Milling speed ratio

Cold rolling, forming and reliably controlling the process

Looking for an afordable alternative for a degree of stretch control or speed ratio measurement? The measurement device should be non-contact, maintenance-free and permanently accurate? Do you have large variations in the condition of your rolled surfaces. Does your machine roll a wide variety of surfaces: rusty-matt, highly reflective, dark and black to white, aluminum, steel, or copper, with or without coating, oiling or roller emulsion on the surface? Did no other non-contact sensors cope with these variations? Contact us! ELOVIS offers reliable measurement solutions for all common cold rolling processes!

Typical materials for the degree of stretching control:

  • webs, bands, sheets, foils of metal
  • Wires, bolts, bars, strands of metal
  • steel, stainless steel, aluminum
  • copper, brass, bronze,
  • alloys
  • Metals with coatings

Typical machines with measurement problems:

  • rolling mills
  • reversing stands
  • cold forming machines
  • strand rolling mills

Application Examples

Matching Products and Services

Length & Speed Measurement Systems

  • Non-contact length and speed measurement, optically by laser
  • Length and speed free of slippage, maintenance-free, permanently calibrated and accurately measured
  • The Laser-Encoder replaces tactile measurement via impeller, wheel, measurement roller, or machine drive
  • Measurement of agitated surfaces via laser-doppler surface velocimeter

ELOVIS Services

ELOVIS offers the following services in speed ratio measurement:

  • Advice on the degree of stretch regulation
  • Measurement & calibration services
  • Help with surface complaints from your customers
  • OEM sensor developments in the area of stretching degree control


Always available for you:
Bernd Engelsdorf


Vincenz-Prießnitz-Straße 1
76131 Karlsruhe, Germany

T +49 721 933823-0
F +49 721 933823-23

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