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
Control Module For Electromechanical Mill Screwdown
Model VPI/PLC Feedback Controller
With small mills with electromechanical screwdown, a modification to servohydraulic screwdown is often not necessary or is too expensive.
The mill operator must observe the actual strip thickness values on the exit side of the mill and reposition the mill screwdown manually as deviation limits are exceeded until the actual strip thickness value is back within the required tolerance limits.
The operator´s attention is permanently demanded and under strain. The simple Vollmer controller (VPI) serves this purpose well, relieving the operator and performing consistently. The VPI reads the actual strip thickness values of the thickness gauge on the exit side of the mill continuously and repositions the mill screwdown if a control limit is approached.
What's New
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.
Quality and Yield Optimization on Cold Rolling Mills
In order to accommodate for the high demand in accuracy, quality and yield, it is essential to optimize the existing operating equipment. In the past Vollmer has supplied and been known for their high performance thickness gauges in conjunction with the automation of the screwdown system.
News & Events
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.