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.
A high shear-rate and an extremely performing screw geometry enable to achieve high pigment concentrations in different polymer carriers with optimal dispersions.
A compenetration ratio of the screws up to ≅ 1.65 conjugates excellent quality with excellent production capacity.
Self-cleaning screw profiles avoid prolonged production stops. Strand extrusion die heads are typically used on color/additive masterbatch and on compounding lines for some applications (e.g. glass fiber compounds). Screen changer and extrusion head are designed for quick opening and fast colour change. A control panel and automatic devices allow operators to manage production with minimum effort.
|COMAC'S EXTRUDERS "EBC" - STANDARD/HIGH VOLUME|
|MODEL||EBC 40||EBC 50||EBC 60||EBC 70||EBC 90||EBC108||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|
|Screw center-to-center (mm)||35||44,6||52||58||76||90||100||110|
|Screw speed (rpm) other values on request||600 - 1200||600 - 1200||600 - 1200||300 - 1200||150 - 900||150 - 900||150 - 600||150 - 600|
|Torque on each screw (Nm)||HT (High Torque)||472||976||1547||2146||4829||8020||11000||14600|
|XT (Extra Torque)||643||1331||2109||2927||6585||11000||15000||19900|
|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|
L/D - typically, barrels are built-up by independently thermoregulated modules having 4-diameter length each;
Output -the ranges here above want to give an idea on limits considering a variety of cases, but, figures can only be very indicative; actually achievable values strongly depend on raw material formulations, target products and relevant desired characteristics, as well as speed and process conditions.