PVB TREATMENT

SMF Shaping Machine for PVB interlayer

The SMF machine shapes the PVB interlayer to the desired curvature or stretches it to optimal thickness within the quality requirements of the windscreen. It is adapted for shaping

 

  • clear, tinted and top-shaded interlayer
  • refrigerated and interleaved PVB
  • to the curvature of a minimum radius of 2100 mm
  • with the speed of 3 m/min ( SMF 3 ) or 6m/min ( SMF 6 )

 

The flexible operation and adjustment of the machine permits shaping for short production series.

 

Operation

 

The shaping process takes advantage of the thermoplastic properties of PVB.

 

The interlayer is drawn from the roll through the heating, stretching and pre-cooling zones of the machine.

 

The process is PLC controlled. The settings for production parameters, e.g. curvatureangle or production speed can easily be adjusted  or changed without interruption of the process.

 

Construction

 

The SMF machine is of a compact construction and can be installed in any dust-free area of the factory, with an ambient temperature of 20+-2ºC and RH of 25-30 %.

 

The basic machine is provided with

 

  • solid aluminium profile structure
  • no painted surfaces
  • individually PLC-controlled infrared radiators, which are ­automatically ­adjusted according to the desired ­temperature profile
  • an automatic PVB temperature monitoring system
  • HMI touch panel for the display of process parameters for the display of temperature profile and other parameters
  • temperature profile registration and recall from hard disk
  • patented system for shaping pigment-coloured top-shade ( U.S. pat., EUR. pat )
  • automatic interleaf rolling-out device

 

Options

 

  • several working widths

 

Specifications   

 

SMF 3 -1250    

 

Maximum working width:       1250 mm

Operating speed:                      3 m / min

 

Main dimensions :

width:                                          2400 mm

length:                                        1400+800 mm

height:                                         2300 (2700) mm

Installed power:                         35 kW

Voltage:                                       230 / 400 V, 50 Hz, 5 wire system ( other voltages on request )

 

SMF 6 -1250

 

Maximum working width:      1250 mm

Operating speed:                     6 m / min

 

Main dimensions :

width:                                          2400 mm

length:                                         2500 mm

height:                                         2300 (2700) mm

Installed power:                        75 kW

Voltage:                                      230 / 400 V, 50 Hz, 5 wire system ( other voltages on request )

 

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