M8.35 | WEIMA twin-shaft pre-shredder

The side inspection flap is hydraulically operated and provides quick, safe access to the cutting chamber. The cutting shafts and cutting table are directly accessible for maintenance work, and foreign matter can be removed precisely without the need for dismantling.

The cutting table is equipped with the EES (Easy Exchange System) and can be removed from the machine frame together with the cutting shafts. This quick-change system reduces changeover times and allows the shredder to be flexibly adapted to changing material requirements in industrial operations.

The 280 kW PowerPack can be positioned flexibly – directly on the machine, at a greater distance, or in a separate room. The enclosed design reliably protects the drive components from moisture, dirt and corrosion. Optional sound-absorbing panels reduce noise emissions and facilitate integration into noise-sensitive production environments.

The cutting shafts are designed for use with abrasive materials and contaminated material flows. Cutting discs made from highly wear-resistant Hardox® 500 steel ensure high resistance to abrasion and foreign particles such as sand or metal, and extend service life in continuous industrial operation.

Depending on the desired throughput and target particle size, the cutting shafts can be fitted with between twelve and fourteen cutting discs. The number and width of the discs determine the resulting particle size and allow the grinding process to be tailored to specific applications.

The M8 series twin-shaft shredders are equipped with high-performance hydraulic drives from renowned manufacturers. The system responds quickly even at low power ratings and allows for stopping, starting and reversing under full load. Speed and torque can be adjusted independently and continuously without the need for a frequency converter.

WEIMA shredders are equipped with standard industrial interfaces such as PROFINET and PROFIBUS and can be easily integrated into existing production and control environments. The low loading edge allows for direct feeding via grippers, forklift trucks, wheel loaders or conveyor belts. The raised base frame provides sufficient installation space for standard conveyor belt solutions and facilitates the rapid, clean removal of large quantities of material.

The central lubrication system ensures that moving machine parts, such as the cutting shaft bearings, are always optimally lubricated. There is no need for manual lubrication using a hand pump.

The standard version of the hopper has a capacity of five cubic metres and can be extended to up to eight cubic metres for particularly large components or large quantities of material. Its spacious design allows for convenient and safe loading using a grab.

The M8 series can be operated via both the integrated touchscreen and a remote control. Key functions such as start and stop, opening and closing the maintenance flap, reversing the cutting shafts and emergency stop are directly accessible. Optionally, a smartphone app allows the system to be controlled and provides access to operating data such as throughput, operating hours, maintenance intervals and fill levels.

The large-format touchscreen clearly displays all relevant operating data and settings, and allows for easy adjustment of process parameters such as the cutting shaft speed. In addition to the shredder, the Siemens PLC controls connected peripheral equipment such as conveyor systems, separation systems and secondary shredders via PROFINET and PROFIBUS. This enables material flows to be efficiently coordinated and maintenance processes to be optimised in a targeted manner.

M-series shredders are equipped with an air-cooled oil cooling system to compensate for temperature-related fluctuations in the hydraulic oil. This enables long, stable running times without performance-related interruptions. A generously sized oil tank with an integrated microfilter system ensures consistently high oil purity and helps to extend the service life of the hydraulic components.