STM - Shapemeter roll for strip flatness measurement

Metal strip flatness measurement system - Sectional strip tension meter - Shapemeter roll (Shape-roll, Measuring-roll). Type: STM

STM 800x650

Shapemeter roll - sectional strip tension meter - is designed for evaluating of metal strip flatness in cold rolling mills. The principle of the flatness evaluation is based on measuring of pressure forces of a metal strip in the multiple zones of the measuring roll deflector. A visual unit displays measured flatness and tensions across the strip in real time on monitor in the form of a column and flat graphical mapping.


  • flatness display in I-units
  • strip tension distribution display in Newtons
  • measuring the flatness and the spread of the tensile force from zero speed of the strip
  • measuring the total tensile force of the strip
  • no mark on the strip thanks to small bending angle 5°-10°
  • affordably priced measuring equipment
  • simple construction for maintenance and calibration


  • custom built measuring roll with sensitive measuring zones
  • industrial PC with visualisation and archiving software
  • data output: PROFIBUS or per customer requirement
  • OEM version without Industrial PC is possible
Basic technical data:
Parameter Value
Measurement error <0,15% of full range
Strip temperature max. 180°C
Width of each zone 33,3 mm
Max. vertical force each zone 14 000 N
Environmental protection of sensors IP68

Attached videos

STM-1200 on electrical seel strip in VIZ-STEEL Russia (NLMK group):

STM-400 on lead strip in Johnson Controls, Inc. Mexico:

Reference letter

Attached images

  • STM-1200 VIZ Steel Russia
  • STM-1200 VIZ Steel Russia with tablet
  • STM-1200 monitor
  • STM-400 on lead strip - Johnson Controls, Inc. Mexico
  • STM-1860 on tension leveler TYASA Mexico
  • Shapemeter_PC_SW
  • Flatness report_example