ATARICO ATLN120-A Compact Nitrogen Liquefier with Integrated PSA Nitrogen Generator

Overview

The ATARICO ATLN120-A is an integrated, bench-to-floor-scale nitrogen supply system engineered for laboratories requiring on-demand liquid nitrogen (LN₂) without reliance on bulk deliveries or cryogenic dewars. Unlike conventional nitrogen generators that produce only gaseous N₂, the ATLN120-A combines a high-efficiency pressure swing adsorption (PSA) nitrogen generator with a self-contained mixed-refrigerant Joule–Thomson liquefaction module. This dual-stage architecture enables continuous conversion of compressed air into ≥99% pure nitrogen gas, followed by deep cooling to –180°C and phase transition into liquid nitrogen at a rated output of 120 liters per day. The system operates autonomously under ambient conditions (5–30°C), delivering LN₂ directly into a standard 7-bar-rated dewar. Its design addresses critical operational constraints in biopharma R&D, vaccine cold-chain validation, cryopreservation of primary cells and tissue samples, and low-temperature materials testing—where temporal consistency, purity integrity, and supply continuity are non-negotiable.

Key Features

• Integrated PSA + JT liquefaction architecture eliminates dependency on external nitrogen sources or third-party liquid nitrogen logistics.
• Air-cooled mixed-refrigerant Joule–Thomson cycle ensures stable liquefaction performance without water chiller infrastructure or external coolant loops.
• Modular mechanical layout with industrial-grade commercial compressors and brazed-plate heat exchangers—designed for field serviceability and long-term reliability (MTBF > 15,000 hours).
• Compact footprint (1400 × 1000 × 2000 mm) and wheeled base enable repositioning within ISO Class 7/8 cleanrooms or controlled lab environments without structural modification.
• Local HMI panel provides real-time monitoring of inlet air pressure, PSA bed status, refrigerant loop temperature gradients, dewar fill level estimation, and system fault codes.
• Compliance-ready mechanical design supports integration into GMP-aligned workflows; all wetted surfaces are electropolished stainless steel (SS316L), with traceable material certifications available upon request.

Sample Compatibility & Compliance

The ATLN120-A produces nitrogen meeting ISO 8573-1:2010 Class 2:2:2 for particulate, water, and oil content—validated at point-of-use via integrated coalescing filters and carbon polishing beds. The resulting liquid nitrogen exhibits ≤ –65°C dew point at 7 bar, ensuring compatibility with cryogenic storage systems requiring strict moisture control (e.g., vapor-phase LN₂ freezers, automated cell banking platforms). While not certified to FDA 21 CFR Part 11 out-of-the-box, the system’s deterministic operational logic, non-volatile event logging, and absence of user-modifiable firmware align with ALCOA+ data integrity principles. It is routinely deployed in GLP-regulated preclinical labs and QC release testing suites where audit trails for LN₂ sourcing must be demonstrable and reproducible.

Software & Data Management

The ATLN120-A utilizes a dedicated embedded controller with a 7-inch resistive touchscreen HMI. No external PC or network connectivity is required. All operational parameters—including runtime hours, cumulative LN₂ output, compressor cycle count, and alarm history—are stored locally in non-volatile memory with timestamping (RTC-backed). Export functionality is not provided; however, maintenance logs and fault records can be retrieved via USB port using vendor-supplied diagnostic utility (Windows-compatible). For regulated environments, users may implement periodic manual log transcription into validated electronic lab notebooks (ELN) or LIMS as part of their SOP-defined instrument qualification process.

Applications

• Cryopreservation of sensitive biologicals: primary hepatocytes, dendritic cells, CAR-T intermediates, and ovarian tissue—where batch-to-batch LN₂ quality directly impacts post-thaw viability.
• Vaccine formulation development: supporting ultra-low-temperature stability studies (–80°C to –196°C) under ICH Q5C guidelines.
• Materials science: controlled thermal cycling of superconductors, polymers, and battery electrode composites requiring precise cryogenic ramp rates.
• Mass spectrometry support: provision of high-purity LN₂ for cryo-cooling of detectors and ion optics in HRAM-MS platforms.
• On-site backup for central LN₂ plants: mitigating single-point failure risk during facility maintenance or supply chain disruption.

FAQ

Does the ATLN120-A require external cooling water or glycol circulation?

No. It is fully air-cooled and designed for operation in standard laboratory HVAC environments (5–30°C ambient, ≤60% RH).
Can the system be validated for GMP manufacturing use?

Yes—though it lacks built-in 21 CFR Part 11 features, its mechanical determinism, SS316L fluid path, and documented IQ/OQ protocols (available from ATARICO) support qualification in non-sterile API or intermediate manufacturing settings.
What maintenance intervals are recommended?

PSA pre-filters: every 500 operating hours. Carbon polishing bed: annually or after 8,000 hours. Refrigerant charge verification: biennially by authorized technician.
Is remote monitoring or Ethernet connectivity supported?

Not natively. Optional RS-485 Modbus RTU interface is available for integration into building management systems (BMS) or SCADA networks, subject to custom configuration.
How does altitude affect performance?

Above 1,500 m elevation, air density reduction lowers PSA throughput and increases compressor work; derating of LN₂ output by ~0.8% per 100 m is observed above sea level—consult technical datasheet for site-specific correction factors.