike hydraulic machines, which rely on energy-intensive pumps and valves, electric motors convert electrical energy directly into mechanical motion, significantly reducing energy losses and increasing efficiency. Electric servo motors can also precisely control the entire injection molding process. This precision allows for more accurate control of injection speed, pressure, and position, as well as shortening cycle times and optimizing energy consumption. Topstar's electric injection molding machines are equipped with regenerative braking systems that capture and store the kinetic energy generated during the deceleration phase and reuse it in subsequent cycles.
Optimizing the energy efficiency of electric injection molding machines can take a multifaceted approach. Regular maintenance is essential to ensure your machine is running at peak efficiency. They themselves are also different from hydraulic machines, which require a pump to run continuously. Electric injection molding machines can switch off the motor during inactive phases. This feature significantly reduces idle energy consumption, ensuring the machine only uses power when necessary. Over time, significant energy savings can be achieved. Finally, using data from energy monitoring systems to identify patterns and trends can help manufacturers optimize machine settings.
The power consumption of electric injection molding machines ranges from 3.8 kWh to 17.9 kWh. Manufacturers can minimize power consumption by considering factors such as machine utilization, energy-saving features, and maintenance practices while maintaining high productivity and product quality.
Injection molding machine are essential equipment in the injection molding process. Almost every purchaser will ask about their size and functions when consulting. Previous articles have shared these two questions. Today I will share another question when purchasing: How much power does an injection molding machine consume per hour? We will take Topstar's TS series injection molding machine as an example to explain its hourly power consumption.
The hourly power consumption of Ts series injection molding machines ranges from 5kWh to 20.9kWh depending on the model, mainly affected by the size and clamping force. The chart shows that models with higher clamping force and larger injection capacity will consume more power. In addition, the design and construction of the injection molding machine, including the efficiency of the hydraulic system, electric motors, and heating elements, also affect overall energy consumption. The data in the figure is for reference only because the power consumption per hour will also be affected when different processing material types are used. Different materials have different viscosities, melt temperatures, and flow characteristics, which affect the energy required to heat and inject the material into the mold.
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Please note: The experimental data is for reference only; the actual data is determined by the product's process parameters.Different types of injection molding machines also affect their hourly power consumption. Common types include hydraulic injection molding machines, electric injection molding machines, and hybrid injection molding machines, each with their own energy consumption characteristics. The Ts series mentioned in the article is a hydraulic injection molding machine that provides power for mold clamping, injection, and ejection mechanisms through the hydraulic system. The power consumption of these machines is usually a little higher than that of electric injection molding machines. If you use hydraulic technology such as servo hydraulic systems and variable speed pumps, the power consumption will not be so high.
Electric injection molding machines use electric servo motors to power various machine parts. They are more energy efficient than hydraulic presses because they only consume electricity while running and can adjust motor speed and energy usage based on real-time needs. Hybrid injection molding machines combine hydraulic and electric technology, taking full advantage of both systems to be more energy efficient while maintaining performance and reliability.
Optimize energy use.
How do we calculate the hourly power consumption of an injection molding machine? First, we will determine the power consumption of each component of the injection molding machine, including hydraulic systems, electric motors, injection molding robots auxiliary equipment, etc. Next, we determine the energy usage of each component during different stages of the injection molding process. For example, heating, injection, and cooling during the molding cycle. Once you know the power consumption of each component, you can calculate the total energy consumption of your injection molding machine over a given period of time (usually measured in hours). The best power consumption per hour is obtained by adding the power consumption of all components and multiplying it by the operating duration (power consumption (kWh) = power consumption rate (kW) x cycle time).
Many manufacturers will also report to us that the power consumption of injection molding machines is too high, especially when injection molding large products. Traditionally, hydraulic systems have high energy consumption due to continuous pump operation and hydraulic fluid circulation. Therefore, we will add servo-driven hydraulic systems, variable frequency drives (VFD) for pumps and motors, energy recovery systems, and intelligent control algorithms to the injection molding machines. We can adjust power usage by adjusting motor speed and energy consumption to real-time demand, reducing hourly power consumption during operation.
No matter what type of injection molding machine you use, you need to optimize energy use, and part of that is process optimization. Fine-tuning processes such as injection speed, pressure, temperature, and cycle time can reduce energy consumption while maintaining product quality and production efficiency. Process optimization is another important component of energy optimization in injection molding. Fine-tuning process parameters such as injection speed, pressure, temperature, and cycle time can help minimize energy consumption while maintaining product quality and production efficiency. In addition, optimizing mold design, cooling systems, and material handling can improve overall efficiency and achieve energy savings by shortening cycle times.
The power consumption in the article is for your reference only and cannot be used as actual data. The type of injection molding machine will affect a certain amount of power consumption. Still, the material technology, injection speed, pressure, and other factors during our use directly lead to power consumption. The high and low quantity is because you must constantly optimize your injection molding parameters to make the machine more efficient.
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