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Zerma Granulators

New beside the press, large/central grinders (including cyclone, filters and evac systems), low RPM, screenless and tangential granulator systems, plus pulverizers and shredders.


With more than 70 years of experience, ZERMA is one of the leading manufacturers of high quality size reduction machinery. From the small GSL slow speed granulators to the versatile GSH heavy duty granulators including small and compact granulators with integrated blower and soundproofing. Specialized machines like the GSP pipe and profile granulators and ZERMA PM disc pulverizer systems for fine grinding applications. Adding a complete line of shredders, starting with light shredders for wood applications, up to large heavy duty shredders ZERMA recycling machines range in drive power from 2.2 kW up to 200 kW and cover the whole spectrum of plastics size reduction applications.

Zerma Company Overview


The name ZERMA comes from the German word zerkleinerungsmaschinen, meaning crushing machine. Since the company was founded in 1943, this has remained our mission.

ZERMA has traditionally focused on the development and production of size reduction machinery for the plastics industry. However, today ZERMA has expanded into related industries such as tire recycling, e-waste and wood recycling. Our core strength lies as a machinery and component producer. As such we are an ideal partner for systems integrators and OEM projects.

We remain committed to the improvement and development of size reduction machinery. The ZERMA product consists of three main machine types; granulators, shredders and pulverizers.

Our granulator product lines cover a full range of sizes and applications. We start from the slow speed, beside the press models of the GSL Series, and the compact soundproofed granulators of the GSC Series. These machines are commonly used in injection, blow molding, and extrusion applications. The large GSH Heavy Duty Granulators are also used in these applications as well as high throughput operations and demanding post consumer recycling.

Our second machine category is the Zerma Single Shaft Shredders. Again, we are able to cover a wide range of applications. We offer the small ZBS Series for purgings, the ZSS and ZIS Series for general applications, and the ZXS Series to achieve high throughputs. Our shredder offering also includes the ZWS Series for wood and regenerative fuels.

An important milestone was the development of the ZRS Pipe Shredder Series. These machines allow the processing of pipes with up to 1200 mm diameter and 6 m length without the need for pre-cutting. There is no comparable product available on the market today.

The ZERMA PM Series pulverizers are produced for extrusion and rotational molding applications. We offer a complete range of machines as well as evacuation and screening equipment to insure quality of the finished product.

ZERMA also offers machines for specialized markets. This includes ZHM Series hammer-mills and GRF Series compact granulators fitted with roller feeding devices.

The most recent addition to the ZERMA family of products is the ZTS Tire Shredding System. These machines are designed to process used car and truck tires. We offer complete systems to produce separated crumb or powder.

In order to better service our customers in different markets, we have established ZERMA-Europe, ZERMA-UK, ZERMA-Thailand, ZERMA-North America, ZERMA-Latin America and ZERMA Australasia. These subsidiaries work with more than 100 agencies world wide to ensure quick delivery, optimal service, and timely support. We call it the ZERMA family.

GSL Slow Speed Grinders

GSL - SLOW SPEED GRANULATORS Advantages direct driven staggered rotor special knife design makes adjustment unnecessary easy access for maintenance and cleaning… More Info

GSC Compact Granulators

GSC - COMPACT GRANULATORS Suitable for blow and injection molding Advantages Knives are adjusted outside of the machine Compact design Different rotor types ava… More Info

GST Compact Granulators

GST - COMPACT GRANULATORS Specially designed for blow and injection molding General Description All machines in the GST series feature a compact soundproofed en… More Info

GSE Economical Granulators

GSE - ECONOMICAL GRANULATORS Central granulators for in house recycling Advantages Knives are adjusted outside of the machine Mobile Compact design Different ro… More Info

GSP Pipe and Profile Granulator

GSP - PIPE / PROFILE GRANULATOR To handle long pipes and profiles General Description The Pipe and Profile Granulators of the GSP series are available in rotor … More Info

ZCS 1000 Shredder/Granulator Combination

ZERMA Shredder/Granulator Combination Type ZCS 1000  (New Model) Feed opening:                                     1500 x 600 mm Rotor width(Shredder):         … More Info

ZSS Single Shaft Shredder

ZSS - SINGLE SHAFT SHREDDER Designed for a wide range of applications General Description The ZSS shredders are single shaft shredders with a powerful two speed… More Info

ZIS Shredder for Huge Parts

ZIS - SHREDDER FOR HUGE PARTS Designed for the size reduction of voluminous parts General Description The ZIS series shredders are single shaft shredders with a… More Info


ZXS - HEAVY DUTY SHREDDERS Designed for the most demanding and high throughput applications General Description The ZXS shredders are single shaft shredders wit… More Info


ZTTS - TIRE SHREDDERS Second stage Fine shredder for pre-shredded tires General Description The ZTS and ZTTS single shaft shredders are specially designed for t… More Info


ZHM - HAMMER MILLS Size reduction solution for brittle materials General Description The ZHM series of hammer mills feature heavy duty rotors ranging from 600 t… More Info


ACCESSORIES Blowers ZERMA offers a complete program of suction systems to discharge material from the machines. These systems include blowers, piping, cyclones … More Info

Questions and Quote Requests

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