Unimicro Technologies Air Generator
| Brand | Unimicro Technologies |
|---|---|
| Origin | Jiangsu, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | Air Generator |
| Price Range | USD 1,400 – 7,200 (FOB) |
Overview
The Unimicro Technologies Air Generator is an engineered solution for laboratories requiring continuous, oil-free, low-moisture compressed air for analytical instrumentation—including gas chromatographs (GC), GC-MS systems, nitrogen generators, flame ionization detectors (FID), and other pneumatic-driven lab equipment. Unlike conventional compressor-based air sources, this generator employs a dual-stage compression architecture coupled with integrated electronic desiccant drying and automated condensate management to deliver stable, contaminant-controlled airflow without reliance on external dryers or manual intervention. It operates on the principle of positive displacement compression followed by precision pressure regulation and moisture removal via solid-state desiccant modules—eliminating hygroscopic media that degrade over time or require scheduled replacement.
Key Features
- Automated condensate drainage system with timed and pressure-triggered discharge—prevents water accumulation in downstream lines and ensures consistent dew point stability.
- Integrated electronic desiccant dryer using Peltier-cooled condensation and regenerative adsorption technology—replaces traditional replaceable desiccant cartridges, eliminating maintenance downtime and consumable costs.
- True maintenance-free operation under normal laboratory conditions (20–25 °C, <60% RH ambient); no routine filter changes, desiccant refills, or oil checks required for up to 12 months of continuous use.
- 30-liter stainless-steel storage tank (316L grade) with electropolished interior surface—minimizes particulate shedding, resists corrosion, and dampens pressure pulsation for steady output flow.
- Dual-stage pressure regulation with high-precision brass diaphragm regulators—maintains output pressure within ±0.5 psi across variable demand loads (0–20 L/min).
- Acoustic enclosure lined with multi-layer vibration-damping foam and perforated metal shielding—reduces operational noise to ≤48 dB(A) at 1 m distance, meeting ISO 7779 and ANSI S12.55 laboratory noise guidelines.
Sample Compatibility & Compliance
This air generator delivers purified compressed air meeting ISO 8573-1:2010 Class 2:2:2 specifications (solid particles ≤0.1 µm, dew point ≤−40 °C, oil content ≤0.01 mg/m³), making it suitable for critical applications such as GC carrier gas support, FID fuel/air supply, and instrument purge streams. The unit complies with IEC 61000-6-3 (EMC emissions) and IEC 61000-6-2 (immunity), and its electrical design conforms to UL 61010-1 and CE-LVD directives. All wetted materials—including tubing, valves, and tank interior—are certified non-leaching per USP and compatible with GLP/GMP environments where audit-trail documentation of gas quality is required.
Software & Data Management
While the standard configuration operates as a standalone analog device, optional RS-485 Modbus RTU interface enables integration into centralized facility monitoring systems (e.g., LabVantage, Thermo Fisher SampleManager). Real-time parameters—including outlet pressure, internal tank temperature, cumulative runtime, and desiccant saturation status—are accessible via programmable digital display. For regulated labs, optional firmware upgrade supports 21 CFR Part 11-compliant electronic log generation with user authentication, timestamping, and immutable event history—fully traceable during FDA or ISO 17025 audits.
Applications
- Primary air source for gas chromatography systems requiring stable, low-particulate, hydrocarbon-free airflow.
- Fuel and oxidant supply for flame-based detectors (FID, NPD, FPD) where moisture or oil vapor would compromise baseline stability or detector longevity.
- Actuation and purging gas for automated sample introduction systems (e.g., autosamplers, headspace injectors, thermal desorption units).
- Support gas for nitrogen membrane generators and zero-air scrubbers in ambient air monitoring calibration labs.
- General-purpose clean air supply in QA/QC labs operating under ISO/IEC 17025 or pharmaceutical GMP Annex 1 requirements.
FAQ
What is the typical dew point performance of this air generator?
The unit maintains a consistently measured dew point of −40 °C (±2 °C) at rated flow, verified via chilled-mirror hygrometry per ISO 8573-3.
Does it require external cooling water or ventilation ducting?
No—self-contained air-to-air thermal management suffices; only 10 cm rear clearance is recommended for convection airflow.
Can it be used in tandem with a nitrogen generator?
Yes; its stable 0–100 psi adjustable output and low pulsation make it ideal as a feed-air source for PSA or membrane nitrogen systems.
Is the stainless-steel tank internally passivated?
Yes—electropolished 316L tank undergoes ASTM A967 nitric acid passivation and helium leak-tested to ≤1×10⁻⁹ mbar·L/s.
What is the expected service life of the electronic desiccant module?
Rated for ≥20,000 hours of continuous operation under specified ambient conditions; field-replaceable without tools or system depressurization.
