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The Powerful, Large two-platen Injection Molding Machine in a Compact Design duo Injection Molding Machine

Picture shows large injection molding machine from ENGEL

The duo large injection molding machine features a flexible layout and compact external dimensions. Suitable for various applications: from transport boxes and dashboard supports to large rainwater tanks. Available with clamping forces from 3,500 kN to 55,000 kN, with more available on request.




Drive type

< 55,000 kN

Clamping force

The Large duo Injection Molding Machine in Use
  • Production of Waste Collection Systems

    With a clamping force of 55,000 kN, a shot weight of 27,500 g and, a cycle time of 140 sec, the duo 5500 produces 1100-L waste containers.

  • Production of Automotive Front Panel Demonstration Board

    Single-stage process combining decoration and scratch-resistant surface protection in one production step through IMD and PUR coating.

  • Use of Recyclates in the Production of Transport Boxes

    Transport boxes with recyclate in the core are produced on a large duo injection molding machine using the ENGEL skinmelt plasticizing process.

  • Production of interior trim for car doors

    The first production cell to form three organic sheets of different thicknesses and design a high-quality visible surface in the same process step.

  • Production of automotive interior trim

    Equipped with a demand-oriented range of functions, a PP compound with 30% post-consumer recyclate is processed on a standard machine.

All-rounder for a Wide Range of Applications
Picture shows managing director Zechmayer GmbH

The complexity of the applications continues to increase. In the future, we also want to support research work. That is why we have invested for the future. The large duo injection molding machine is unique in its versatility.

Jörg Zechmayer, Managing Director Zechmayer GmbH
The Advantages of the duo Large Injection Molding Machine
Energy-saving production of large components
Image shows energy-saving production of large components

The ENGEL ecodrive servo-hydraulics ensure high economic efficiency in the production of large-volume or large- area parts. It is included in the scope of the entire duo series. Thanks to the demand-based pump output, the motors are at rest and do not consume energy when the machine is at a standstill during cooling, for example.

Compact size & flexible machine layout
Picture shows flexible machine layout of the large injection molding machine from ENGEL

The duo is a large and flexible injection molding machine with a standardized modular principle and compact external dimensions. This saves valuable floor space. With numerous option packages, the design can be customized from basic requirements to turnkey solutions.

Increase productivity with digital solutions
Image shows application of digital solutions

Our digital solution, iQ clamp control, automatically determines the optimum clamping force. This reduces mold wear. Mold breathing is always kept in the ideal range and scrap is reduced.

Less downtime due to modular injection unit
Picture shows modular injection unit from ENGEL

Special molds are no longer required for quick and easy melt cylinder changes. Together with the changeable nozzle concept of the large injection molding machine, overall downtime is reduced. Our well-thought-out solution saves valuable time.

Available machine sizes of the duo series
Picture shows table of available machine sizes
You have questions about the duo large injection molding machine?

We will be happy to help you with your individual machine and solution concept for your industry.

The duo model range

One machine concept – different models for specific requirements

The duo platform offers a broad range of different models specifically designed to meet the requirements of various applications. Always find the right two-platen injection molding machine for your production.

  • duo fast track: For customers in the USA and Canada: Visit our online stock list and get a quote for quickly available injection molding machines

  • duo combi: The duo combi is the high-performance large-scale multicolor machine. Choose from a wide variety of different injection unit combinations for your multi-shot application.

  • e-duo: With its precise electric injection unit, the e-duo ensures best results – shot by shot.

  • duo speed: The fast duo speed is tailor-made for large-volume containers and similar products with a high flow path/wall thickness ratio.

  • duo tech: The duo tech is the high-performance machine for a wide range of demanding applications.

NEW: duo tech series

We have upgraded our proven duo injection molding machine to the duo tech. While maintaining the footprint of the conventional duo, the duo tech models have a larger mold area. Higher performance of the injection unit and even shorter dry cycle times help increase your output.

Image shows duo tech injection molding machine by ENGEL

Stay on budget – no need to size-up

Don’t overpay for a machine size, that you don’t actually need. With more sizes to choose from, it is easier to find the best fit for your production:

  • New clamping force variants 1100 US, 1300 US, 1750 US, 2200 US and 2700 US tons

  • Even more wide-platen models in sizes 440 US and 550 US tons.

Picture shows large mold area of duo tech two-platen injection molding machine

Higher output thanks to extended tie bar spacing

Larger tie bar distances save time when setting up the machine:

  • Faster tool change

  • Shorter start-up times thanks to ergonomic access to the ejection area and ejector plate

Picture shows front of ENGEL duo tech injection molding machine

Higher output thanks to improved machine performance

We have increased the performance of our duo series:

  • Shorter dry cycle times

  • Up to 25% higher injection and plasticizing performance

Picture shows media plate of the duo tech by ENGEL

Higher output thanks to media plates

Faster and easier mold setups are now standard on our duo tech:

  • Media plates as standard equipment

  • Interfaces for core pulls, hot runner, water and electrics close to the mold

Corresponding Products and Services for the Large Injection Molding Machine
Picture shows injection moulding temperature control by ENGEL

Reduce Energy Costs with Intelligent Temperature Control

You save up to 85% of your energy costs thanks to intelligent temperature difference control instead of rigid flow.

Image shows injection molding automation solution from ENGEL


Expertise in injection molding automation at all levels. From the injection molding machine, to the robot and conveyor belt systems, to third-party peripherals. Everything from a single source.

Image shows plastic components manufactured by ENGEL using the injection molding process

Injection Molding Processes

Thinking ahead in plastics processing. Innovative and resource-saving technologies and processes. For every requirement in modern injection molding.

Image shows application in the automotive & mobility sector

Industry Solutions Automotive & Mobility

With ENGEL, you get a complete solution for your requirements in the automotive industry. From the machine to automation and peripherals to permanent support of your production by our application engineers.

Other Machines for Large Injection Molded Components

All injection molding machines

Discover more
What else you might be interested in

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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