Description
ATOMFAIR LNPM-12C LIQUID NITROGEN PLANETARY BALL MILL -40°C 4-STATIONRESEARCH & PRODUCTION GRADE EQUIPMENT
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TAILORED SOLUTIONS FOR RESEARCH & PRODUCTION
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 document specifies the critical safety and environmental constraints for operating the LNPM-12C cryogenic ball mill. Adherence to these constraints is mandatory to prevent equipment damage, personal injury, or material contamination.
- Cryogen Supply Requirement: The mill requires a continuous supply of liquid nitrogen from a compatible 30 L or 50 L storage tank, with consumption of approximately 4–5 L/h under typical 0–10°C operating conditions.
- Ventilation and Atmospheric Safety: Adequate ventilation is required in the operating area to prevent accumulation of nitrogen gas, which can displace oxygen and create an asphyxiation hazard.
- Grinding Media Compatibility: Only use grinding jars and balls that are rated for cryogenic temperatures and chemically compatible with the sample material; available jar materials include Al₂O₃, PU, PTFE, ceramic, stainless steel, and nylon.
- Temperature Control Limits: The grinding chamber temperature must be maintained within the range of -40°C to 20°C to ensure proper operation and avoid thermal stress on components.
- Personal Protective Equipment: Always follow cryogenic safety protocols, including the use of insulated gloves and eye protection, when handling liquid nitrogen or operating the mill.
This procedure guides the user through the safe setup and operation of the LNPM-12C for cryogenic grinding. Execute each step in sequence to achieve consistent grinding results while maintaining safety.
Required Equipment: Liquid nitrogen storage tank (30 L or 50 L), Grinding jars (ordered separately per material compatibility), Grinding balls (ordered separately per size and material), Personal protective equipment (cryogenic gloves, safety goggles)
- Connect Liquid Nitrogen Supply
Connect the liquid nitrogen supply line from the storage tank to the mill's injection inlet, ensuring all fittings are secure and leak-free. - Configure Temperature Setpoint
Set the temperature controller to the desired grinding temperature within the range of -40°C to 20°C, allowing the chamber to cool to the setpoint before proceeding. - Load Grinding Jars and Balls
Load each of the four grinding stations with the sample material and appropriate grinding balls, then seal the jars securely. - Secure Chamber and Start Cooling
Place the loaded jars into the grinding platform, close the chamber lid, and initiate the liquid nitrogen injection system to stabilize the temperature. - Start Grinding Rotation
Set the rotation speed using the control interface (70–580 rpm for this model) and start the milling program. - Monitor Operation
Continuously monitor the chamber temperature and liquid nitrogen consumption during grinding, adjusting the supply as necessary to maintain the setpoint.
What is the cooling capacity and temperature stability of the LNPM-12C at maximum rotational speed?
The LNPM-12C maintains a grinding chamber temperature from -40°C to 20°C via continuous liquid nitrogen injection. At the maximum rotation speed of 580 rpm, the 1.5 kW motor generates substantial heat, but the insulated chamber and LN2 flow keep the environment stable; under typical 0–10°C operating conditions, liquid nitrogen consumption is approximately 4–5 L/h. The system adjusts LN2 injection to hold the set point within that range, though higher speeds and lower set points increase consumption proportionally.
Can the LNPM-12C process oxygen-sensitive materials like lithium cobalt oxide under inert atmosphere?
Yes, the LNPM-12C supports vacuum and inert atmosphere grinding through compatibility with vacuum grinding jars. This enables cryogenic processing of air-sensitive materials, including lithium cobalt oxide, lithium manganese oxide, and other electronic ceramics explicitly listed in the application scope. The four-station configuration allows simultaneous grinding of up to four different samples under controlled atmosphere conditions.
What are the liquid nitrogen consumption and ventilation requirements for operating the LNPM-12C?
Under typical 0–10°C operating conditions, the LNPM-12C consumes approximately 4–5 L/h of liquid nitrogen. A compatible 30 L or 50 L liquid nitrogen storage tank is required and must be ordered separately. Adequate ventilation is mandatory in the operating area due to nitrogen gas displacement, and cryogenic safety protocols for handling liquid nitrogen must always be followed.
The ATOMFAIR LNPM-12C is a 4-station liquid nitrogen planetary ball mill with 12 L total volume, 1.5 kW motor, and -40°C to 20°C temperature control, enabling cryogenic grinding for temperature-sensitive materials. Its vacuum and inert atmosphere compatibility supports air-sensitive sample processing, but continuous liquid nitrogen supply at 4–5 L/h and mandatory ventilation and cryogenic safety protocols impose operational infrastructure demands.
Positive
- Cryogenic grinding down to -40°C: Continuous liquid nitrogen injection into the insulated chamber absorbs grinding heat, maintaining temperatures as low as -40°C for true cryogenic processing of temperature-sensitive materials.
- Four-station simultaneous processing: The four-position grinding configuration enables simultaneous preparation of four different samples in a single run, improving experimental throughput for comparative material studies.
Trade-offs
- Continuous liquid nitrogen supply required: Under 0–10°C operating conditions, liquid nitrogen consumption is approximately 4–5 L/h, necessitating a steady LN2 source and a 100 L storage tank (included) to sustain operation.
- Ventilation and cryogenic safety protocols: Adequate ventilation is required in the operating area due to nitrogen gas displacement, and all cryogenic safety protocols for handling liquid nitrogen must be strictly followed.
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).
