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Heavy Duty Granulators - Zerma GSH Series

The GSH series of heavy duty granulators are built to suit the ever-changing demands of modern recycling operations.

Comprising 6 unique machines, this series of sturdy granulators can be adapted to process a wide variety of materials, for use in almost any application.

With a variety of sizes available, these machines span from 350mm to 1100m in diameter, and 500mm to 2400mm in width, whilst all are engineered to deliver consistently high quality results with minimal downtime for service and maintenance. 

Machine benefits include:

  • Sturdy, recycling-focused design
  • Range of rotor options
  • Replaceable wear plates
  • Easy knife change and adjustments

GSH 350 and 500 series-
Compact and sturdy.

The heavy duty granulators of the GSH 350 and 500 series feature rotors in widths ranging from 500mm to 1000mm with a diameter of 350 or 500mm. With different rotor and hopper styles available, these granulators can be easily tailored to suit different applications in the plastic recycling field.

Granulators in the GSH 350 and 500 series are mainly used as central granulators for in house recycling applications to process thick walled parts in one step or as a second step granulator after a shredder to reach higher throughput rates.

Typical Applications of the GSH 350 and 500:

  • Films margins from inline recycling
  • Window profiles
  • Fibers
  • Thin-walled non-ferrous waste as non-ferrous metals
  • Copper and aluminum cables
  • Edge trim
  • Sheet

GSH 600 and 700 series
Heavy duty granulators

The heavy duty granulators of the GSH 600 and 700 series offer different rotor designs in diameters of 600 and 700mm, and widths ranging from 800mm to 1600mm.

These medium-sized machines are typically used as central grinders for heavy applications such as thick walled pipe, injected parts such as crates, in blow moulding settings to handle parts and cold parisons.

As a secondary grinder after a shredder granulators in the GSH 600 and 700 series can achieve a consistent output of more than 1 ton per hour.

Typical applications of the GSH 600 and 700:

  • Chunks, lumps and purgings
  • Foil sheets for inline-recycling
  • Bumpers, door panels, fuel tanks and slugs
  • Insulation materials
  • Electronic waste
  • Bottle and bread crates

GSH 800 and 1100 series
– Large granulators for high throughput rates

The large series of GSH 800 and 1100 granulators are designed to withstand the toughest applications in the plastic recycling field, whilst delivering a consistent high quality regrind at rates exceeding 5 tons per hour. Available with rotors of 800 and 1100mm diameter, and widths ranging from 1200 to 2400mm to suit the complex needs of varying operations.

The wide range of rotors and hopper styles allow the GSH granulators to be tailored to almost every application; from light materials like bottles and barrels to pallets and purgings.

GSH 800 granulators can be used to grind large thick walled parts down to a granule in one step, or be used as a second step granulator after a ZXS shredder to reach very high throughput rates.

Typical applications of the GSH 800 and 1100:

  • Large volume, hollow-body parts such as bins, barrels, drums, tanks, and buckets
  • Natural and synthetic rubber bales
  • Reinforced plastics
  • Vulcanized, technical rubber parts, such as pre-shredded, iron-free car and truck tires
  • Pipes

Contact Rotajet

We aim to get back to any enquiry within 12 hours, so please contact us if you are interested in a specific machine or would like to discuss an individual cleaning application. Our friendly team are happy to help via email at or by phone on +44 (0) 1924 271446.

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