From mixing to extrusion, calendering, cutting and more, electric motors are critical at almost every step of rubber manufacturing. As motor technology has advanced rapidly over the past decade, latest generation high power density electric motors overcome many of the limitations of older models. They offer advantages in terms of size, precision and other critical areas;
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Carbon black is widely used throughout the rubber industry. Understanding the properties of carbon black dust and the specific
challenges these properties create for dust control is crucial for designing and implementing an effective dust collection system. A well designed dust collection system will ensure compliance with OSHA regulations and NFPA standards for carbon black dust safety.
The operation of injection molding machines is often complex and requires great technical expertise during the various process sequences. In smartOperation, KraussMaffei now offers a digital service product that enables defect-free machine operation, increases process stability and thus boosts efficiency in production. In particular, machine operators without in-depth prior knowledge of injection molding technology benefit from the advantages of smartOperation.
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The demand for performance and consistency of elastomer based compounds is growing quickly in all fields (tire, technical rubber goods, cables). Specifications regarding physical, mechanical and chemical properties, as well as “visual aspects” properties of the finished products are becoming more and more strict.
During compound production, all operations are involved, from the weighing to the storage of the semi-finished mixed compounds. The mixing operation plays a very important role, since it is the step where all ingredients are incorporated, dispersed and distributed.
Comerio Ercole recently introduced, within its products portfolio, a digital platform named Hercules40 which is aimed at supplying its clients with a data driven analysis tool for continuous improvement of the production process, including energy consumption optimization, as well as value added after sales service.
Due to the advanced techniques of big data analysis and machine learning, process and instrumentation, the raw data present within Comerio Ercole machines and plants are transformed into smart data that become part of the strategic information available to plant operation and maintenance management through a simple and intuitive application.
The editors of Rubber World Magazine have compiled a classified list of rubber machinery and equipment with supplier companies is followed by directories of the companies that supply process machinery to the rubber industry, including both new and used/rebuilt equipment. Company listings include addresses and complete contact information.
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Davis-Standard introduced a new compact extruder engineered for extrusion coating applications – the CHP. The machine’s sleek design offers a smaller footprint and lighter weight to allow for easier addition to an existing carriage or platform structure. This provides processors with a space-saving replacement or coextrusion addition for increasing outputs and line speed
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Guill Tool introduces Series 824, a co-extrusion crosshead designed for irrigation tubing with an emitter tool. Manufactured from stainless steel, this new crosshead features balanced flow design with spiral technology that improves flow characteristics at all extruder speeds. Dual feed ports provide concentric compound flow, while the splits flow from one extruder to feed the inside and outside layers via a manifold assembly. Series 824 is adaptable to all popular extruders on the market currently
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Guill Tool announces a new design for its high-production rotary models, both inline and crosshead style. A 2X increase in speed, with models running to 1000 RPM depending on the application, are now available in the Guill line of patented rotating tip & die designs. By rotating the tooling in relation to the material flow, a rotary head increases the wall strength of an extrusion, thereby allowing a thinner wall with less material and the corresponding cost savings for the user. Typical applications for rotary heads include medical and multi-lumen tubing plus various high-end extrusions with interlocking layer or multiple striping requirements.
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Part 1 of this contribution, published in the May 2021 edition of Rubber World, investigated a real manufacturer’s process that was set to produce medical tubing. It was found (through trials at the extruder, then through simulations) that the equipment available to the manufacturer was too large for the relatively low output that was required for this project, and consequently the polymer was degrading on the screw surface. It was ultimately determined through simulation that a smaller extruder, with a screw optimized for the low rate, would work better.
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