Haolong HLA-5LP Oil-Free Air Generator

Overview

The Haolong HLA-5LP Oil-Free Air Generator is an engineered solution for laboratories requiring continuous, high-purity compressed air without reliance on external cylinder supplies or oil-lubricated compressors. It employs a maintenance-free, oil-free scroll-type compressor coupled with a proprietary HL-A hydrocarbon adsorption system—designed to remove trace hydrocarbons, esters, and volatile organic contaminants from ambient intake air. The unit operates on the principle of physical adsorption using high-efficiency activated carbon and molecular sieve media, followed by precision pressure regulation and dual-stage filtration. Its output meets stringent purity requirements for gas chromatography (GC), FTIR spectroscopy, particle counters, and other analytical instrumentation where hydrocarbon contamination compromises baseline stability or detector sensitivity. Unlike conventional oil-lubricated systems, the HLA-5LP eliminates risks of oil carryover, particulate shedding, or lubricant degradation—ensuring long-term reliability and compliance with ISO 8573-1:2010 Class 1.4.1 (solid particles, water, and oil content).

Key Features

• Oil-free scroll compressor with low-voltage soft-start circuitry—reducing mechanical stress and extending service life beyond 15,000 operating hours.
• HL-A multi-stage purification module: integrates activated carbon + zeolite-based adsorbents to reduce total hydrocarbons to <0.1 ppm (v/v), validated per ASTM D6216 method for trace hydrocarbon analysis.
• Electropolished stainless-steel gas path, ultrasonically cleaned prior to assembly—minimizing surface outgassing and metal ion leaching; compatible with ultra-high-purity (UHP) applications.
• Dual stainless-steel storage tanks (one primary, one buffer), each equipped with both automatic condensate drainage (timed solenoid valve) and manual purge ports—preventing rust formation and eliminating yellowish iron oxide residue common in carbon-steel vessels.
• Two-stage pressure regulation with stainless-steel diaphragm regulators and redundant overpressure protection (mechanical relief valve + electronic cut-off at 0.6 MPa).
• Real-time digital flow display (0–5000 mL/min, ±2% FS accuracy) and pressure monitoring; front-panel LED indicators for filter saturation, drain status, and system fault.
• Aero-acoustic noise suppression: includes aviation-grade vibration isolators and the proprietary HL-6 acoustic enclosure—achieving <40 dB(A) at 1 m distance, suitable for open-plan labs and adjacent instrument rooms.

Sample Compatibility & Compliance

The HLA-5LP delivers air compliant with critical analytical standards including ISO 8573-1:2010 Class 1.4.1 (oil aerosol ≤ 0.01 mg/m³, total oil ≤ 0.003 mg/m³, particles ≤ 20 nm, dew point ≤ −40 °C), making it suitable for GC carrier gas support, FTIR purge lines, laser cavity purging, and cleanroom air supply. It satisfies prerequisite air quality specifications for ASTM E260, USP , and ICH Q2(R2) method validation protocols. All wetted materials—including tubing, valves, and filters—are certified non-leaching and compatible with ISO 10993-5 cytotoxicity testing. The unit supports GLP/GMP environments via optional audit-trail-enabled firmware (available upon request), aligning with FDA 21 CFR Part 11 data integrity expectations when integrated with compliant LIMS platforms.

Software & Data Management

While the HLA-5LP operates as a standalone benchtop device, its analog/digital I/O interface (0–10 V / 4–20 mA) enables integration into centralized facility monitoring systems (e.g., Siemens Desigo, Honeywell Experion). Optional RS-485 Modbus RTU communication allows remote parameter readout—including real-time flow, pressure, temperature, and filter life estimation—via SCADA or LabVantage. Internal event logging records operational cycles, drain actuations, and alarm triggers for preventive maintenance scheduling. No proprietary software installation is required; configuration is performed via intuitive front-panel navigation with password-protected service mode.

Applications

• Carrier and make-up gas supply for gas chromatographs (GC/FID, GC/TCD, GC/MS)
• Purge gas for Fourier-transform infrared (FTIR) spectrometers and cavity ring-down spectrometers (CRDS)
• Instrument air for pneumatic actuators, auto-samplers, and robotic liquid handlers
• Zero-air generation (when paired with optional catalytic oxidizer module)
• Environmental test chambers requiring hydrocarbon-free airflow
• Pharmaceutical QC labs adhering to USP environmental monitoring requirements

FAQ

Does the HLA-5LP require periodic replacement of the HL-A adsorption cartridge?
Yes—the HL-A module has a rated service life of 6,000 hours under typical lab conditions (25 °C, 50% RH, inlet hydrocarbon <50 ppm). Replacement is indicated by a front-panel warning LED and confirmed via optional hydrocarbon sensor verification.
Can the unit be mounted in a rack or under a bench?
It is designed for free-standing benchtop use only; side and rear ventilation clearances of ≥10 cm are mandatory to maintain thermal stability and acoustic performance.
Is the output air suitable for mass spectrometry applications?
The standard configuration meets GC-MS requirements for auxiliary air and collision gas; for high-resolution MS (e.g., Orbitrap, TOF), we recommend adding the optional catalytic post-purifier (HL-CAT-1) to achieve sub-ppb hydrocarbon levels.
What safety certifications does the HLA-5LP hold?
It complies with IEC 61000-6-3 (EMC emission), IEC 61000-6-2 (immunity), and UL/CSA 61010-1 for laboratory electrical equipment; CE marking is applied per EU Directive 2014/30/EU and 2014/35/EU.
How is moisture controlled in the output stream?
Integrated refrigerated drying (−15 °C dew point) and coalescing filtration ensure residual water content remains below 10 ppm_v; optional desiccant dryer modules (HL-DRY-2) extend dew point to −40 °C for cryogenic applications.