Perforated disc mill for pre-comminution and mashing
Achieve precise granulating and mashing of diverse materials with this versatile mill, optimizing pre-comminution phases for seamless integration into your processing line.

Processes and Comminutes Solids and Slurries
The Perforated Disc Mill Type O by Probst & Class GmbH & Co. KG is an adaptable solution for processing a variety of materials, from soybeans and fruits to chemical and cosmetic substances. Utilizing a rotating knife bar and perforated disc, this mill provides efficient granulation, mashing, and comminution across food and chemical industries. You can expect capacities ranging from 150 to 20,000 kg per hour depending on material properties. Designed for both batch and in-line operations, its vertical configuration enhances versatility and integration ease. This unit supports industry-standard connections and offers a range of mechanical seals compliant with FDA requirements, ensuring optimal hygiene and process integrity. Options like ATEX certification and frequency converters cater to specialized needs, while the straightforward seal replacement system facilitates minimal downtime during maintenance.
Benefits
- Enhances processing efficiency with versatile in-line and batch operations.
- Simplifies maintenance with easy-to-replace perforated discs and seals.
- Meets stringent hygiene standards with FDA-compliant seal options.
- Supports diverse material handling with customizable hole diameters and seal types.
- Optimizes plant safety with ATEX certification options for explosive environments.
- Applications
- Soaked paper,Meat,Soy beans,Cosmetic products,Chemical products,Foodstuffs,Vegetables,Fruit
- End products
- Cosmetic creams,Detergent emulsions,Vegetable mash,Soy milk,Ground meat,Soybean meal,Fruit puree,Paper pulp
- Steps before
- De-agglomeration,Dispersing,Emulsifying,Homogenizing,Pre-comminution,Micro-comminution
- Steps after
- De-aeration,Mixing
- Input ingredients
- lumpy solid pieces,fruit,vegetables,meat,soy beans,soaked paper
- Output ingredients
- mashed materials,crushed materials,comminuted products
- Market info
- Probst und Class is known for manufacturing high-performance industrial homogenizers and wet milling equipment, offering customized solutions for dispersing, emulsifying, and grinding applications, with a strong reputation for quality and innovation in the process industry.
- Capacity
- 150–20,000 kg/h
- Operation Type
- In-line and batch
- Motor Type
- Enclosed
- Installation Position
- Vertical
- Connection Type
- Threaded nozzle / Flange / Tri-clamp
- Seal Type
- Single and double-acting mechanical / Lip seals (PTFE)
- Compliance
- FDA requirements
- Optional Features
- Recirculation system / ATEX version / Sterilization version
- Motor Standards
- IE3 standard motors
- Drive System
- Driver wheel / impeller
- Working Mechanism
- Knife bar and perforated disc
- Batch vs. Inline Flow
- Both Batch and Inline
- Capacity Range
- 150-20,000 kg/h
- Material Feeding Options
- In-line flanged piping / Hopper
- Seal Options
- Single and double-acting mechanical seals / Lip seals
- Motor Design
- Enclosed vertical motor
- Automation Level
- Manual / Automated Options
- Options Available
- Recirculation,ATEX,Sterilization,Mobile version
- Abrasion resistance
- Yes
- Biological compatibility
- Food-grade,cosmetic-grade
- Cleanability
- CIP-compatible
- Corrosive resistance (e.g. acids)
- High resistivity
- Density/particle size
- Variable
- Application Area
- Food Processing,Chemical,Cosmetic
- Machine Footprint
- Compact
- Orientation
- Vertical
- Motor Enclosure
- Fully enclosed
- Feed Method
- In-line via directly flanged piping
- Discharge Method
- Driver wheel or impeller
- Standard Sizes
- 150 to 20,000 kg per hour
- Connection type
- Threaded nozzle / flange / tri-clamp
- Seal type
- Single and double-acting mechanical seals / lip seals (PTFE)
- Motor type
- Enclosed motor (vertical)
- Recirculation system
- Recirculation via hopper
- Explosion proofing
- ATEX version
- Sterilization capability
- Version designed for sterilization
- Mobile version
- Skid/mobile version
- Frequency control
- Frequency converter
- Motor efficiency
- IE3 standard motors for various voltages and frequencies