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.
This document outlines critical operational constraints for the Atomfair XQM-20 planetary ball mill. It highlights electrical safety, mechanical hazard mitigation, and material containment requirements to prevent equipment damage and operator injury.
- Electrical Grounding Requirement: Ensure the machine is connected to a properly grounded 220V AC outlet to prevent electrical shock.
- Jar Sealing Pressure: Confirm agate grinding jars are sealed correctly using the graduated scale adjustment before operation to prevent sample leakage and jar breakage.
- Feed Particle Size Constraint: Limit feed particle size to ≤10 mm for soil samples to avoid overloading the mill and ensure efficient grinding.
- Rotation Speed Limit: Do not exceed the maximum jar rotation speed of 430 r/min to prevent mechanical failure and sample overheating.
- Dust Containment: Operate the mill in a well-ventilated area or with dust collection when processing dry samples to minimize airborne particulate exposure.
This procedure details the safe and effective operation of the planetary ball mill for soil sample preparation. Follow each step sequentially to ensure sample integrity and prevent injury.
Required Equipment: Agate grinding jars, Graduated scale adjustment mechanism, Personal protective equipment (safety goggles and gloves), Sample collection containers
- Inspect Equipment
Inspect the power cord and plug for damage, and verify the machine is placed on a stable, level surface. - Prepare Grinding Jars
Load soil samples and grinding balls into the agate jars, ensuring the total volume does not exceed two-thirds of the jar capacity. - Seal Jars
Seal the jar lids using the graduated scale adjustment mechanism, applying uniform pressure to achieve an airtight closure. - Mount Jars on Mill
Secure the sealed jars onto the jar holders, confirming they are properly locked in place before starting rotation. - Set Rotation Parameters
Set the revolution speed within the recommended range (35-335 r/min) and jar speed not exceeding 430 r/min according to the desired grinding fineness. - Start Grinding
Press the start button and allow the mill to run for the required duration, monitoring for unusual noise or vibration. - Shut Down and Unload
Wait for the mill to completely stop rotating before opening the lid and removing the sample jars.
What is the trade-off between grinding jar capacity and achievable particle size for the XQM-20 when processing soil samples for heavy metal analysis?
The XQM-20 achieves discharge particle sizes as fine as 0.1 μm from feed particles ≤10 mm, but this requires the full 48-hour continuous full-load capacity of its 4 kW motor at a maximum jar rotation speed of 430 r/min. Using 4 x 250 ml agate jars with 700 agate balls maximizes throughput, but achieving sub-micron fineness in soil matrices extends grinding time, trading batch size for final particle size.
Can the XQM-20 be used with grinding jars made of materials other than agate, and what are the implications for heavy metal soil analysis?
The standard configuration includes agate jars to prevent metal contamination in heavy metal soil analysis. While the manufacturer offers jars in stainless steel, zirconia, alumina, and other materials, substituting non-agate jars risks introducing trace metals from jar wear into the sample. For accurate heavy metal quantification, agate (high-purity silica) is mandatory to maintain sample integrity.
What are the electrical and space requirements for installing the XQM-20 planetary ball mill in a laboratory?
The XQM-20 requires a 220 V AC power supply and a 4 kW motor with a variable frequency controller providing stepless speed regulation. The unit measures 1200×790×930 mm and weighs 392 kg, so it needs a sturdy, vibration-isolated bench or floor stand. Continuous full-load operation is rated for 48 hours, requiring adequate ventilation to dissipate heat from the 4 kW motor.
This large-scale planetary ball mill integrates four 250 ml agate grinding jars with an electric screener for particle size classification down to 20 microns, offering dry, wet, and vacuum grinding modes for soil heavy metal analysis.
Positive
- Multiple grinding modes supported: Supports dry, wet, and vacuum grinding, enabling flexible sample preparation under controlled atmospheres for diverse analytical requirements.
- Integrated sieving and particle analysis: Includes an electric screener with sieves from 20 to 200 mesh, allowing immediate particle size classification and reducing sample handling steps.
Trade-offs
- Large footprint and heavy weight: The XQM-20 dimensions of 1200×790×930 mm and net weight of 392 kg require dedicated lab space and floor-loading consideration.
- Agate jar pressure sensitivity: Sealing pressure of the agate jars must be precisely adjusted via the graduated scale to prevent leakage or jar fracture, demanding operator training.
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).
