Flender is rounding off its range of N-Arpex couplings, first introduced in 2017, with two new designs featuring eight and ten bolting points. N-Arpex now covers a diameter up to 988 mm and a torque up to 2,000,000 Nm. The compact design and enhanced bore capacities also enable a leap in size. A smaller coupling transmits a higher torque compared to the predecessor model Arpex. Flender thus further optimises the price-performance ratio. The torsionally rigid all-steel disc coupling is suitable for use in drive applications including pumps, fans, compressors, generators, turbines, and paper and printing machines.
A new, more compact Flender conical bolt connection for the plate packs enable quick and easy installation of the N-Arpex couplings, especially in high torque ranges. This new addition enhances the power density of the N-Arpex series. The revised component first appeared in 2017 with the ARN-6 type. Its compact design and enhanced bore capacities already ensured an optimal ratio between torque and use of materials. The N-Arpex thus focusses even more sharply on the price-performance ratio.
With the two new N-Arpex couplings, Flender has introduced a modular system which increases the number of available types as well as simultaneously reducing the number of components required. The three standard series of the predecessor Arpex merge into one N-Arpex series. This standardization simplifies storage, making the couplings more readily available and reducing spare parts complexity for the customer.
The new series of couplings has also been designed for use in potentially explosive environments as defined in directive 2014/34/EU and fulfil the requirements of API610/ISO13709 and API671/ISO10441. N-Arpex all-steel couplings are designed as standard for use at very low temperatures down to -50 degrees Celsius. With these all-steel couplings, transmission of torque between the machine shafts accompanied by displacement compensation is backlash-free, torsionally rigid and flexible. This enables them to simultaneously compensate for axial, angular and radial offset. The N-Arpex coupling plate packs are made of stainless spring steel, are not subject to wear and are therefore maintenance‑free.
Measurement, Instrumentation, Control & Automation News Plant Construction, Engineering & Components
Industry digitization with 5G campus networks
Partnership for smart production
With its campus networks, Deutsche Telekom offers an infrastructure for the smart factory of tomorrow. Together with partners from industry, Europe’s largest telecommunications company wants to further expand its 5G ecosystem for industry. In process automation, Deutsche Telekom is now cooperating with Endress + Hauser.
The aim of the cooperation is to develop joint offers in the field of measurement and automation technology for the process industry. This involves the integration of measuring instruments and accessories into the next generation of mobile communication networks as well as digital services based on them. Both companies have signed a corresponding memorandum of understanding and are now working on a coordinated timetable.
Measuring instruments with mobile communication module
Endress + Hauser is one of the first manufacturers to equip its field devices with mobile communication modules and to connect existing installations to 5G networks via newly developed Hart gateways. This enables a large number of instruments to transmit a wealth of process and device data in parallel and in real time. These can, for example, be used in cloud applications for predictive maintenance of process plants.
Campus networks open second signal path
“In addition to the actual measured values, our instruments record a wealth of information from the process and about the sensor. 5G campus networks open up a second signal path that is independent of the plant’s control system and thus make it possible to tap this potential. This will enable us to link value chains more closely across company boundaries and make industrial processes more efficient.”
Matthias Altendorf, CEO of Endress + Hauser
Strong partners for smart production
“Building a complete 5G ecosystem for industry will accelerate the pace of digitalization in industry,” explains Claudia Nemat, member of the Deutsche Telekom Board of Management, Technology and Innovation. “We look forward to working with renowned and experienced partners.” In addition to the partnership with network supplier Ericsson, the telecommunications company now also cooperates with E&K Automation, a manufacturer of driverless transport systems, and Konica Minolta, which offers augmented reality glasses, among other products.
For the polymers, chemical, pharma and food industry
Next Generation of High Accuracy Vibratory Feeding Technology
Coperion K-Tron is proud to announce a completely new K3 line of vibratory feeders for dry bulk solids. The innovative new feeder design features a unique, patent-pending drive system combined with an advanced control package. The new K3 vibratory feeder is able to achieve accuracies averaging 35% better over traditional vibratory technologies. This revolutionary new generation of Coperion K-Tron loss-in-weight vibratory feeders offers gentle handling of the bulk material, higher accuracy and faster product changeover, resulting in less product waste, less downtime and better end product quality as well as improved sustainability.
New technology brings significant advantages
These advantages are possible thanks to groundbreaking new technology. The key to achieving high accuracy is the ability to deliver a continuous, even product discharge with minimal pulsations. The new K3 vibratory drive is able to do this thanks to a completely new shock absorber design. Conventional vibratory feeders use rubber or spring shock absorbers, which allow movement of the drive in all directions, resulting in rotational motion. In contrast to these conventional shock absorbers, the new K3 line uses a unique flexible pendulum technology which provides shock absorption only parallel to the desired direction of motion, eliminating rotational movement. This parallel motion ensures an even material flow of the product along the entire length of the tray.
The advanced control system and feeder electronics include internal sensors which measure acceleration, displacement, load, current and temperature at rates of up to 25,000 times per second. The fast-acting controller then adjusts the vibratory drive signal to maintain clean sinusoidal displacement for optimal mass flow. The combination of this unique drive with the Coperion K-Tron SmartConnex control system also results in extremely low energy consumption as compared to other feeding technologies. Power consumption can be as low as 20 Watts for feed rates as high as 6,000 kg/h, thus making it ideal for improved production sustainability and minimal heat dissipation.
The typical feeder package consists of a feed hopper, vibratory tray and vibratory drive mounted on a weighing system featuring patented, high accuracy Smart Force Transducer weighing technology and combined with SmartConnex controls. The mechanical package is modular in design, and versatile in that it can accommodate custom tray configurations and lengths, offering the user more flexibility. A special quick-release clamp mechanism on the feeder tray allows for quick product changeover. The absence of mechanical wear parts results in lower maintenance requirements and ensures gentle handling of the bulk material. In addition to the standard design, a line of hygienic, easy-clean configurations is also available. These include a hygienic silicone cover to enclose the complete drive assembly, making it also suitable for food and pharmaceutical applications.
Ideal for gentle handling of difficult bulk materials
Vibratory feeders are ideal for the gentle handling of a wide variety of materials, including friable products, abrasive products, products with non-uniform shapes, and glass fibers. They are ideally suited to applications such as the high accuracy feeding of finished food products to packaging lines, uncoated tablets to coating lines, as well as difficult feeding of pellets or regrind to plastic extrusion lines, for example in plastic recycling applications.. Vibratory feeders can often be a viable alternative to screw feeders for difficult materials, where gentle vibratory feeding may allow feeding without build-up which can occur on screws and screw tubes.
Coperion at the K 2019: Hall 14, Stand 14B19