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Metering Pumps for Polymer Extrusion

Extrusion pumps for polymer processing applications
GC, GE, and GE1M Series

Ever smaller product tolerances characterize the development, i.e. for capacitor foils, packaging films, high-end monofilaments, drawn tapes, gas pipes, window profiles, etc. Our extrusion pumps optimize the polymer extrusion process allowing for precise pressure build-up and metering of polymer in extrusion lines. The use of extrusion pumps is particularly advantageous wherever recycled materials are processed.

Extruders are relieved and are therefore subject to less wear-and-tear. Extrusion pumps offset the impact of various material viscosities. Barmag extrusion pumps is a reliable and durable solution for many extrusion systems within the plastics-processing industry as well as in polymer plants for throughput increase, metering and compensation of pressure fluctuations. Barmag offers a comprehensive extrusion pumps portfolio from a single source with capacities ranging between 4,7 and 12.800 cc/rev.

GC Series – Standard extrusion pump

Features

  • High pressure uniformity thanks to straight bevel spur gearing
  • Low power consumption
  • Low temperature increase
  • Low shear of melt
  • High operating reliability
  • Reliable sealing systems
  • Long service life
  • Available with individually designed drive unit

GE Series – High speed extrusion pump

Features

  • Improved gear design resulting in less shearing areas and therefore lower melt temperature increase Higher operating speeds of the pump are possible due to improved gear design
  • Smaller GE Series pumps can be used while maintaining the same throughput as a similar GC Series pump
  • Up to 15 % energy savings compared to our GC Series

GE1M Series – Extrusion pump for easy interchangeability

Features

  • Common industry design for easy interchangeability and compatibility in various extrusion lines
  • With heating cartridges
  • High pressure uniformity and gentle melt treatment thanks to straight bevel spur gearing

Extrusion Pumps – Technical data and design options

Technical data

  • Viscosity up to 100.000 Pas
  • Temperature up to 300 °C (up to 400 °C as special design option)
  • Inlet pressure up to 100 bar
  • Outlet pressure up to 350 bar (even higher for special design option)
  • Capacities ranging between 4,7 and 12.800 cc/rev

Design options

  • Housing / plates: Carbon steel, alloy steel, stainless steel, tool steel + wear protection coating
  • Pinion shaft / pinion: Carbon steel, alloy steel, tool steel, ceramics + wear protection coating  |  Spur and helical gears
  • Bearings: Carbon steel, alloy steel, stainless steel, tool steel, ceramics + wear protection coating
  • Sealing: Thread sealing (cooled / uncooled)  |  Stuffing box  |  Double mechanical seal  |  PolyVac
  • Heating: Electrical (cartridge / heating plates)  |  liquid

Additional options

  • Pressure and temperature sensor in housing
  • Flanges
  • Mechanical support for pump
  • Individually designed drive unit
  • Terminal box
  • ATEX Zone 2
  • Sealing options for all 4 shafts

Contact

Barmag

General Pump Request
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