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What is a hybrid injection molding machine?

2024/02/26 By 兰兹

hybrid injection molding machine 1

In the plastic products industry, injection molding machines have long satisfied users with high precision, efficient production, and high-quality production processes. With the advancement of technology and the increase in user needs, hybrid injection molding machine have emerged, which are injection molding machine solutions that combine the advantages of hydraulic and electric systems. In this article, we will share what a hybrid injection molding machine is and give you more information about it.

The rise of hybrid injection molding machine

The reason is that we discovered the disadvantages of hydraulic and electric injection molding machines. The accuracy of hydraulic injection molding machines may not be that high, but the production environment is clean. The finished products are easily deformed. The performance of electric injection molding machines is higher, and the production environment is more hygienic, but the price will be higher. The hybrid injection molding machine combines hydraulic and electric devices with an oil and electricity interactive drive to form the same platform configuration. It is suitable for high cleanliness and hydraulic machine manufacturing upgrade scenarios.

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Traditional hydraulic injection molding machine

Traditional hydraulic injection molding machines have always been the core machines used to produce significant products in the plastics industry. They rely on hydraulic power systems to drive the injection, mold clamping, and ejection processes. Hydraulic injection molding machines can usually provide high clamping forces of 90t-2800t, making them suitable for molding large and complex parts. In contrast, the durability and reliability of the hydraulic system use fewer mechanical parts that are prone to wear. Their super strong template design ensures balanced force and is suitable for most products. At the same time, their prices are also lower than those of other injection molding machines.

Their shortcoming is energy inefficiency, as they require constant energy consumption to maintain pressure and operate hydraulic pumps, resulting in higher operating costs. At the same time, hydraulic injection molding machines often lack the accuracy and repeatability of electric motors, especially in terms of injection speed, pressure control, and injection size accuracy. In addition, their production environment will be unclean due to oil leakage.

Electric injection molding machine

Electric injection molding machines rely on electric servo motors to realize all machine movements. The most obvious advantage is that they have higher energy efficiency and do not need to run a hydraulic pump continuously. The motor provides greater precision during the injection molding process, allowing precise control of injection speed, pressure, and position, producing products with tight tolerances. Moreover, the motor runs quieter than the hydraulic press, and the production environment is cleaner. Electric injection molding machines typically have higher upfront costs than hydraulic machines, and the motors may have limitations in clamping force, making them less suitable for molding large and heavy parts that require high clamping force.

Main advantages

Hybrid injection molding machines combine the advantages of hydraulic and electric technologies and use the benefits of these two systems to improve the plastic injection molding process’s performance, efficiency, and versatility. The hybrid machine utilizes electric servo motors for an energy-intensive process, uses extremely low injection speeds, has high pressure, and maintains pressure, combined with precise pressure control to ensure thick walls do not shrink. In addition, a unique optical screw is used to provide good mixing and exhaust to ensure that transparent products do not turn yellow.

The hybrid machine retains the hydraulic system for the clamping operation, allowing it to deliver the high clamping force required to mold large, complex parts easily. Their wide supporting feet provide stable dynamic support, making the opening and closing of the mold smoother. The highly rigid structure of the integrated shooting base is also more durable and reliable. They provide flexibility and versatility in production, allowing users to adjust machine settings for different molding applications while adapting to changing production requirements.

Applications and Industries

Some key industries and applications where hybrid injection molding machines are commonly used include the automotive industry and consumer goods, among which they play a vital role in the medical device industry. Used to manufacture disposable medical products, surgical instruments, diagnostic equipment, and more. The cleanliness, precision, and repeatability of hybrid injection molding machines enable the production of sterile, high-quality medical parts that meet strict regulatory standards. Their versatility and performance make them an affordable option.


The emergence of hybrid injection molding machines meets the needs of users with limited budgets and requires high-precision performance injection molding machines. Because they have the advantages of hydraulic and electrical systems, they enable users to produce high-quality plastic parts at higher speeds, with more flexible parameter settings and higher precision.

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