SOURCE: Vishay Precision Group

Vishay Precision Group

March 02, 2011 11:00 ET

VPG's BLH-Nobel Weighing Systems Introduces New-Generation Roll Force Measurement System for Rolling Mill Applications

MALVERN, PA--(Marketwire - March 2, 2011) - Vishay Precision Group, Inc. (NYSE: VPG) today announced that its VPG Process Weighing division has introduced a new-generation roll force measurement system for use in hot and cold rolling mill applications with its BLH-Nobel Weighing Systems G4 family of multi-channel weight/force indicators.

Designed for new and existing rolling mills, the RFS-4 system provides the mill operator with continuous monitoring and display of the roll separating force and differential forces indicating balance. In addition, the system automatically cancels temperature-induced drift during the period that the mill is empty and provides local and remote indications if metal is accidentally introduced into the mill or the mill becomes overloaded.

Easy to set up and use, the new RFS-4 measures rolling mill separation forces accurately and conveniently, and with a high degree of repeatability, using extensometers on the mill posts or load cells in the screw to provide an electrical signal proportional to the mill separation force. A single G4 instrument with customized software reads signals from both sides of the mill and amplifies them.

In the rare event of an extensometer failure during rolling operation, system software highlights the failing channel and electronically compensates for the loss until the unit is replaced, eliminating lost production time.

Compared with the previous-generation system, the new RFS-4 requires only one external G4 signal conditioning unit. The G4 has up to eight channels to provide accurate and reliable information on sum (total), difference (work-drive), work total, and drive total values that can be displayed on the graphic color display. Analog signal outputs for each value are available on the read panel rack terminals, with separate relay outputs provided for "Metal in the Mill" and "Mill Overload" conditions.

Further information about the RFS-4 roll measurement system and other VPG Processing Weighing products is available at

About VPG Process Weighing
VPG Process Weighing is a division of Vishay Precision Group and includes products from BLH and Nobel Weighing Systems, providers of process weighing and force measurement systems for decades. We use our advanced Micro-Measurements strain gage technology and foil resistor products and know-how in all our transducers and instruments. Our experience and design capabilities make it possible to provide a wide range of standard and custom-made products and solutions. We design and manufacture load cells, web tension blocks, instruments, hardware and software, and complete systems for weighing and force measurement.

About Vishay Precision Group
Vishay Precision Group produces sensors based on precision resistive foil technology, and sensor-based systems. We provide vertically integrated products and solutions for multiple growing markets in the areas of stress, force, weight, pressure and current measurements. As a spin-off from Vishay Intertechnology, our decades-long track record encompasses innovations in foil precision resistors, which we invented, current sensors, and strain gages, which have served as a foundation for our more recent expansion into strain gage instrumentation, load cells and transducers, weighing modules and complete systems for process control and on-board weighing. Vishay Precision Group may be found on the Internet at

Editor resources:
Link to product datasheet: (RFS-4)

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Contact Information

  • Agency Contact:
    Rae Morrow
    Wall Street Communications
    Tel: +1 772-626-7722
    Email Contact

    Vishay Precision Group Contact:
    Marti Spalding
    Director, Global MarCom
    Tel: +1 919-374-5515
    Email Contact