Data sheet VBM

Product catalog summary

Overview: The document provides technical specifications and features of the VBM series contact gauges used for measuring metal strip thickness. These gauges are designed for high precision and reliability in industrial settings.

Application: The VBM contact gauges are specifically used for measuring the thickness of metal strips.

Function: The gauges utilize two transducers that contact the upper and lower sides of the strip. The sum of the individual measurements provides the absolute strip thickness. The system is designed to function accurately even at high strip speeds and with oiled strips.

Advantages:

Direct and absolute measurement regardless of the alloy.
Precision up to one micrometer per millimeter of strip thickness.
Reliable results even with oiled strips.

Type Series and Process Parameters:

Material: Metal strip.
Maximal strip temperature: 120 °C (up to 200 °C with reduced accuracy).
Maximal strip speed: 500 to 800 m/min depending on the model.

Measurement Parameters:

Measurement range varies by model, with a maximum of 9.0 mm with reduced accuracy.
Measurement resolution: 0.1 µm.
Measurement accuracy: ± 0.1% of nominal value, but not better than ± 0.001 mm.
Sampling rate: 1 kHz.

Dimensions:

Width, height, and depth vary by model, with specific dimensions provided for installation space and positioning.

Connection Data and Environment:

Interfaces include PROFINET, PROFIBUS DP, TCP/IP, and hardware options.
Supply voltage varies with manual and motorized positioning options.
Protection class: IP64 for gauge head, IP55 for pneumatic and control cabinets.
Operating environment: 5 – 50 °C for gauge head and pneumatic cabinet, 5 – 35 °C for control cabinet.

Options:

Motorized positioning with accuracy of ± 1 mm.
Gauge head heating with built-in heating elements and temperature sensor.
Automatic calibration and additional modules for specific models.
Further options include Automatic Gauge Control (AGC), data recording, statistical evaluation, and pass schedule store.

Catalog excerpts

Two transducers contact the upper and lower side of the strip, the sum of the individual measurements is the absolute strip thickness. In complex measuring heads, in some cases with cardanic suspension, integrated heaters, pivot bearings and many other functions. This simple measurement principle is transformed into a high-precision measuring machine that reliably measures the strip thickness in the mill even at high strip speeds. Direct, absolute measurement irrespective of the alloy Precision up to one micrometer per millimeter of strip thickness Correct results even with oiled strip

Open the catalog to page 1

TYPE SERIES PROCESS PARAMETERS Material to be measured metal strip Maximal strip temperature Maximal strip speed 120 °C (up to 200 °C with reduced accuracy) 500 0.1 – 4.0 (up to 9.0 with reduced accuracy) Measurement throat depth (- 20 mm = max. measurement depth) Maximal pass line variation during measurement strip guiding rolls for fixing the pass line within the scope of supply MEASUREMENT PARAMETERS Measurement range Measurement resolution Measurement accuracy Ti ≥ 10 ms, measurement insert material: diamond, ambient temperature > 18 °C, at strip temperatures > 40 °C only with gauge head...

Open the catalog to page 2

All Friedrich Vollmer Feinmessgerätebau GmbH catalogs and technical brochures

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

Brand list