Sai Extrumech


PreheaterConductor preheater for cable production lines

During the manufacture of data cables, a reliable conductor preheating is required to ensure optimum adhesion of the insulation on the wire. For these applications SAI EXTRUMECH offers the advanced preheating system PREHEATER.

The PREHEATER is positioned before the extruder and preheats the wire by means of inductive heating depending on product type from 100°C to 190°C.

SAI EXTRUMECH offers the device with the processor system ECOCONTROL 600 directly integrated in the preheater housing. The ECOCONTROL displays the product and production parameters numerically and graphically on a clear 8.4“-TFT-monitor. Moreover, it includes a trend display of the relevant data, such as temperature and line speed.

An additional highlight is the integrated product library, where product recipes can easily be stored and recalled. To ensure a stable temperature and optimum adhesion the required power is calculated by the PREHEATER depending on line speed and product diameter.

With the addition of the PREHEATER in its product range, SAI EXTRUMECH offers customers a complete scope of system solutions. A setup change of the line with the PREHEATER is possible in combination with several interfaces such as Profibus-DP.

The PREHEATER is available for solid round conductors with a product diameter from 0.45 - 2.8 mm (0.0177 - 0.1102"), as well as for stranded conductors with a conductor cross-section from 0.16 - 6.16 mm² (0.0063 - 0.2425").

Functional principle : induction heating
Diameter range : 0.45 - 2.8 mm for solid round conductors
0.16 - 6.16 mm² for stranded conductors
Line speed : max. 2,500 m/min
Frequency : 1300 Hz
Power rating : 16 kW
Conductor temperature : 100 - 190°C, based on an initial temperature of the conductor of 20° C
In- and outputs : RS485, RS232 (Diagnostic); Profibus-DP*1), Ethernet/OPC*1), 4 contact outputs for tolerance and status messages (max. 30 V, max. 0.5 A)*1), 1 USB interface for a printer*1)
Display unit : ECOCONTROL 600, 8.4" TFT color monitor
Operation : Touchscreen

Outstanding Features

  • Optimum adhesion of the PE (or other plastics) on the conductor
  • Reliable control of the preheater‘s power for a precise heating of the wire
  • PREHEATER can be retrofitted into existing lines
  • Graphical interface with recipe storage and trend display via ECOCONTROL 600