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ZSK twin screw extruder
Our ZSK twin screw extruders continuously set new standards in the plastics, chemicals, pharmaceuticals and food industry. They are the high-end, high-tech heart of our plants and ensure highest product quality.
By individual adaptation to our customers’ applications we are able to guarantee maximum throughput rates at the greatest possible efficiency and product quality for our ZSK machines.
ZSK series
| ZSK Mc18 | extruder for products with a high torque requirement such as engineering plastics and masterbatches |
| ZSK MEGAcompounder | e.g. high capacity extruder for homogenization of polyolefins from the polymerization reactor |
| ZSK NT | two-stage ZSK for separating, plasticizing and homogenization of bimodal polyolefins |
| ZSK MEGAlab | laboratory extruder for the formulation development and the basic scientific research |
| ZSK MEGAvolume PLUS | extruder for processes with a high volume requirement such as products from the chemical and food industry |
| Kombiplast | ZSK with single-screw discharge for gentle pressure build-up of shear-sensitive products such as PVC |
- ZSK 82 Mc18 of Coperion
Special features of the ZSK series
The ZSK series is based on a building block principle. The advantage of this modular principle is the individual adaptation of the process section to every application – so that optimum product quality and maximum throughput are achieved. Different processing zones can be set up alternately as required for conveying, plasticizing, mixing and shearing, homogenizing, degassing and pressure build-up.
The process section of the ZSK itself consists of several barrels in which the screws co-rotate. The closely intermeshing, self-wiping screws prevent stagnant zones along the whole length of the process section. The effect: a constantly high conveying effect and optimum self-cleaning.
Every barrel can be controlled separately. Heating usually takes place electrically with heater shells or heater cartridges and cooling by water. Barrels can also be controlled with liquid or steam heat media for special applications.
Barrels as well as screw and kneading elements are made of nitrided steel in the standard version and of appropriately suitable materials in the extrem wear and corrosion-protected version.
| Maximum speed |
| Maximum power density |
| Maximum resources saving by high efficiency |
| Maximum flexibility in product changes and machine modifications |
| Optimum graduation of the sizes |
| Reliable scale-up |
| Very wide range of material solutions |
| Flexible solutions for the control system |
| Intensive process support |
| Proven longevity of the machines |
| Comprehensive after-sales services, worldwide Coperion service network |
| Large number of application-specific special solutions for increasing the throughout rate and the operating efficiency, among other things quick-change over features, ZS-EG side devolatilization, Feed Enhancement Technology FET, quick-lock coupling |
