TECHNOLOGY | MATERIALS HANDLING


impurities,” said Marco Masiero, R&D and Test Extrusion Manager at Bausano. “In this context, Bausano positions itself as a strategic partner, able to guide companies through this transition.”


IMAGE: BAUSANO


Above: Bausano’s E-GO R series of single-screw extruders has tailored feeding and dosing systems, which are designed to deal with recycled polyolefin materials


providing a broad feed rate range.” Another example of machine manufacturers


Right:


Hapman’s PosiPro dosing feeder,


designed for handling difficult dry materials. Its features include independent motor controls and robust agitation systems


tweaking their offerings for recyclate demands is the recent expansion of Bausano’s E-GO R series, an advanced line of single-screw extruders specifically designed for recycling polyolefins. With L/D ratios ranging from 45/37, 60/44, and 90/44 to larger sizes such as 105/44, 125/44, 160/47, 180/37, 180/50, and up to 210/37 L/D, the latest generation of extruders can process up to 1,500– 1,800 kg/h of non-free-flowing materials and 1,700–2,000 kg/h of free-flowing materials, ensuring high efficiency even with demanding input streams. A major advancement in the new model lies in the tailored feeding and dosing systems, which are designed based on the charac- teristics of the material. The dosing solution for non-free flowing materials features a dual-hopper design; one offering volumetric feeding via a flat-bottom configuration to ensure steady input and the other introducing forced feeding. This approach improves the consistency of the melt and enhances throughput efficiency. E-GO R extruders are also ideal for recycling lightweight materials with a moisture content of 5–6%, as a double degassing system means residual moisture and volatile substances are removed, preventing defects like air bubbles in the pellets. “To meet the goals of the PPWR


[Packaging and Packaging Waste Regulation], industry players are required to invest in efficient solutions capable of reintegrating highly contaminated plastic materials into the production cycle, often characterised by high levels of moisture and post-washing


20 COMPOUNDING WORLD | July 2025


Bulk handling Coperion says when it comes to powder or pellets, a reliable and cost-effective bulk material handling system is essential, but this requires a comprehen- sive understanding of the complex behaviour of the materials in use. At this year’s Chinaplas exhibition in Shenzhen, the company introduced its ProRate Plus feeder line which ensures high accuracy and reliability in loss-in-weight feeding processes. The continuous gravimetric feeder features a space-saving trapezoidal shape which allows up to six feeders to be grouped around an extruder inlet within a 1.5 m radius. Three single screw feeder models, Plus-S, Plus-M, and Plus-L, along with the Plus-MT twin screw model, cover a wide range of throughputs and bulk materials at feed rates from 3.3 up to 4,800 dm³/h, so a feeding system with six ProRate Plus-L feeders can feed up to 28.8 m³/h on a footprint of only 7 m² . Coperion also displayed a high-accuracy K-Tron


K2-ML-D5-T35 gravimetric feeder with ActiFlow smart bulk solid activator and EPC (Electronic Pressure Compensation) equipped with a 2415 vacuum receiver. The smart flow aid applies gentle vibrations to the hopper wall, with the amplitude and frequency levels adjusted via controller. Earlier this year, Coperion K-Tron announced an


expansion of its facility in Niederlenz, Switzerland, which will allow it to conduct more comprehensive testing to help pinpoint any potential issues before a customer commits to a purchase. It currently performs an average of 150 tests per year in Niederlenz, using a variety of raw materials including pellets, granulates, powders, and flakes. “Coperion is confident that this investment will further strength- en our position as a leading


provider of material handling solutions and contribute to our ongoing growth and success,” said general manager Michael Reinhard. Hapman, a specialist in custom


bulk material handling equipment based in Michigan, US, has introduced the PosiPro dosing feeder, which has been specifically designed to tackle difficult dry materials. Its features, including independent motor controls and robust agitation systems, ensure consistent material


www.compoundingworld.com


IMAGE: HAPMAN


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