CPM-20 Cryogenic Planetary Ball Mill 20 L ATOMFAIR®

ATOMFAIR CPM-20 CRYOGENIC PLANETARY BALL MILL 5-15°C LOW-TEMP GRINDING

RESEARCH & PRODUCTION GRADE EQUIPMENT

Product Overview

ATOMFAIR CPM-20 Cryogenic Planetary Ball Mill – key parameters: 4 kW gear-drive motor, 0–430 r/min (1:1.5) jar rotation, 385 mm revolution diameter, 222 mm jar holder ID, total volume 20 L (4 jars × 5 L each), output down to 0.1 μm, integrated 3P air-cooled refrigeration unit maintains 5–15°C.
The CPM-20 combines a planetary ball mill with an air-cooled refrigeration unit based on compressor-type cooling principles. During high-speed grinding, most materials generate temperature rise through friction and exothermic reactions, which can alter physicochemical properties and compromise grinding results. This cryogenic planetary ball mill is specifically designed for low-temperature ultrafine grinding research and small-batch production where strict temperature control is critical. The air-cooled refrigeration gear drive system rapidly removes grinding-generated heat through cold air circulation, stably maintaining the grinding chamber temperature between 5–15°C depending on ambient temperature differential. The gear-driven transmission supports simultaneous operation of 4 grinding jars with 4 standard 5 L jars (total volume 20 L). This listing is priced for the CPM-20 main unit only—grinding jars and grinding balls are ordered separately. The CPM series spans from 0.2 L miniature models to 200 L production units with integrated cryogenic temperature control.

CPM Series Full Model Specifications

No.	Model	Type	Rotation (rpm)	Jar ID (mm)	Motor	Rev Dia (mm)	Dimensions (mm)	Weight (kg)	Air Cooler
1	CPM-0.2	Mini	0–1160	50	90 W	Φ111	420×260×310	25	2P
2	CPM-0.2S	Mini Glovebox	0–1160	50	90 W	Φ111	Host: 390×220×270 Control: 200×180×240	29	2P
3	CPM-0.4A	Semi-Circular	0–870	80	250 W	Φ140	530×300×360	34	2P
4	CPM-6	Standard	0–670	134	0.75 kW	Φ234	760×470×580	100	2P
5	CPM-4A	Semi-Circular	0–670	134	0.75 kW	Φ234	760×470×600	85	2P
6	CPM-(8-12)	Standard	0–580	162	1.5 kW	Φ275	900×600×640	168	3P
7	CPM-(8-12)A	Semi-Circular	0–580	162	1.5 kW	Φ275	880×560×642	150	3P
8	CPM-16A	Semi-Circular	0–510	182	3 kW	Φ320	950×600×710	205	3P
9	CPM-20	Standard	0–430 (1:1.5)	222	4 kW	Φ385	1200×790×930	392	3P
10	CPM-40	Standard	0–390	250	5.5 kW	Φ430	1400×880×1070	656	3P
11	CPM-60	Standard	0–260 (1:1.5)	275	7.5 kW	Φ490	1600×1070×1250	950	3P
12	CPM-100	Standard	0–240 (1:1.5)	326	11 kW	Φ578	1750×1140×1330	1300	5P
13	CPM-200	Standard	0–215	460	22 kW	Φ738	2670×1600×2804	2725	5P

Standard Configuration List

Item	Configuration Description
Main Grinding Unit (Included in Price)	1 pc
Grinding Jars (Order Separately)	4 pcs of 5 L grinding jars (Total Volume: 20 L) Available Materials: WC-Co · Al₂O₃ · Agate · YSZ · SS · PU · Ceramic · Nylon
Grinding Balls (Order Separately)	40% of the jar capacity Available Materials: WC-Co · Al₂O₃ · Agate · YSZ · SS · IC-PU
Cooling System (Included in Price)	Integrated 3P Air-Cooled Refrigeration Unit with Compressor-Based Cooling

Key Features & Advantages

Integrated Air-Cooled Refrigeration with 5–15°C Temperature Stability: The compressor-based cooling system rapidly removes frictional and exothermic reaction heat via cold air circulation, stably maintaining the grinding chamber within the 5–15°C range for temperature-sensitive materials processing.
Gear-Driven Transmission with Brand Inverter Stepless Speed Control: The gear drive system delivers robust torque transmission for heavy grinding loads, while the brand-name inverter enables precise stepless speed regulation across the full operational range for optimized grinding parameters.
Ultrafine Output Down to 0.1 μm with High Loading Capacity: The planetary motion achieves final particle sizes as fine as 0.1 μm depending on material and process parameters, with maximum loading of two-thirds jar volume for efficient batch processing.
Compact Production Capacity with 20 L Total Volume (4 × 5 L): The CPM-20 supports 4 standard 5 L grinding jars for a total volume of 20 L, offering an ideal balance between production throughput and laboratory-scale flexibility while maintaining consistent cryogenic temperature control across all jars.

APPLICATION SCOPE: Widely used in geology, mining, metallurgy, electronics, building materials, ceramics, chemical engineering, light industry, pharmaceuticals, and environmental protection for temperature-sensitive materials. Specifically suitable for electronic ceramics, structural ceramics, magnetic materials, lithium cobalt oxide, lithium manganese oxide, catalysts, phosphors, long-afterglow luminescent powders, rare-earth polishing powders, electronic glass powders, fuel cells, zinc oxide varistors, piezoelectric ceramics, nanomaterials, multilayer ceramic capacitors (MLCC), thermistors (PTC, NTC), dielectric ceramics, alumina ceramics, zirconia ceramics, zinc oxide powders, cobalt oxide powders, nickel-zinc ferrites, and manganese-zinc ferrites where low-temperature grinding is critical for preserving material properties.

PACKAGING: This listing is priced for the CPM-20 main unit only. The standard configuration includes 1 pc grinding host machine with integrated air-cooled refrigeration unit (3P compressor), brand-name inverter speed control, and gear drive transmission. Grinding jars: 4 pcs of 5 L (total volume 20 L) are ordered separately. Grinding balls are also ordered separately. The CPM series is available from 0.2 L miniature models through 200 L production units. Installation guidance and operational training support are provided upon request.

IMPORTANT NOTICE: The listed price is for the main unit; grinding jars and balls must be ordered separately. Select jar and ball materials compatible with your target material to avoid cross-contamination. The refrigeration unit requires adequate ventilation space around the equipment for optimal cooling performance. The temperature control range of 5–15°C is dependent on ambient temperature conditions—maintain a stable laboratory environment for consistent results. For detailed installation, operation, and maintenance instructions, consult the user manual prior to first use. If you have specific requirements for other CPM models or custom configurations, please contact us at inquiry@atomfair.com.

TAILORED SOLUTIONS FOR RESEARCH

Contact our engineering team for technical support or official quotations.

EMAIL: inquiry@atomfair.com

Manufacturer: Atomfair LLC

Brand: ATOMFair®

The CPM-20 cryogenic planetary ball mill requires adequate ventilation and stable ambient temperature for reliable 5–15°C operation. Material compatibility of grinding jars and media must be verified to prevent cross-contamination and equipment damage.

Ventilation: Provide adequate ventilation space around the equipment to maintain optimal cooling performance.
Ambient Temperature: Maintain a stable laboratory environment to ensure consistent 5–15°C grinding chamber temperature.
Material Compatibility: Select jar and ball materials that are chemically and physically compatible with the target material to avoid cross-contamination.
Electrical Safety: Connect the 4 kW motor to a properly grounded power supply with appropriate circuit protection and phase requirements.
Weight and Installation: Place the 392 kg unit on a reinforced floor or vibration-dampening base to ensure stability and safe operation.

HowTo

The CPM-20 requires proper ventilation, material selection, and ambient temperature control for safe and effective low-temperature grinding. Follow these steps to prepare and operate the mill.

Required Equipment: Cryogenic planetary ball mill (CPM-20 main unit), Grinding jars (4 × 5 L, ordered separately), Grinding balls (ordered separately, 40% jar volume)

Ensure adequate ventilation
Ensure adequate ventilation space around the equipment for optimal cooling performance.
Select compatible materials
Select grinding jar and ball materials compatible with your target material to avoid cross-contamination.
Stabilize ambient temperature
Verify that the ambient temperature is stable for consistent temperature control within the 5–15°C range.
Consult user manual
Consult the user manual for detailed installation, operation, and maintenance instructions prior to first use.

FAQ

What is the effective temperature control range of the CPM-20 cryogenic planetary ball mill and how does ambient temperature affect it?

The CPM-20 maintains the grinding chamber temperature between 5–15°C using an integrated 3P air-cooled refrigeration unit with compressor-based cooling. However, the source explicitly states that this range is dependent on ambient temperature conditions; a stable laboratory environment is required for consistent results. The system rapidly removes frictional and exothermic heat via cold air circulation.

Which grinding jar materials are compatible with the CPM-20 for contamination-sensitive applications?

The CPM-20 accepts 4 standard 5 L grinding jars (total volume 20 L) available in materials including WC-Co, Al₂O₃, Agate, YSZ, SS, PU, Ceramic, and Nylon. For zero-metal analysis, agate jars (natural SiO₂) are recommended. Jar and ball materials must be selected to avoid cross-contamination with the target material, as jars and balls are ordered separately.

What are the ventilation and space requirements for the integrated air-cooled refrigeration unit on the CPM-20?

The refrigeration unit requires adequate ventilation space around the equipment for optimal cooling performance. The CPM-20 main unit dimensions are 1200×790×930 mm and weighs 392 kg. The 3P air-cooled compressor needs proper airflow; a stable laboratory environment is recommended to maintain the 5–15°C temperature control range.

Assessment

The Atomfair CPM-20 Cryogenic Planetary Ball Mill integrates a 4 kW gear-drive transmission with an air-cooled refrigeration system for low-temperature ultrafine grinding down to 0.1 μm, processing up to 20 L total volume across four 5 L jars. Its 5–15°C temperature stability is critical for heat-sensitive materials, though cooling performance depends on ambient conditions and grinding jars must be purchased separately.

Positive

Integrated cryogenic temperature control (5–15°C): The compressor-based air-cooled refrigeration system maintains grinding chamber temperature between 5–15°C, enabling ultrafine grinding of temperature-sensitive materials such as lithium battery cathodes and pharmaceutical compounds without thermal degradation.
Gear-driven transmission with stepless speed control: The 4 kW gear-drive motor paired with a brand inverter provides precise speed regulation from 0–430 rpm, delivering robust torque for heavy grinding loads and optimized process parameters.

Trade-offs

Ambient temperature dependency for cooling performance: The refrigeration unit's 5–15°C temperature stability depends on ambient conditions; a stable laboratory environment with adequate ventilation is required for consistent results.
Separate procurement of grinding jars and media: Grinding jars (4×5 L) and balls must be ordered separately, requiring careful material selection to avoid cross-contamination and additional capital planning.

Quality Standards & Performance Verification

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.

Shipping & Returns

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).