The development of the first strip thickness gauge worldwide, that could measure the thickness of the strip during the rolling process in cold mills with an accuracy of µm, was the start of our company in 1963.
Vollmer America
Process Data Acquisition & Analysis
VRecoS
VRecoS is a system for the visualisation and recording of 4 measurement parameters, offering no statistical function (for which VGraph is available). With its neat protocols and practical print functions, it is the ideal instrument for the recording of the measurement results.
VRecoS – Leaflet for download (German/English)
VGraph
VGraph records up to 16 measurement parameters in a production unit in parallel (such as strip thickness, strip width, strip speed, roll force, temperature, …), evaluating them statistically.
Reports available from VGraph:
- Variable documentations (such as a quality protocol for each manufactured coil).
- Decision-making support for the use of a manufactured coil (if the strip beginning is shortened by another 2 m and the strip end by 3 m, for example, the Cpk value reaches a level that allows the coil to be supplied to a more demanding customer).
- Diagnostic instruments, showing the strengths and weaknesses of a production unit, to recognise the suitable upgrade steps, if necessary.
- The VGraph office version offers a product that provides an insight into the production unit or the access to reports that have been made on remote machine processors over standard TCP/IP networks.
VGraph – Leaflet for download (German/English)
Signal Analysis by FFT (Fast Fourier Transformation)
The FFT analysis option offers a product showing recurrent periodical strip thickness variations both during the strip thickness measurement (on-line, 2D) and after completion of the coil (off-line, 3D) so that our copper customers, rolling material for the coaxial cable production, will recognise which coils can be applied for which coaxial cable standards.
Our steel customers use the FFT instrument for preventive maintenance and fault finding in the mill (the wave length of the recurrent strip thickness variation indicates which roller, which roll or which bearing requires maintenance).
FFT Analysis – Leaflet for download
VGraph – Leaflet for download (German/English)
What's New
Release Update for the VIP 08
Please download here the latest information release for the VIP 08 No-Contact Shape Measurement. VIP 08 Non-contact Measurement Update May 2011
VIP 08 Flatness Measurement System
While the strip thickness tolerances were a significant criterion for the quality assessment of strip material in the eighties and nineties, significant improvements in controls and automation have made good thickness control a given among suppliers.
First Isotope Thickness Gauge Application in Mexico
During this past fall, we installed our first two – Model A3000 Isotope Thickness Gauges in Mexico. The application was for stainless steel on a heavy-duty reversing mill with 24/7 operation.
News & Events
AISTECH 2012 Iron & Steel Technology Conference and Exposition
read more »Release Update for the VIP 08
Please download here the latest information release for the VIP 08 No-Contact Shape Measurement. VIP 08 Non-contact Measurement Update May 2011
BFI Article shows new design for shape roll measurement
The well-proven BFI version shape measurement roll has undergone a design change that improves its ability to measure the tensions profile on flat product without marking the strip. The detectors have been redesigned to fit into the roll while leaving the surface of the roll completely clear of machined marks. This eliminates the former problems associated with the axially installed sensors.