PBM-20 PLANETARY BALL MILL 4KW SOIL GRINDER 20L HEAVY METAL ANALYSISLABORATORY 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-20 requires a dedicated electrical supply capable of delivering 4 kW continuous power and must be placed on a level, vibration-absorbing surface. Grinding jar sealing pressure must be set via the graduated scale to prevent sample leakage during high-energy planetary motion.
- Material Compatibility Constraint: Select grinding jar and ball materials that are chemically inert to the sample to avoid cross-contamination.
- Continuous Operation Limit: The system supports 48-hour continuous operation at full load, requiring adequate ventilation to dissipate heat from the 4 kW motor.
- Sealing Pressure Adjustment: Adjust the jar sealing pressure using the graduated scale to ensure containment of fine particles and prevent atmospheric ingress during vacuum grinding.
- Electrical Safety: Ensure the unit is properly grounded and connected to a compatible power source with appropriate overcurrent protection.
- Installation Requirement: The 392 kg unit must be installed on a reinforced floor or bench capable of supporting its weight and dynamic loads.
This procedure describes the safe operation of the PBM-20 planetary ball mill for ultrafine grinding of soil samples. The integrated electric screener is used after grinding to classify the output to the desired mesh size.
Required Equipment: PBM-20 Planetary Ball Mill, Electric Screener, Grinding Jars, Grinding Balls
- Select Compatible Jar and Ball Materials
Select and install the appropriate grinding jars and balls based on sample material compatibility to avoid contamination. - Load Jars with Balls and Sample
Load each jar with grinding balls to approximately 40% of the jar volume and add the soil sample. - Secure Jars and Adjust Sealing Pressure
Adjust the jar sealing pressure using the graduated scale and secure the jars onto the mill. - Set Grinding Parameters
Set the desired rotation speed, grinding time, and direction using the variable frequency controller. - Select Grinding Mode and Start
Select the grinding mode (dry, wet, or vacuum) and start the mill. - Stop and Cool Jars
After the grinding cycle completes, stop the mill and allow the jars to cool before opening. - Sieve Ground Material
Transfer the ground material to the electric screener and sieve through the desired mesh stack (20–200 mesh) for particle size classification.
What particle size can the PBM-20 achieve for soil samples, and how does the adjustable sealing pressure contribute to grinding efficiency?
The PBM-20 can grind soil feed ≤10 mm down to an output particle size as fine as 0.1 μm. The sealing pressure of the grinding jars is adjustable via a graduated scale, allowing optimization for different sample hardness and preventing leakage during high-energy planetary impact, which ensures consistent sub-micron refinement.
Which grinding jar material is recommended for heavy metal analysis in soil to prevent contamination?
For heavy metal analysis in soil, agate (natural SiO₂) jars are recommended because they are metal-free and minimize cross-contamination. The PBM-20 accommodates 5 L jars in materials including agate, Al₂O₃, YSZ, WC-Co, stainless steel, PU, ceramic, and nylon, but agate is specifically designed for zero-metal analysis.
What is the screening range and capacity of the electric screener included with the PBM-20?
The included electric screener holds seven layers of 200 mm diameter sieves covering a mesh range of 20–200 mesh (20 micron) with digital display and 1400 rpm vibration frequency. This enables simultaneous classification of ground soil into multiple size fractions for comprehensive heavy metal analysis.
The ATOMFAIR PBM-20 planetary ball mill (4 kW, 20 L) integrates a seven-layer electric screener for soil sample preparation targeting heavy metal analysis, capable of sub-micron output from 10 mm feed but requiring 392 kg floor-mounted installation and separate procurement of grinding jars and media unless ordered as a bundle.
Positive
- Integrated grinding and screening system: The standard configuration includes both the planetary ball mill and an electric screener with seven layers of 200 mm sieves (20–200 mesh), enabling complete soil sample preparation in a single workflow.
- Ultrafine output down to 0.1 µm: From soil feed of ≤10 mm, the PBM-20 consistently achieves particle sizes as fine as 0.1 µm, meeting rigorous requirements for heavy metal analysis.
Trade-offs
- Grinding jars and balls order separately: Grinding jars (4 pcs of 5 L) and balls must be purchased separately from the main unit unless a bundle variation is selected; material compatibility with the sample must be considered to avoid contamination.
- Heavy weight and large footprint: At 392 kg net weight and dimensions of 1200×790×930 mm, the PBM-20 requires a reinforced floor and dedicated lab space for installation and operation.
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).
