Colloid mill for emulsifying and wet milling applications
Achieve precise mixing and grinding with our colloid mill, designed to handle diverse materials from viscous slurries to fine powders, ensuring consistent quality and efficiency in every production run.

Grinds and Mixes Liquids and Slurries
The Colloid Mill Type E from Probst & Class is a versatile solution for industries requiring precise emulsion and dispersion processes. Available in horizontal or vertical configurations, this mill excels in both in-line and batch operations. Its hydraulic and mechanical milling mechanisms ensure precise grinding and mixing within an adjustable annular gap, making it ideal for applications in pharmaceuticals, food, cosmetics, and chemicals.
Capable of processing up to 34,000 liters per hour, the mill’s throughput adjusts with different viscosity levels, offering flexibility across various product forms. Integration into existing systems is seamless with options for various connections, including threaded nozzles and flanges. Compliance with FDA requirements is assured with mechanical seals that can be customized for different applications.
The Colloid Mill Type E supports energy efficiency through optimized milling gear design and IE3 standard motors, available for various voltages and frequencies. It also offers customization options like heated or cooled housing, explosion-proof versions (ATEX), and configurations for sterile environments. Cleaning and maintenance are simplified with CIP capabilities, ensuring minimal downtime and efficient operations.
Benefits
- Enhances process efficiency with precise mixing and grinding in one pass.
- Adaptable for a wide range of viscosities, maintaining consistent product quality.
- Streamlines maintenance with interchangeable seals and CIP capability.
- Complies with FDA standards, ensuring safe production of consumables and pharmaceuticals.
- Supports energy efficiency, reducing operational costs with optimized motor control.
- Applications
- Food,Beverages,Plastic compounds,Suspensions,Cosmetics,Natural rubber compounds,Adhesives,Emulsions,Coating materials,Petrochemical goods,Pharmaceuticals
- End products
- Silicone compounds,Metal polish,Herbicide solutions,Peanut butter,Soy sauce,Cashew milk,Latex gloves,Emulsion paints,Fondant,Cream cheese,Resin beads,Lotions,Yogurt,Suppository bases,Adhesive tape,Ketchup,Mayonnaise,Shampoo,Bitumen sheets,Graphite lubricants,Eye cream,Bubble bath
- Steps before
- De-agglomeration,Pre-comminution,Homogenizing,Dissolving
- Steps after
- Packing,Sterilization,Coating,Mixing
- Input ingredients
- suspensions,creams,ointments,juices,nut pastes,emulsions,adhesives,coating compounds,herbicides,fungicides,pesticides,inks,lotion ingredients,shampoo ingredients,lipstick bases,toothpaste components
- Output ingredients
- finely ground suspensions,homogeneous creams,processed ointments,mixed juices,smooth nut pastes,stable emulsions,ready adhesives,finished coating compounds,active herbicides,effective fungicides,usable pesticides,printing inks,finished lotions,commercial shampoos,ready lipsticks,consumer toothpaste
- 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.
- Operation Type
- In-line and batch
- Installation Orientation
- Horizontal or vertical
- Size Options
- Six sizes
- Flow Rate
- Up to 34,000 l/h
- Milling Gear Adjustment
- Infinitely adjustable
- Seal Type
- Single and double-acting mechanical seals,lip seals (PTFE)
- Milling Forces
- Hydraulic,mechanical cutting,impact,squeezing,friction,shear
- Volatility of Operation
- Adjustable stator-rotor gap
- Customizable Connections
- Threaded nozzle,flange,tri-clamp available
- Motor Options
- IE3 standard motors for various voltages and frequencies
- Accessory Options
- Optional milling gears,various materials,pharmaceutical version
- Working mechanism
- Hydraulic and mechanical forces
- Batch vs. continuous operation
- Batch / Inline
- Automation level
- Manual / PLC
- CIP/SIP
- CIP capable
- Changeover time
- Not specified
- Air incorporation control
- Not specified
- Biological compatibility
- FDA-compliant
- Cleanability
- CIP compatible
- Corrosive resistance (e.g. acids)
- PTFE seals
- Density/particle size
- 0.5–2.5 g/cm³
- Discharge method
- In-line / Batch with hopper
- Machine Layout
- Horizontal or Vertical
- Capacity
- 150–34,000 l/h
- Adjustability
- Infinitely adjustable stator position
- Machine Footprint Size
- Varies with size
- Customizable Connections
- Threaded nozzle / Flange / Tri-clamp
- Number of Sizes Available
- Six standard sizes
- Seal Types
- Single / Double-acting mechanical / Lip seals (PTFE)
- Drive System
- IE3 standard motors
- Options
- Mobile version / Heated/Cooled housing
- Discharge method
- Threaded nozzle / Flange / Tri-clamp
- Standard motors (IE3)
- Various voltages and frequencies