This Engel ES650H 200W-20 is a two-component injection molding machine — sometimes referred to as a two-shot or 2K molding machine — used to produce plastic parts that incorporate two different materials or colours within a single production cycle. Engel is a well-established Austrian manufacturer recognised globally for its range of hydraulic, electric, and hybrid injection molding equipment, supplying industries such as automotive, medical technology, packaging, and consumer goods.
Built in 2004 and located in Germany, this used machine is configured as a 2K (two-component) system, meaning it is equipped with two separate injection units capable of injecting different materials into the same mold in sequence or simultaneously. The clamping unit delivers a clamping force of 2,000 kN and accepts molds between platen dimensions of 920 x 760 mm (H x V), with a minimum mold installation height of 500 mm and a maximum daylight between platens of 1,150 mm. The opening stroke is 750 mm, and the machine can accommodate molds weighing up to 3,000 kg — rated at 1,500 kg per side. The ejector system provides a stroke of 150 mm and a force of 80 kN, supported by three core pulls on the ejector side and a centering ring diameter of 200 mm on that side.
The primary injection unit (650H) is fitted with a 40 mm screw with an L/D ratio of 20, delivering a swept shot volume of 251 ccm and a maximum shot weight of 216 g in polystyrene. Injection pressure reaches 1,946 bar, and screw speed is rated at 290 rpm. The nozzle radius is 15 mm. The secondary injection unit (200W) carries a smaller 25 mm screw with an L/D ratio of 24, offering a shot volume of 69 ccm and a shot weight of 60 g in polystyrene. This unit operates at a higher injection pressure of 2,089 bar and a screw speed of 480 rpm, making it well suited to injecting smaller volumes of a secondary material with precision.
Automation is provided by an integrated ERC 23/1-E linear robot system, with axis strokes of 500 mm in X, 1,000 mm in Y, and 1,600 mm in Z. The machine also includes a 16-zone hot runner control system, along with a printer interface and process control capability. Together, these features make this a comprehensively equipped 2K injection molding cell suited to multi-material or multi-colour component production.
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