Hanuo 2XZ-2 Rotary Vane Vacuum Pump

Overview

The Hanuo 2XZ-2 Rotary Vane Vacuum Pump is a compact, oil-lubricated positive displacement pump engineered for reliable rough vacuum generation in general laboratory and light industrial environments. Based on the classic rotary vane principle—where eccentrically mounted vanes rotate within a cylindrical stator chamber to trap and compress gas volumes—the 2XZ-2 delivers stable suction performance across variable inlet pressures. It operates effectively in the rough vacuum range (10⁵ to 10⁻² Pa), making it suitable as a primary vacuum source for sealed chambers or as a forepump for high-vacuum systems including diffusion pumps, turbomolecular pumps, and titanium sublimation pumps. Its design adheres to fundamental vacuum engineering principles defined in ISO 21809-2 (vacuum equipment — terminology and definitions) and aligns with national standard GB/T 15904–2021 (technical requirements for rotary vane vacuum pumps), ensuring mechanical integrity and functional interoperability in multi-stage vacuum architectures.

Key Features

• Compact footprint and lightweight construction (20 kg net weight) facilitate benchtop integration and mobility within constrained lab spaces.
• Incorporates a gas ballast valve enabling controlled admission of atmospheric air during compression, permitting continuous removal of small quantities of condensable vapors—including water vapor—without oil degradation.
• Integrated anti-backstreaming check valve prevents oil backflow into the vacuum chamber upon shutdown, eliminating post-cycle contamination and simplifying system startup procedures.
• Oil-sealed operation ensures consistent sealing performance and low ultimate pressure attainment (6 × 10⁻² Pa) under clean, dry conditions.
• Brushless induction motor rated at 0.37 kW and 1400 rpm provides stable torque delivery with low acoustic emission (<58 dB(A) at 1 m), supporting quiet operation in shared laboratory environments.
• Standard 220 V AC / 50 Hz input enables plug-and-play deployment in most Chinese and international 220–240 V single-phase electrical infrastructures.

Sample Compatibility & Compliance

The 2XZ-2 is not designed for direct sample interaction; rather, it serves as an enabling subsystem for vacuum-dependent instrumentation and processes. It is compatible with glassware, stainless-steel vacuum chambers, desiccators, freeze dryers, and thin-film deposition setups where hydrocarbon-compatible rough vacuum (≤10⁻² Pa) is required. While not certified for hazardous area use (e.g., ATEX or IECEx), its construction meets general-purpose safety requirements outlined in GB 5226.1–2019 (electrical equipment of machines). For regulated environments—such as pharmaceutical R&D labs operating under GLP or GMP frameworks—the pump may be deployed in non-critical vacuum support roles, provided oil change intervals, leak integrity checks, and maintenance logs are documented per internal SOPs. It does not comply with FDA 21 CFR Part 11 for electronic recordkeeping, as it lacks embedded digital control or audit-trail functionality.

Software & Data Management

The Hanuo 2XZ-2 is a manually operated, analog vacuum pump with no onboard microcontroller, digital interface, or firmware. It features no USB, RS-232, or Ethernet connectivity, and therefore does not support remote monitoring, data logging, or software-based parameter adjustment. System status (e.g., operational readiness, oil level) must be verified visually and mechanically. Integration with external vacuum measurement systems (e.g., Pirani or capacitance manometers) requires discrete analog signal conditioning and third-party DAQ hardware. Users intending to incorporate this pump into automated workflows should plan for external relay control, pressure interlocks, and manual calibration traceability—not software-driven automation.

Applications

• Evacuation of vacuum ovens and desiccators in material drying, moisture analysis, and polymer curing protocols.
• Forepumping for high-vacuum systems in surface science laboratories, electron microscopy sample preparation, and thin-film sputtering setups.
• Vacuum-assisted filtration and solvent recovery in chemical synthesis and pharmaceutical process development.
• Gas evacuation prior to inert-atmosphere glovebox purging or vacuum impregnation of porous materials.
• Supporting vacuum packaging validation studies in food science and biopreservation research.
• Undergraduate and graduate teaching labs requiring robust, entry-level vacuum infrastructure for physics, chemistry, and engineering curricula.

FAQ

What is the recommended oil type and change interval?
Use only ISO VG 100 or equivalent mineral-based rotary vane pump oil. Under continuous operation, oil should be replaced every 500 hours or quarterly—whichever occurs first—to maintain ultimate pressure stability and prevent sludge formation.
Can the 2XZ-2 handle corrosive gases?
No. This pump is not chemically resistant. Exposure to halogenated solvents, strong acids, or oxidizing gases will degrade the oil and damage internal components. Use only with dry, non-reactive gases or install appropriate scrubbers and cold traps upstream.
Is the pump suitable for cleanroom use?
It may be used adjacent to cleanrooms if equipped with an exhaust line vented outdoors or through an activated carbon filter; however, oil mist emission precludes direct placement inside ISO Class 5 or stricter environments without additional containment.
Does it include thermal overload protection?
Yes. The integrated motor includes bimetallic thermal cutout that interrupts power at ≥130 °C winding temperature, automatically resetting upon cooldown.
How is vacuum level monitored when using this pump?
A separate vacuum gauge—such as a Pirani gauge for 10⁵–10⁻¹ Pa range or a capacitance manometer for higher accuracy—is required. The pump itself provides no pressure feedback or readout capability.