Batch wet grinding equipment
Vertical Basket Mill
Vertical basket mill for wet grinding, fine dispersion and small to medium batch processing of pharmaceutical, pigment and specialty material suspensions.
Short Answer
A vertical basket mill combines a grinding basket and dispersing action for batch wet grinding and fine dispersion where flexible vessel handling is required.
Process position
Where A Vertical Basket Mill Fits In The Process
The basket mill is used after premixing and before quality check, storage or filling when a batch needs wet grinding or dispersion without a separate circulation mill system.
Step 1
Premix
Step 2
Basket milling
Step 3
Dispersion check
Step 4
Discharge
Step 5
Storage or filling
Product data
What It Is And How It Works
Use this product data as a starting point for equipment selection. Final configuration should be confirmed against URS, material characteristics and testing where required.
What It Is
A vertical basket mill is a batch wet grinding machine where a grinding basket is lowered into the product vessel for dispersion and particle reduction.
Working Principle
Grinding media inside the basket and a rotating shaft create circulation and shear. Product passes through the grinding zone repeatedly until the required dispersion is approached.
Material and sizing
Suitable Materials, Particle Size And Capacity
Particle size and throughput are process results, not generic promises. They depend on material behavior, selected model and operating parameters.
Suitable Materials
- Wet pigment and cosmetic dispersions
- Specialty chemical slurries
- Pharmaceutical suspensions after compatibility review
- Small or medium batch wet processing materials
- Products requiring flexible vessel changeover
Target Particle Size / Control
Fineness depends on grinding media, basket design, speed, residence time, viscosity and formulation. Catalogue information references fine dispersion capability around micron scale under suitable conditions; testing is recommended.
Capacity Range
Capacity depends on basket size, vessel volume, viscosity and target fineness. Model-specific data should be confirmed from the URS and material test plan.
Pharmaceutical project review
Pharmaceutical Considerations And Optional Configurations
Selection should consider cleanability, containment, documentation expectations, utility conditions and the way the machine connects to upstream and downstream process steps.
Pharmaceutical Considerations
- Confirm cleaning access for the basket, screen and media-contact surfaces.
- Review product recovery and changeover requirements.
- Assess material compatibility of wetted parts and grinding media.
- Documentation support can be included according to project scope.
Optional Configurations
- Different basket volumes
- Grinding media size selection
- Lift stand and vessel holding arrangement
- Temperature control review
- Integration with premix disperser
Internal process links
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Material Testing And Equipment Selection
If the target particle size, capacity or material behavior is uncertain, use the selection guide to prepare material data before requesting a quotation.
RFQ support
Send Material Information For Equipment Selection
Send material information, current process step, target particle size, capacity, layout or testing requirements. Our engineer will review the data and suggest a suitable equipment configuration or test direction.
Applications, Benefits And Technical Options
Applications
- Batch wet grinding of specialty materials
- Fine dispersion for pigment or cosmetic products
- Pharmaceutical material evaluation after URS review
- Small to medium batch process development
- Pilot scale wet dispersion trials
Key Benefits
- Flexible batch processing with vessel-based operation
- Combines dispersing and grinding action in one head
- Useful where frequent product changeover is expected
- Can support smaller batch sizes than full circulation systems
- Material testing recommended for final fineness targets
Technical Options
- Basket size and grinding media selection
- Lift stand and vessel arrangement
- Variable speed control
- Cooling or temperature monitoring review
- Contact material selection by product compatibility
Quotation input
What Information Is Needed For Quotation
A clearer URS and layout package helps the engineering team confirm equipment scope, capacity assumptions, containment expectations and documentation needs.
Material name, powder or slurry characteristics, bulk density, viscosity if applicable, moisture level and sensitivity to heat or shear.
Feed particle size, target particle size or dispersion requirement, and whether a material test is required before final selection.
Required capacity per batch or per hour, expected operating hours and current upstream/downstream process equipment.
Containment, dust extraction, cleanroom, cleaning, stainless steel contact part and documentation expectations.
Available URS, layout, BOQ, drawing, process flow, material safety data and preferred FAT/SAT/IQ/OQ support scope if required.
Ready To Discuss A Powder Handling Project?
Send your URS, layout, BOQ, powder characteristics or required capacity. Our engineer will review the process step and suggest suitable powder handling equipment or a complete processing line concept.
FAQ
Frequently Asked Questions
How is a basket mill different from a nano bead mill?+
A basket mill is often used for flexible batch wet grinding, while a nano bead mill is usually selected for circulation grinding and finer dispersion targets.
What fineness can a vertical basket mill reach?+
Catalogue information references fine dispersion capability under suitable conditions, but final fineness depends on material, media, time and testing.
What should be supplied for quotation?+
Provide batch volume, viscosity, solids content, target fineness, vessel details, cleaning expectations and any test requirement.
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