Description
Double Planetary Ball Mill
Product Introduction
The double planetary structure enables the large planetary disk to drive the small grinding jars in motion. The revolution radius and rotation speed of the grinding jars are larger than those of ordinary planetary ball mills of the same specification. The centrifugal force on the grinding balls is multiplied, and the collision, shearing and friction between the balls are significantly increased, improving grinding effect and efficiency. Some materials can be ground to nanometer scale. The double planetary ball mill is a typical high-efficiency and high-energy ball mill.
Application
The double planetary ball mill is a powder processing device for laboratory mixing, fine grinding and small-batch production of high-tech materials. It features an attractive and novel design, compact structure, easy operation, high working efficiency and uniform grinding fineness, making it an ideal choice for research, education, testing and production.It is widely used in electronics, magnetics, pharmaceuticals, ceramics, geology, mineral resources, metallurgy, building materials, chemical industry, light industry, cosmetics, environmental protection and other industries.
Product Features
The equipment shell adopts professional industrial design and is welded with thickened steel plate, featuring high strength, impact resistance, deformation resistance and stable appearance.Machined parts undergo strict heat treatment and CNC processing. The transmission gears are precision gears made of special materials, ensuring stable, safe and low-noise operation at high speed.
Technical Parameter Table
- Basic Specifications
| Model | Specification | Compatible Grinding Jar Size | Quantity | Remarks |
| SXQM-0.4 | 0.4L | 50–100ml | 4 pcs | 50ml vacuum grinding jar available |
| SXQM-1 | 1L | 250ml | 4 pcs | 50–100ml vacuum grinding jar available |
| SXQM-2 | 2L | 500ml | 4 pcs | 50–250ml vacuum grinding jar available |
| SXQM-4 | 4L | 1000ml | 4 pcs | 50–1000ml vacuum grinding jar available |
| SXQM-6 | 6L | 1500ml | 4 pcs | 50–1000ml vacuum grinding jar available |
- Operating Performance Parameters
| Model | Power Supply | Motor Power (kW) | Total Set Running Time (min) | Forward-Reverse Alternating Time (min) | Revolution (rpm) | Rotation (rpm) | Noise (dB) |
| SXQM-0.4 | 220V-50Hz | 0.75 | 1–9999 | 1–999 | 70–560 | 140–1120 | 58±5 |
| SXQM-1 | 220V-50Hz | 0.75 | 1–9999 | 1–999 | 70–560 | 140–1120 | 60±5 |
| SXQM-2 | 220V-50Hz | 0.75 | 1–9999 | 1–999 | 70–560 | 140–1120 | 60±5 |
| SXQM-4 | 220V-50Hz | 0.75 | 1–9999 | 1–999 | 70–560 | 140–1120 | 60±5 |
| SXQM-6 | 220V-50Hz | 0.75 | 1–9999 | 1–999 | 70–560 | 140–1120 | 60±5 |
- Motor & Dimensions
| Model | Motor Power (kW) | Speed Control | Net Weight (kg) | Overall Dimensions (mm) |
| SXQM-0.4 | 0.75 | Variable Frequency | 250 | 1150×800×760 |
| SXQM-1 | 0.75 | Variable Frequency | 250 | 1150×800×760 |
| SXQM-2 | 0.75 | Variable Frequency | 250 | 1150×800×760 |
| SXQM-4 | 0.75 | Variable Frequency | 250 | 1150×800×760 |
| SXQM-6 | 0.75 | Variable Frequency | 250 | 1150×800×760 |
Optional Accessories
We also supply various grinding balls: stainless steel balls, zirconia balls, alumina balls, PU balls, carbon steel balls, tungsten balls, agate balls, cemented carbide balls, silicon nitride balls, high-wear-resistant steel balls, manganese steel balls, nylon balls, glass balls and other special metal materials.
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, cemented carbide, crystal glass, etc.
This device operates with 220V-50Hz electrical supply and generates noise levels up to 65 dB. Safe use requires mechanical guarding, vibration monitoring, and adherence to speed limits to prevent imbalance and component fatigue.
- Electrical Safety: Connect the ball mill to a properly grounded 220V-50Hz outlet and avoid using with damaged power cords.
- Jar and Ball Compatibility: Use only compatible grinding jars (50-1500 ml) and appropriate milling balls to avoid mechanical overload or contamination.
- Operating Time Limits: Program total running time between 1 and 9999 minutes and forward-reverse alternating time between 1 and 999 minutes to prevent motor overheating.
- Speed Control: Do not exceed the maximum revolution speed of 560 rpm to avoid excessive centrifugal forces that may damage the jars or drive mechanism.
- Overload Protection: The integrated overload protection will halt operation if current exceeds safe thresholds; reset only after identifying and correcting the cause.
Loading and milling requires balancing jars, setting parameters, and monitoring noise and vibration. Proper shutdown includes gradual speed reduction and safe jar removal after cooldown.
Required Equipment: Grinding jars (50-1500 ml) with lids, Milling balls (appropriate size and material), Safety goggles and ear protection, Torque wrench for jar lid tightening
- Inspect jars and mill
Inspect all grinding jars for cracks and ensure the mill's chamber is clean and free of debris. - Load jars with material and balls
Load the material and milling balls into the jars leaving about one-third empty space, then seal lids tightly with a torque wrench. - Balance jars on planetary disk
Place loaded jars symmetrically on the planetary disk to ensure dynamic balance and tighten clamping mechanisms. - Set operating parameters on controller
Set desired total running time, forward-reverse alternating interval, and revolution speed using the variable frequency drive panel. - Start milling and monitor operation
Press start and monitor noise and vibration levels; stop immediately if unusual sounds or excessive vibration occur. - Reduce speed before stopping
Reduce the revolution speed gradually before stopping to allow jars to decelerate safely. - Remove jars after full stop
Wait until the mill has completely stopped and jars have cooled, then unclamp and remove jars carefully.
What is the trade-off between using the standard 1500ml grinding jars and the optional vacuum grinding jars on the SXQM-6 dual planetary ball mill?
The SXQM-6 is supplied with four 1500ml grinding jars for a total 6L capacity, but optional vacuum grinding jars are only available in 50–1000ml sizes. Therefore, choosing vacuum-compatible jars reduces maximum batch volume to 4L, trading processing throughput for the ability to mill under inert atmosphere or reduce oxidation.
Which grinding jar materials are recommended for milling hard ceramic or cemented carbide samples in the SXQM-6?
For abrasive materials such as ceramics or cemented carbides, use grinding jars made of silicon nitride ceramic, silicon carbide ceramic, or cemented carbide itself. The SXQM-6 is compatible with over 15 jar materials including zirconia, alumina, agate, and wear-resistant steel, allowing matching hardness to sample to minimize contamination.
What infrastructure is required to safely operate the SXQM-6 6L dual planetary ball mill in a laboratory setting?
The SXQM-6 requires a single-phase 220V-50Hz power supply (0.75 kW motor) and a stable, level surface capable of supporting its 250 kg net weight. Its compact footprint of 1150×800×760 mm fits standard lab benches, and maximum noise of 65 dB ensures no special acoustic treatment is needed.
The Atomfair SXQM-6 dual planetary ball mill combines a 6L working capacity with variable frequency speed control and precision gearing, delivering high-energy milling capable of nanometer-scale grinding for R&D and small-batch production of advanced materials.
Positive
- Double planetary high-energy milling: The dual planetary design increases revolution radius and speed, multiplying centrifugal force for enhanced collision, shearing, and friction, enabling grinding to nanometer scale.
- Robust construction for stable operation: Thickened steel plate shell and precision gear transmission ensure high strength, impact resistance, and low-noise high-speed operation.
Trade-offs
- 220V-50Hz power supply requirement: The mill operates on a 220V-50Hz single-phase supply, necessitating voltage/frequency conversion or compatible infrastructure in regions with different electrical standards.
- Substantial 250 kg net weight: The 250 kg unit weight requires a dedicated, reinforced work surface or floor mounting to ensure operational stability and safety during high-energy milling.
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).
