Wet Grinding Equipment
Pin-Type Nano Bead Mill
BSM pin-type nano bead mills for wet grinding of coatings, battery materials, and advanced ceramics, with 20–400 L chambers and model-specific media sizes.
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Prepared from Yushun’s 2026 product knowledge base. Model data is preliminary selection guidance. Technical translations and final configurations require engineering review; flow and capacity figures are not performance guarantees for every material.
Product Overview
How it works
The BSM series uses a pin-type rotor to transfer energy to the grinding media during wet grinding. The rotor and chamber can be configured in ceramic materials when metal contamination is a concern. Cooling, sealing, and variable-frequency control support adjustment to the selected process.
How to choose a pin-type nano mill
Specify feed and target particle sizes, particle-size distribution requirements, viscosity, purity limits, temperature sensitivity, and required throughput. Use the model-specific media range in the table; the BSM-400 range starts at 0.5 mm, not 0.3 mm.
Pin-type vs. disc high-flow grinding
Compare the shear and fineness requirements with continuous production needs. The disc high-flow bead mill is another option for coatings, inks, and industrial slurries. Neither series should be selected on chamber volume or the word “nano” alone.
Testing and upstream preparation
Use a laboratory bead mill to evaluate the formulation and process. A high-speed disperser can provide upstream wetting and pre-dispersion. See the lithium battery slurry application for related processing considerations.
Equipment configuration
Core Features
- High-energy pin-type rotor for wet grinding and dispersion.
- Optional ceramic rotor and grinding chamber to help reduce metal contamination.
- Configurable triple cooling system for temperature-sensitive processes.
- Double mechanical seal configuration.
- Variable-frequency control for adjustment to different process conditions.
- Configurations for continuous wet grinding, with contact materials and controls matched to the application.
Configuration guide
Technical Specifications
| Series | BSM |
|---|---|
| Effective grinding volume | 20–400 L across listed models |
| Motor power | 30–355 kW across listed configurations |
| Grinding media | Model-specific: 0.3–1.2, 0.3–1.4, 0.3–1.6, or 0.5–1.6 mm; see table |
| Process | Wet grinding and dispersion |
| Contact material option | Ceramic rotor and chamber available |
| Cooling and control | Configurable triple cooling; variable-frequency control |
Reference specifications require material testing and engineering review. Final configuration is defined in the project technical agreement.
| Model | Effective volume (L) | Motor power (kW) | Media diameter (mm) | Batch capacity (L) | Reference flow (kg/h) |
|---|---|---|---|---|---|
| BSM-20 | 20 | 30 | 0.3-1.2 | 100-1000 | 100-1500 |
| BSM-30 | 30 | 37-45 | 0.3-1.2 | 200-2000 | 300-2500 |
| BSM-60 | 60 | 75-90 | 0.3-1.4 | 300-3000 | 500-3500 |
| BSM-90 | 90 | 90-110 | 0.3-1.4 | 500-3500 | 700-4500 |
| BSM-150 | 150 | 185-200 | 0.3-1.6 | 800-5500 | 800-6000 |
| BSM-250 | 250 | 250-280 | 0.3-1.6 | 1000-7500 | 1000-15000 |
| BSM-400 | 400 | 315-355 | 0.5-1.6 | 3000-12000 | 5000-14000 |
| Model | Dimensions (mm) | Weight (kg) |
|---|---|---|
| BSM-20 | 1500 × 1050 × 1700 | 1400 |
| BSM-30 | 1800 × 1050 × 1750 | 1900 |
| BSM-60 | 2150 × 1300 × 2200 | 3000 |
| BSM-90 | 2465 × 1200 × 2000 | 5000 |
| BSM-150 | 2680 × 1370 × 2460 | 7000 |
| BSM-250 | 3400 × 1780 × 2640 | 8500 |
| BSM-400 | 5600 × 1750 × 2950 | 9000 |
Where it works
Application Industries
- Coatings and Printing Inks
- Lithium-Ion Battery Materials
- Agrochemical Formulations
- Advanced Ceramics
- Electronic Materials
- Cosmetics
- Nanocomposites
Technical questions
Frequently Asked Questions
What does the pin-type rotor do?
The rotor transfers energy through the grinding media to apply shear and support particle-size reduction. It can be evaluated for wet nano-grinding and dispersion, subject to formulation and process testing.
Does a nano bead mill guarantee a specific final particle size?
No. Final fineness depends on the material, feed size, media, operating conditions, and process. The supplied knowledge base does not specify a universal guaranteed final particle size for this series.
Can every BSM model use 0.3 mm media?
No. The table lists 0.3–1.2 mm for BSM-20/30, 0.3–1.4 mm for BSM-60/90, 0.3–1.6 mm for BSM-150/250, and 0.5–1.6 mm for BSM-400. Media selection also depends on the process.
How can metal contamination be reduced?
A ceramic rotor and ceramic grinding chamber can be selected. This helps reduce metal contamination but does not constitute a zero-contamination guarantee. Confirm material purity requirements and the complete wetted configuration.
What cooling and seal options are described?
The series uses double mechanical seals and can be configured with triple cooling to help control temperature rise. Required cooling performance must be determined for the formulation.
Can the mill process battery materials continuously?
The series can be evaluated for continuous wet grinding of battery materials, conductive dispersions, and ceramic separator slurries. Target particle size, purity, temperature, and throughput determine the configuration.
Are flow rate and grinding capacity fixed for each model?
No. Listed flow rates and batch capacities are reference values. Viscosity, target fineness, required output, and equipment configuration can change the operating range.
When should I compare a disc high-flow mill?
Compare the disc high-flow series when continuous flow and overall capacity are central requirements. Evaluate the pin-type series when strong shear and finer particle-size control are priorities; confirm either choice with material trials.
Engineering consultation
Discuss Your Process Requirements
Tell our engineers about your material, target particle size, viscosity, capacity, and production goals.