Web Tension & Guiding
Roll Concept becomes the exclusive European distributor of DFE
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Patrick Mercier, Roll Concept’s sales manager explains why the French company chose to distribute DFE’s products in Europe
S
ince the 1990s, Roll Concept has designed and manufactured standard or customised low inertia industrial idler rollers, chill rolls and winding cores/ mandrels, technically and economically defined to answer converters process requirement. Based on a specific Alveolus profile named Alveotube, the wide range of solutions offered by Roll Concept are specially engineered to improve process performance – by reducing web tension on the process – and/or to help to save energy. Like our company, DFE is an expert in web tension. Indeed, Dover Flexo Electronics (DFE) is a recognised leader in tension control solutions, with 49 years’ experience designing and manufacturing load cells, amplifiers, display indicators, closed-loop controllers, pneumatic brakes and idler rolls. Like our products, DFE tension systems deliver improvements in material processing productivity and reliability, helping to reduce waste and operating costs. Industries such as flexible packaging, paper, film, foil and converting are their specialty.”
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Investment in a new tension measurement system often begins with the installation of a Tension Roll transducer or cantilevered Narrow Web transducer. The Tension Roll and Narrow Web both combine a roll shell with dual tension sensors in a robust, shaft-centric design. The roller systems are ordered to spec and require no assembly — just bolt them onto the machine. Tension Rolls are available in 2.25, 3, 4, 5 and 6 inch diameter, from 6 to 120 inches in length. Narrow Web transducers are available in 2.25, 3 and 3.5 inch diameter, from 6 to 20 inches in length. Load ratings from 12 to 400 lbs are available on
both systems. Custom engineered roll diameters, lengths and coatings are available by request. DFE also manufactures Model C cartridge-style tension transducers, considered to be the industry standard in high-sensitivity semiconductor strain- gage load cells. These workhorse tension sensors are available to support live-shaft and dead-shaft idler rolls with a wide variety of mounting styles and load ratings that range from 10 to 800 lbs. The semiconductor strain-gage technology featured in all DFE load cells delivers up to 33x more signal performance than some foil gage alternatives. In combination with the refined digital signal processing techniques used in their amplifiers, indicators and controllers – DFE’s tension systems are capable of delivering an incredibly wide range of sensing performance for a given load rating. This technology advantage provides added flexibility for customers who may need to repurpose their load cells for new applications or evolving job requirements. In 2021, DFE launched the TA500-EIP tension amplifier featuring simultaneous EtherNet/IP, 0-10 VDC and 4-20 mA connectivity for compatibility with current and next-generation PLC systems. In 2023, DFE will launch the TA500-ECAT tension amplifier with EtherCAT protocol support. The turnkey, SteadyWeb 6 digital tension controller delivers precise closed-loop performance with an incredible amount of flexibility and adjustment. SteadyWeb 6 was designed with modularity in mind, providing torque control options for electric and pneumatic brakes, clutches and motor drive systems. All DFE products are manufactured in the USA and backed by an industry-leading five-year tension-free warranty. For all your European needs, feel free to contact us!
16
April 2023
www.convertermag.com
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