Single-shaft shredders from Engineered Recycling Systems (ERS) are engineered for precision material breakdown across metals, plastics, and electronic waste. Manufactured by Erdwich and integrated by ERS, these shredders use a proven rotor/stator principle to deliver consistent size reduction in a single operation, making them ideal for high-efficiency scrap processing.

The shredding process begins as material is taken up by the cutting rotor and repeatedly shredded against the stator blade. This continues until the desired particle size is achieved and the material passes through the integrated perforated screen below. The result is a clean, predefined fragment size that supports downstream separation, refining, or recycling.

ERS offers single-shaft shredders in multiple sizes, including the M400, M600, M700, and M800 series. Each model is available with customized cutting equipment and drive configurations tailored to specific material types and throughput requirements. These shredders are suitable for a broad spectrum of applications, including metal swarf, punched components, hospital waste, aluminum scrap, zinc slag, and further reduction of e-waste.

The compact M400 model features a newly developed screen change construction that allows access from behind the machine, eliminating the need for a transition funnel with a maintenance opening below. This redesign lowers installation height, improves accessibility, and reduces preparation time during maintenance. Operators benefit from faster screen changes, optical control of the shredding process via an integrated viewing window, and a dust-resistant maintenance hatch.

Each single-shaft shredder is equipped with bulkhead seals to protect shaft bearings, a PLC unit with automated reverse and power-down functions, and a pneumatic feed system that optimally supplies material to the cutting plant. These features ensure smooth operation, reduced wear, and minimal downtime in demanding industrial environments.

ERS integrates single-shaft shredders into complete processing lines, pairing them with conveyors, mills, separators, and dust collection systems. Whether you're handling metals, plastics, or composite waste, these shredders serve as the primary reduction stage, preparing material for final sizing and commodity recovery. Their performance supports high recovery rates, reduced labor costs, and compliance with environmental standards.

Each installation begins with a detailed assessment of material types, volume, and facility layout. ERS engineers configure the shredder and supporting systems to match operational goals, ensuring seamless integration and maximum ROI. Single-shaft shredders are trusted across the recycling industry for their reliability, throughput, and ability to handle diverse scrap streams.

By investing in single-shaft shredders from ERS, manufacturers gain a robust solution for metals recycling, waste reduction, and sustainable operations. These machines are built to transform difficult scrap into valuable feedstock, supporting cleaner workflows and profitable recovery.

For the first time modified compact version of the M 400 with new screen change construction leaves the Erdwich plant in Igling. New screen change construction developed: As a rule, the screen change takes place below the machine. In such cases, a transition funnel with maintenance opening sits underneath the cutting plant for a safe screen change. However, this method of construction is not feasible due to lack of space in this project. So rethinking was the order of the day. That's why our technicians have replaced the pickup point. Now the screen change can be made from behind.

The advantages are clear:
1) Lower installation height, since the standard transition funnel with maintenance opening is omitted
2) Better accessibility to the cutting plant or hole screen
3) Less preparation time during maintenance (no preliminary work required)
4) Less time spent on screen maintenance
5) Possibility of optical control of the shredding process by an integrated viewing window
6) dust-density design of the maintenance opening

The shredder is equipped with both a cell wheel lock and Equipped to a pneumatic impressionable system in order to be able to optimally supply the material to the cutting plant.