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Keywords of this article:  injection molding 
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packaging 
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injection mold 
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With no tie-bars to hamper the space, mold mounting platens on Engel victory injection molding machines can be used to the hilt.
With no tie-bars to hamper the space, mold mounting platens on Engel victory injection molding machines can be used to the hilt.
Photo: 1234

Engel Austria will appear at Saudi Plastics & Petrochem and Saudi Print & Pack (Saudi PPPP) 2018 with an information stand to present innovative products and applications for the construction, logistics and packaging sectors.

Investment was halted in many areas following the collapse of the oil price in 2014. However, new orders and fresh growth are emerging as the year comes to a close, according to the company.

"The worst is over," said Andreas Leitner, Sales Director Middle East at Engel. "We are holding more discussions with customers over new product ideas that will actively assist with local value creation and stimulate the economy. Saudi PPPP 2018 will give this development greater impetus."

In the construction industry, for example, electrofusion fittings for use in gas and water networks are among the innovative products driving sales for processing firms. Typical of this fitting type are integrated heating elements; after being installed in a pipeline system, they are temporarily charged with electricity to materially bond the pipe ends. This results in highly secure and durable connections that do not require seals.

To manufacture electrofusion fittings, heating elements are overmolded with thermoplastics, which generally requires two injection molding steps. This means inserts and pre-molded parts must be handled carefully; moreover, the molds are very large owing to the complex component geometry.

To facilitate efficient and cost-effective production, Engel's tie-bar-less injection molding machines of the victory series with up to 5,000kN clamping forces are advised for such applications.

The victory machines are fitted with the ecodrive servohydraulic as standard. This cuts the energy requirement by 30-70% in comparison with conventional hydraulic injection molding machines, depending on the machine size and application.

The trend towards sustainable products and manufacturing concepts is especially clear in the logistics field, where plastics and petrochemicals companies have redoubled their efforts to dispense entirely with wooden pallets in the region.

By contrast, plastic pallets require no environmentally harmful chemicals; they are neither hygroscopic nor flammable, have no sharp edges and cannot splinter, which makes for simplified customs clearance in many countries.

To make these pallets lighter than wooden pallets – as well as more stable and rigid – Engel suggested its ENGEL duo double-platen machines that feature high box power output and high quality screws.

As a producer of system solutions, Engel has the appropriate robots for pallet production in its range. With its demolding stroke of 3,000mm and range of 3,550mm, the viper 120 has a load-bearing capacity of 120kg.

The packaging sector was least affected by Saudi Arabia’s economic crisis, yet new technologies are accelerating market developments in this area as well. The focus is on continued optimization of production efficiency in the manufacture of beverage caps as well as thin-wall packaging for the food industry.

Engel will use sample parts and videos to illustrate the strong potential of integrated system solutions. For example, an e-cap 380 injection molding machine with a 96-cavity mold is used to produce 26mm caps of high density polyethylene (HDPE), including tamper band, in a cycle time of under 2.5s and with total energy consumption of less than 0.7kWh/kg.

The e-cap injection molding machine tailored to the needs of caps production, accounts for just 0.42kWh/kg of the total energy consumption of 0.7kWh/kg. "Now that beverage caps have reached their light-weighting minimum in terms of geometry, they are placing greater demands than ever on the precision and repeatability of injection molding machines," pointed out Leitner.

More and more food packaging is being locally produced in Saudi Arabia. Lightweight food containers are driving the trend, which stems from a desire to be more independent of imports.

For the manufacture of thin-wall containers, Engel highlights its all-electric e-motion injection molding machine, which offers cycle times of well under 3s and injection speeds in excess of 500mm per second. Together with In-mold Labeling (IML) solutions, it is possible to produce highly decorative and ready-to-use packaging in a single injection molding step.

Saudi PPPP 2018 will be held from January 21-24 in Riyadh, Saudi Arabia.

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