Type WSN | Precision profile rolling mill

The WSN range is a further development of the WN type. The WSN type profile rolling machines are always used when profile wires need to be produced to the highest precision. The fundamental mechanical concept with surrounding frame and linear roll positioning with a wedge mechanism gives this machine a very high stiffness.

In the development of the WSN profile rolling mill, special emphasis was placed on short set-up times and reproducible settings in order to meet the requirements of flexible production.

Rolling mills of WSN type impress with extremely low maintenance requirements. All components are protected from corrosion by galvanization.

Photo: WSN175-Mo/NC

Technical data

Type Roll diameter [mm] max. roll width [mm] max. separating force [kN]
WSN 112 106–120 20 40
WSN 175 170–190 32 112
WSN 280 270–300 50 300
WSN 350 350–380 60 500

Customer specific variations are possible. Example: Further use of existing rolls, etc.

Accessories:

  • Central lubrication of the roll bearings with grease or oil
  • Various designs of wire guides
  • Roll mounting devices and bearings
  • Roll rings in various materials (steel, tungsten carbide, …)

Application examples

Basic model

  • Undriven rolls
  • Manual roll positioning

Additional equipment:

  • Roll force measurement per roll pair
  • Wire guides on entry and exit sides

Photo: WSN112 with driven side rolls

NC positioning of the rolls

  • Specification of the wire dimension on the touch panel
  • 4-axis servomotor control
  • Fully automatic calibration in ten minutes
  • Roll force measurement as machine protection

Video: Roll positioning WSN

Roll drive

  • Selective drive of one, two, three or four rolls with separate motors, drive shafts and geared drives
  • Electronic load distribution for simultaneous use of rolls with different diameters

Photo: WSN112 with side rolls driven

Square and trapezoid profiles

  • Upper and lower roll as special roll
  • Side roll as universal roll

Scheme: Rolls for trapezium and square


Special profiles

  • Roll set specially shaped for the particular wire profile
  • Automatic calibration

Scheme: Special profile rolls

Roll arrangement in detail

  • Side rolls with drive
  • Upper and lower roll without drive
  • Roll profiling for rectangular profile wire
  • Rolls as a combination of roll ring, roll mounting device and bearings
  • Exit guide as a nozzle

Photo: WSN112 – roll arrangement