PBM-4A SEMI-CIRCULAR PLANETARY BALL MILL 0.75KW 4 JARS SOIL GRINDERLABORATORY GRADE EQUIPMENT
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TAILORED SOLUTIONS FOR RESEARCH
Contact our engineering team for technical support or official quotations.
EMAIL: inquiry@atomfair.com
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
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The PBM-4A requires grinding jars and balls to be ordered separately with material compatibility verified to prevent cross-contamination. Jar sealing pressure must be adjusted via the graduated scale to suit the selected grinding mode and sample type.
- Jar Material Selection: Select grinding jar and ball materials compatible with the target sample to avoid contamination and ensure chemical resistance.
- Sealing Pressure Adjustment: Adjust the sealing pressure using the graduated scale to maintain containment during dry, wet, or vacuum grinding operations.
- Grinding Mode Compatibility: Confirm that the jar sealing and sample preparation are appropriate for the chosen dry, wet, or vacuum grinding mode.
- Continuous Operation Limits: Ensure adequate ventilation and thermal management for extended runs up to 48 hours at full load as specified.
This procedure guides the user through sample preparation, grinding, and particle size separation using the integrated ball mill and electric screener. Proper material selection and parameter adjustment are critical for achieving sub-micron particle sizes and avoiding contamination.
Required Equipment: Grinding jars (4 x 1000 ml, material selected per sample), Grinding balls (40% jar volume, material matched to jar), Electric screener with seven-layer sieve set (20–200 mesh)
- Select Jar and Ball Materials
Select grinding jar and ball materials compatible with your target sample to prevent cross-contamination and ensure chemical inertness. - Load Jars with Sample and Media
Fill each jar to approximately 40% of its capacity with grinding balls and add the soil sample (feed ≤10 mm) up to the recommended fill level. - Adjust Sealing Pressure
Adjust the jar sealing pressure using the graduated scale to ensure a tight seal appropriate for the intended grinding mode (dry, wet, or vacuum). - Set Grinding Parameters
Set the rotation speed (0–670 r/min), grinding time, and forward-reverse commutation schedule on the variable frequency controller. - Initiate Grinding Cycle
Start the grinding cycle and monitor operation for the desired duration, up to 48 hours of continuous full-load operation. - Transfer to Electric Screener
After grinding, transfer the ground sample to the electric screener fitted with the appropriate sieve stack (20–200 mesh) for particle size separation. - Collect Sieve Fractions
Collect the desired sieve fractions from the base and each sieve layer for subsequent analysis or further processing.
What jar materials are recommended for soil heavy metal analysis to avoid cross-contamination?
For soil heavy metal analysis, agate (natural SiO₂) jars are recommended to avoid metal contamination, as they are marketed for zero-metal analysis. The PBM-4A supports jars in materials including agate, Al₂O₃, YSZ, stainless steel, WC-Co, PU, ceramic, and nylon. The source explicitly states to select jar and ball materials compatible with your target material to avoid cross-contamination.
Can the PBM-4A operate continuously for long-duration soil grinding without overheating?
Yes, the PBM-4A is designed for 48-hour continuous operation at full load. It features an industrial-grade 0.75 kW motor with variable frequency controller and automatic forward-reverse commutation and timing, enabling uninterrupted long-duration grinding for high-throughput soil sample preparation.
What is the maximum feed size and achievable particle size for soil samples in the PBM-4A?
The PBM-4A accepts soil feed up to 10 mm and can achieve output particle sizes as fine as 0.1 μm. This is accomplished through planetary high-energy impact with adjustable jar sealing pressure via a graduated scale, supporting dry, wet, and vacuum grinding modes with two or four 1000 ml jars operating simultaneously.
The PBM-4A semi-circular planetary ball mill delivers sub-micron grinding down to 0.1 μm from soil feed up to 10 mm, integrates an electric screener with 20–200 mesh sieves for complete sample preparation, and supports 48-hour continuous operation at full load. Grinding jars and media must be sourced separately, and material compatibility must be managed to avoid cross-contamination.
Positive
- Ultrafine grinding capability: Achieves output particle sizes as fine as 0.1 μm from soil feed ≤10 mm, enabling thorough heavy metal analysis in environmental and geological sample preparation.
- Integrated sieving system: Includes an electric screener with seven layers of 200 mm sieves spanning 20–200 mesh, providing a complete grinding and screening workflow in a single instrument.
Trade-offs
- Separate jar and media order: Grinding jars and balls are not included with the main unit and must be ordered separately, adding procurement lead time and initial setup cost.
- Critical material compatibility: Jar and ball material must be selected to avoid cross-contamination with target samples; the available options (WC-Co, Al₂O₃, agate, YSZ, SS, PU, ceramic, nylon) require application-specific choice.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
