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Engel Constructs the Largest Injection Molding Machine in the World

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Megatrends Also Call for Mega Injection Molding Machines 

Engel is not least familiar with the construction of such large machines and has already installed several injection molding machines with clamping forces of 74,400 kN (approx. 8,360 US tons) for users, according to the company. Despite their dimensions, these large machines are characterized by high precision, as Engel emphasizes. With options such as injection embossing, the component dimensions can be brought to an accuracy of a few hundredths of a millimeter, which represents a component precision that can be compared with the "thickness" of a sheet of paper. This sensitivity combined with enormous force also opens up new possibilities in precision lightweight construction and functional integration in terms of large-format injection molded parts.megatrends such as electromobility, autonomous driving, platform consolidation and CO₂ reduction targets are driving this development and thus the demand for such large injection molding machines. Think of battery housings, underbody panels or hybrid interior door structures for car manufacturing, for example, which can be produced more cost-effectively in this way.

Large Plastic Components Are Not Only in Demand in the Automotive Sector 

Large machines also open up new application potential in the field of technical injection molding, as Engel explains further. The machine manufacturer has therefore already successfully established machines with clamping forces of around 11,000 tons on the market - including for logistics and infrastructure products. These include transport containers for the disposal of e-mobility batteries, large-volume seepage boxes for rainwater management and water tanks with mold surfaces of almost six square meters (approx. 65 ft²) and shot weights of up to 109 kilograms (approx. 240 lb). Plastic offers clear advantages over concrete, especially for large water tanks: the lightweight polymer components are easier to transport and install, require less infrastructure and react more flexibly to earth movements, whereas concrete structures can tend to crack under ground movements. At the same time, they help municipalities and companies to adapt more easily to heavy rainfall events and legal requirements for water storage.

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