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Contact:  info@dfe.com 
(603) 332-6150

(ROCHESTER, NH, USA--May 18, 2001)  Web machine builders, press builders and converters looking to improve a machine's performance have for a long-time had the option of adding tension transducers or load cells to existing idler rolls in the web path.  The tension-sensing rolls in conjunction with indication or control electronics allow a machine operator greater control of web tension in the process and therefore greater control of finished roll and output quality.
 

While the addition of tension transducers to a machine's web path is usually a sensible, low-cost upgrade, and nothing new to industry--DFE recently shipped their 40,000th Model C tension transducer--the engineering and machining required to prep both sides of the machine frame for a fresh roll-shaft transducer installation is not always simple or convenient.  That's why Dover Flexo Electronics, Inc (DFE), at the suggestion of customers, has added two new, optional mounting styles to the Model C line of Tension Transducers, both of which can take advantage of existing (in the case of a retrofit) standard-size bore holes in a machine frame.

The space-saving Through-Frame (TF) mounting option is designed of aluminum for use with the Model C2 Dead-shaft transducer.  A transducer housing sleeve lets the base of the transducer fit neatly into a standard 72 mm (2.835") bored hole in the machine wall. The base is then clampled outside the wall with a clamping-flange The TF option allows the idler-shaft end to fit closer to the machine frame and offers greater roll length accomodation than a standard transducer mounting style. (See photo.)
 
 

The Piloted Flange (PFL) bracket, an OEM design, is a stainless steel mounting option for both live and dead-shaft size C0 and C2 transducers.  A pilot step on the circular PFL mounting base fits exactly into a standard pilot-flange bearing-mount footprint on the machine frame. The mount footprint of the transducer's PFL option is the same as for industry-standard RFC piloted flange type bearings with a 3.0" pilot hole and a 3.625" diameter 4-hole mounting bolt pattern. This bearing style will carry 7/8", 15/16", 1", and 25mm shaft diameters.

The PB Mount (Pillow Block Mount) for DFE's Model C tension transducer has been improved upon since earlier versions.  The new PB Mount now has an adjustable clamping design that allows the transducer to be re-oriented in the mount as the user desires.  Force direction can be changed by simply loosening the clamp, rotating the transducer, and re-tightening. 

What the PB offers:

• Mount allows easy change of force direction
• Standard footprint matches DFE's previous PB mounting style
• Model C transducers can be moved without changing mounting hardware

For more product information on the Model C tension transducers, which these mounting styles are available for, click here.