KASHIYAMA Neodry7E Dry Running Roots Vacuum Pump

Overview

The KASHIYAMA Neodry7E is a compact, air-cooled, multi-stage dry-running Roots vacuum pump engineered for high-reliability, low-maintenance operation in demanding laboratory and pilot-scale industrial applications. Unlike conventional oil-lubricated rotary vane or scroll pumps, the Neodry7E employs precision-machined, non-contacting rotor geometry—based on the fundamental principles of the Roots displacement mechanism—to achieve continuous, oil-free vacuum generation. Its synchronized dual-rotor design operates without mechanical contact between rotors or between rotors and stator housing, eliminating wear-related degradation and ensuring long-term dimensional stability. This architecture enables consistent pumping performance across extended service intervals, particularly when handling clean, non-condensable gases such as ambient air or nitrogen. The pump is rated for ultimate pressures down to ≤1.0 Pa (≤7.5 × 10⁻³ Torr) and delivers a nominal pumping speed of 110 L/min at 50 Hz, making it suitable as a primary or booster vacuum source in systems requiring base pressures in the low-Pa range.

Key Features

• Truly oil-free operation: No lubricating oil in the pumping chamber ensures contamination-free vacuum—critical for semiconductor processing, battery electrode drying, lyophilization, and analytical instrumentation.
• Air-cooled thermal management: Eliminates dependency on external cooling water circuits, reducing installation footprint and infrastructure complexity while maintaining stable thermal equilibrium during continuous duty cycles.
• Gas ballast option (N₂-compatible): Enables controlled admission of inert gas into the compression stage to lower partial pressure of condensables—particularly effective for removing water vapor loads up to 120 g/h when operated at full gas ballast flow.
• Non-contact rotor dynamics: Precision-ground stainless steel rotors rotate in precise synchronization via timing gears; zero physical contact ensures no particulate generation, minimal vibration, and predictable lifetime performance.
• Low acoustic signature: Engineered acoustic enclosure and balanced rotor assembly limit operational noise to ≤57 dB(A), supporting integration into shared laboratory spaces and QA/QC environments where ambient noise control is mandated.
• Modular electrical interface: Supports universal input voltage configurations (single-phase 100–240 V AC or three-phase 200–240 V AC, 50/60 Hz), facilitating global deployment without hardware modification.

Sample Compatibility & Compliance

The Neodry7E is optimized for use with non-corrosive, non-explosive, and chemically inert process gases—including ambient air, nitrogen, argon, and helium. It is not rated for solvent vapors, halogenated compounds, or acidic gases without prior consultation and optional material upgrades. As a Class 0 compressed air system per ISO 8573-1, it meets stringent purity requirements for cleanroom-compatible vacuum applications. While not intrinsically safe-certified, its motor complies with IEC 60034-1 efficiency standards and carries CE marking for EMC and LVD directives. The pump supports GLP-compliant documentation packages upon request and is routinely deployed in facilities adhering to ISO 14644-1 Class 5–7 cleanrooms and USP analytical instrument qualification protocols.

Software & Data Management

The Neodry7E operates as a standalone analog-controlled vacuum source and does not include integrated digital controllers or communication interfaces (e.g., RS-485, Modbus, or Ethernet). However, it is fully compatible with third-party vacuum monitoring systems via analog 0–10 V or 4–20 mA pressure feedback signals when paired with an external Pirani or capacitance manometer. For audit-trail compliance in regulated environments (e.g., FDA 21 CFR Part 11), users may integrate the pump into programmable logic controller (PLC)-based vacuum sequencing systems that log runtime, power status, and interlock events. Maintenance logs—including gas ballast usage frequency, operational hours, and filter replacement timestamps—can be tracked using standard laboratory asset management software.

Applications

• Semiconductor fabrication: Backside wafer cooling, vacuum chucking, and pre-process chamber evacuation prior to PVD/CVD steps.
• Lithium-ion battery manufacturing: Electrode drying ovens, slurry degassing, and cell formation vacuum conditioning.
• Pharmaceutical R&D: Lyophilizer primary condenser backing, vacuum filtration, and glovebox atmosphere regeneration.
• Materials science labs: High-vacuum sample preparation for XRD, SEM, and thin-film deposition systems.
• Chemical synthesis: Solvent removal under mild vacuum, inert-gas purging of reaction vessels, and distillation support.

FAQ

Is the Neodry7E suitable for continuous 24/7 operation?
Yes—its air-cooled, non-contact design and 0.4 kW motor are thermally rated for uninterrupted duty cycles in ambient temperatures up to 40 °C.
Does the pump require periodic oil changes?
No—this is a fully dry-running pump with no internal lubrication in the gas path; only timing gear oil (sealed for life) requires inspection every 10,000 operating hours.
Can it handle water vapor from ambient air without gas ballast?
It can tolerate low-level humidity, but sustained exposure to saturated air will cause condensation buildup; gas ballast activation is recommended for >60% RH environments.
What maintenance is required every three years?
At 26,000 hours (≈3 years at 24/7 operation), routine inspection includes rotor clearance verification, bearing condition assessment, and gas ballast valve calibration—no component replacement is mandatory unless anomalous wear is detected.
Is the NW25 flange compatible with ISO-KF standards?
Yes—NW25 is interchangeable with ISO-KF 25; standard clamps and centering rings ensure leak-tight connection to common vacuum tubing and chamber ports.