There is a growing interest in electric injection molding machines in plastics processing. These machines are based on proven and reliable components from well-known brands and are a very good alternative to popular hydraulic injection molding machines. If your company cares about the rational management of resources and the image of a modern enterprise for which ecological issues are a priority, it is worth considering electrically powered machines.

They have many advantages, we’ve outlined some of them below.

  • Low operating costs

The price of an electric injection molding machine looks very favorably from the perspective of the long-term operating costs of the machine. The savings are strictly dependent on the application, production method and cycle length, but as a rule, electric machines use 20 to 40% less electricity than corresponding hydraulic machines.

In addition, the electric injection molding machine recovers braking energy that can be used for other processes. The electric injection molding machine is also characterized by a low cooling load, which reduces water consumption by up to 70%.


  • Clean production and work comfort

The use of electric injection molding machines means lower noise levels up to 10 dB (A) and cleaner production. Electric injection molding machines are perfect for clean-rooms.


  • They do not require cooling

The electric machine does not require cooling of hydraulic oil and incurring investments in the development of infrastructure in this area. It is perfect for plants where cooling capacities are running out.


  • Perfect match

An example of a proven machine with electric drive is KraussMaffei PX injection molding machines , which are the result of two decades of experience in the production of electric drive devices. The series includes injection molding machines with a mold clamping force from 250 kN to 4000 kN. The distinguishing feature of the PX series is a very large number of combinations of clamping forces and injection units, which makes it possible to find an ideally suited type of machine for each customer.


  • Less repairs and maintenance

There are fewer components in electric machines that can fail due to the lack of a drive hydraulic system, filters, valves, seals.

  • Price

The price difference between an electric and a hydraulic injection molding machine has narrowed considerably in recent years. Depending on the equipment and size of the machine, it ranges from a few to a dozen or so percent in favor of a hydraulic injection molding machine.

  • Equipped with innovative functions

Electrically powered machines have very interesting applications that are a manifestation of the Fourth Industrial Revolution. For example, the electric PX series injection molding machines by KraussMaffei are equipped with the innovative and patented APC function – Adaptive Process Control. Thanks to it, the machine automatically modifies the main injection parameters based on information about the viscosity of the material, which changes depending on the batch of material, the proportion of regrind, weather conditions, etc. Such variable production conditions, without personnel interference, would so far have an impact on the dimensional stability and quality of the molded parts. The APC function is suitable for all thermoplastics as well as thermosets including liquid silicone.

Another example is the SocialProduction function, a tablet and smartphone-based tool for remotely monitoring the status of a KraussMaffei injection molding machine and communicating with the service.


If you have additional questions about injection molding machines, please contact the Dopak sales department: Ilona Bazgan: tel. 48 71 358 40 33 or +48 509 765 325, e-mail:

Also read comparison of electric and hydraulic injection molding machine .