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Technical Resources & Wet Milling Knowledge Center

Technical articles, application guides and equipment selection resources for wet grinding, dispersion and powder processing from POLYC MACHINE.

Technical articles, selection guides, and application notes from our engineering team.

Technical Articles and Guides

Basket mill specifications and selection guide: vessel capacity, motor power, media size and fineness for batch grinding of colourants and pigment pastes
Basket mills grind in the production vessel, so selection depends on batch size, media size, tip speed and how quickly you need to change over.Engineering guide

Basket Mill Specifications and Selection Guide

A basket mill grinds inside the production vessel, circulating material through a media-filled basket so that dispersion and fine grinding happen in one place. There is …

Zirconia grinding media vs glass beads comparison for bead mill wet grinding of ink and paint
GRINDING MEDIA COMPARISONEngineering guide

Zirconia Grinding Media vs Glass Beads: Which Media Should You Choose?

Zirconia beads cost several times more than glass beads, but in ultrafine grinding they often pay for themselves. The difference comes down to density: zirconia at …

Scale-up from laboratory to production equipment key considerations for process development
Scale-UpEngineering guide

Scale-Up from Laboratory to Production: Key Considerations

Scale-up from laboratory to production transfers a tested mixing or wet-grinding process to larger equipment while preserving product quality, safety and process economics. Volume alone is …

Paint Production Line Equipment Power Sizing - POLYC MACHINE
A paint line is a system, not a list of machines. Capacity is set by the slowest stage, so sizing must balance dosing, dispersion, milling and filling.Engineering guide

Paint Production Line Equipment and Sizing

A paint production line is a system in which total capacity is determined by the slowest stage. Specifying each machine to its own optimum without balancing …

High Viscosity Mixer Selection Guide Slurries Liquids - POLYC MACHINE
Above roughly 50,000 cP, circulation rather than shear becomes the limiting factor. This guide maps viscosity ranges to the right mixer type.Engineering guide

High Viscosity Mixer Selection Guide

High viscosity mixing is governed by a different physical principle than dispersion. Below roughly 50,000 cP, a high-speed disperser works because material flows readily to the …

Troubleshooting High Speed Disperser: 6 Common Problems and Fixes
Six recurring disperser faults, why they happen, and the corrective actions that resolve them without replacing the machine.Engineering guide

High Speed Disperser Troubleshooting: 6 Fixes

High speed disperser problems usually present as slow dispersion, poor fineness despite long cycles, visible air entrainment, excessive temperature rise, or a vortex that reaches the …

How to Choose the Right Bead Mill for Ink & Paint Production
Paint plants optimise for throughput and shade changeover; ink plants work to tighter specifications on smaller batches. How that translates into equipment choice.Engineering guide

How to Choose a Bead Mill for Ink and Paint

Paint and ink producers face different milling priorities, and the equipment that suits one often underperforms for the other. Paint plants usually optimise for throughput and …

High speed disperser specifications and selection guide: vessel capacity, motor power, disc diameter, tip speed and vacuum capability for coatings and inks
Specify a disperser by tip speed, disc-to-vessel ratio, vessel geometry and power sizing, using the calculation method set out here.Engineering guide

High Speed Disperser Specs and Selection Guide

A high speed disperser appears simple, but it is the machine most frequently mis-specified in a coatings or ink plant. Selection is usually made on motor …

How to Reduce Cleaning Time During Basket Mill Batch Changeover
In multi-colour plants, changeover time usually limits capacity more than grinding speed. Most of it is designable and procedural.Engineering guide

Reduce Basket Mill Cleaning Time on Changeover

For plants running many colours or formulations, effective capacity is usually determined by changeover time rather than by grinding speed. A basket mill already has an …

Bead mill specifications and selection guide: horizontal disc type, pin type and basket mill capacity, power and fineness comparison
Specify a bead mill from the fineness target first, then validate throughput, then select contact materials and cleaning provisions.Engineering guide

Bead Mill Selection Guide: Specifications

Selecting a bead mill is not a matter of choosing a chamber volume. The decision is driven by target particle size, millbase rheology, validated throughput, and …

Bead mill grinding media comparison: zirconia, glass and steel beads for wet grinding applications
Media choice affects fineness, throughput, contamination and operating cost. Zirconia, glass and steel each have a clear place in production milling.Engineering guide

Bead Mill Media: Zirconia vs Glass vs Steel

Grinding media choice determines energy transfer per contact, wear rate, product contamination and ultimately the total cost of milling. Zirconia, glass and steel differ substantially on …

How to Select Grinding Bead Size for Ultrafine Milling
Media size sets the practical fineness limit, determines throughput and constrains separator design. Selecting it correctly is the difference between reaching specification economically and fighting the process.Engineering guide

Grinding Bead Size Selection for Ultrafine Milling

Grinding media size is the single most influential variable in ultrafine milling. It determines the practical fineness limit, because the gap between beads limits how small …

Bead Mill Grinding Efficiency Factors - POLYC MACHINE
Seven controllable factors determine bead mill grinding efficiency. Checked in the right order, most efficiency losses are recoverable without new equipment.Engineering guide

7 Factors That Affect Bead Mill Grinding Efficiency

When a bead mill underperforms, the cause is almost always one of seven controllable factors rather than a machine defect. In the order we check them …

Top Chinese Bead Mill Manufacturers 2026 Guide
Compare leading Chinese bead mill manufacturers: POLYC, Wuxi Hongyuan, Shanghai ELE and moreEngineering guide

Top Chinese Bead Mill Manufacturers 2026 Guide

Bead mills are the most widely used wet grinding equipment in modern industrial processing, delivering controlled particle-size reduction for pigments, coatings, inks, agrochemicals, battery materials, ceramics …

Top Chinese Basket Mill Manufacturers 2026 Guide
Compare leading Chinese basket mill manufacturers for batch paint and ink productionEngineering guide

Top Chinese Basket Mill Manufacturers 2026 Guide

Basket mills are the workhorse of batch production for paints, inks, coatings, and adhesives, offering fast color changes, easy cleaning, and flexible batch sizes. Chinese manufacturers …

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