Plastics Lump and Purge Shredders

Affordable plastics lump and purge shredders for plastic purgings and cutoffs.

Affordable solution for small plastic lumps and purgings


Simple upgrade for existing granulation system


Easy to move and place


Tangential infeed avoids the need for a hydraulic pusher


Small footprint


Low energy consumption


Lump and Purge Shredder Description


ZERMA's  ZBS Series is a single-shaft plastics lump and purge shredder with a tangential infeed eliminates the need for a hydraulic feeding system.  Its compact and maneuverable design and ‘plug and play’ controls give this shredder total flexibility and ease of use. Like the  ZSS, ZIS, and  ZHS  series shredders, the  ZBS is driven by an oversized gearmotor and equipped with outboard bearings. It has a 310 mm diameter flat E-type rotor using  the proven ZERMA knife holder and knife design in 600 mm or 850 mm widths. The user-friendly design allows for simple and efficient cleaning and maintenance. The ZBS lump shredders’ low rotor speed of 60 rpm and compact design makes it possible to shred lumps at a relatively low noise level. The shredder can be manually or conveyor fed with material discharge by conveyor or into a dropbox.


Lump and Purge Shredder Plastics Applications


The ZBS plastic lump and purge shredders are designed for in-house recycling of small lumps and purges from injection and blow molding processes. The typical input materials are small and medium-sized cakes such as head waste. The plastic material can be shredded to reduce its volume or processed further by a granulator and immediately reintroduced into the production process. The shredder also can destroy sensitive products or recycle small batches of low-volume products to avoid contamination of the main product line.

ZERMA Equipment Rotor KnifeConcave Rotor Knife

The concave ground square knives produce high-quality output and can be rotated after a side is worn out.

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ZERMA Equipment E-type RotorE-type Rotor

The flat E-type rotor has specially-machined pockets to hold and secure the knives. Optional weld on hard facing is available for abrasive applications.

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Plastic Lumps & PurgingsLumps & Purgings

The ZBS shredders can easily process lumps and purgings of up to 400 mm diameter due to its aggressive tangential infeed that doesn’t need a hydraulic pusher.

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Lump and Purge Shredder Specifications


ZERMA Equipment ZBS Series Lump Shredder Dimensions
ZBS SeriesZBS-600ZBS-850
Rotor Diametermm310310
Rotor Widthmm600850
Rotor Speedrpm6161
Drive CapacitykW1118.5
Rotor Knivespcs2640
Stator Knivesrows11
Screen Sizemm>16>16
Effective Working Areamm x mm490 x 550490 x 830
Dimensions
Amm9951045
Bmm490490
Cmm22552255
Dmm525525
Emm14002080
Fmm550830
Gmm420470
Hmm9501200