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Picture shows mold temperature control in injection molding with ENGEL iQ flow control

Mold Temperature Control in Injection Molding

Save Energy with iQ flow control

20% of rejects in injection molding are a result of mold temperature control errors. Process monitoring and a stable temperature control process are essential prerequisites for consistent production processes and high product quality. The digital product, iQ flow control, automatically adjusts the mold temperature control.


Less energy consumption


Less cooling water consumption


Reduction of maintenance work

2 years

Return on investment possible

Automatically Consistent Process Conditions

Based on the measurement results of the e-flomo plus water distribution system, iQ flow control automatically optimizes mold temperature control in injection molding production in combination with the ENGEL e-temp temperature control unit. The temperature control unit and iQ flow control self-regulate pump output and water quantities to a minimum. This creates consistent conditions throughout the injection molding process and higher energy efficiency.

Advantages of Self-Regulating Mold Temperature Control in Injection Molding
Reduce energy consumption by 85%

The iQ flow control software continuously adjusts the speed of the pumps in the temperature control units during production. Customer calculations show that this can reduce the energy consumption of the temperature control process by 85%. This results in CO2 savings of approx. 160 t per year.

Reduce cooling water consumption by up to 50%

iQ flow control monitors the temperature difference in each distribution circuit of the e-flomo plus. The software calculates the cooling water requirement and passes this information on to the temperature control unit. The temperature control unit provides the appropriate amount of water and automatically adjusts to changing parameters.

Simple operation and transparent data

You can easily operate iQ flow control as well as the hardware devices with the CC300 machine control. Important mold temperature control parameters in the injection molding process are available. The actual values of all temperature control circuits as well as those of the temperature control units, are displayed on the injection molding machine control. Changes and errors can’t be missed.

Reduce scrap through active process monitoring

20% of rejects in the injection molding industry are caused by temperature control errors. iQ flow control decreases this number by increasing process consistency. If fluctuations occur, the machine is stopped before rejects are being produced.

Improved surface quality of your plastic parts

Optimum temperature distribution in the cavity is crucial to produce, for example, high-gloss surfaces. As no shading occurs on the plastic parts and the gloss level remains uniform.

Repeatability of the temperature setting

The ideal differential temperature control is repeatable during the next production. Mold temperature control in injection molding allows the production of good parts without repeating trials.

Reduce maintenance by up to 50%

Intelligent mold temperature control in injection molding means that the pump does not have to operate constantly at full load. This reduces wear and the pump can be used for longer. Maintenance costs for temperature control units are cut down by up to 50%.

Mold temperature control saves money

By bundling several temperature control circuits, less temperature control units are needed. This reduces the investment costs. Customer trials have shown that with ideal design and the recommended operating mode, the return on investment (ROI) can be two years.

Do You Want to Optimize Your Temperature Control Processes and Save Costs?

Our experts are happy to answer any questions you may have about mold temperature control in injection molding and support you in optimizing your part quality as well as reducing your energy costs.

Picture shows employees of P&G Manufacturing and ENGEL
Testing Processes Instead of Parts

Mold temperature control in injection molding has a considerable influence on product quality. Procter & Gamble Manufacturing is therefore increasing the transparency and consistency of the temperature control processes with e-flomo and iQ flow control by ENGEL.

Basic Components for Ideal Mold Temperature Control in Injection Molding

The temperature control unit and the water flow regulator provide the data that can be monitored, optimized, documented, and actively controlled using iQ flow control. This enables you to make your mold temperature control in injection molding repeatable, time-saving and convenient. Both devices are fully integrated in the CC300 machine controller.

Image shows interaction of basic components for mold temperature control in injection molding
Picture shows water distribution system e-flomo plus by ENGEL
Water Distribution System for Mold Cooling And Temperature Control

e-flomo plus

The compact e-flomo plus devices replace traditional cooling water flow regulators with floatation metering, which determine and control the actual flow rates required.

Picture shows temperature control unit e-temp by ENGEL
Speed-Controlled Temperature Control Unit with OPC-UA Interface


The pump in the e-temp temperature control unit enables energy-efficient operation of your injection molding machine by automatically adjusting the pump speed.

How Does Mold Temperature Control Work in Practice?

The decisive factor for mold temperature control in injection molding is the interaction of the three temperature control components e-temp, e-flomo plus and iQ flow control.

Video shows how mold temperature control works in injection molding >
Further Information on Mould Temperature Control in Injection Moulding
Further Solutions for Production Optimization
Image shows networked injection molding machine by ENGEL

Digital solutions

  • Optimization of injection molding processes along the product life cycle

  • Networking across the system

  • Utilize the full potential of your production

Picture shows machine operator at the CC300 injection molding machine control unit

Injection Molding Machine Control


  • Safe and intuitive

  • Innovative machine operation

  • Self-explanatory navigation

  • Customizable configuration

Picture shows service technician from ENGEL

Global Service and Support

Support and training for digital solutions

  • Expert advice

  • Analysis of your machines

  • Implementation of digital solutions

Picture shows digital solutions for injection molding ENGEL


With intuitive software solutions, you have your production in view, exploit all potentials and support your employees.

Markus Lettau

Molding Industry Business Advisor

+1 (717) 767 2016

Write us

The ENGEL team is happy to support you with extensive knowledge in the field of injection molding.

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