Kashiyama NeoDry-15G Oil-Free Diaphragm Vacuum Pump

Overview

The Kashiyama NeoDry-15G is an oil-free diaphragm vacuum pump engineered for precision laboratory environments where contamination-free operation, low noise, and long-term reliability are critical. Based on positive displacement via elastomeric diaphragm oscillation, the NeoDry-15G achieves ultimate vacuum levels down to 1.0 Pa (gas ballast valve closed) with a maximum volumetric pumping speed of 250 L/min at atmospheric inlet pressure. Its completely dry, hydrocarbon-free compression mechanism eliminates oil backstreaming, making it suitable for applications requiring ultra-clean vacuum conditions—including mass spectrometry sample preparation, solvent evaporation, vacuum filtration, freeze drying pre-evacuation, and analytical instrument backing. Designed and manufactured in Japan by Kashiyama Industries—a leader in high-reliability vacuum solutions—the NeoDry-15G integrates robust mechanical architecture with intelligent control capabilities, supporting both standalone operation and integration into automated lab workflows.

Key Features

• Oil-free diaphragm technology ensures zero hydrocarbon contamination and eliminates routine oil changes or disposal concerns.
• Ultra-low acoustic signature: ≤45 dB(A) under no-load conditions—optimized for shared laboratory spaces and noise-sensitive facilities.
• Integrated RS485 serial interface enables bidirectional communication for remote monitoring, speed regulation, and status feedback (e.g., temperature, motor current, fault codes) via Modbus RTU protocol.
• Variable-speed drive allows real-time adjustment of pumping rate to match process requirements—reducing energy consumption and minimizing thermal load during partial-load operation.
• Optional gas ballast valve improves water vapor handling capacity by up to 10%, extending pump life when processing humid or condensable vapors.
• IEC 60320 C14 power inlet supports universal AC input (100–240 V, 50/60 Hz), facilitating global deployment without voltage conversion hardware.
• Compact footprint (385 × 210 × 219 mm) and lightweight design (22 kg) enable flexible benchtop installation—even in space-constrained fume hoods or modular instrument racks.

Sample Compatibility & Compliance

The NeoDry-15G is compatible with non-corrosive, non-explosive gases and vapors typical of general laboratory processes. With a maximum allowable water vapor load of 275 g/h, it accommodates moderate humidity levels encountered during rotary evaporation or desiccator evacuation. While not rated for aggressive chemical vapors (e.g., halogenated solvents or strong acids), optional nitrogen purge configurations (N₂ model variant) enhance compatibility with mildly reactive atmospheres. The pump conforms to IEC 61000-6-3 (EMC emission limits) and IEC 61000-6-2 (immunity standards). Its construction meets RoHS Directive 2011/65/EU requirements. For regulated environments, the RS485 interface supports audit-trail-capable data logging when paired with compliant SCADA or LIMS systems—facilitating alignment with GLP and GMP documentation expectations.

Software & Data Management

The NeoDry-15G does not include proprietary software but provides raw serial data output via standard RS485 Modbus RTU registers. Integration with third-party platforms—including LabVIEW, Python-based control suites (e.g., PyModbus), and industrial PLCs—is straightforward using open protocol documentation provided by Kashiyama. Registered parameters include real-time rotational speed (% of max), motor current (A), internal temperature (°C), operational status (running/idle/fault), and cumulative runtime (hours). No embedded storage or local UI is present; all configuration and diagnostics occur externally, preserving system integrity and simplifying validation in regulated labs.

Applications

• Backing pumps for turbomolecular and diffusion vacuum systems in surface science and thin-film deposition setups.
• Vacuum concentration of biological samples prior to LC-MS analysis—where hydrocarbon residue must be avoided.
• Controlled dehydration in pharmaceutical stability chambers and lyophilizer primary drying stages.
• Evacuation of gloveboxes and inert-atmosphere reactors where oil mist contamination compromises material purity.
• High-throughput sample preparation workflows integrated with robotic liquid handlers and autosamplers.
• Environmental testing chambers requiring stable, low-noise vacuum maintenance over extended cycles.

FAQ

Is the NeoDry-15G suitable for continuous 24/7 operation?
Yes—its brushless DC motor, sealed-for-life bearings, and thermally optimized diaphragm assembly are rated for uninterrupted duty cycles under specified ambient conditions (≤35°C, ≤80% RH).
Can it handle solvent vapors from rotary evaporation?
It is approved for use with common polar solvents (e.g., water, methanol, ethanol, acetone) when operated with the gas ballast valve open and within the 275 g/h moisture tolerance limit. Chlorinated or fluorinated solvents require additional cold traps or alternative pump selection.
Does it comply with FDA 21 CFR Part 11 requirements?
The pump itself is not a Part 11–regulated device; however, its RS485 interface enables traceable electronic records when implemented within a validated system architecture that includes access controls, audit trails, and electronic signatures.
What maintenance is required?
Annual inspection of diaphragm integrity and valve seating is recommended. No lubrication, oil changes, or filter replacements are needed—only periodic cleaning of external vents and inlet filters if used in dusty environments.