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Plastics Recycling
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ZSS Single Shaft Shredders
ZIS Large Part Shredders
ZXS Heavy Duty Shredders
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ZTTS Tyre Shredders
ZWS Light Duty Shredders
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Rubber Recycling
Overview
Due to the increasing number of cars and trucks all over the world, used tyres are available in large quantities at very low cost. With a bit of clever recycling, you can get a whole lot out of used tyres: granule in various sizes, steel and profit. The sales income naturally depends on the quality of the output material a process that is as efficient as possible. ZERMA designed a system dedicated to tyre recycling, which ultimately produces very high-quality materials for recycling. Final products could be either shreds for thermal recycling, predominantly in the cement industry and crumb rubber of about 5 mm size used in various applications.

Truck tyres composition guide:

  1. Rubber 70%
  2. Steel 27%
  3. Fibres 3%

Car tyres composition guide:

  1. Rubber 70%
  2. Steel 15%
  3. Fibres 15%
Shredding and metal separation
The first step is the newly developed ZERMA ZTTS Tyre shredder which can shred passenger car tyres of up to Ø 800mm into strips and pieces of approx. 150 mm – 300 mm. ZERMA tyre shredders are heavy duty single shaft shredders with gravity infeed specifically designed for the grinding of tyres. They feature additional wear protection compared to other shredders.

The machine is equipped with a flat rotor, made of highly wear resistant steel with added weld on hard facing for longer lifetime. The cutters used in these shredders are made from a newly designed, specialized material to ensure long life time and optimal performance. As opposed to other systems, the ZERMA system does not require the tyres to be de-beaded. For larger truck tyres we modified our proven ZXS Shredder.

The so called ZXS “T” can shred truck tyres of up to Ø 1500 mm into shreds of approx. 150mm – 300 mm. In both cases these shreds are discharged by a conveyor belt and transferred to the next ZTTS second stage tyre shredder. This shredder is than shredding the material into pieces of about 20 mm.

This step helps to separate the tyre rubber from the steel. A combination of cross belt magnetic separators and magnetic drums helps to split the various factions at this stage in the process. During metal separation we can take out about 99% of the total steel content. The steel free granule can than be packed and used as refuse derived fuel or transferred to the granulating process.

Granulating and sifting
After shredding and steel separation the tyre shreds will be transferred to the granulation process. For granulating of the rubber shreds we are using our heavy duty GSH granulators with a special closed H-rotor to reduce the rubber down to a size of < 5mm in two steps. Throughout this process the material is classified on ZERMA CS screening machines and the last metal contamination is eliminated by additional magnetic drums.
Recycled rubber is used in many products including:
  • Rubber Floor Tiles and Flooring
  • Children’s play ground matting
  • Moulded Rubber Products
  • Fuel for Waste To Energy plants
  • Additive for Hot Melt Asphalt
  • Aggregate in cement
  • Can be processed with new de-vulcanization technologies
  • Pyrolysis
01 Tyre shreds after the first step in the ZTTS tyre shredder
02 Rubber crumb after the second step in the ZTTS tyre shredder
03 Truck tyre being shred in a the ZXS 2000 T
Rubber Recycling Machines
ZXS
PLASTIC
SIZE
REDUCTION
RUBBER
SIZE
REDUCTION
 
 
 
ZXS
1500
ZXS 2000
ZXS 3000
WOOD
SIZE
REDUCTION
E-WASTE
SIZE
REDUCTION
ZXS Heavy Duty Shredders
The ZXS shredders have been designed for the most demanding and high throughput applications in recycling industries. The input materials can be all kinds of plastics, wood, paper, cardboard, e-waste, post consumer waste, rubber, etc. in various shapes and sizes. Typical input materials are: fridges, purges, tyres, pallets, bales, drums and barrels, pipes, film and so on…
ZTTS
RUBBER
SIZE
REDUCTION
E-WASTE
SIZE
REDUCTION



ZTTS
1500
ZTTS2000
ZTTS3000
ZTTS Tyre Shredders
The ZTTS is used to pre shred complete car tyres or large chunks of pre processed tyres down to a size of about 150 mm. The twin rows of stator knives and screen in the ZTTS enable it to take the tyre shreds down to a any required size > 20 mm. The unique machine design combined with the variable cutting gap create an optimal separation of rubber and steel fractions.
GSH
  REDUCTION GSH 350
GSH 500
GSH 600
GSH
700
GSH 800
GSH 1100
PLASTIC
SIZE
REDUCTION
WOOD
SIZE
REDUCTION
GSH Heavy Duty Granulators
The wide range of rotors and hopper styles allow the GSH machines to be tailored to almost every application in the plastic recycling field. The GSH heavy duty granulators 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.
PM
  REDUCTION   
PM
300
PM 500
PM 800
PM 500H
PM 800H
PLASTIC
SIZE
REDUCTION
WOOD
SIZE
REDUCTION
PM Disc Pulverizers
The main purpose for the ZERMA PM Pulverizers is the pulverization of PVC regrind in pipe and profile recycling. Working in line with a shredder and granulator to have a balanced and efficient system to handle in house production waste. Another application is the grinding of PE for Roto Moulding applications where the PM Pulverizer is used to create powder required in the production process.
   
         
   
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