PRODUCTS & ACCESSORIES
Flexible shaft Grinding System & Macerator Pump
NETZSCH Pumps and Systems manufactures the best industrial shaft grinding systems and macerators pumps. The macerator pumps are used for grinding large solid matter in wastewater, and biogas applications. We offer high-performance flexible shaft grinder, and macerator pumps your suitable solutions for the prevention of blockages and clogging.
Robust, versatile, and powerful: To protect your systems and the pump units they contain, these ensure that impurities are shredded and ready for pumping. In this way, you can prevent the risk of blockages and clog in your pump systems.
Our Grinding systems can be used wherever necessary to reliably break down impurities such as textiles, plastics, or similar liquids to prevent damage to pumps or other systems. The large selection of different grinding systems enables an optimal and economical reduction of solids in a wide range of applications. Together with you, we will find the right system for your application. We promise you Proven Excellence - outstanding performance in all areas.
The technology of the grinding systems & macerator pumps
Grinders can be divided into two categories based on the different technologies. On the one hand, there is the technology of the M-Ovas® universal cutting plate macerator and, on the other hand, the N.Mac® twin shaft grinder. In the cutting plate macerator, the shreddable parts are pressed against the perforated plate by the flow or are partly drawn into the holes. More significant amounts accumulate in front of the perforated plate and are ground by the cutter head until they are flushed through the openings.
This macerator pump effectively protects connected units from blockages. By replacing the perforated plate, you can change the hole size and thus the degree of shredding. The twin shaft grinder technology is suitable for particularly coarse and solid contaminants. Here, the two knife blocks grind washed-up solids such as textiles or plastic waste in liquid media. Thanks to numerous different blade combinations, you can quickly determine the degree of shredding yourself. This prevents possible clogging in the pump chamber.
More significant amounts accumulate in front of the perforated plate and are ground by the cutter head until they are flushed through the openings. This effectively protects connected units from blockages. By replacing the perforated plate, you can change the hole size and thus the degree of shredding. The twin shaft grinder technology is suitable for particularly coarse and solid contaminants.
Here, the two knife blocks grind washed-up solids such as textiles or plastic waste in liquid media. Thanks to numerous different blade combinations, you can quickly determine the degree of shredding yourself. This prevents possible clogging in the pump chamber.
Pumps for Industrial Applications
The product portfolio of grinders and macerators pumps from NETZSCH
Practical experience with grinding systems
Discover first-hand how our grinding systems perform in practice and the crucial role our service plays in ensuring smooth operation. Customers report on their experiences.
FAQ grinding systems
Grinding systems are used to shred coarse solids, impurities or fibrous components before or within pump systems. They reliably protect pumps and plant technology from blockages, damage, and unplanned downtime.
Grinders significantly increase operational safety and plant availability. By reducing solid size, blockages are avoided, maintenance costs are reduced, and pump service life is extended.
Grinding systems can process a wide range of solids, including fibrous materials, plastics, textiles, organic components, wood, hygiene articles and lumps in sludge and wastewater. The exact suitability depends on the system’s design.
Typical applications include wastewater treatment, industrial processes, the chemical and food industries, and municipal and industrial sewage treatment plants. Wherever media containing solids are conveyed, grinders play an essential role in ensuring safe operation.
Grinders can be installed upstream of the pump, in the suction line, or directly in the pipes. The optimal positioning depends on the process conditions, the media composition, and the pump type.
Yes, grinding systems can usually be easily integrated into existing systems. The experts at NETZSCH Pumps & Systems will assist you in designing and selecting a suitable system for your existing infrastructure.
Grinding systems are robust and designed for reliable continuous operation. Maintenance requirements are low and primarily consist of regular visual inspections and replacement of wear parts, depending on the medium and operating conditions.
All relevant original spare parts for grinding systems from NETZSCH Pumps & Systems are available, including cutting tools, cutter rings, knives, seals, and other wear-related components. The spare parts are precisely matched to the system design and ensure reliable, safe operation.
The correct spare part can be identified by the machine number, serial number, or item number. Spare parts lists, technical drawings and the operating and maintenance instructions also provide support. Alternatively, the NETZSCH Pumps & Systems service team can provide expert advice on selecting the right original spare part.
Yes, with protection against blockages and mechanical damage, grinding systems significantly reduce unplanned downtime. They thus contribute to stable process control and higher plant availability.
Depending on the design and material selection, grinding systems can also be configured for abrasive or chemically demanding media. An application specific design ensures that material resistance and service life are optimally matched.
NETZSCH Pumps & Systems supports you from consultation and design to the integration of the proper grinding system. Based on your process data, we develop a solution that is optimally tailored to your application.









