Energy in Injection Moulding

Nowadays identifying the environmental footprint of products and processes is of great importance to determine if they are viable in the long term, or whether they will have negative impacts to human health, non-renewable resources, animals, etc. One way to assess a process is to identify the energy sources and energy amounts that are required to fulfil this. As a very basic definition, energy can be defined as the property that must be transferred to an object to perform work. This means that for an injection machine to function adequately, electrical energy must be transformed into heat and mechanical energies. In the past few years a lot of attention has been given to determine the energy associated with all the various steps in injection moulding. The usual trend observed is that melting of the polymer and clamping of the mould are the steps with the higher energetic contribution.

Table 1. Energy breakdown in percentages for injection moulding of different products (Thiriez, 2006).

Product Melting Injection Clamping Ejector Idle Heaters Cycle time [s]
Dairy container 53% 8% 27% 0% 0% 15% 6.45
Medical Syring 46% 5% 8% 2% 29% 15% 23.1
Pail 50% 10% 13% 0% 15% 11% 18.25
Closure 66% 7% 12% 3% 0% 12% 16.75


The energy can be calculated directly from the monitoring of the equipment’s electrical signal, or alternatively from the cavity’s pressure and temperature information. One of PREVIEW’s main advantages is the fact that real-time data can be obtained directly from the mould, and hence can provide essential information for the calculation of energy consumption estimates.


Thiriez, A. (2006, May). An Environmental Analysis of Injection Moulding. Thesis submitted for the degree of Master of Science in Mechanical Engineering. Massachusetts, Cambridge, United States of America: Massachusetts Institute of Technology.


PREVIEW Article in Spanish Newspapers (October 2016)

Plastia submitted an article for two Spanish newspapers.

The first was La Vanguardia which included a full page article and a digital edition which can be found at the link below, and the second was El Economista.

For both of these news articles a series of preliminary meetings were held to gather information about the project.

As a result of these publications, interest in the project has increased and various companies have contacted Plastia for more information.

PREVIEW Disseminated at EAI ADHOCNETS (September 2016)

UBER gave a presentation about the network protocol simulation environments developed for PREVIEW at the EAI ADHOCNETS conference in Canada on 26th to 27th September.

This major annual international event covers a variety of paradigms such as mobile and ad hoc networks, wireless sensor networks with applications ranging from commercial to military communication networks.  Over the last decade ad hoc networking has attracted a lot of attention from both the research community and private industry.

Around 7 people participated in a discussion following the presentation which was attended by machine manufacturers, material suppliers, end-users and research organisations.

UBER Attends IEEE LCN Conference (November 2016)

UBER used the IEE LCN conference to present ‘Research on wireless protocol design’ to  around 200 participants comprising university researchers, corporate researchers and industry representatives.

The event which was held in Dubai from 6th to 10th November is the premier conference on theoretical and practical aspects of computer networking.  LCN is highly interactive and enables an effective interchange of results and ideas among researchers, users and project developers.

Following the presentation around 10 people took part in a discussion.

Proform at Fachpack (September 2016)

Proform attracted a number of visitors to their stand at Fachpack 2016.  This is the 7th year running that Proform has attended this event and due to its proximity to their premises is a useful forum for attracting local customers.

The European trade fair for packaging, technology, processing and logistics took place in Nurenberg, Germany on 29th September to 1st October.  Around 1,544 exhibitors used the event to offer every aspect of packaging for industry and consumer goods to over 41,000 visitors.

A variety of dissemination material was used to promote the project which included the project flyer and trifold brochure.