CNC 8-head Welding machine

The first and only 8 CNC head welding machine in the world that completely eliminates the welding curb from the corner allowing you to obtain Pvc windows with uniform quality and superior aesthetics.

Natural evolution of the 4-head SL4-FF Evo, thanks to the 4 extra heads allows to weld simultaneously the 4 corners of a Pvc framework complete with 2 crosspieces (front welding) without the need for cleaning (Patented Seamless Welding) or subsequent retouching.

5 Reasons to choose the SL8 FF TR

Reduction of time and space: In a single cycle it welds simultaneously the 4 angles at 45° and 2 crosspieces in 90° mode.

Cost reduction: After welding, there is no need to clean or touch up and therefore neither the cleaner nor the turntable is needed.

Labor reduction: Not having to finish the corners, only 1 operator is required to load the profiles.

Possibility to weld profiles coated with any type of film or foil such as anodized aluminum, painted aluminum, painted Pvc and Pvc covered with natural wood or acrylic.

Solves the problem of profile tolerances: A special automatic calibration system allows to compensate it.


  • Length (A)

    6.000 mm
  • Width (B)

    5.600 mm
  • Height (C)

    2.200 mm
  • Weight

    5.600 Kg


  • Installed power

    25 Kw
  • Supply

    400 V
  • Air consumption per cycle

    225 Nl/min
  • Minimum Operating Pressure

    7 bar
  • Operators



  • Welded frames*

    Up to 1/140 sec.

* Depends on type of profiles, seals, geometry and welding seam.

Weldable Dimensions


  • Height

    58 ÷ 180 mm
  • Width

    40 ÷ 130 mm


  • Height

    58 ÷ 100 mm
  • Width

    50 ÷ 130 mm


  • Maximum

    3.200 x 4.000 mm (on request up ot 6.000 mm)
  • Minimum*

    370 x 670 mm

* It changes depending on the profile used.


8 Heads Quad.


  • Horizontal and contemporary welding of the 4 corners with 2 transoms.
  • C-Welding.
  • Gasket worked directly during the welding cycle.

Upon request the machine can be equipped with:

  • Increased cooling table for sizes 3628, 4028, 4528, 5028.
  • Y axis increase 4.000 mm.