MASTERBATCH LINES
TWIN-SCREW EXTRUDERS AND COMPLETE LINES FOR MASTERBATCH
Optimized for the strict quality requirements of masterbatch producers, these lines are fitted with the most advanced solutions coming from 40 years of real experience in this field.
System Highlights
- High shear – rate and performing screw geometry enables to achieve high pigment concentration in polymer carriers with optimal dispersion.
- High-volume compenetration ratio = 1.65 conjugates excellent quality with output performances.
- A self-clearing profile avoids long machine stops.
- Screen changer and extrusion head are designed for quick opening and fast color change.
- Easy machine controls and automaticotives devices allow operators to manage production with minimum effort.
COMAC’s EXTRUDERS “EBC”
| Model | EBC 40 | EBC 50 | EBC 60 | EBC 70 | EBC 90 | EBC 108 | EBC 120 | EBC 135 |
|---|---|---|---|---|---|---|---|---|
| Nominal diameter (mm) / High volume (mm) | 42/43 | 53/55 | 62/64 | 70/72 | 92/94 | 108/112 | 120/123 | 132/135 |
| Screw number of lobes | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| L/D ratio (std. range) | 24 – 52 | 24 – 52 | 24 – 52 | 24 – 52 | 24 – 52 | 24 – 52 | 24 – 52 | 24 – 52 |
| Indicative output (kg/h) | 100 – 250 | 200 – 500 | 300 – 750 | 500 – 1400 | 1000 – 2200 | 1100 – 3000 | 1200 – 4000 | 1700 – 6000 |
NOTE:
L/D – typically, barrels are built-up by independently thermoregulated modules having 4-diameter length each;
Output – the ranges here above give an idea on limits considering a variety of cases, but, figures are only indicative; achievable values strongly depend on raw material formulations, target products and relevant desired characteristics, as well as speed and process conditions.
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