Description
ATOMFAIR LNPM-2C LIQUID NITROGEN PLANETARY BALL MILL -40°C 4-STATIONRESEARCH GRADE EQUIPMENT
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TAILORED SOLUTIONS FOR RESEARCH
Contact our engineering team for technical support or official quotations.
EMAIL: inquiry@atomfair.com
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
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This cryogenic grinding system requires continuous liquid nitrogen supply to maintain the grinding chamber between -40°C and 20°C. The enclosed chamber must be operated in a well-ventilated area to prevent nitrogen gas displacement and asphyxiation hazards.
- Liquid Nitrogen Consumption Rate: Under 0–10°C operating conditions, liquid nitrogen consumption is approximately 4–5 L/h, requiring a sufficient LN2 supply for sustained operation.
- Ventilation Requirement: Adequate ventilation is required in the operating area due to nitrogen gas displacement to prevent oxygen depletion.
- Temperature Control Range: The grinding chamber temperature must be maintained between -40°C and 20°C to ensure proper cryogenic processing.
- Electrical Safety: The unit operates at 220V/110V and 0.75 kW, requiring proper electrical grounding and circuit protection.
- Cryogenic Safety Protocol: Always follow cryogenic safety protocols when handling liquid nitrogen to prevent frostbite and asphyxiation.
This procedure covers the safe startup and operation of the liquid nitrogen planetary ball mill for cryogenic grinding. Proper sequence ensures temperature control and user safety during material processing.
Required Equipment: Liquid Nitrogen Supply Tank (included 30 L empty LN2 tank), Grinding Jar Set (ordered separately, e.g., Al₂O₃, YSZ, Agate), Grinding Balls (ordered separately, e.g., WC-Co, Al₂O₃, Agate)
- Inspect and Prepare Liquid Nitrogen Supply
Inspect the liquid nitrogen supply tank for integrity and fill it with LN2, then connect it to the mill inlet. - Install Grinding Jars and Balls
Load the appropriate grinding jars and balls into the four stations, ensuring they are securely fastened. - Verify Ventilation and Electrical Connections
Confirm adequate ventilation in the operating area and verify that the unit is properly grounded and connected to the correct voltage supply. - Set Rotation Speed and Temperature Parameters
Set the rotation speed between 70–810 rpm according to sample requirements and initiate liquid nitrogen flow to reach the desired cryogenic temperature. - Load Samples and Start Grinding Cycle
Load samples into the grinding jars, seal them under inert atmosphere if required, and start the grinding cycle while monitoring temperature and LN2 consumption.
At the maximum rotation speed of 810 rpm, does the LNPM-2C maintain the -40°C cryogenic setpoint, or is there a speed limit for effective cryogenic grinding?
The source does not specify a maximum speed for maintaining -40°C; it states that continuous LN₂ injection rapidly absorbs heat from high-speed ball motion. The -40°C to 20°C temperature range is achievable, but the actual temperature stability at 810 rpm depends on factors such as jar material, sample volume, and ball-to-powder ratio. Users should verify performance with their specific materials.
Which jar materials are compatible with the LNPM-2C for vacuum or inert atmosphere cryogenic grinding?
The LNPM-2C supports vacuum grinding jars, enabling inert or vacuum atmosphere cryogenic grinding. Compatible jar materials listed include WC-Co, Al₂O₃, Agate, YSZ, SS, PU, Ceramic, and Nylon. However, the source does not explicitly state vacuum compatibility for each material; jars must be specifically designed for vacuum sealing to maintain an inert or vacuum atmosphere during cryogenic operation.
What are the infrastructure requirements for liquid nitrogen supply and ventilation when operating the LNPM-2C?
The unit includes a 30 L empty LN₂ tank and consumes approximately 4–5 L/h under 0–10°C operating conditions. Adequate ventilation is required in the operating area due to nitrogen gas displacement. Users must follow cryogenic safety protocols. The LN₂ tank is included, but users must arrange for liquid nitrogen supply and ensure a well-ventilated workspace.
The LNPM-2C is a 4-station cryogenic planetary ball mill with 2 L total volume, 0.75 kW motor, 70–810 rpm rotation, and -40°C to 20°C temperature control via continuous liquid nitrogen injection, enabling simultaneous grinding of up to four samples under inert or vacuum atmospheres for temperature-sensitive materials.
Positive
- Cryogenic grinding with -40°C capability: Continuous liquid nitrogen injection into the insulated chamber rapidly absorbs grinding heat, maintaining temperatures as low as -40°C for true cryogenic processing of temperature-sensitive materials such as electronic ceramics, lithium cobalt oxide, and phosphors.
- Four-station simultaneous sample processing: The standard four-position grinding configuration enables simultaneous preparation of four different samples in a single run, improving experimental throughput for comparative material studies without cross-contamination.
Trade-offs
- Continuous liquid nitrogen supply required: Under 0–10°C operating conditions, liquid nitrogen consumption is approximately 4–5 L/h, requiring a dedicated LN2 supply and regular refilling of the included 30 L tank for sustained operation.
- Grinding jars and balls ordered separately: The main unit includes the grinding host and 30 L LN2 tank, but grinding jars and balls must be purchased separately, adding upfront cost and lead time before the system can be operational.
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).
