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 XQM-40 requires properly sealed agate grinding jars to contain sample material and prevent contamination during operation. Electrical safety and rotational speed limits must be strictly observed to avoid mechanical failure or personal injury.
- Jar Sealing: Seal the agate grinding jars using the adjustable graduated scale to maintain containment during milling.
- Maximum Rotation Speed: Do not exceed a jar rotation speed of 390 rpm for the XQM-40 model to prevent mechanical overload.
- Feed Particle Size: Limit feed particle size to ≤10 mm for soil samples and ≤3 mm for other materials to ensure effective grinding.
- Electrical Supply: Operate the mill only on a 220V AC power supply with proper grounding to avoid electrical hazards.
- Vacuum Grinding Compatibility: When performing vacuum grinding, confirm that the jar seals are leak-tight and compatible with reduced pressure.
These steps guide safe and effective use of the XQM-40 for sample preparation. All operations should be performed with sealed jars and within rated speed limits.
Required Equipment: Agate grinding jars with adjustable sealing mechanism
- Adjust Jar Sealing
Adjust the sealing pressure of the agate grinding jars using the graduated scale to ensure a secure closure. - Load Sample
Load the sample into the jar with a feed particle size not exceeding 10 mm for soil or 3 mm for other materials. - Select Grinding Mode
Select the desired grinding mode from dry, wet, or vacuum options as supported by the machine. - Set Rotation Speed
Set the jar rotation speed within the range of 0 to 390 rpm for the XQM-40 model. - Start Milling
Start the milling process, allowing the jars to rotate reversely around their own axes while revolving around the turntable axis.
How does the lower maximum jar rotation speed of 390 r/min on the XQM-40 affect its grinding performance compared to smaller XQM models that reach speeds above 1000 r/min?
The XQM-40 prioritizes sample volume capacity over maximum impact speed, using a 5.5 kW motor to drive four 250 ml agate jars with a revolution diameter of 430 mm, which compensates for the lower 390 r/min jar speed through larger jar diameter and enhanced planetary action. This configuration still achieves discharge fineness down to 0.1 μm for soil samples, while enabling high-throughput processing of up to 1,000 ml total volume per batch. For extremely hard materials that require higher impact energies, a smaller model like the XQM-0.2 with 1,160 r/min may be more efficient, but for soil preparation the XQM-40 delivers sufficient energy with superior throughput.
Is the XQM-40 compatible with grinding media and jars made from materials other than agate for processing different sample types?
Yes, the XQM-40 supports a broad range of jar and ball materials including zirconia ceramic, silicon nitride, stainless steel, tungsten carbide, and others listed in the supporting products section, allowing adaptation to different contamination and wear requirements. However, the standard configuration includes four 250 ml agate jars and 700 agate grinding balls specifically for soil heavy metal analysis to avoid metal contamination. For non-soil samples with feed size up to 3 mm, alternative jar materials should be selected based on sample hardness and desired purity, and the jar holder inner diameter of 250 mm is compatible with jars of various materials of matching dimensions.
What are the key infrastructure and handling requirements for safely operating the XQM-40 during extended grinding runs?
The XQM-40 requires a stable 220 V AC power supply and a robust, level surface capable of supporting its 656 kg weight and vibration loads during continuous operation up to 48 hours. The four agate grinding jars have sealing pressure adjustable via a graduated scale, which must be correctly set before each run to prevent leakage, especially in wet or vacuum grinding modes. The overall dimensions of 1400×880×1070 mm necessitate adequate clearance for loading jars and access to the electric screener, which holds up to seven layers of 200 mm sieves for post-grinding particle size analysis.
The Atomfair XQM-40 integrates a planetary ball mill with an electric screener, offering high-throughput soil grinding to submicron particle sizes (as fine as 0.1 μm) using four 250 ml agate grinding jars. While its 48-hour continuous operation capability and adjustable sealing pressure make it ideal for heavy metal soil analysis, the unit's 656 kg weight and three-phase motor requirement demand substantial lab infrastructure.
Positive
- Submicron grinding with large capacity: Four 250 ml agate jars can grind soil samples to as fine as 0.1 μm, and the mill supports simultaneous operation of two or four jars for high throughput.
- Flexible grinding modes and continuous operation: Supports dry, wet, and vacuum grinding with adjustable jar sealing pressure, and can run continuously for up to 48 hours under full load.
Trade-offs
- Three-phase power infrastructure required: The XQM-40 uses a 5.5 KW three-phase motor with variable frequency controller, necessitating three-phase electrical supply or a phase converter in most laboratories.
- Large footprint and heavy unit: Weighing 656 kg and measuring 1400x880x1070 mm, the machine requires dedicated floor space and may need reinforced flooring for safe installation.
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).
