Extruders & Compounding Machines

ZSK MEGAcompounder

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High-capacity extruders for polyolefins

The twin screw extruder ZSK MEGAcompounder from Coperion is considered a milestone in the development of the high-performance compounding plants for the production of polyolefins. The extremely high productivity of the system is the result of Coperion's continuous research and development.

The ZSK MEGAcompounder is a closely intermeshing, co-rotating twin screw extruder, providing highest throughput rates and productivity. The modular design of the process section allows various zones to be configured as required for conveying, plasticizing, mixing and shearing, homogenizing, devolatilizing and pressure build-up. The ZSK achieves maximum throughput rates and first-class compound qualities with
outstanding process reliability.

Whether it is a matter of compounding and pelletizing of polyolefins, discharge of LDPE/EVA from LPS, devolatilization of polymer and rubber solutions or processing of bimodal polyethylene with our many years of know-how we configure the ZSK MEGAcompounder and the system's auxiliary equipment to your individual process requirements. You achieve maximum throughput rates with the greatest possible cost effectiveness and the highest product quality.

The current series features a specific torque of 12.5 Nm/cm3. This brings polyolefin processing to throughput rates of up to 135 t/h.

Advantages of the ZSK MEGAcompounder series

  • Specific torque of 12.5 Nm/cm3
  • Good intake and conveying properties
  • Gentle and stable melting of the powder (even at reduced throughput rates)
  • Good homogenization of additives in the polymer melt
  • Effective pressure build-up with low energy input
  • Maximum power density
  • Gentle product handling for maximum quality
  • Maximum productivity
  • Large number of application-specific solutions to increase throughput and productivity
  • Very wide range of wear protection solutions
  • Comprehensive process engineering support
  • High reliability and proven technology of the machines
  • Comprehensive after-sales services by worldwide Coperion service network

Related Industries

  • Plastics
  • Chemicals

Typical areas of application of the ZSK MEGAcompounder

  • Compounding and pelletizing of polyolefins
  • Discharge of LDPE/EVA from LPS
  • Devolatilization of polymer and rubber solutions
  • Processing of bimodal polyethylene

100 % prime product – zero waste

Coperion Color Change Concept

Coperion Color Change Concept

Color changes in polyolefin production become possible without interrupting production.

With Coperion’s innovative concept, color changes in polyolefin production are possible from natural to black pellets as well as from black pellets to natural – without cleaning the system. Changeover time from black to natural is less than 5 hours.

Production Capacities

PP Throughput rates up to approx. 100 t/h
LLDPE Throughput rates up to approx. 125 t/h
HDPE Throughput rates up to approx. 135 t/h
LDPE Throughput rates up to approx. 80 t/h

Technical Data of the ZSK MEGAcompounder

ZSK MEGAcompounder ZSK 177 Mc ZSK 250 Mc ZSK 320 Mc ZSK 350 Mc ZSK 380 Mc ZSK 420 Mc
Specific troque Md/a³ [Nm/cm³] 12.5 12.5 12.5 12.5 11.3 11.3
Max. screw speed [min-1] 550 500 400 350 320 upon request
Max. drive power N [kW] 4500 11200 18600 22800 26400 upon request

Mc = MEGAcompounder

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