Heavy Duty Granulators For High Capacity Size Reduction 

Central granulators for the most demanding plastic size reduction applications

Knives are adjusted outside of the central granulator


Specially developed deflector wedge


Wide choice of rotors


Well-thought-out housing design


Strong welded-steel construction


Oversized outboard bearings


GHS Series Heavy Duty Granulator


ZERMA's GHS Series heavy duty granulators offer a wide range of rotor designs and hoppers.  Our central  granulators can be customized to meet the most demanding plastics size reduction applications.   These central granulators have completely welded heavy steel construction designed to withstand the most demanding and universal applications.  Rotor bearings, knife mounts, and rotor shaft are oversized to meet the demands of industrial recycling.  ZERMA  grinders standard V-cut creates a high-quality regrind with a very low percentage of output material fines. In addition the removable deflector wedge acts as a third stator blade and allows the grinder to be quickly adjusted to different uses. Other standard features include easily replaceable wear plates in the cutting chamber as well as outboard bearings reducing the risk of contamination.


Central Granulators Plastics Applications


ZERMA heavy duty granulator can be customized to almost every application in the plastic recycling field.  Our  GSH 350, 500, 600, and 700  industrial grinders are mainly used as central granulators for in-house plastics recycling applications to process thick-walled pieces in one step. As well as ZERMA's largest diameter rotor, the GSH 1100 Series central granulator can be used to grind large thick-walled parts down to a granule in one step. The large diameter rotors are available with a choice of 9, 11 or 13 rows of rotor knives.

Furthermore, all of the GHS Series central granulators can be used as a second step grinder after an ZXS shredder to reach higher throughput rates. When used to grind light materials, the throughput can be greatly increased with the addition of a ZERMA force feeding device.   For abrasive, contaminated or highly-filled materials the industrial grinder can be equipped with special wear protection, such as hard facing the rotor and housing and key parts manufactured from highly wear-resistant steels.

ZERMA Equipment H Series Granulator Outboard BearingsHeavy-duty Outboard Bearings

The heavy-duty bearings and cutting chamber are separated to prevent material contamination and premature bearing failure.

Learn More

ZERMA Equipment H Series Granulator Deflector WedgeRemovable Deflector Wedge

The easily removable deflector wedge houses a third stator knife. It allows easy and fast adjustments to the granulator's aggressivity.

Learn More

ZERMA Equipment H Series Granulator RotorV-cut Rotor Technology

Different rotor options are available to meet your application. All rotors feature the V-cut technology creating a high quality regrind. For abrasive applications, the rotor’s key parts are manufactured from highly wear-resistant steel as well as weld on hard facing.

Learn More

H Series Heavy Duty Granulator Specifications


ZERMA Equipment H 35-50 Series Dimensions

GSH SeriesGSH 350/500GSH 500/600GSH 500/1000
Rotor Diametermm350500500
Rotor Widthmm5006001000
Drive CapacitykW225575
Rotor Knivespcs3 or 53 or 53 or 5
Stator Knivesrows2 or 32 or 32 or 3
Screen Sizemm>6>6>6
Effective Working Areamm x mm460 x 516636 x 590985 x 590
Weight (approx.)kg180031004200
Dimensions
Amm182021052255
Bmm160018502000
Cmm740800900
Dmm165017651840
Emm520635985
Fmm7759451350
Gmm128015601945