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New lump breaker squeezes into restricted spaces

US-based Munson Machinery has introduced a new De-Clumber lump breaker that reduces agglomerates and compacted materials to original particle sizes.

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New lump breaker squeezes into restricted spaces

At 279mm high, the model RDC-3030-SS lump breaker is designed to fit in restricted spaces between bulk storage, handling, processing and packaging equipment. With optional feed hoppers and support bases, it can also operate independently.


Material entering the 762mm square inlet is reduced in size by four rotors with three-point, single-piece breaking heads rotating with minimum clearance inside twin, curved, perforated bed screens. On-size material exits through apertures in the bed screens ranging from 25mm diameter to 64mm square.


“Unlike conventional units that must be unbolted from upstream and downstream equipment to access bed screens, the unit is equipped with interlocked side-removal bed screens that can be removed without tools for cleaning, changing or inspection,” the company explained.


“Dual, independent 7.5 kW motors with gear reducer and chain and sprocket drives provide added capacity and redundancy, rotating the synchronised shafts at approximately 120 rpm to avoid heating the product.”


The unit is recommended for de-agglomeration of free or non-free-flowing bulk chemicals, fertilisers, flakes, cement powders, carbon black pellets or hygroscopic products, and size reduction of large chunks of friable products and compacted powders.


According to the company, it is constructed to withstand heavy usage and is simple to maintain – bearings can be lubricated through external fittings and are isolated from the product processing area with air purge blockseals, and can be fitted with optional air purge packing seals with split housings.


It is constructed of #304 stainless steel finished to sanitary standards and is available in #316 stainless steel, carbon steel, and abrasion-resistant steel (AR-235).


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