Description
Soil Grinding and Screening Machine
Product Introduction
This machine is designed for heavy metal analysis in soil, equipped with 4 agate grinding jars. The sealing pressure of the agate grinding jars is adjustable via a graduated scale. The grinding jars rotate reversely around their own axes while revolving around the turntable axis. Samples inside the jars collide and rub against each other at high speed, achieving sample crushing, grinding, mixing and dispersion. It supports dry grinding, wet grinding and vacuum grinding. Two or four grinding jars can work simultaneously at a time.
Technical Parameter Table of Planetary Ball Mill
| No. | Model | Style | Jar Rotation Speed | Jar Holder Inner Diameter (mm) | Motor Power | Jar Revolution Diameter (mm) | Overall Dimensions (mm) | Net Weight (kg) |
| 1 | XQM-0.2 | Mini Type | 0~1160 r/min | 50 | 90W | Φ111 | 420×260×310 | 25 |
| 2 | XQM-0.2S | Mini Glove Box Type | 0~1160 r/min | 50 | 90W | Φ111 | Main Unit: 390×220×270Control Box: 200×180×240 | 29 |
| 3 | XQM-0.4A | Semi-Circular Type | 0~870 r/min | 80 | 250W | Φ140 | 530×300×360 | 34 |
| 4 | XQM-6 | – | 0~670 r/min | 134 | 0.75KW | Φ234 | 760×470×580 | 100 |
| 5 | XQM-4A | Semi-Circular Type | 0~670 r/min | 134 | 0.75KW | Φ234 | 760×470×600 | 85 |
| 6 | XQM-(8-12) | – | 0~580 r/min | 162 | 1.5KW | Φ275 | 900×600×640 | 168 |
| 7 | XQM-(8-12)A | Semi-Circular Type | 0~580 r/min | 162 | 1.5KW | Φ275 | 880×560×642 | 150 |
| 8 | XQM-16A | Semi-Circular Type | 0~510 r/min | 182 | 3KW | Φ320 | 950×600×710 | 205 |
| 9 | XQM-20 | – | 0~430 r/min | 222 | 4KW | Φ385 | 1200×790×930 | 392 |
| 10 | XQM-40 | – | 0~390 r/min | 250 | 5.5KW | Φ430 | 1400×880×1070 | 656 |
| 11 | XQM-60 | – | 0~260 r/min (1:1.5) | 275 | 7.5KW | Φ490 | 1600×1070×1250 | 950 |
| 12 | XQM-100 | – | 0~240 r/min (1:1.5) | 326 | 11KW | Φ578 | 1750×1140×1330 | 1300 |
| 13 | XQM-200 | – | 0~215 r/min | 460 | 22KW | Φ738 | 2670×1600×2804 | 2725 |
Technical Specifications of Soil Grinding and Screening Machine
- Voltage: 220V AC
- Feed Particle Size: ≤10 mm for soil samples, ≤3 mm for other materials; Discharge Particle Size: as fine as 0.1 μm
- Rotation Speed (r/min): Revolution: 35-335 r/min; Rotation: 70-670 r/min
- Three-Phase Motor Variable Frequency Controller Power: 0.75KW (with power display electronic monitoring device; Continuous operation timer (min); Forward-reverse commutation cycle (min))
- Speed Control Mode: Stepless speed regulation, automatic timing for forward and reverse rotation, automatic stop
- Continuous Working Time (Full Load): 48 hours
- Electric Screener: Capable of holding seven layers of sieves with a diameter of 200 mm; Screening range: 20-200 mesh (20 microns), digital display; Screening vibration frequency: 1400 rpm
Standard Configuration of Soil Grinding and Screening Machine
- Main grinding unit
- 4 pcs of 250 ml agate grinding jars, 700 pcs of agate grinding balls
- Electric screener
- A complete set of round frame sieves (20, 40, 60, 80, 100, 120, 140, 160, 180, 200 mesh) and base
Working Principle
This machine is used for heavy metal analysis in soil, equipped with 4 agate grinding jars. The sealing pressure of the agate grinding jars is set by a graduated scale. The jars revolve around the turntable axis and rotate reversely around their own axes at the same time. Samples in the jars collide and rub against each other during high-speed movement, so as to crush, grind, mix and disperse samples. It can be used for dry grinding, wet grinding and vacuum grinding. Two or four grinding jars can operate at the same time.
Supporting Products Supply
We also supply various grinding balls: stainless steel balls, zirconia balls, alumina balls, PU balls, cemented carbide balls, tungsten balls, agate balls, hard alloy balls, silicon nitride balls, high wear-resistant steel balls, manganese steel balls, nylon balls, glass balls and other special metal material balls.
We also provide grinding jars of various materials: agate, alumina corundum ceramic, zirconia ceramic, silicon nitride ceramic, silicon carbide ceramic, stainless steel, wear-resistant steel, manganese steel, nylon, polyurethane, hard alloy, crystal glass, etc.
The Atomfair XQM-16A planetary ball mill requires a 220V AC grounded power supply to operate safely. The agate grinding jars must be sealed to the correct pressure before operation to contain samples and prevent cross-contamination.
- Electrical Supply: Connect the ball mill to a properly grounded 220V AC power source to prevent electrical hazards.
- Jar Sealing: Inspect and adjust the graduated sealing pressure on each agate jar before starting the grinding cycle.
- Feed Particle Size: Limit feed material particle size to ≤10 mm for soil samples to prevent jamming and excessive wear.
- Dry Grinding Precautions: When performing dry grinding, ensure all jar lids are tightly sealed to contain fine dust.
- Vacuum Grinding: Before vacuum grinding, verify that the jar lids and gaskets are in good condition to maintain vacuum integrity.
This guide provides step-by-step instructions for safely operating the planetary ball mill to grind soil samples. It includes preparation, sealing, and post-grinding steps to ensure sample integrity and machine safety.
Required Equipment: Planetary Ball Mill, Agate Grinding Jars
- Inspect Equipment
Inspect the ball mill and agate jars for any damage or contamination before use. - Load Sample
Load the prepared soil sample into each agate jar, ensuring particle size does not exceed 10 mm. - Adjust Jar Sealing
Adjust the sealing pressure on each jar using the graduated scale to achieve a proper seal. - Install Jars
Place the sealed jars onto the jar holders and secure them in the correct positions. - Set Parameters
Set the desired rotation speed between 35 and 335 r/min and the grinding time on the control panel. - Start Grinding
Start the grinding cycle and monitor the machine for unusual noise, vibration, or leaks. - Post-Grinding Cool Down
After the cycle completes, allow the jars to cool before opening to release any pressure buildup.
How does the adjustable sealing pressure of the agate jars on the XQM-16A affect particle size distribution and contamination control when grinding soil to 0.1 μm for heavy metal analysis?
The adjustable sealing pressure, set via the graduated scale, directly controls the grinding environment and ensures consistent particle size down to 0.1 μm while preventing leakage that could introduce contamination. The use of 4 agate grinding jars and 700 agate balls minimizes metal interference, making this configuration critical for trace heavy metal analysis. Proper sealing also supports dry, wet, and vacuum grinding modes without compromising sample integrity.
Why does the XQM-16A require a feed particle size of ≤3 mm for non-soil materials instead of ≤10 mm for soil, and what does this mean for sample preparation of other materials?
For non-soil materials, the ≤3 mm feed limit prevents damage to the agate jars and inefficient grinding due to the jar rotation speed of 0–510 r/min and a revolution diameter of 320 mm, which generate high impact forces unsuitable for coarser particles. This constraint means non-soil samples must be pre-crushed to ≤3 mm before milling, limiting direct processing of as-received materials larger than that size. Soil samples are exempted because their friability and intended application accept a ≤10 mm feed.
What power, floor loading, and vibration isolation requirements must be met to install the XQM-16A with its integrated electric screener for continuous 48-hour operation?
The XQM-16A requires a 220V AC single-phase power supply and a 0.75KW three-phase motor variable frequency controller to manage the 3KW motor, and the 205 kg net weight demands a reinforced workbench or floor capable of supporting the static load. The integrated electric screener vibrates at 1400 rpm, necessitating vibration damping between the main unit and screening assembly to avoid resonance during full-load continuous runs up to 48 hours. Overall dimensions of 950×600×710 mm require adequate clearance for ventilation and jar access.
The XQM-16A planetary ball mill with integrated electric screener is specifically engineered for soil heavy metal analysis, offering 4×250 ml agate jars and multi-mode grinding (dry, wet, vacuum) to achieve sub-micron particle sizes with minimal contamination, while the built-in 20-200 mesh sieve allows direct particle classification without separate equipment.
Positive
- Soil heavy metal analysis optimized: The machine is purpose-built for trace metal studies in soil, featuring 4 agate grinding jars with adjustable sealing pressure that minimize metallic contamination—critical for accurate heavy metal quantification.
- Multi-mode grinding with integrated screening: Supports dry, wet, and vacuum grinding with stepless speed regulation (revolution 35-335 rpm) and an electric screener covering 20-200 mesh, enabling in-process particle size control without additional instrumentation.
Trade-offs
- Substantial weight and footprint: The unit weighs 205 kg and occupies 950×600×710 mm, requiring reinforced laboratory benching and potentially mechanical handling equipment for installation and repositioning.
- Pre-grinding required for large samples: Feed particle size is limited to ≤10 mm for soil and ≤3 mm for other materials; larger particles must be pre-crushed before processing, adding an extra preparation step.
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). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
