Trials on the esde Sheet Extrusion Line at our

Technical Center

Every trial is an extensive “getting to know” of our customers’ specific plastic materials.

This way we obtain important parameters about the processing characteristics of the material and, on this basis we can customize our extruders, dies and downstream equipment. The possibilities for modifications are numerous and multifarious. Difficult extrusion tasks request the imagination and inventiveness of our designers. Based on the analyzed test results we prepare a customer-specific machine concept in economical and procedural balance.

As in the end always two questions must be answered:

“What does it cost” and “What do we gain”.

Excerpt from a test report

Material:Polycarbonate (PC) granules / virgin material,
3% MAB additives
Pre-drying:8 hours at 120 °C
Extruder:esde ESE 1-50-36-V
Screw:Barrier screw
Tool:Extrusion die PD FSK SW 900
Polishing stack:PL 1500/S
Drive power:55 kW
Gear:Direct drive
Environmental temperature:20°C

No.T MassMass throughputCapacitySpecial energy requirement V Plate
(°C)kg/hkg/h rpm kWkWh/kgm/min t (µm)
1277142.0 0.56822.2 0.1561.10 2000
2281139.0 0.57024.8 0.1780.77 3000

The following parameters were also determined in the trial and made available to the customer:

  • More detailed description of grooved bush, drive and polishing stack
  • rpm of pump and extruder screw
  • Torsional moment (%) of pump and extruder
  • Melt pressure (bar) in die and pump
  • Temperature on each barrel heating zone, pump, die, polishing stack

Test report

Trials at our technical center help to gain important insight into the customer's specific requirements.

Test result

Vacuum allows a considerable improvement. The degassing effect at engaged vacuum pump was impressively demonstrated by TOP sheets. Note: At cooling-down temperature control is difficult.