NOV Mono Chopper Hopper
SubCategory: AllMunchersGrinders
Manufacturer: Nov
Industry:
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Key specifications
- Flows up to 2 m³/h
- Pressure up to 5 bar
Key product features
- Combined solids reduction and transfer pumping → Reduces the need for separate grinding and feed-pump stages.
- Angled primary cutters → Grabs and tears bulky organic material before pumping.
- Multiple reduction stages → Produces a more homogeneous, pumpable feed for downstream processing.
- Particles reduced below 1 in. / approximately 2.5 cm → Helps prepare difficult biomass and food waste in a single pass.
- Large surge-capacity hopper → Accommodates variable feed and supports faster process handling.
- Coarse, medium and fine reduction options → Allows particle size to be matched to the downstream process.
- Progressing cavity transfer element → Provides controlled positive-displacement transfer of the prepared material.
- Carbon steel, stainless steel and specialised construction options → Supports material selection for different process environments.
- Disassemblable cutter shafts and pump internals → Helps maintenance teams access wear components and reduce service time.
- Integrated process concept → Helps simplify layout, maintenance planning and lifecycle cost for solids-handling duties.
NOV Mono Chopper Hopper is used where bulky organic material must be reduced and transferred as a pumpable mass. Typical duties include food-processing waste, product recovery, rendering, slaughterhouse residues and biomass preparation for biogas production. Combining size reduction with transfer pumping helps operators move difficult feedstocks into the next process stage with fewer separate handling steps.
The unit combines aggressive cutting with further grinding stages and a progressing cavity pump. Angled cutters grab and tear large objects, while subsequent reduction stages produce a more homogeneous feed before it enters the pump. The progressing cavity element then transfers the prepared material with a low-friction gear-joint arrangement intended to support reliable operation under demanding solids-handling conditions.
NOV states that the Chopper Hopper can reduce solids as large as whole watermelons to particles below 1 in. (approximately 2.5 cm) in a single pass. Coarse, medium and fine particle-size configurations are available, and construction can be specified in carbon steel, stainless steel or specialised materials. Cutter shafts and pump internals are designed for straightforward disassembly when maintenance is required.
For operators, the main value is process consolidation: solids reduction and transfer occur in one integrated unit, which can reduce intermediate handling and simplify the feed arrangement. Serviceable cutter and pump components support planned maintenance, while the large surge hopper helps accommodate variable incoming material. AxFlow can support product selection, application review, service and spare-parts planning for the required duty.
