Two-Shaft-Ripper

► Easy maintenance

       | Due to quick accessibility to the knife shafts.
       | Thanks to automatic central lubrication system for shaft bearings.
 

► Savings in operating costs

       | Due to long service life with ripper blades and ripper segments made of
         wear-resistant special steel.
 

► Optimum size reduction

       | Due to special ripper system, variably adjustable
         for different materials.
       | Thanks to variable speed control via frequency converter.

► Highest throughput rates

       | By electromechanical high-torque gears for each ripper shaft.
       | Due to independent, alternating forward/reverse ripper operation
         on each ripper shaft.

► Robust and durable

       | Due to large-dimensioned special bearings and milled ripper shafts.
       | Due to additional integrated bulkhead seal to protect the shaft bearings
         against liquid and aggressive materials.

► Efficient and safe operation

       | PLC control with automatic reverse and cut-out control to protect the
         machine from damage in the event of overload or from solid parts.
       | Through energy-optimised frequency converter for each shaft.

The knives of the cutting gear, made of wear-resistant special steel, are individually inserted, so that different sequences of types of cut are possible depending on the material to be shredded. The cutting tools are easily accessible and can be exchanged individually if required or be installed so as to be welded directly into place. Depending on the application, different drive powers from 45 kW to 132 kW are available to achieve a throughput of 1.5 to 5 tonnes per hour. The two motors of the ERDWICH twin-shaft rotor ripper system are each equipped with an energy-efficient frequency converter so that the shafts can be controlled independently of each other. The PLC control with automatic reverse and cut-out control, specially designed for this purpose, protects the machine from damage caused by overloading or bulky solid parts that have become jammed.

The twin-shaft rippers are used primarily for recycling electronic scrap, washing machines, refrigerating devices, artificial turf, solid die-cast aluminium parts and punch burrs, bulky waste, household refuse, landfill reclamation and much more. The ripper is particularly suitable for pre-shredding bulky materials that are to be shredded even finer in a second pass. In combination with downstream hammer mills, granulators and separation technologies, we also offer complex turnkey plant engineering.

► Various drive variants

       | in compact design, with industrial or epicyclic gear unit and in
         high torque execution possible.

► Heavy-duty, torsion-free steel version

       | with centre beam and counter-ripper segments.

► Individual knife shafts

       | different blade arrangements and tools are possible.
       | Can be removed from the housing with little effort.

► Heavy-duty block bearing

       | in steel housing manufactured in-house.

► Modular segmentation

       | interchangeable to the material to be processed.

► Bulkhead wall partition ducts

       | to protect the bearings from contamination.