KASHIYAMA NeoDry30E Air-Cooled Oil-Free Dry Vacuum Pump

Overview

The KASHIYAMA NeoDry30E is an air-cooled, oil-free dry rotary vane vacuum pump engineered for reliable, low-maintenance operation in analytical laboratories, semiconductor fabrication support environments, and R&D settings requiring clean, hydrocarbon-free vacuum generation. Unlike traditional oil-lubricated rotary vane pumps, the NeoDry30E employs a precision-machined, self-aligning vane system with non-contact rotation—vanes do not rub against each other or the stator wall during operation. This eliminates mechanical wear, minimizes particle generation, and ensures long-term dimensional stability of internal clearances. Its ultimate pressure of ≤1 Pa meets requirements for medium-vacuum applications such as vacuum drying, freeze-drying pre-evacuation, mass spectrometry sample introduction, and vacuum degassing of solvents or thin-film precursors. The absence of oil eliminates risk of backstreaming contamination—a critical requirement in UHV-adjacent workflows and GLP-compliant sample preparation.

Key Features

• Air-cooled thermal management: No external cooling water circuit required—reduces infrastructure dependency and simplifies installation in space-constrained lab benches or mobile analytical platforms.
• Gas ballast functionality (optional, N₂-compatible): Enables continuous removal of condensable vapors (e.g., water, low-boiling solvents) by introducing inert purge gas into the compression chamber prior to exhaust, preventing vapor condensation and subsequent oil degradation—particularly valuable in lyophilization support and solvent recovery systems.
• Extended service interval: Under typical air or nitrogen-only duty cycles, maintenance is recommended only every 36 months—significantly reducing total cost of ownership and downtime compared to conventional oil-sealed pumps.
• Low-noise operation (≤62 dB(A)): Achieved through balanced rotor dynamics, acoustic damping housing design, and optimized airflow pathways—suitable for shared laboratory environments where acoustic compliance is specified per ISO 7779 or local occupational health standards.
• Modular electrical configuration: Supports single-phase (100–115 V or 200–240 V) and three-phase (200–240 V) supplies at 50/60 Hz—facilitating global deployment without hardware modification.

Sample Compatibility & Compliance

The NeoDry30E is compatible with non-corrosive, non-explosive gases including ambient air, nitrogen, argon, and helium. It is not rated for halogenated, acidic, or solvent-saturated process streams without additional gas handling accessories (e.g., cold traps, scrubbers). While not classified as hermetically sealed, its construction conforms to IEC 61000-6-3 (EMC emission limits) and IEC 61000-6-2 (immunity). For regulated environments, the pump supports integration into 21 CFR Part 11–compliant workflows when paired with validated vacuum monitoring systems and electronic loggers that provide audit-trail-capable pressure and runtime data.

Software & Data Management

The NeoDry30E operates as a standalone analog device with no embedded digital controller or communication interface. However, it is fully compatible with third-party vacuum monitoring systems via analog 0–10 V or 4–20 mA pressure transducer inputs. When integrated into automated platforms (e.g., PLC-controlled freeze dryers or vacuum ovens), its stable pumping speed and predictable pressure ramp characteristics enable reproducible process parameter mapping. Users deploying it in GxP-regulated settings are advised to pair it with calibrated Pirani or capacitance manometers featuring electronic logging and timestamped export (CSV/Excel) for full traceability.

Applications

• Pre-evacuation and holding vacuum in laboratory freeze dryers (lyophilizers)
• Evacuation of glove boxes and desiccators operating down to 1 Pa
• Support vacuum for rotary evaporators handling low-volatility solvents
• Backing pumps for turbomolecular or diffusion pumps in analytical instrumentation
• Vacuum degassing of polymer resins, adhesives, and composite matrix precursors
• Routine vacuum filtration and solvent removal in QC/QA labs compliant with ASTM D2879 and ISO 2160

FAQ

Is the NeoDry30E suitable for continuous duty operation?
Yes—the pump is rated for continuous 24/7 operation under ambient temperatures up to 40 °C and relative humidity ≤80 % (non-condensing), provided adequate ventilation is maintained around the air-cooling fins.
Can it handle water vapor without gas ballast?
Limited capacity only; sustained water vapor loads without gas ballast will lead to internal condensation, reduced ultimate pressure, and accelerated vane wear. Gas ballast activation is strongly recommended for any application involving >5 % water vapor by volume.
What maintenance is required beyond the 36-month interval?
At 36 months, inspection includes vane wear assessment, bearing lubrication status (sealed-for-life bearings require no relubrication), and verification of gas ballast valve sealing integrity. No oil changes or filter replacements are necessary.
Does it meet ISO 8573-1 Class 0 for oil-free air?
While not certified to ISO 8573-1 (which applies to compressed air), the NeoDry30E delivers true oil-free vacuum—verified by residual oil vapor analysis per ISO 8573-2, with typical hydrocarbon content <0.001 mg/m³ at inlet.
Is the NW40 inlet compatible with standard ISO-KF vacuum fittings?
Yes—NW40 corresponds to ISO-KF 40 (DIN 28413), enabling direct connection to common laboratory vacuum tubing, valves, and chambers using standard clamps and centering rings.