Kashiyama NeoDry-30G Oil-Free Diaphragm Vacuum Pump
| Brand | Kashiyama |
|---|---|
| Origin | Japan |
| Pump Type | Dry Diaphragm Vacuum Pump |
| Model | NeoDry-30G |
| Maximum Pumping Speed | 500 L/min |
| Ultimate Pressure (Gas Ballast Closed) | 1.0 Pa |
| Motor Power | 0.34 kW |
| Noise Level | ≤45 dB(A) |
| Vibration | ≤8 µm p-p |
| Inlet Port | NW40 |
| Dimensions (W×D×H) | 410×210×219 mm |
| Weight | 24 kg |
| Max Allowable Water Vapor Load | 275 g/h |
| Power Supply | Single-phase AC 100–240 V, 50/60 Hz |
| Communication Interface | RS485 |
| Gas Ballast Option | Available (N₂-compatible version also offered) |
| Compliance | IEC 61000-6-3 (EMC), IEC 61000-6-2 (Immunity), RoHS-compliant |
Overview
The Kashiyama NeoDry-30G is a high-performance, oil-free diaphragm vacuum pump engineered for precision laboratory and analytical applications requiring clean, hydrocarbon-free vacuum generation. Operating on positive displacement principle via elastomeric diaphragms and check-valve arrays, the NeoDry-30G delivers stable, pulse-dampened suction without lubricating oils—eliminating risk of sample contamination, backstreaming, or maintenance downtime associated with oil-sealed systems. Its ultimate pressure of 1.0 Pa (gas ballast closed) and maximum pumping speed of 500 L/min make it suitable for primary vacuum duties in mass spectrometry sample introduction, vacuum ovens, freeze dryers, degassing of solvents, and low-pressure reaction setups. Designed and manufactured in Japan under Kashiyama’s stringent quality control protocols, the NeoDry-30G integrates robust mechanical architecture with intelligent operability—including variable-speed motor control and digital communication capability—ensuring compatibility with automated lab environments governed by GLP, GMP, or ISO/IEC 17025 frameworks.
Key Features
- Oil-free operation ensures zero hydrocarbon contamination—critical for trace analysis, semiconductor R&D, and pharmaceutical process validation.
- Ultra-low noise emission (≤45 dB[A] at 1 m) enables seamless integration into quiet laboratory spaces, including open-plan research labs and QC suites adjacent to analytical instrumentation.
- Integrated RS485 interface supports Modbus RTU protocol for remote monitoring, real-time pressure feedback, and synchronized speed modulation via SCADA or LIMS platforms.
- Optional gas ballast valve enhances water vapor tolerance by up to 10%, extending service intervals when handling humid or solvent-laden gases; N₂-purged variant available for inert atmosphere applications.
- IEC-standard power input (AC 100–240 V, 50/60 Hz) provides global electrical compatibility without external transformers or voltage converters.
- Compact footprint (410 × 210 × 219 mm) and lightweight design (24 kg) facilitate benchtop deployment, mobile cart mounting, or integration into OEM vacuum manifolds.
Sample Compatibility & Compliance
The NeoDry-30G is compatible with non-corrosive, non-condensable, and mildly condensable vapors—including water, ethanol, acetone, and common organic solvents—within its specified vapor load limit of 275 g/h. It is not intended for use with aggressive chemicals (e.g., halogenated solvents, strong acids, or oxidizers) without prior consultation with Kashiyama technical support. The pump meets electromagnetic compatibility requirements per IEC 61000-6-3 and immunity standards per IEC 61000-6-2. All materials in wetted path comply with RoHS Directive 2011/65/EU. While not certified to UL or CSA standards, its construction aligns with general safety expectations for Class I, Division 2 laboratory equipment under NFPA 70 (NEC) and IEC 61010-1:2010 for electrical safety in measurement and control equipment.
Software & Data Management
The NeoDry-30G does not include proprietary software but exposes full operational telemetry—including rotational speed, motor current, internal temperature, and status flags—via standardized RS485/Modbus RTU registers. Integration with third-party data acquisition systems (e.g., LabVIEW, MATLAB, or Python-based PyModbus libraries) enables time-stamped logging, alarm triggering on overpressure or thermal deviation, and audit-trail generation compliant with FDA 21 CFR Part 11 when deployed within validated electronic record workflows. Firmware updates are performed offline using Kashiyama’s authorized configuration utility, ensuring traceability and integrity of device configuration history.
Applications
- Vacuum manifold supply for multiple parallel GC or HPLC degassers
- Primary vacuum source for rotary evaporators operating below 10 Pa
- Backing pump for turbomolecular or diffusion pumps in surface science chambers
- Continuous evacuation of glove boxes during solvent transfer or inert gas purging
- Process vacuum control in small-scale lyophilization cycles under GLP-regulated development
- Environmental chamber evacuation for accelerated aging studies per ASTM D3574 or ISO 188
FAQ
Is the NeoDry-30G suitable for continuous 24/7 operation?
Yes—the pump is rated for continuous duty under ambient temperatures ≤35°C and relative humidity ≤80% non-condensing, provided adequate ventilation and periodic inspection of diaphragm integrity per Kashiyama’s Maintenance Schedule No. ND-30G-MS-2023.
Can it handle acidic vapors such as HCl or HF?
No—corrosive or highly reactive gases require specialized chemically resistant pumps (e.g., PTFE-lined scroll or fluoropolymer diaphragm variants); consult Kashiyama Application Engineering before exposure.
What is the expected service life of the diaphragm assembly?
Under typical laboratory usage (8 h/day, moderate vapor load), the standard EPDM diaphragm set achieves ≥12,000 hours MTBF; extended-life FKM options are available upon request.
Does the RS485 interface support Ethernet bridging?
Not natively—but industrial RS485-to-Ethernet gateways (e.g., Moxa EDS-G205A) enable TCP/IP mapping of Modbus registers for networked lab infrastructure integration.
Is calibration required prior to first use?
No factory calibration is needed; however, users should verify ultimate pressure performance using a traceable capacitance manometer (e.g., MKS Baratron 627B) as part of initial qualification per ISO/IEC 17025 Section 6.4.

